U

.github/pull_request_template.md

@@ -20,7 +20,7 @@ Your PR title must follow [conventional commits](https://www.conventionalcommits
 
 ### Deployment tag versioning
 
-Has `tag` in `common/version.go` been updated or have you added `bump-version` label to this PR?
+Has `tag` in `common/version.go` been updated?
 
 - [ ] No, this PR doesn't involve a new deployment, git tag, docker image tag
 - [ ] Yes

.github/scripts/bump_version_dot_go.mjs

@@ -1,37 +0,0 @@
-import { URL } from "url";
-import { readFileSync, writeFileSync } from "fs";
-
-const versionFilePath = new URL(
-  "../../common/version/version.go",
-  import.meta.url
-).pathname;
-
-const versionFileContent = readFileSync(versionFilePath, { encoding: "utf-8" });
-
-const currentVersion = versionFileContent.match(
-  /var tag = "(?<version>v(?<major>\d+)\.(?<minor>\d+)\.(?<patch>\d+))"/
-);
-
-try {
-  parseInt(currentVersion.groups.major);
-  parseInt(currentVersion.groups.minor);
-  parseInt(currentVersion.groups.patch);
-} catch (err) {
-  console.error(new Error("Failed to parse version in version.go file"));
-  throw err;
-}
-
-// prettier-ignore
-const newVersion = `v${currentVersion.groups.major}.${currentVersion.groups.minor}.${parseInt(currentVersion.groups.patch) + 1}`;
-
-console.log(
-  `Bump version from ${currentVersion.groups.version} to ${newVersion}`
-);
-
-writeFileSync(
-  versionFilePath,
-  versionFileContent.replace(
-    `var tag = "${currentVersion.groups.version}"`,
-    `var tag = "${newVersion}"`
-  )
-);

.github/workflows/bridge.yml

@@ -1,4 +1,4 @@
-name: Rollup
+name: Bridge
 
 on:
   push:
@@ -8,11 +8,10 @@ on:
       - develop
       - alpha
     paths:
-      - 'rollup/**'
+      - 'bridge/**'
       - 'common/**'
-      - '!common/version/version.go'
       - 'database/**'
-      - '.github/workflows/rollup.yml'
+      - '.github/workflows/bridge.yml'
   pull_request:
     types:
       - opened
@@ -20,11 +19,10 @@ on:
       - synchronize
       - ready_for_review
     paths:
-      - 'rollup/**'
+      - 'bridge/**'
       - 'common/**'
-      - '!common/version/version.go'
       - 'database/**'
-      - '.github/workflows/rollup.yml'
+      - '.github/workflows/bridge.yml'
 
 jobs:
   check:
@@ -45,8 +43,10 @@ jobs:
         version: '0.8.16'
     - name: Install Geth Tools
       uses: gacts/install-geth-tools@v1
+      with:
+        version: 1.10.19
     - name: Lint
-      working-directory: 'rollup'
+      working-directory: 'bridge'
       run: |
         rm -rf $HOME/.cache/golangci-lint
         make mock_abi
@@ -64,14 +64,14 @@ jobs:
     - name: Install goimports
       run: go install golang.org/x/tools/cmd/goimports
     - name: Run goimports lint
-      run: goimports -local scroll-tech/rollup/ -w .
-      working-directory: 'rollup'
+      run: goimports -local scroll-tech/bridge/ -w .
+      working-directory: 'bridge'
     - name: Run go mod tidy
       run: go mod tidy
-      working-directory: 'rollup'
+      working-directory: 'bridge'
     # If there are any diffs from goimports or go mod tidy, fail.
     - name: Verify no changes from goimports and go mod tidy
-      working-directory: 'rollup'
+      working-directory: 'bridge'
       run: |
         if [ -n "$(git status --porcelain)" ]; then
           exit 1
@@ -94,16 +94,18 @@ jobs:
         version: '0.8.16'
     - name: Install Geth Tools
       uses: gacts/install-geth-tools@v1
+      with:
+        version: 1.10.19
     - name: Build prerequisites
       run: |
         make dev_docker
-        make -C rollup mock_abi
-    - name: Build rollup binaries
-      working-directory: 'rollup'
+        make -C bridge mock_abi
+    - name: Build bridge binaries
+      working-directory: 'bridge'
       run: |
-        make rollup_bins
-    - name: Test rollup packages
-      working-directory: 'rollup'
+        make bridge_bins
+    - name: Test bridge packages
+      working-directory: 'bridge'
       run: |
         go test -v -race -gcflags="-l" -ldflags="-s=false" -coverprofile=coverage.txt -covermode=atomic ./...
     - name: Upload coverage reports to Codecov
@@ -111,7 +113,7 @@ jobs:
       env:
         CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
       with:
-        flags: rollup
+        flags: bridge
   # docker-build:
   #   if: github.event.pull_request.draft == false
   #   runs-on: ubuntu-latest

.github/workflows/bump_version.yml

@@ -1,63 +0,0 @@
-name: Bump Version
-
-on:
-  pull_request:
-    branches: [ develop ]
-    types:
-      - opened
-      - reopened
-      - synchronize
-      - ready_for_review
-      - labeled
-
-jobs:
-  try-to-bump:
-    if: contains(github.event.pull_request.labels.*.name, 'bump-version')
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout code
-        uses: actions/checkout@v3
-        with:
-          ref: ${{ github.head_ref }}
-      - name: check diff
-        id: check_diff
-        run: |
-          set -euo pipefail
-
-          # fetch develop branch so that we can diff against later
-          git fetch origin develop
-
-          echo 'checking verion changes in diff...'
-
-          # check if version changed in version.go
-          # note: the grep will fail if use \d instead of [0-9]
-          git diff HEAD..origin/develop --text --no-ext-diff --unified=0 --no-prefix common/version/version.go | grep -E '^\+var tag = "v[0-9]+\.[0-9]+\.[0-9]+"$' && true
-
-          exit_code=$?
-
-          # auto bump if version is not bumped manually
-          echo '> require auto version bump?'
-
-          if [ $exit_code -eq 0 ]; then
-            echo '> no, already bumped'
-            echo "result=no-bump" >> "$GITHUB_OUTPUT"
-          else
-            echo '> yes'
-            echo "result=bump" >> "$GITHUB_OUTPUT"
-          fi
-      - name: Install Node.js 16
-        if: steps.check_diff.outputs.result == 'bump'
-        uses: actions/setup-node@v3
-        with:
-          node-version: 16
-      - name: bump version in common/version/version.go
-        if: steps.check_diff.outputs.result == 'bump'
-        run: node .github/scripts/bump_version_dot_go.mjs
-
-        # Commits made by this Action do not trigger new Workflow runs
-      - uses: stefanzweifel/git-auto-commit-action@3ea6ae190baf489ba007f7c92608f33ce20ef04a
-        if: steps.check_diff.outputs.result == 'bump'
-        with:
-          skip_fetch: true # already did fetch in check diff
-          file_pattern: "common/version/version.go"
-          commit_message: "chore: auto version bump [bot]"

.github/workflows/common.yml

@@ -9,7 +9,6 @@ on:
       - alpha
     paths:
       - 'common/**'
-      - '!common/version/version.go'
       - '.github/workflows/common.yml'
   pull_request:
     types:
@@ -19,7 +18,6 @@ on:
       - ready_for_review
     paths:
       - 'common/**'
-      - '!common/version/version.go'
       - '.github/workflows/common.yml'
 
 jobs:
@@ -90,6 +88,8 @@ jobs:
         version: '0.8.16'
     - name: Install Geth Tools
       uses: gacts/install-geth-tools@v1
+      with:
+        version: 1.10.19
     - name: Build prerequisites
       run: |
         make dev_docker

.github/workflows/coordinator.yml

@@ -10,7 +10,6 @@ on:
     paths:
       - 'coordinator/**'
       - 'common/**'
-      - '!common/version/version.go'
       - 'database/**'
       - '.github/workflows/coordinator.yml'
   pull_request:
@@ -22,7 +21,6 @@ on:
     paths:
       - 'coordinator/**'
       - 'common/**'
-      - '!common/version/version.go'
       - 'database/**'
       - '.github/workflows/coordinator.yml'
 
@@ -106,6 +104,8 @@ jobs:
         version: '0.8.16'
     - name: Install Geth Tools
       uses: gacts/install-geth-tools@v1
+      with:
+        version: 1.10.19
     - name: Build prerequisites
       run: |
         make dev_docker

.github/workflows/database.yml

@@ -10,7 +10,6 @@ on:
     paths:
       - 'database/**'
       - 'common/**'
-      - '!common/version/version.go'
       - '.github/workflows/database.yml'
   pull_request:
     types:
@@ -21,7 +20,6 @@ on:
     paths:
       - 'database/**'
       - 'common/**'
-      - '!common/version/version.go'
       - '.github/workflows/database.yml'
 
 jobs:
@@ -83,6 +81,8 @@ jobs:
         version: '0.8.16'
     - name: Install Geth Tools
       uses: gacts/install-geth-tools@v1
+      with:
+        version: 1.10.19
     - name: Build prerequisites
       run: |
         make dev_docker

.github/workflows/docker.yaml

@@ -48,6 +48,27 @@ jobs:
         tags: scrolltech/gas-oracle:${{github.ref_name}}
         # cache-from: type=gha,scope=${{ github.workflow }}
         # cache-to: type=gha,scope=${{ github.workflow }}
+  msg_relayer:
+    runs-on: ubuntu-latest
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@v2
+    - name: Set up Docker Buildx
+      uses: docker/setup-buildx-action@v2
+    - name: Login to Docker Hub
+      uses: docker/login-action@v2
+      with:
+        username: ${{ secrets.DOCKERHUB_USERNAME }}
+        password: ${{ secrets.DOCKERHUB_TOKEN }}
+    - name: Build and push msg_relayer docker
+      uses: docker/build-push-action@v2
+      with:
+        context: .
+        file: ./build/dockerfiles/msg_relayer.Dockerfile
+        push: true
+        tags: scrolltech/msg-relayer:${{github.ref_name}}
+        # cache-from: type=gha,scope=${{ github.workflow }}
+        # cache-to: type=gha,scope=${{ github.workflow }}
   rollup_relayer:
     runs-on: ubuntu-latest
     steps:

.github/workflows/integration.yaml

@@ -33,10 +33,12 @@ jobs:
         version: '0.8.16'
     - name: Install Geth Tools
       uses: gacts/install-geth-tools@v1
+      with:
+        version: 1.10.19
     - name: Build prerequisites
       run: |
         make dev_docker
-        make -C rollup mock_abi
+        make -C bridge mock_abi
         make -C common/bytecode all
     - name: Run integration tests
       run: |

Makefile

@@ -1,14 +1,12 @@
 .PHONY: check update dev_docker build_test_docker run_test_docker clean
 
-L2GETH_TAG=scroll-v4.3.55
-
 help: ## Display this help message
 	@grep -h \
 		-E '^[a-zA-Z_-]+:.*?## .*$$' $(MAKEFILE_LIST) | \
 		awk 'BEGIN {FS = ":.*?## "}; {printf "\033[36m%-30s\033[0m %s\n", $$1, $$2}'
 
 lint: ## The code's format and security checks.
-	make -C rollup lint
+	make -C bridge lint
 	make -C common lint
 	make -C coordinator lint
 	make -C database lint
@@ -17,15 +15,15 @@ lint: ## The code's format and security checks.
 
 update: ## update dependencies
 	go work sync
-	cd $(PWD)/rollup/ && go get -u github.com/scroll-tech/go-ethereum@${L2GETH_TAG} && go mod tidy
+	cd $(PWD)/bridge/ && go get -u github.com/scroll-tech/go-ethereum@scroll-v4.3.34 && go mod tidy
 	cd $(PWD)/bridge-history-api/ && go get -u github.com/ethereum/go-ethereum@latest && go mod tidy
-	cd $(PWD)/common/ && go get -u github.com/scroll-tech/go-ethereum@${L2GETH_TAG} && go mod tidy
-	cd $(PWD)/coordinator/ && go get -u github.com/scroll-tech/go-ethereum@${L2GETH_TAG} && go mod tidy
-	cd $(PWD)/database/ && go get -u github.com/scroll-tech/go-ethereum@${L2GETH_TAG} && go mod tidy
-	cd $(PWD)/prover/ && go get -u github.com/scroll-tech/go-ethereum@${L2GETH_TAG} && go mod tidy
-	cd $(PWD)/prover-stats-api/ && go get -u github.com/scroll-tech/go-ethereum@${L2GETH_TAG} && go mod tidy
-	cd $(PWD)/tests/integration-test/ && go get -u github.com/scroll-tech/go-ethereum@${L2GETH_TAG} && go mod tidy
-	goimports -local $(PWD)/rollup/ -w .
+	cd $(PWD)/common/ && go get -u github.com/scroll-tech/go-ethereum@scroll-v4.3.34 && go mod tidy
+	cd $(PWD)/coordinator/ && go get -u github.com/scroll-tech/go-ethereum@scroll-v4.3.34 && go mod tidy
+	cd $(PWD)/database/ && go get -u github.com/scroll-tech/go-ethereum@scroll-v4.3.34 && go mod tidy
+	cd $(PWD)/prover/ && go get -u github.com/scroll-tech/go-ethereum@scroll-v4.3.34 && go mod tidy
+	cd $(PWD)/prover-stats-api/ && go get -u github.com/scroll-tech/go-ethereum@scroll-v4.3.34 && go mod tidy
+	cd $(PWD)/tests/integration-test/ && go get -u github.com/scroll-tech/go-ethereum@scroll-v4.3.34 && go mod tidy
+	goimports -local $(PWD)/bridge/ -w .
 	goimports -local $(PWD)/bridge-history-api/ -w .
 	goimports -local $(PWD)/common/ -w .
 	goimports -local $(PWD)/coordinator/ -w .

README.md

@@ -15,14 +15,14 @@ docker pull postgres
 make dev_docker
 ```
 
-## Testing Rollup & Coordinator
+## Testing Bridge & Coordinator
 
 ### For Non-Apple Silicon (M1/M2) Macs
 
 Run the tests using the following commands:
 
 ```bash
-go test -v -race -covermode=atomic scroll-tech/rollup/...
+go test -v -race -covermode=atomic scroll-tech/bridge/...
 go test -tags="mock_verifier" -v -race -covermode=atomic scroll-tech/coordinator/...
 go test -v -race -covermode=atomic scroll-tech/database/...
 go test -v -race -covermode=atomic scroll-tech/common/...
@@ -55,7 +55,7 @@ This command runs a Docker container named `scroll_test_container` from the `scr
 Once the Docker container is running, execute the tests using the following commands:
 
 ```bash
-go test -v -race -covermode=atomic scroll-tech/rollup/...
+go test -v -race -covermode=atomic scroll-tech/bridge/...
 go test -tags="mock_verifier" -v -race -covermode=atomic scroll-tech/coordinator/...
 go test -v -race -covermode=atomic scroll-tech/database/...
 go test -v -race -covermode=atomic scroll-tech/common/...

bridge-history-api/abi/backend_abi.go

@@ -89,6 +89,9 @@ var (
 	// L2FailedRelayedMessageEventSignature = keccak256("FailedRelayedMessage(bytes32)")
 	L2FailedRelayedMessageEventSignature common.Hash
 
+	// L2ImportBlockEventSignature = keccak256("ImportBlock(bytes32,uint256,uint256,uint256,bytes32)")
+	L2ImportBlockEventSignature common.Hash
+
 	// L2AppendMessageEventSignature = keccak256("AppendMessage(uint256,bytes32)")
 	L2AppendMessageEventSignature common.Hash
 )
@@ -150,6 +153,8 @@ func init() {
 	L2RelayedMessageEventSignature = L2ScrollMessengerABI.Events["RelayedMessage"].ID
 	L2FailedRelayedMessageEventSignature = L2ScrollMessengerABI.Events["FailedRelayedMessage"].ID
 
+	L2ImportBlockEventSignature = L1BlockContainerABI.Events["ImportBlock"].ID
+
 	L2AppendMessageEventSignature = L2MessageQueueABI.Events["AppendMessage"].ID
 
 }

bridge-history-api/crossmsg/batch_info_fetcher.go

@@ -95,9 +95,6 @@ func (b *BatchInfoFetcher) fetchBatchInfo() error {
 	} else {
 		startHeight = latestBatchHeight + 1
 	}
-	if startHeight < b.batchInfoStartNumber {
-		startHeight = b.batchInfoStartNumber
-	}
 	for from := startHeight; number >= from; from += fetchLimit {
 		to := from + fetchLimit - 1
 		// number - confirmation can never less than 0 since the for loop condition

bridge-history-api/go.mod

@@ -116,7 +116,7 @@ require (
 	golang.org/x/arch v0.4.0 // indirect
 	golang.org/x/crypto v0.12.0 // indirect
 	golang.org/x/exp v0.0.0-20230810033253-352e893a4cad // indirect
-	golang.org/x/net v0.14.0 // indirect
+	golang.org/x/net v0.12.0 // indirect
 	golang.org/x/sync v0.3.0 // indirect
 	golang.org/x/sys v0.11.0 // indirect
 	golang.org/x/text v0.12.0 // indirect

bridge-history-api/go.sum

@@ -531,8 +531,8 @@ golang.org/x/net v0.0.0-20210405180319-a5a99cb37ef4/go.mod h1:p54w0d4576C0XHj96b
 golang.org/x/net v0.0.0-20211008194852-3b03d305991f/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
 golang.org/x/net v0.0.0-20220722155237-a158d28d115b/go.mod h1:XRhObCWvk6IyKnWLug+ECip1KBveYUHfp+8e9klMJ9c=
 golang.org/x/net v0.6.0/go.mod h1:2Tu9+aMcznHK/AK1HMvgo6xiTLG5rD5rZLDS+rp2Bjs=
-golang.org/x/net v0.14.0 h1:BONx9s002vGdD9umnlX1Po8vOZmrgH34qlHcD1MfK14=
-golang.org/x/net v0.14.0/go.mod h1:PpSgVXXLK0OxS0F31C1/tv6XNguvCrnXIDrFMspZIUI=
+golang.org/x/net v0.12.0 h1:cfawfvKITfUsFCeJIHJrbSxpeu/E81khclypR0GVT50=
+golang.org/x/net v0.12.0/go.mod h1:zEVYFnQC7m/vmpQFELhcD1EWkZlX69l4oqgmer6hfKA=
 golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
 golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20181108010431-42b317875d0f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=

bridge/Makefile

@@ -1,15 +1,17 @@
-.PHONY: mock_abi rollup_bins event_watcher gas_oracle rollup_relayer test lint clean docker
+.PHONY: lint docker clean bridge
 
+IMAGE_NAME=bridge
 IMAGE_VERSION=latest
 REPO_ROOT_DIR=./..
 
 mock_abi:
-	cd .. && go run github.com/scroll-tech/go-ethereum/cmd/abigen --sol ./rollup/mock_bridge/MockBridgeL1.sol --pkg mock_bridge --out ./rollup/mock_bridge/MockBridgeL1.go
-	cd .. && go run github.com/scroll-tech/go-ethereum/cmd/abigen --sol ./rollup/mock_bridge/MockBridgeL2.sol --pkg mock_bridge --out ./rollup/mock_bridge/MockBridgeL2.go
+	cd .. && go run github.com/scroll-tech/go-ethereum/cmd/abigen --sol ./bridge/mock_bridge/MockBridgeL1.sol --pkg mock_bridge --out ./bridge/mock_bridge/MockBridgeL1.go
+	cd .. && go run github.com/scroll-tech/go-ethereum/cmd/abigen --sol ./bridge/mock_bridge/MockBridgeL2.sol --pkg mock_bridge --out ./bridge/mock_bridge/MockBridgeL2.go
 
-rollup_bins: ## Builds the Rollup bins.
+bridge_bins: ## Builds the Bridge bins.
 	go build -o $(PWD)/build/bin/event_watcher ./cmd/event_watcher/
 	go build -o $(PWD)/build/bin/gas_oracle ./cmd/gas_oracle/
+	go build -o $(PWD)/build/bin/message_relayer ./cmd/msg_relayer/
 	go build -o $(PWD)/build/bin/rollup_relayer ./cmd/rollup_relayer/
 
 event_watcher: ## Builds the event_watcher bin
@@ -18,6 +20,9 @@ event_watcher: ## Builds the event_watcher bin
 gas_oracle: ## Builds the gas_oracle bin
 	go build -o $(PWD)/build/bin/gas_oracle ./cmd/gas_oracle/
 
+message_relayer: ## Builds the message_relayer bin
+	go build -o $(PWD)/build/bin/message_relayer ./cmd/msg_relayer/
+
 rollup_relayer: ## Builds the rollup_relayer bin
 	go build -o $(PWD)/build/bin/rollup_relayer ./cmd/rollup_relayer/
 
@@ -34,8 +39,10 @@ docker_push:
 	docker docker push scrolltech/gas-oracle:${IMAGE_VERSION}
 	docker docker push scrolltech/event-watcher:${IMAGE_VERSION}
 	docker docker push scrolltech/rollup-relayer:${IMAGE_VERSION}
+	docker docker push scrolltech/msg-relayer:${IMAGE_VERSION}
 
 docker:
 	DOCKER_BUILDKIT=1 docker build -t scrolltech/gas-oracle:${IMAGE_VERSION} ${REPO_ROOT_DIR}/ -f ${REPO_ROOT_DIR}/build/dockerfiles/gas_oracle.Dockerfile
 	DOCKER_BUILDKIT=1 docker build -t scrolltech/event-watcher:${IMAGE_VERSION} ${REPO_ROOT_DIR}/ -f ${REPO_ROOT_DIR}/build/dockerfiles/event_watcher.Dockerfile
 	DOCKER_BUILDKIT=1 docker build -t scrolltech/rollup-relayer:${IMAGE_VERSION} ${REPO_ROOT_DIR}/ -f ${REPO_ROOT_DIR}/build/dockerfiles/rollup_relayer.Dockerfile
+	DOCKER_BUILDKIT=1 docker build -t scrolltech/msg-relayer:${IMAGE_VERSION} ${REPO_ROOT_DIR}/ -f ${REPO_ROOT_DIR}/build/dockerfiles/msg_relayer.Dockerfile

bridge/README.md

@@ -0,0 +1,36 @@
+# Bridge
+
+This repo contains the Scroll bridge.
+
+In addition, launching the bridge will launch a separate instance of l2geth, and sets up a communication channel
+between the two, over JSON-RPC sockets.
+
+Something we should pay attention is that all private keys inside sender instance cannot be duplicated.
+
+## Dependency
+
++ install `abigen`
+
+``` bash
+go install -v github.com/scroll-tech/go-ethereum/cmd/abigen
+```
+
+## Build
+
+```bash
+make clean
+make bridge
+```
+
+## Start
+* use default ports and config.json
+
+```bash
+./build/bin/bridge --http
+```
+
+* use specified ports and config.json
+
+```bash
+./build/bin/bridge --config ./config.json --http --http.addr localhost --http.port 8290
+```

bridge/abi/bridge_abi.go

@@ -11,6 +11,8 @@ import (
 var (
 	// ScrollChainABI holds information about ScrollChain's context and available invokable methods.
 	ScrollChainABI *abi.ABI
+	// L1ScrollMessengerABI holds information about L1ScrollMessenger's context and available invokable methods.
+	L1ScrollMessengerABI *abi.ABI
 	// L1MessageQueueABI holds information about L1MessageQueue contract's context and available invokable methods.
 	L1MessageQueueABI *abi.ABI
 	// L2GasPriceOracleABI holds information about L2GasPriceOracle's context and available invokable methods.
@@ -18,15 +20,25 @@ var (
 
 	// L2ScrollMessengerABI holds information about L2ScrollMessenger's context and available invokable methods.
 	L2ScrollMessengerABI *abi.ABI
+	// L1BlockContainerABI holds information about L1BlockContainer contract's context and available invokable methods.
+	L1BlockContainerABI *abi.ABI
 	// L1GasPriceOracleABI holds information about L1GasPriceOracle's context and available invokable methods.
 	L1GasPriceOracleABI *abi.ABI
 	// L2MessageQueueABI holds information about L2MessageQueue contract's context and available invokable methods.
 	L2MessageQueueABI *abi.ABI
 
+	// L1SentMessageEventSignature = keccak256("SentMessage(address,address,uint256,uint256,uint256,bytes)")
+	L1SentMessageEventSignature common.Hash
+	// L1RelayedMessageEventSignature = keccak256("RelayedMessage(bytes32)")
+	L1RelayedMessageEventSignature common.Hash
+	// L1FailedRelayedMessageEventSignature = keccak256("FailedRelayedMessage(bytes32)")
+	L1FailedRelayedMessageEventSignature common.Hash
+
 	// L1CommitBatchEventSignature = keccak256("CommitBatch(uint256,bytes32)")
 	L1CommitBatchEventSignature common.Hash
 	// L1FinalizeBatchEventSignature = keccak256("FinalizeBatch(uint256,bytes32,bytes32,bytes32)")
 	L1FinalizeBatchEventSignature common.Hash
+
 	// L1QueueTransactionEventSignature = keccak256("QueueTransaction(address,address,uint256,uint64,uint256,bytes)")
 	L1QueueTransactionEventSignature common.Hash
 
@@ -37,19 +49,28 @@ var (
 	// L2FailedRelayedMessageEventSignature = keccak256("FailedRelayedMessage(bytes32)")
 	L2FailedRelayedMessageEventSignature common.Hash
 
+	// L2ImportBlockEventSignature = keccak256("ImportBlock(bytes32,uint256,uint256,uint256,bytes32)")
+	L2ImportBlockEventSignature common.Hash
+
 	// L2AppendMessageEventSignature = keccak256("AppendMessage(uint256,bytes32)")
 	L2AppendMessageEventSignature common.Hash
 )
 
 func init() {
 	ScrollChainABI, _ = ScrollChainMetaData.GetAbi()
+	L1ScrollMessengerABI, _ = L1ScrollMessengerMetaData.GetAbi()
 	L1MessageQueueABI, _ = L1MessageQueueMetaData.GetAbi()
 	L2GasPriceOracleABI, _ = L2GasPriceOracleMetaData.GetAbi()
 
 	L2ScrollMessengerABI, _ = L2ScrollMessengerMetaData.GetAbi()
+	L1BlockContainerABI, _ = L1BlockContainerMetaData.GetAbi()
 	L2MessageQueueABI, _ = L2MessageQueueMetaData.GetAbi()
 	L1GasPriceOracleABI, _ = L1GasPriceOracleMetaData.GetAbi()
 
+	L1SentMessageEventSignature = L1ScrollMessengerABI.Events["SentMessage"].ID
+	L1RelayedMessageEventSignature = L1ScrollMessengerABI.Events["RelayedMessage"].ID
+	L1FailedRelayedMessageEventSignature = L1ScrollMessengerABI.Events["FailedRelayedMessage"].ID
+
 	L1CommitBatchEventSignature = ScrollChainABI.Events["CommitBatch"].ID
 	L1FinalizeBatchEventSignature = ScrollChainABI.Events["FinalizeBatch"].ID
 
@@ -59,6 +80,8 @@ func init() {
 	L2RelayedMessageEventSignature = L2ScrollMessengerABI.Events["RelayedMessage"].ID
 	L2FailedRelayedMessageEventSignature = L2ScrollMessengerABI.Events["FailedRelayedMessage"].ID
 
+	L2ImportBlockEventSignature = L1BlockContainerABI.Events["ImportBlock"].ID
+
 	L2AppendMessageEventSignature = L2MessageQueueABI.Events["AppendMessage"].ID
 }
 

bridge/abi/bridge_abi_test.go

@@ -11,13 +11,21 @@ import (
 func TestEventSignature(t *testing.T) {
 	assert := assert.New(t)
 
+	assert.Equal(L1SentMessageEventSignature, common.HexToHash("104371f3b442861a2a7b82a070afbbaab748bb13757bf47769e170e37809ec1e"))
+	assert.Equal(L1RelayedMessageEventSignature, common.HexToHash("4641df4a962071e12719d8c8c8e5ac7fc4d97b927346a3d7a335b1f7517e133c"))
+	assert.Equal(L1FailedRelayedMessageEventSignature, common.HexToHash("99d0e048484baa1b1540b1367cb128acd7ab2946d1ed91ec10e3c85e4bf51b8f"))
+
 	assert.Equal(L1CommitBatchEventSignature, common.HexToHash("2c32d4ae151744d0bf0b9464a3e897a1d17ed2f1af71f7c9a75f12ce0d28238f"))
 	assert.Equal(L1FinalizeBatchEventSignature, common.HexToHash("26ba82f907317eedc97d0cbef23de76a43dd6edb563bdb6e9407645b950a7a2d"))
 
+	assert.Equal(L1QueueTransactionEventSignature, common.HexToHash("69cfcb8e6d4192b8aba9902243912587f37e550d75c1fa801491fce26717f37e"))
+
 	assert.Equal(L2SentMessageEventSignature, common.HexToHash("104371f3b442861a2a7b82a070afbbaab748bb13757bf47769e170e37809ec1e"))
 	assert.Equal(L2RelayedMessageEventSignature, common.HexToHash("4641df4a962071e12719d8c8c8e5ac7fc4d97b927346a3d7a335b1f7517e133c"))
 	assert.Equal(L2FailedRelayedMessageEventSignature, common.HexToHash("99d0e048484baa1b1540b1367cb128acd7ab2946d1ed91ec10e3c85e4bf51b8f"))
 
+	assert.Equal(L2ImportBlockEventSignature, common.HexToHash("a7823f45e1ee21f9530b77959b57507ad515a14fa9fa24d262ee80e79b2b5745"))
+
 	assert.Equal(L2AppendMessageEventSignature, common.HexToHash("faa617c2d8ce12c62637dbce76efcc18dae60574aa95709bdcedce7e76071693"))
 }
 
@@ -109,3 +117,12 @@ func TestPackSetL2BaseFee(t *testing.T) {
 	_, err = l2GasOracleABI.Pack("setL2BaseFee", baseFee)
 	assert.NoError(err)
 }
+
+func TestPackImportBlock(t *testing.T) {
+	assert := assert.New(t)
+
+	l1BlockContainerABI := L1BlockContainerABI
+
+	_, err := l1BlockContainerABI.Pack("importBlockHeader", common.Hash{}, []byte{}, false)
+	assert.NoError(err)
+}

bridge/cmd/event_watcher/app/app.go

@@ -7,7 +7,6 @@ import (
 	"os/signal"
 	"time"
 
-	"github.com/prometheus/client_golang/prometheus"
 	"github.com/scroll-tech/go-ethereum/ethclient"
 	"github.com/scroll-tech/go-ethereum/log"
 	"github.com/urfave/cli/v2"
@@ -17,8 +16,8 @@ import (
 	"scroll-tech/common/utils"
 	"scroll-tech/common/version"
 
-	"scroll-tech/rollup/internal/config"
-	"scroll-tech/rollup/internal/controller/watcher"
+	"scroll-tech/bridge/internal/config"
+	"scroll-tech/bridge/internal/controller/watcher"
 )
 
 var app *cli.App
@@ -60,8 +59,8 @@ func action(ctx *cli.Context) error {
 		}
 	}()
 
-	registry := prometheus.DefaultRegisterer
-	metrics.Server(ctx, registry.(*prometheus.Registry))
+	// Start metrics server.
+	metrics.Serve(subCtx, ctx)
 	l1client, err := ethclient.Dial(cfg.L1Config.Endpoint)
 	if err != nil {
 		log.Error("failed to connect l1 geth", "config file", cfgFile, "error", err)
@@ -73,12 +72,8 @@ func action(ctx *cli.Context) error {
 		log.Error("failed to connect l2 geth", "config file", cfgFile, "error", err)
 		return err
 	}
-
-	l1watcher := watcher.NewL1WatcherClient(ctx.Context, l1client, cfg.L1Config.StartHeight, cfg.L1Config.Confirmations,
-		cfg.L1Config.L1MessageQueueAddress, cfg.L1Config.ScrollChainContractAddress, db, registry)
-
-	l2watcher := watcher.NewL2WatcherClient(ctx.Context, l2client, cfg.L2Config.Confirmations, cfg.L2Config.L2MessengerAddress,
-		cfg.L2Config.L2MessageQueueAddress, cfg.L2Config.WithdrawTrieRootSlot, db, registry)
+	l1watcher := watcher.NewL1WatcherClient(ctx.Context, l1client, cfg.L1Config.StartHeight, cfg.L1Config.Confirmations, cfg.L1Config.L1MessengerAddress, cfg.L1Config.L1MessageQueueAddress, cfg.L1Config.ScrollChainContractAddress, db)
+	l2watcher := watcher.NewL2WatcherClient(ctx.Context, l2client, cfg.L2Config.Confirmations, cfg.L2Config.L2MessengerAddress, cfg.L2Config.L2MessageQueueAddress, cfg.L2Config.WithdrawTrieRootSlot, db)
 
 	go utils.Loop(subCtx, 10*time.Second, func() {
 		if loopErr := l1watcher.FetchContractEvent(); loopErr != nil {
@@ -89,7 +84,6 @@ func action(ctx *cli.Context) error {
 	// Start l2 watcher process
 	go utils.Loop(subCtx, 2*time.Second, l2watcher.FetchContractEvent)
 	// Finish start all l2 functions
-
 	log.Info("Start event-watcher successfully")
 
 	// Catch CTRL-C to ensure a graceful shutdown.

bridge/cmd/event_watcher/main.go

@@ -0,0 +1,7 @@
+package main
+
+import "scroll-tech/bridge/cmd/event_watcher/app"
+
+func main() {
+	app.Run()
+}

bridge/cmd/gas_oracle/app/app.go

@@ -7,7 +7,6 @@ import (
 	"os/signal"
 	"time"
 
-	"github.com/prometheus/client_golang/prometheus"
 	"github.com/scroll-tech/go-ethereum/ethclient"
 	"github.com/scroll-tech/go-ethereum/log"
 	"github.com/urfave/cli/v2"
@@ -17,10 +16,10 @@ import (
 	"scroll-tech/common/utils"
 	"scroll-tech/common/version"
 
-	"scroll-tech/rollup/internal/config"
-	"scroll-tech/rollup/internal/controller/relayer"
-	"scroll-tech/rollup/internal/controller/watcher"
-	butils "scroll-tech/rollup/internal/utils"
+	"scroll-tech/bridge/internal/config"
+	"scroll-tech/bridge/internal/controller/relayer"
+	"scroll-tech/bridge/internal/controller/watcher"
+	butils "scroll-tech/bridge/internal/utils"
 )
 
 var app *cli.App
@@ -62,8 +61,8 @@ func action(ctx *cli.Context) error {
 		}
 	}()
 
-	registry := prometheus.DefaultRegisterer
-	metrics.Server(ctx, registry.(*prometheus.Registry))
+	// Start metrics server.
+	metrics.Serve(subCtx, ctx)
 
 	l1client, err := ethclient.Dial(cfg.L1Config.Endpoint)
 	if err != nil {
@@ -78,14 +77,15 @@ func action(ctx *cli.Context) error {
 		return err
 	}
 
-	l1watcher := watcher.NewL1WatcherClient(ctx.Context, l1client, cfg.L1Config.StartHeight, cfg.L1Config.Confirmations, cfg.L1Config.L1MessageQueueAddress, cfg.L1Config.ScrollChainContractAddress, db, registry)
+	l1watcher := watcher.NewL1WatcherClient(ctx.Context, l1client, cfg.L1Config.StartHeight, cfg.L1Config.Confirmations,
+		cfg.L1Config.L1MessengerAddress, cfg.L1Config.L1MessageQueueAddress, cfg.L1Config.ScrollChainContractAddress, db)
 
-	l1relayer, err := relayer.NewLayer1Relayer(ctx.Context, db, cfg.L1Config.RelayerConfig, registry)
+	l1relayer, err := relayer.NewLayer1Relayer(ctx.Context, db, cfg.L1Config.RelayerConfig)
 	if err != nil {
 		log.Error("failed to create new l1 relayer", "config file", cfgFile, "error", err)
 		return err
 	}
-	l2relayer, err := relayer.NewLayer2Relayer(ctx.Context, l2client, db, cfg.L2Config.RelayerConfig, false /* initGenesis */, registry)
+	l2relayer, err := relayer.NewLayer2Relayer(ctx.Context, l2client, db, cfg.L2Config.RelayerConfig, false /* initGenesis */)
 	if err != nil {
 		log.Error("failed to create new l2 relayer", "config file", cfgFile, "error", err)
 		return err

bridge/cmd/gas_oracle/main.go

@@ -0,0 +1,7 @@
+package main
+
+import "scroll-tech/bridge/cmd/gas_oracle/app"
+
+func main() {
+	app.Run()
+}

bridge/cmd/mock_app.go

@@ -11,7 +11,7 @@ import (
 	"scroll-tech/common/docker"
 	"scroll-tech/common/utils"
 
-	"scroll-tech/rollup/internal/config"
+	"scroll-tech/bridge/internal/config"
 )
 
 // MockApp mockApp-test client manager.
@@ -22,29 +22,29 @@ type MockApp struct {
 	mockApps map[utils.MockAppName]docker.AppAPI
 
 	originFile string
-	rollupFile string
+	bridgeFile string
 
 	args []string
 }
 
-// NewRollupApp return a new rollupApp manager, name mush be one them.
-func NewRollupApp(base *docker.App, file string) *MockApp {
+// NewBridgeApp return a new bridgeApp manager, name mush be one them.
+func NewBridgeApp(base *docker.App, file string) *MockApp {
 
-	rollupFile := fmt.Sprintf("/tmp/%d_rollup-config.json", base.Timestamp)
-	rollupApp := &MockApp{
+	bridgeFile := fmt.Sprintf("/tmp/%d_bridge-config.json", base.Timestamp)
+	bridgeApp := &MockApp{
 		base:       base,
 		mockApps:   make(map[utils.MockAppName]docker.AppAPI),
 		originFile: file,
-		rollupFile: rollupFile,
-		args:       []string{"--log.debug", "--config", rollupFile},
+		bridgeFile: bridgeFile,
+		args:       []string{"--log.debug", "--config", bridgeFile},
 	}
-	if err := rollupApp.MockConfig(true); err != nil {
+	if err := bridgeApp.MockConfig(true); err != nil {
 		panic(err)
 	}
-	return rollupApp
+	return bridgeApp
 }
 
-// RunApp run rollup-test child process by multi parameters.
+// RunApp run bridge-test child process by multi parameters.
 func (b *MockApp) RunApp(t *testing.T, name utils.MockAppName, args ...string) {
 	if !(name == utils.EventWatcherApp ||
 		name == utils.GasOracleApp ||
@@ -72,16 +72,16 @@ func (b *MockApp) WaitExit() {
 	b.mockApps = make(map[utils.MockAppName]docker.AppAPI)
 }
 
-// Free stop and release rollup mocked apps.
+// Free stop and release bridge mocked apps.
 func (b *MockApp) Free() {
 	b.WaitExit()
-	_ = os.Remove(b.rollupFile)
+	_ = os.Remove(b.bridgeFile)
 }
 
-// MockConfig creates a new rollup config.
+// MockConfig creates a new bridge config.
 func (b *MockApp) MockConfig(store bool) error {
 	base := b.base
-	// Load origin rollup config file.
+	// Load origin bridge config file.
 	cfg, err := config.NewConfig(b.originFile)
 	if err != nil {
 		return err
@@ -97,10 +97,10 @@ func (b *MockApp) MockConfig(store bool) error {
 	if !store {
 		return nil
 	}
-	// Store changed rollup config into a temp file.
+	// Store changed bridge config into a temp file.
 	data, err := json.Marshal(b.Config)
 	if err != nil {
 		return err
 	}
-	return os.WriteFile(b.rollupFile, data, 0600)
+	return os.WriteFile(b.bridgeFile, data, 0600)
 }

bridge/cmd/msg_relayer/app/app.go

@@ -0,0 +1,93 @@
+package app
+
+import (
+	"context"
+	"fmt"
+	"os"
+	"os/signal"
+	"time"
+
+	"github.com/scroll-tech/go-ethereum/log"
+	"github.com/urfave/cli/v2"
+
+	"scroll-tech/common/database"
+	"scroll-tech/common/metrics"
+	"scroll-tech/common/utils"
+	"scroll-tech/common/version"
+
+	"scroll-tech/bridge/internal/config"
+	"scroll-tech/bridge/internal/controller/relayer"
+)
+
+var app *cli.App
+
+func init() {
+	// Set up message-relayer app info.
+	app = cli.NewApp()
+	app.Action = action
+	app.Name = "message-relayer"
+	app.Usage = "The Scroll Message Relayer"
+	app.Description = "Message Relayer contains two main service: 1) relay l1 message to l2. 2) relay l2 message to l1."
+	app.Version = version.Version
+	app.Flags = append(app.Flags, utils.CommonFlags...)
+	app.Commands = []*cli.Command{}
+	app.Before = func(ctx *cli.Context) error {
+		return utils.LogSetup(ctx)
+	}
+	// Register `message-relayer-test` app for integration-test.
+	utils.RegisterSimulation(app, utils.MessageRelayerApp)
+}
+
+func action(ctx *cli.Context) error {
+	// Load config file.
+	cfgFile := ctx.String(utils.ConfigFileFlag.Name)
+	cfg, err := config.NewConfig(cfgFile)
+	if err != nil {
+		log.Crit("failed to load config file", "config file", cfgFile, "error", err)
+	}
+
+	subCtx, cancel := context.WithCancel(ctx.Context)
+	// Init db connection
+	db, err := database.InitDB(cfg.DBConfig)
+	if err != nil {
+		log.Crit("failed to init db connection", "err", err)
+	}
+	defer func() {
+		cancel()
+		if err = database.CloseDB(db); err != nil {
+			log.Error("can not close ormFactory", "error", err)
+		}
+	}()
+
+	// Start metrics server.
+	metrics.Serve(subCtx, ctx)
+
+	l1relayer, err := relayer.NewLayer1Relayer(ctx.Context, db, cfg.L1Config.RelayerConfig)
+	if err != nil {
+		log.Error("failed to create new l1 relayer", "config file", cfgFile, "error", err)
+		return err
+	}
+
+	// Start l1relayer process
+	go utils.Loop(subCtx, 10*time.Second, l1relayer.ProcessSavedEvents)
+
+	// Finish start all message relayer functions
+	log.Info("Start message-relayer successfully")
+
+	// Catch CTRL-C to ensure a graceful shutdown.
+	interrupt := make(chan os.Signal, 1)
+	signal.Notify(interrupt, os.Interrupt)
+
+	// Wait until the interrupt signal is received from an OS signal.
+	<-interrupt
+
+	return nil
+}
+
+// Run message_relayer cmd instance.
+func Run() {
+	if err := app.Run(os.Args); err != nil {
+		_, _ = fmt.Fprintln(os.Stderr, err)
+		os.Exit(1)
+	}
+}

bridge/cmd/msg_relayer/main.go

@@ -0,0 +1,7 @@
+package main
+
+import "scroll-tech/bridge/cmd/msg_relayer/app"
+
+func main() {
+	app.Run()
+}

bridge/cmd/rollup_relayer/app/app.go

@@ -7,7 +7,6 @@ import (
 	"os/signal"
 	"time"
 
-	"github.com/prometheus/client_golang/prometheus"
 	"github.com/scroll-tech/go-ethereum/ethclient"
 	"github.com/scroll-tech/go-ethereum/log"
 	"github.com/urfave/cli/v2"
@@ -17,10 +16,10 @@ import (
 	"scroll-tech/common/utils"
 	"scroll-tech/common/version"
 
-	"scroll-tech/rollup/internal/config"
-	"scroll-tech/rollup/internal/controller/relayer"
-	"scroll-tech/rollup/internal/controller/watcher"
-	butils "scroll-tech/rollup/internal/utils"
+	"scroll-tech/bridge/internal/config"
+	"scroll-tech/bridge/internal/controller/relayer"
+	"scroll-tech/bridge/internal/controller/watcher"
+	butils "scroll-tech/bridge/internal/utils"
 )
 
 var app *cli.App
@@ -63,8 +62,8 @@ func action(ctx *cli.Context) error {
 		}
 	}()
 
-	registry := prometheus.DefaultRegisterer
-	metrics.Server(ctx, registry.(*prometheus.Registry))
+	// Start metrics server.
+	metrics.Serve(subCtx, ctx)
 
 	// Init l2geth connection
 	l2client, err := ethclient.Dial(cfg.L2Config.Endpoint)
@@ -74,26 +73,26 @@ func action(ctx *cli.Context) error {
 	}
 
 	initGenesis := ctx.Bool(utils.ImportGenesisFlag.Name)
-	l2relayer, err := relayer.NewLayer2Relayer(ctx.Context, l2client, db, cfg.L2Config.RelayerConfig, initGenesis, registry)
+	l2relayer, err := relayer.NewLayer2Relayer(ctx.Context, l2client, db, cfg.L2Config.RelayerConfig, initGenesis)
 	if err != nil {
 		log.Error("failed to create l2 relayer", "config file", cfgFile, "error", err)
 		return err
 	}
 
-	chunkProposer := watcher.NewChunkProposer(subCtx, cfg.L2Config.ChunkProposerConfig, db, registry)
+	chunkProposer := watcher.NewChunkProposer(subCtx, cfg.L2Config.ChunkProposerConfig, db)
 	if err != nil {
 		log.Error("failed to create chunkProposer", "config file", cfgFile, "error", err)
 		return err
 	}
 
-	batchProposer := watcher.NewBatchProposer(subCtx, cfg.L2Config.BatchProposerConfig, db, registry)
+	batchProposer := watcher.NewBatchProposer(subCtx, cfg.L2Config.BatchProposerConfig, db)
 	if err != nil {
 		log.Error("failed to create batchProposer", "config file", cfgFile, "error", err)
 		return err
 	}
 
 	l2watcher := watcher.NewL2WatcherClient(subCtx, l2client, cfg.L2Config.Confirmations, cfg.L2Config.L2MessengerAddress,
-		cfg.L2Config.L2MessageQueueAddress, cfg.L2Config.WithdrawTrieRootSlot, db, registry)
+		cfg.L2Config.L2MessageQueueAddress, cfg.L2Config.WithdrawTrieRootSlot, db)
 
 	// Watcher loop to fetch missing blocks
 	go utils.LoopWithContext(subCtx, 2*time.Second, func(ctx context.Context) {
@@ -107,11 +106,11 @@ func action(ctx *cli.Context) error {
 
 	go utils.Loop(subCtx, 2*time.Second, chunkProposer.TryProposeChunk)
 
-	go utils.Loop(subCtx, 10*time.Second, batchProposer.TryProposeBatch)
+	go utils.Loop(subCtx, 2*time.Second, batchProposer.TryProposeBatch)
 
 	go utils.Loop(subCtx, 2*time.Second, l2relayer.ProcessPendingBatches)
 
-	go utils.Loop(subCtx, 15*time.Second, l2relayer.ProcessCommittedBatches)
+	go utils.Loop(subCtx, 10*time.Second, l2relayer.ProcessCommittedBatches)
 
 	// Finish start all rollup relayer functions.
 	log.Info("Start rollup-relayer successfully")

bridge/cmd/rollup_relayer/main.go

@@ -0,0 +1,7 @@
+package main
+
+import "scroll-tech/bridge/cmd/rollup_relayer/app"
+
+func main() {
+	app.Run()
+}

bridge/conf/config.json

@@ -2,10 +2,12 @@
   "l1_config": {
     "confirmations": "0x6",
     "endpoint": "DUMMY_ENDPOINT",
+    "l1_messenger_address": "0x0000000000000000000000000000000000000000",
     "l1_message_queue_address": "0x0000000000000000000000000000000000000000",
     "scroll_chain_address": "0x0000000000000000000000000000000000000000",
     "start_height": 0,
     "relayer_config": {
+      "messenger_contract_address": "0x0000000000000000000000000000000000000000",
       "gas_price_oracle_address": "0x0000000000000000000000000000000000000000",
       "sender_config": {
         "endpoint": "/var/lib/jenkins/workspace/SequencerPipeline/MyPrivateNetwork/geth.ipc",
@@ -25,6 +27,7 @@
         "gas_price_diff": 50000
       },
       "finalize_batch_interval_sec": 0,
+      "message_sender_private_key": "1212121212121212121212121212121212121212121212121212121212121212",
       "gas_oracle_sender_private_key": "1313131313131313131313131313131313131313131313131313131313131313"
     }
   },
@@ -35,6 +38,7 @@
     "l2_message_queue_address": "0x0000000000000000000000000000000000000000",
     "relayer_config": {
       "rollup_contract_address": "0x0000000000000000000000000000000000000000",
+      "messenger_contract_address": "0x0000000000000000000000000000000000000000",
       "gas_price_oracle_address": "0x0000000000000000000000000000000000000000",
       "sender_config": {
         "endpoint": "DUMMY_ENDPOINT",
@@ -53,21 +57,18 @@
         "min_gas_price": 0,
         "gas_price_diff": 50000
       },
-      "chain_monitor": {
-        "timeout": 3,
-        "try_times": 5,
-        "base_url": "http://localhost:8750"
-      },
       "finalize_batch_interval_sec": 0,
+      "message_sender_private_key": "1212121212121212121212121212121212121212121212121212121212121212",
       "gas_oracle_sender_private_key": "1313131313131313131313131313131313131313131313131313131313131313",
       "commit_sender_private_key": "1414141414141414141414141414141414141414141414141414141414141414",
-      "finalize_sender_private_key": "1515151515151515151515151515151515151515151515151515151515151515",
-      "gas_cost_increase_multiplier": 1.2
+      "finalize_sender_private_key": "1515151515151515151515151515151515151515151515151515151515151515"
     },
     "chunk_proposer_config": {
-      "max_tx_num_per_chunk": 1123,
+      "max_tx_gas_per_chunk": 1123456,
+      "max_l2_tx_num_per_chunk": 1123,
       "max_l1_commit_gas_per_chunk": 11234567,
       "max_l1_commit_calldata_size_per_chunk": 112345,
+      "min_l1_commit_calldata_size_per_chunk": 11234,
       "chunk_timeout_sec": 300,
       "max_row_consumption_per_chunk": 1048319,
       "gas_cost_increase_multiplier": 1.2
@@ -76,6 +77,7 @@
       "max_chunk_num_per_batch": 112,
       "max_l1_commit_gas_per_batch": 11234567,
       "max_l1_commit_calldata_size_per_batch": 112345,
+      "min_chunk_num_per_batch": 11,
       "batch_timeout_sec": 300,
       "gas_cost_increase_multiplier": 1.2
     }

bridge/go.mod

@@ -1,14 +1,11 @@
-module scroll-tech/rollup
+module scroll-tech/bridge
 
 go 1.19
 
 require (
 	github.com/agiledragon/gomonkey/v2 v2.9.0
-	github.com/gin-gonic/gin v1.9.1
-	github.com/go-resty/resty/v2 v2.7.0
 	github.com/orcaman/concurrent-map/v2 v2.0.1
-	github.com/prometheus/client_golang v1.14.0
-	github.com/scroll-tech/go-ethereum v1.10.14-0.20230829000527-f883dcdc21fc
+	github.com/scroll-tech/go-ethereum v1.10.14-0.20230812030736-25fe3ba69a28
 	github.com/smartystreets/goconvey v1.8.0
 	github.com/stretchr/testify v1.8.3
 	github.com/urfave/cli/v2 v2.25.7
@@ -16,23 +13,13 @@ require (
 )
 
 require (
-	github.com/beorn7/perks v1.0.1 // indirect
 	github.com/btcsuite/btcd v0.20.1-beta // indirect
-	github.com/bytedance/sonic v1.9.2 // indirect
 	github.com/cespare/xxhash/v2 v2.2.0 // indirect
-	github.com/chenzhuoyu/base64x v0.0.0-20221115062448-fe3a3abad311 // indirect
 	github.com/cpuguy83/go-md2man/v2 v2.0.2 // indirect
 	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/deckarep/golang-set v1.8.0 // indirect
-	github.com/gabriel-vasile/mimetype v1.4.2 // indirect
-	github.com/gin-contrib/sse v0.1.0 // indirect
 	github.com/go-ole/go-ole v1.2.6 // indirect
-	github.com/go-playground/locales v0.14.1 // indirect
-	github.com/go-playground/universal-translator v0.18.1 // indirect
-	github.com/go-playground/validator/v10 v10.14.1 // indirect
 	github.com/go-stack/stack v1.8.1 // indirect
-	github.com/goccy/go-json v0.10.2 // indirect
-	github.com/golang/protobuf v1.5.2 // indirect
 	github.com/golang/snappy v0.0.5-0.20220116011046-fa5810519dcb // indirect
 	github.com/google/uuid v1.3.0 // indirect
 	github.com/gopherjs/gopherjs v1.17.2 // indirect
@@ -43,23 +30,13 @@ require (
 	github.com/jackpal/go-nat-pmp v1.0.2 // indirect
 	github.com/jinzhu/inflection v1.0.0 // indirect
 	github.com/jinzhu/now v1.1.5 // indirect
-	github.com/json-iterator/go v1.1.12 // indirect
 	github.com/jtolds/gls v4.20.0+incompatible // indirect
-	github.com/klauspost/cpuid/v2 v2.2.5 // indirect
 	github.com/kr/pretty v0.3.1 // indirect
-	github.com/leodido/go-urn v1.2.4 // indirect
 	github.com/mattn/go-colorable v0.1.13 // indirect
 	github.com/mattn/go-isatty v0.0.19 // indirect
 	github.com/mattn/go-runewidth v0.0.14 // indirect
-	github.com/matttproud/golang_protobuf_extensions v1.0.4 // indirect
 	github.com/mitchellh/mapstructure v1.5.0 // indirect
-	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
-	github.com/modern-go/reflect2 v1.0.2 // indirect
-	github.com/pelletier/go-toml/v2 v2.0.8 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
-	github.com/prometheus/client_model v0.3.0 // indirect
-	github.com/prometheus/common v0.39.0 // indirect
-	github.com/prometheus/procfs v0.9.0 // indirect
 	github.com/rivo/uniseg v0.4.4 // indirect
 	github.com/rjeczalik/notify v0.9.1 // indirect
 	github.com/rogpeppe/go-internal v1.10.0 // indirect
@@ -70,19 +47,14 @@ require (
 	github.com/status-im/keycard-go v0.2.0 // indirect
 	github.com/tklauser/go-sysconf v0.3.11 // indirect
 	github.com/tklauser/numcpus v0.6.0 // indirect
-	github.com/twitchyliquid64/golang-asm v0.15.1 // indirect
 	github.com/tyler-smith/go-bip39 v1.1.0 // indirect
-	github.com/ugorji/go/codec v1.2.11 // indirect
 	github.com/xrash/smetrics v0.0.0-20201216005158-039620a65673 // indirect
 	github.com/yusufpapurcu/wmi v1.2.2 // indirect
-	golang.org/x/arch v0.4.0 // indirect
 	golang.org/x/crypto v0.12.0 // indirect
-	golang.org/x/net v0.14.0 // indirect
 	golang.org/x/sync v0.3.0 // indirect
 	golang.org/x/sys v0.11.0 // indirect
-	golang.org/x/text v0.12.0 // indirect
 	golang.org/x/time v0.3.0 // indirect
-	google.golang.org/protobuf v1.31.0 // indirect
+	gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c // indirect
 	gopkg.in/natefinch/npipe.v2 v2.0.0-20160621034901-c1b8fa8bdcce // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )

bridge/go.sum

@@ -2,8 +2,6 @@ github.com/VictoriaMetrics/fastcache v1.6.0 h1:C/3Oi3EiBCqufydp1neRZkqcwmEiuRT9c
 github.com/aead/siphash v1.0.1/go.mod h1:Nywa3cDsYNNK3gaciGTWPwHt0wlpNV15vwmswBAUSII=
 github.com/agiledragon/gomonkey/v2 v2.9.0 h1:PDiKKybR596O6FHW+RVSG0Z7uGCBNbmbUXh3uCNQ7Hc=
 github.com/agiledragon/gomonkey/v2 v2.9.0/go.mod h1:ap1AmDzcVOAz1YpeJ3TCzIgstoaWLA6jbbgxfB4w2iY=
-github.com/beorn7/perks v1.0.1 h1:VlbKKnNfV8bJzeqoa4cOKqO6bYr3WgKZxO8Z16+hsOM=
-github.com/beorn7/perks v1.0.1/go.mod h1:G2ZrVWU2WbWT9wwq4/hrbKbnv/1ERSJQ0ibhJ6rlkpw=
 github.com/btcsuite/btcd v0.20.1-beta h1:Ik4hyJqN8Jfyv3S4AGBOmyouMsYE3EdYODkMbQjwPGw=
 github.com/btcsuite/btcd v0.20.1-beta/go.mod h1:wVuoA8VJLEcwgqHBwHmzLRazpKxTv13Px/pDuV7OomQ=
 github.com/btcsuite/btclog v0.0.0-20170628155309-84c8d2346e9f/go.mod h1:TdznJufoqS23FtqVCzL0ZqgP5MqXbb4fg/WgDys70nA=
@@ -13,20 +11,13 @@ github.com/btcsuite/goleveldb v0.0.0-20160330041536-7834afc9e8cd/go.mod h1:F+uVa
 github.com/btcsuite/snappy-go v0.0.0-20151229074030-0bdef8d06723/go.mod h1:8woku9dyThutzjeg+3xrA5iCpBRH8XEEg3lh6TiUghc=
 github.com/btcsuite/websocket v0.0.0-20150119174127-31079b680792/go.mod h1:ghJtEyQwv5/p4Mg4C0fgbePVuGr935/5ddU9Z3TmDRY=
 github.com/btcsuite/winsvc v1.0.0/go.mod h1:jsenWakMcC0zFBFurPLEAyrnc/teJEM1O46fmI40EZs=
-github.com/bytedance/sonic v1.5.0/go.mod h1:ED5hyg4y6t3/9Ku1R6dU/4KyJ48DZ4jPhfY1O2AihPM=
-github.com/bytedance/sonic v1.9.2 h1:GDaNjuWSGu09guE9Oql0MSTNhNCLlWwO8y/xM5BzcbM=
-github.com/bytedance/sonic v1.9.2/go.mod h1:i736AoUSYt75HyZLoJW9ERYxcy6eaN6h4BZXU064P/U=
 github.com/cespare/cp v0.1.0 h1:SE+dxFebS7Iik5LK0tsi1k9ZCxEaFX4AjQmoyA+1dJk=
 github.com/cespare/xxhash/v2 v2.2.0 h1:DC2CZ1Ep5Y4k3ZQ899DldepgrayRUGE6BBZ/cd9Cj44=
 github.com/cespare/xxhash/v2 v2.2.0/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
-github.com/chenzhuoyu/base64x v0.0.0-20211019084208-fb5309c8db06/go.mod h1:DH46F32mSOjUmXrMHnKwZdA8wcEefY7UVqBKYGjpdQY=
-github.com/chenzhuoyu/base64x v0.0.0-20221115062448-fe3a3abad311 h1:qSGYFH7+jGhDF8vLC+iwCD4WpbV1EBDSzWkJODFLams=
-github.com/chenzhuoyu/base64x v0.0.0-20221115062448-fe3a3abad311/go.mod h1:b583jCggY9gE99b6G5LEC39OIiVsWj+R97kbl5odCEk=
 github.com/cpuguy83/go-md2man/v2 v2.0.2 h1:p1EgwI/C7NhT0JmVkwCD2ZBK8j4aeHQX2pMHHBfMQ6w=
 github.com/cpuguy83/go-md2man/v2 v2.0.2/go.mod h1:tgQtvFlXSQOSOSIRvRPT7W67SCa46tRHOmNcaadrF8o=
 github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
 github.com/davecgh/go-spew v0.0.0-20171005155431-ecdeabc65495/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
-github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/deckarep/golang-set v1.8.0 h1:sk9/l/KqpunDwP7pSjUg0keiOOLEnOBHzykLrsPppp4=
@@ -34,38 +25,14 @@ github.com/deckarep/golang-set v1.8.0/go.mod h1:5nI87KwE7wgsBU1F4GKAw2Qod7p5kyS3
 github.com/edsrzf/mmap-go v1.0.0 h1:CEBF7HpRnUCSJgGUb5h1Gm7e3VkmVDrR8lvWVLtrOFw=
 github.com/fjl/memsize v0.0.0-20190710130421-bcb5799ab5e5 h1:FtmdgXiUlNeRsoNMFlKLDt+S+6hbjVMEW6RGQ7aUf7c=
 github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo=
-github.com/gabriel-vasile/mimetype v1.4.2 h1:w5qFW6JKBz9Y393Y4q372O9A7cUSequkh1Q7OhCmWKU=
-github.com/gabriel-vasile/mimetype v1.4.2/go.mod h1:zApsH/mKG4w07erKIaJPFiX0Tsq9BFQgN3qGY5GnNgA=
 github.com/gballet/go-libpcsclite v0.0.0-20190607065134-2772fd86a8ff h1:tY80oXqGNY4FhTFhk+o9oFHGINQ/+vhlm8HFzi6znCI=
-github.com/gin-contrib/sse v0.1.0 h1:Y/yl/+YNO8GZSjAhjMsSuLt29uWRFHdHYUb5lYOV9qE=
-github.com/gin-contrib/sse v0.1.0/go.mod h1:RHrZQHXnP2xjPF+u1gW/2HnVO7nvIa9PG3Gm+fLHvGI=
-github.com/gin-gonic/gin v1.9.1 h1:4idEAncQnU5cB7BeOkPtxjfCSye0AAm1R0RVIqJ+Jmg=
-github.com/gin-gonic/gin v1.9.1/go.mod h1:hPrL7YrpYKXt5YId3A/Tnip5kqbEAP+KLuI3SUcPTeU=
 github.com/go-ole/go-ole v1.2.6 h1:/Fpf6oFPoeFik9ty7siob0G6Ke8QvQEuVcuChpwXzpY=
 github.com/go-ole/go-ole v1.2.6/go.mod h1:pprOEPIfldk/42T2oK7lQ4v4JSDwmV0As9GaiUsvbm0=
-github.com/go-playground/assert/v2 v2.2.0 h1:JvknZsQTYeFEAhQwI4qEt9cyV5ONwRHC+lYKSsYSR8s=
-github.com/go-playground/locales v0.14.1 h1:EWaQ/wswjilfKLTECiXz7Rh+3BjFhfDFKv/oXslEjJA=
-github.com/go-playground/locales v0.14.1/go.mod h1:hxrqLVvrK65+Rwrd5Fc6F2O76J/NuW9t0sjnWqG1slY=
-github.com/go-playground/universal-translator v0.18.1 h1:Bcnm0ZwsGyWbCzImXv+pAJnYK9S473LQFuzCbDbfSFY=
-github.com/go-playground/universal-translator v0.18.1/go.mod h1:xekY+UJKNuX9WP91TpwSH2VMlDf28Uj24BCp08ZFTUY=
-github.com/go-playground/validator/v10 v10.14.1 h1:9c50NUPC30zyuKprjL3vNZ0m5oG+jU0zvx4AqHGnv4k=
-github.com/go-playground/validator/v10 v10.14.1/go.mod h1:9iXMNT7sEkjXb0I+enO7QXmzG6QCsPWY4zveKFVRSyU=
-github.com/go-resty/resty/v2 v2.7.0 h1:me+K9p3uhSmXtrBZ4k9jcEAfJmuC8IivWHwaLZwPrFY=
-github.com/go-resty/resty/v2 v2.7.0/go.mod h1:9PWDzw47qPphMRFfhsyk0NnSgvluHcljSMVIq3w7q0I=
 github.com/go-stack/stack v1.8.1 h1:ntEHSVwIt7PNXNpgPmVfMrNhLtgjlmnZha2kOpuRiDw=
 github.com/go-stack/stack v1.8.1/go.mod h1:dcoOX6HbPZSZptuspn9bctJ+N/CnF5gGygcUP3XYfe4=
-github.com/goccy/go-json v0.10.2 h1:CrxCmQqYDkv1z7lO7Wbh2HN93uovUHgrECaO5ZrCXAU=
-github.com/goccy/go-json v0.10.2/go.mod h1:6MelG93GURQebXPDq3khkgXZkazVtN9CRI+MGFi0w8I=
 github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
-github.com/golang/protobuf v1.3.5/go.mod h1:6O5/vntMXwX2lRkT1hjjk0nAC1IDOTvTlVgjlRvqsdk=
-github.com/golang/protobuf v1.5.0/go.mod h1:FsONVRAS9T7sI+LIUmWTfcYkHO4aIWwzhcaSAoJOfIk=
-github.com/golang/protobuf v1.5.2 h1:ROPKBNFfQgOUMifHyP+KYbvpjbdoFNs+aK7DXlji0Tw=
-github.com/golang/protobuf v1.5.2/go.mod h1:XVQd3VNwM+JqD3oG2Ue2ip4fOMUkwXdXDdiuN0vRsmY=
 github.com/golang/snappy v0.0.5-0.20220116011046-fa5810519dcb h1:PBC98N2aIaM3XXiurYmW7fx4GZkL8feAMVq7nEjURHk=
 github.com/golang/snappy v0.0.5-0.20220116011046-fa5810519dcb/go.mod h1:/XxbfmMg8lxefKM7IXC3fBNl/7bRcc72aCRzEWrmP2Q=
-github.com/google/go-cmp v0.5.5/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
-github.com/google/go-cmp v0.5.9 h1:O2Tfq5qg4qc4AmwVlvv0oLiVAGB7enBSJ2x2DqQFi38=
-github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=
 github.com/google/uuid v1.3.0 h1:t6JiXgmwXMjEs8VusXIJk2BXHsn+wx8BZdTaoZ5fu7I=
 github.com/google/uuid v1.3.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
 github.com/gopherjs/gopherjs v0.0.0-20181017120253-0766667cb4d1/go.mod h1:wJfORRmW1u3UXTncJ5qlYoELFm8eSnnEO6hX4iZ3EWY=
@@ -92,21 +59,17 @@ github.com/jinzhu/inflection v1.0.0/go.mod h1:h+uFLlag+Qp1Va5pdKtLDYj+kHp5pxUVkr
 github.com/jinzhu/now v1.1.5 h1:/o9tlHleP7gOFmsnYNz3RGnqzefHA47wQpKrrdTIwXQ=
 github.com/jinzhu/now v1.1.5/go.mod h1:d3SSVoowX0Lcu0IBviAWJpolVfI5UJVZZ7cO71lE/z8=
 github.com/jrick/logrotate v1.0.0/go.mod h1:LNinyqDIJnpAur+b8yyulnQw/wDuN1+BYKlTRt3OuAQ=
-github.com/json-iterator/go v1.1.12 h1:PV8peI4a0ysnczrg+LtxykD8LfKY9ML6u2jnxaEnrnM=
-github.com/json-iterator/go v1.1.12/go.mod h1:e30LSqwooZae/UwlEbR2852Gd8hjQvJoHmT4TnhNGBo=
 github.com/jtolds/gls v4.20.0+incompatible h1:xdiiI2gbIgH/gLH7ADydsJ1uDOEzR8yvV7C0MuV77Wo=
 github.com/jtolds/gls v4.20.0+incompatible/go.mod h1:QJZ7F/aHp+rZTRtaJ1ow/lLfFfVYBRgL+9YlvaHOwJU=
 github.com/kkdai/bstream v0.0.0-20161212061736-f391b8402d23/go.mod h1:J+Gs4SYgM6CZQHDETBtE9HaSEkGmuNXF86RwHhHUvq4=
-github.com/klauspost/cpuid/v2 v2.0.9/go.mod h1:FInQzS24/EEf25PyTYn52gqo7WaD8xa0213Md/qVLRg=
-github.com/klauspost/cpuid/v2 v2.2.5 h1:0E5MSMDEoAulmXNFquVs//DdoomxaoTY1kUhbc/qbZg=
-github.com/klauspost/cpuid/v2 v2.2.5/go.mod h1:Lcz8mBdAVJIBVzewtcLocK12l3Y+JytZYpaMropDUws=
+github.com/kr/pretty v0.2.1/go.mod h1:ipq/a2n7PKx3OHsz4KJII5eveXtPO4qwEXGdVfWzfnI=
 github.com/kr/pretty v0.3.1 h1:flRD4NNwYAUpkphVc1HcthR4KEIFJ65n8Mw5qdRn3LE=
 github.com/kr/pretty v0.3.1/go.mod h1:hoEshYVHaxMs3cyo3Yncou5ZscifuDolrwPKZanG3xk=
+github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
+github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
 github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
 github.com/kr/text v0.2.0/go.mod h1:eLer722TekiGuMkidMxC/pM04lWEeraHUUmBw8l2grE=
 github.com/leanovate/gopter v0.2.9 h1:fQjYxZaynp97ozCzfOyOuAGOU4aU/z37zf/tOujFk7c=
-github.com/leodido/go-urn v1.2.4 h1:XlAE/cm/ms7TE/VMVoduSpNBoyc2dOxHs5MZSwAN63Q=
-github.com/leodido/go-urn v1.2.4/go.mod h1:7ZrI8mTSeBSHl/UaRyKQW1qZeMgak41ANeCNaVckg+4=
 github.com/mattn/go-colorable v0.1.13 h1:fFA4WZxdEF4tXPZVKMLwD8oUnCTTo08duU7wxecdEvA=
 github.com/mattn/go-colorable v0.1.13/go.mod h1:7S9/ev0klgBDR4GtXTXX8a3vIGJpMovkB8vQcUbaXHg=
 github.com/mattn/go-isatty v0.0.16/go.mod h1:kYGgaQfpe5nmfYZH+SKPsOc2e4SrIfOl2e/yFXSvRLM=
@@ -114,36 +77,19 @@ github.com/mattn/go-isatty v0.0.19 h1:JITubQf0MOLdlGRuRq+jtsDlekdYPia9ZFsB8h/APP
 github.com/mattn/go-isatty v0.0.19/go.mod h1:W+V8PltTTMOvKvAeJH7IuucS94S2C6jfK/D7dTCTo3Y=
 github.com/mattn/go-runewidth v0.0.14 h1:+xnbZSEeDbOIg5/mE6JF0w6n9duR1l3/WmbinWVwUuU=
 github.com/mattn/go-runewidth v0.0.14/go.mod h1:Jdepj2loyihRzMpdS35Xk/zdY8IAYHsh153qUoGf23w=
-github.com/matttproud/golang_protobuf_extensions v1.0.4 h1:mmDVorXM7PCGKw94cs5zkfA9PSy5pEvNWRP0ET0TIVo=
-github.com/matttproud/golang_protobuf_extensions v1.0.4/go.mod h1:BSXmuO+STAnVfrANrmjBb36TMTDstsz7MSK+HVaYKv4=
 github.com/mitchellh/mapstructure v1.5.0 h1:jeMsZIYE/09sWLaz43PL7Gy6RuMjD2eJVyuac5Z2hdY=
 github.com/mitchellh/mapstructure v1.5.0/go.mod h1:bFUtVrKA4DC2yAKiSyO/QUcy7e+RRV2QTWOzhPopBRo=
 github.com/mitchellh/pointerstructure v1.2.0 h1:O+i9nHnXS3l/9Wu7r4NrEdwA2VFTicjUEN1uBnDo34A=
-github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q=
-github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd h1:TRLaZ9cD/w8PVh93nsPXa1VrQ6jlwL5oN8l14QlcNfg=
-github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q=
-github.com/modern-go/reflect2 v1.0.2 h1:xBagoLtFs94CBntxluKeaWgTMpvLxC4ur3nMaC9Gz0M=
-github.com/modern-go/reflect2 v1.0.2/go.mod h1:yWuevngMOJpCy52FWWMvUC8ws7m/LJsjYzDa0/r8luk=
 github.com/olekukonko/tablewriter v0.0.5 h1:P2Ga83D34wi1o9J6Wh1mRuqd4mF/x/lgBS7N7AbDhec=
 github.com/onsi/ginkgo v1.6.0/go.mod h1:lLunBs/Ym6LB5Z9jYTR76FiuTmxDTDusOGeTQH+WWjE=
 github.com/onsi/ginkgo v1.7.0/go.mod h1:lLunBs/Ym6LB5Z9jYTR76FiuTmxDTDusOGeTQH+WWjE=
 github.com/onsi/gomega v1.4.3/go.mod h1:ex+gbHU/CVuBBDIJjb2X0qEXbFg53c61hWP/1CpauHY=
 github.com/orcaman/concurrent-map/v2 v2.0.1 h1:jOJ5Pg2w1oeB6PeDurIYf6k9PQ+aTITr/6lP/L/zp6c=
 github.com/orcaman/concurrent-map/v2 v2.0.1/go.mod h1:9Eq3TG2oBe5FirmYWQfYO5iH1q0Jv47PLaNK++uCdOM=
-github.com/pelletier/go-toml/v2 v2.0.8 h1:0ctb6s9mE31h0/lhu+J6OPmVeDxJn+kYnJc2jZR9tGQ=
-github.com/pelletier/go-toml/v2 v2.0.8/go.mod h1:vuYfssBdrU2XDZ9bYydBu6t+6a6PYNcZljzZR9VXg+4=
 github.com/pkg/diff v0.0.0-20210226163009-20ebb0f2a09e/go.mod h1:pJLUxLENpZxwdsKMEsNbx1VGcRFpLqf3715MtcvvzbA=
 github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
-github.com/prometheus/client_golang v1.14.0 h1:nJdhIvne2eSX/XRAFV9PcvFFRbrjbcTUj0VP62TMhnw=
-github.com/prometheus/client_golang v1.14.0/go.mod h1:8vpkKitgIVNcqrRBWh1C4TIUQgYNtG/XQE4E/Zae36Y=
-github.com/prometheus/client_model v0.3.0 h1:UBgGFHqYdG/TPFD1B1ogZywDqEkwp3fBMvqdiQ7Xew4=
-github.com/prometheus/client_model v0.3.0/go.mod h1:LDGWKZIo7rky3hgvBe+caln+Dr3dPggB5dvjtD7w9+w=
-github.com/prometheus/common v0.39.0 h1:oOyhkDq05hPZKItWVBkJ6g6AtGxi+fy7F4JvUV8uhsI=
-github.com/prometheus/common v0.39.0/go.mod h1:6XBZ7lYdLCbkAVhwRsWTZn+IN5AB9F/NXd5w0BbEX0Y=
-github.com/prometheus/procfs v0.9.0 h1:wzCHvIvM5SxWqYvwgVL7yJY8Lz3PKn49KQtpgMYJfhI=
-github.com/prometheus/procfs v0.9.0/go.mod h1:+pB4zwohETzFnmlpe6yd2lSc+0/46IYZRB/chUwxUZY=
 github.com/prometheus/tsdb v0.7.1 h1:YZcsG11NqnK4czYLrWd9mpEuAJIHVQLwdrleYfszMAA=
 github.com/rivo/uniseg v0.2.0/go.mod h1:J6wj4VEh+S6ZtnVlnTBMWIodfgj8LQOQFoIToxlJtxc=
 github.com/rivo/uniseg v0.4.4 h1:8TfxU8dW6PdqD27gjM8MVNuicgxIjxpm4K7x4jp8sis=
@@ -156,8 +102,8 @@ github.com/rogpeppe/go-internal v1.10.0/go.mod h1:UQnix2H7Ngw/k4C5ijL5+65zddjncj
 github.com/rs/cors v1.7.0 h1:+88SsELBHx5r+hZ8TCkggzSstaWNbDvThkVK8H6f9ik=
 github.com/russross/blackfriday/v2 v2.1.0 h1:JIOH55/0cWyOuilr9/qlrm0BSXldqnqwMsf35Ld67mk=
 github.com/russross/blackfriday/v2 v2.1.0/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
-github.com/scroll-tech/go-ethereum v1.10.14-0.20230829000527-f883dcdc21fc h1:eK3NOpjgm/b2TQ6rYqWx92Zri0kBuxf6gKjjsVxWKr8=
-github.com/scroll-tech/go-ethereum v1.10.14-0.20230829000527-f883dcdc21fc/go.mod h1:DiN3p2inoXOxGffxSswDKqWjQ7bU+Mp0c9v0XQXKmaA=
+github.com/scroll-tech/go-ethereum v1.10.14-0.20230812030736-25fe3ba69a28 h1:CECBTWhZ5NGAn8lGFB4ooRAYxZns8PXoX8kTR/14c04=
+github.com/scroll-tech/go-ethereum v1.10.14-0.20230812030736-25fe3ba69a28/go.mod h1:DiN3p2inoXOxGffxSswDKqWjQ7bU+Mp0c9v0XQXKmaA=
 github.com/scroll-tech/zktrie v0.6.0 h1:xLrMAO31Yo2BiPg1jtYKzcjpEFnXy8acbB7iIsyshPs=
 github.com/scroll-tech/zktrie v0.6.0/go.mod h1:XvNo7vAk8yxNyTjBDj5WIiFzYW4bx/gJ78+NK6Zn6Uk=
 github.com/shirou/gopsutil v3.21.11+incompatible h1:+1+c1VGhc88SSonWP6foOcLhvnKlUeu/erjjvaPEYiI=
@@ -170,15 +116,6 @@ github.com/smartystreets/goconvey v1.8.0 h1:Oi49ha/2MURE0WexF052Z0m+BNSGirfjg5RL
 github.com/smartystreets/goconvey v1.8.0/go.mod h1:EdX8jtrTIj26jmjCOVNMVSIYAtgexqXKHOXW2Dx9JLg=
 github.com/status-im/keycard-go v0.2.0 h1:QDLFswOQu1r5jsycloeQh3bVU8n/NatHHaZobtDnDzA=
 github.com/status-im/keycard-go v0.2.0/go.mod h1:wlp8ZLbsmrF6g6WjugPAx+IzoLrkdf9+mHxBEeo3Hbg=
-github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
-github.com/stretchr/objx v0.4.0/go.mod h1:YvHI0jy2hoMjB+UWwv71VJQ9isScKT/TqJzVSSt89Yw=
-github.com/stretchr/objx v0.5.0/go.mod h1:Yh+to48EsGEfYuaHDzXPcE3xhTkx73EhmCGUpEOglKo=
-github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
-github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
-github.com/stretchr/testify v1.7.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
-github.com/stretchr/testify v1.8.0/go.mod h1:yNjHg4UonilssWZ8iaSj1OCr/vHnekPRkoO+kdMU+MU=
-github.com/stretchr/testify v1.8.1/go.mod h1:w2LPCIKwWwSfY2zedu0+kehJoqGctiVI29o6fzry7u4=
-github.com/stretchr/testify v1.8.2/go.mod h1:w2LPCIKwWwSfY2zedu0+kehJoqGctiVI29o6fzry7u4=
 github.com/stretchr/testify v1.8.3 h1:RP3t2pwF7cMEbC1dqtB6poj3niw/9gnV4Cjg5oW5gtY=
 github.com/stretchr/testify v1.8.3/go.mod h1:sz/lmYIOXD/1dqDmKjjqLyZ2RngseejIcXlSw2iwfAo=
 github.com/syndtr/goleveldb v1.0.1-0.20210819022825-2ae1ddf74ef7 h1:epCh84lMvA70Z7CTTCmYQn2CKbY8j86K7/FAIr141uY=
@@ -186,21 +123,14 @@ github.com/tklauser/go-sysconf v0.3.11 h1:89WgdJhk5SNwJfu+GKyYveZ4IaJ7xAkecBo+Kd
 github.com/tklauser/go-sysconf v0.3.11/go.mod h1:GqXfhXY3kiPa0nAXPDIQIWzJbMCB7AmcWpGR8lSZfqI=
 github.com/tklauser/numcpus v0.6.0 h1:kebhY2Qt+3U6RNK7UqpYNA+tJ23IBEGKkB7JQBfDYms=
 github.com/tklauser/numcpus v0.6.0/go.mod h1:FEZLMke0lhOUG6w2JadTzp0a+Nl8PF/GFkQ5UVIcaL4=
-github.com/twitchyliquid64/golang-asm v0.15.1 h1:SU5vSMR7hnwNxj24w34ZyCi/FmDZTkS4MhqMhdFk5YI=
-github.com/twitchyliquid64/golang-asm v0.15.1/go.mod h1:a1lVb/DtPvCB8fslRZhAngC2+aY1QWCk3Cedj/Gdt08=
 github.com/tyler-smith/go-bip39 v1.1.0 h1:5eUemwrMargf3BSLRRCalXT93Ns6pQJIjYQN2nyfOP8=
 github.com/tyler-smith/go-bip39 v1.1.0/go.mod h1:gUYDtqQw1JS3ZJ8UWVcGTGqqr6YIN3CWg+kkNaLt55U=
-github.com/ugorji/go/codec v1.2.11 h1:BMaWp1Bb6fHwEtbplGBGJ498wD+LKlNSl25MjdZY4dU=
-github.com/ugorji/go/codec v1.2.11/go.mod h1:UNopzCgEMSXjBc6AOMqYvWC1ktqTAfzJZUZgYf6w6lg=
 github.com/urfave/cli/v2 v2.25.7 h1:VAzn5oq403l5pHjc4OhD54+XGO9cdKVL/7lDjF+iKUs=
 github.com/urfave/cli/v2 v2.25.7/go.mod h1:8qnjx1vcq5s2/wpsqoZFndg2CE5tNFyrTvS6SinrnYQ=
 github.com/xrash/smetrics v0.0.0-20201216005158-039620a65673 h1:bAn7/zixMGCfxrRTfdpNzjtPYqr8smhKouy9mxVdGPU=
 github.com/xrash/smetrics v0.0.0-20201216005158-039620a65673/go.mod h1:N3UwUGtsrSj3ccvlPHLoLsHnpR27oXr4ZE984MbSER8=
 github.com/yusufpapurcu/wmi v1.2.2 h1:KBNDSne4vP5mbSWnJbO+51IMOXJB67QiYCSBrubbPRg=
 github.com/yusufpapurcu/wmi v1.2.2/go.mod h1:SBZ9tNy3G9/m5Oi98Zks0QjeHVDvuK0qfxQmPyzfmi0=
-golang.org/x/arch v0.0.0-20210923205945-b76863e36670/go.mod h1:5om86z9Hs0C8fWVUuoMHwpExlXzs5Tkyp9hOrfG7pp8=
-golang.org/x/arch v0.4.0 h1:A8WCeEWhLwPBKNbFi5Wv5UTCBx5zzubnXDlMOFAzFMc=
-golang.org/x/arch v0.4.0/go.mod h1:5om86z9Hs0C8fWVUuoMHwpExlXzs5Tkyp9hOrfG7pp8=
 golang.org/x/crypto v0.0.0-20170930174604-9419663f5a44/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
@@ -209,11 +139,7 @@ golang.org/x/crypto v0.12.0/go.mod h1:NF0Gs7EO5K4qLn+Ylc+fih8BSTeIjAP05siRnAh98y
 golang.org/x/net v0.0.0-20180906233101-161cd47e91fd/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
-golang.org/x/net v0.0.0-20211029224645-99673261e6eb/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
-golang.org/x/net v0.14.0 h1:BONx9s002vGdD9umnlX1Po8vOZmrgH34qlHcD1MfK14=
-golang.org/x/net v0.14.0/go.mod h1:PpSgVXXLK0OxS0F31C1/tv6XNguvCrnXIDrFMspZIUI=
 golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
-golang.org/x/sync v0.0.0-20181221193216-37e7f081c4d4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20210220032951-036812b2e83c/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.3.0 h1:ftCYgMx6zT/asHUrPw8BLLscYtGznsLAnjq5RH9P66E=
 golang.org/x/sync v0.3.0/go.mod h1:FU7BRWz2tNW+3quACPkgCx/L+uEAv1htQ0V83Z9Rj+Y=
@@ -221,39 +147,26 @@ golang.org/x/sys v0.0.0-20180909124046-d0be0721c37e/go.mod h1:STP8DvDyc/dI5b8T5h
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190916202348-b4ddaad3f8a3/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20210423082822-04245dca01da/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20220811171246-fbc7d0a398ab/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.2.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.5.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.11.0 h1:eG7RXZHdqOJ1i+0lgLgCpSXAp6M3LYlAo6osgSi0xOM=
 golang.org/x/sys v0.11.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
-golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.12.0 h1:k+n5B8goJNdU7hSvEtMUz3d1Q6D/XW4COJSJR6fN0mc=
-golang.org/x/text v0.12.0/go.mod h1:TvPlkZtksWOMsz7fbANvkp4WM8x/WCo/om8BMLbz+aE=
 golang.org/x/time v0.3.0 h1:rg5rLMjNzMS1RkNLzCG38eapWhnYLFYXDXj2gOlr8j4=
 golang.org/x/time v0.3.0/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
-golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 golang.org/x/tools v0.0.0-20190328211700-ab21143f2384/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
-golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
-google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp09yW+WbY/TyQbw=
-google.golang.org/protobuf v1.26.0/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
-google.golang.org/protobuf v1.31.0 h1:g0LDEJHgrBl9N9r17Ru3sqWhkIx2NB67okBHPwC7hs8=
-google.golang.org/protobuf v1.31.0/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqwMG9pJV4I=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c h1:Hei/4ADfdWqJk1ZMxUNpqntNwaWcugrBjAiHlqqRiVk=
+gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c/go.mod h1:JHkPIbrfpd72SG/EVd6muEfDQjcINNoR0C8j2r3qZ4Q=
 gopkg.in/fsnotify.v1 v1.4.7/go.mod h1:Tz8NjZHkW78fSQdbUxIjBTcgA1z1m8ZHf0WmKUhAMys=
 gopkg.in/natefinch/npipe.v2 v2.0.0-20160621034901-c1b8fa8bdcce h1:+JknDZhAj8YMt7GC73Ei8pv4MzjDUNPHgQWJdtMAaDU=
 gopkg.in/natefinch/npipe.v2 v2.0.0-20160621034901-c1b8fa8bdcce/go.mod h1:5AcXVHNjg+BDxry382+8OKon8SEWiKktQR07RKPsv1c=
 gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7/go.mod h1:dt/ZhP58zS4L8KSrWDmTeBkI65Dw0HsyUHuEVlX15mw=
 gopkg.in/urfave/cli.v1 v1.20.0 h1:NdAVW6RYxDif9DhDHaAortIu956m2c0v+09AZBPTbE0=
 gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
-gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gorm.io/gorm v1.25.2 h1:gs1o6Vsa+oVKG/a9ElL3XgyGfghFfkKA2SInQaCyMho=
 gorm.io/gorm v1.25.2/go.mod h1:L4uxeKpfBml98NYqVqwAdmV1a2nBtAec/cf3fpucW/k=
-rsc.io/pdf v0.1.1/go.mod h1:n8OzWcQ6Sp37PL01nO98y4iUCRdTGarVfzxY20ICaU4=

bridge/internal/config/config.go

@@ -2,7 +2,6 @@ package config
 
 import (
 	"encoding/json"
-	"fmt"
 	"os"
 	"path/filepath"
 
@@ -16,13 +15,6 @@ type Config struct {
 	DBConfig *database.Config `json:"db_config"`
 }
 
-func (c *Config) validate() error {
-	if maxChunkPerBatch := c.L2Config.BatchProposerConfig.MaxChunkNumPerBatch; maxChunkPerBatch <= 0 {
-		return fmt.Errorf("Invalid max_chunk_num_per_batch configuration: %v", maxChunkPerBatch)
-	}
-	return nil
-}
-
 // NewConfig returns a new instance of Config.
 func NewConfig(file string) (*Config, error) {
 	buf, err := os.ReadFile(filepath.Clean(file))
@@ -36,8 +28,5 @@ func NewConfig(file string) (*Config, error) {
 		return nil, err
 	}
 
-	if err := cfg.validate(); err != nil {
-		return nil, err
-	}
 	return cfg, nil
 }

bridge/internal/config/config_test.go

@@ -18,7 +18,7 @@ func TestConfig(t *testing.T) {
 		data, err := json.Marshal(cfg)
 		assert.NoError(t, err)
 
-		tmpJSON := fmt.Sprintf("/tmp/%d_rollup_config.json", time.Now().Nanosecond())
+		tmpJSON := fmt.Sprintf("/tmp/%d_bridge_config.json", time.Now().Nanosecond())
 		defer func() {
 			if _, err = os.Stat(tmpJSON); err == nil {
 				assert.NoError(t, os.Remove(tmpJSON))

bridge/internal/config/l1.go

@@ -13,6 +13,8 @@ type L1Config struct {
 	Endpoint string `json:"endpoint"`
 	// The start height to sync event from layer 1
 	StartHeight uint64 `json:"start_height"`
+	// The L1ScrollMessenger contract address deployed on layer 1 chain.
+	L1MessengerAddress common.Address `json:"l1_messenger_address"`
 	// The L1MessageQueue contract address deployed on layer 1 chain.
 	L1MessageQueueAddress common.Address `json:"l1_message_queue_address"`
 	// The ScrollChain contract address deployed on layer 1 chain.

bridge/internal/config/l2.go

@@ -28,9 +28,11 @@ type L2Config struct {
 
 // ChunkProposerConfig loads chunk_proposer configuration items.
 type ChunkProposerConfig struct {
-	MaxTxNumPerChunk                uint64  `json:"max_tx_num_per_chunk"`
+	MaxTxGasPerChunk                uint64  `json:"max_tx_gas_per_chunk"`
+	MaxL2TxNumPerChunk              uint64  `json:"max_l2_tx_num_per_chunk"`
 	MaxL1CommitGasPerChunk          uint64  `json:"max_l1_commit_gas_per_chunk"`
 	MaxL1CommitCalldataSizePerChunk uint64  `json:"max_l1_commit_calldata_size_per_chunk"`
+	MinL1CommitCalldataSizePerChunk uint64  `json:"min_l1_commit_calldata_size_per_chunk"`
 	ChunkTimeoutSec                 uint64  `json:"chunk_timeout_sec"`
 	MaxRowConsumptionPerChunk       uint64  `json:"max_row_consumption_per_chunk"`
 	GasCostIncreaseMultiplier       float64 `json:"gas_cost_increase_multiplier"`
@@ -41,6 +43,7 @@ type BatchProposerConfig struct {
 	MaxChunkNumPerBatch             uint64  `json:"max_chunk_num_per_batch"`
 	MaxL1CommitGasPerBatch          uint64  `json:"max_l1_commit_gas_per_batch"`
 	MaxL1CommitCalldataSizePerBatch uint32  `json:"max_l1_commit_calldata_size_per_batch"`
+	MinChunkNumPerBatch             uint64  `json:"min_chunk_num_per_batch"`
 	BatchTimeoutSec                 uint64  `json:"batch_timeout_sec"`
 	GasCostIncreaseMultiplier       float64 `json:"gas_cost_increase_multiplier"`
 }

bridge/internal/config/relayer.go

@@ -37,18 +37,13 @@ type SenderConfig struct {
 	PendingLimit int `json:"pending_limit"`
 }
 
-// ChainMonitor this config is used to get batch status from chain_monitor API.
-type ChainMonitor struct {
-	TimeOut  int    `json:"timeout"`
-	TryTimes int    `json:"try_times"`
-	BaseURL  string `json:"base_url"`
-}
-
 // RelayerConfig loads relayer configuration items.
 // What we need to pay attention to is that
 type RelayerConfig struct {
 	// RollupContractAddress store the rollup contract address.
 	RollupContractAddress common.Address `json:"rollup_contract_address,omitempty"`
+	// MessengerContractAddress store the scroll messenger contract address.
+	MessengerContractAddress common.Address `json:"messenger_contract_address"`
 	// GasPriceOracleContractAddress store the scroll messenger contract address.
 	GasPriceOracleContractAddress common.Address `json:"gas_price_oracle_contract_address"`
 	// sender config
@@ -59,11 +54,8 @@ type RelayerConfig struct {
 	FinalizeBatchIntervalSec uint64 `json:"finalize_batch_interval_sec"`
 	// MessageRelayMinGasLimit to avoid OutOfGas error
 	MessageRelayMinGasLimit uint64 `json:"message_relay_min_gas_limit,omitempty"`
-	// ChainMonitor config of monitoring service
-	ChainMonitor *ChainMonitor `json:"chain_monitor,omitempty"`
-	// GasCostIncreaseMultiplier multiplier for min gas limit estimation
-	GasCostIncreaseMultiplier float64 `json:"gas_cost_increase_multiplier,omitempty"`
 	// The private key of the relayer
+	MessageSenderPrivateKey   *ecdsa.PrivateKey `json:"-"`
 	GasOracleSenderPrivateKey *ecdsa.PrivateKey `json:"-"`
 	CommitSenderPrivateKey    *ecdsa.PrivateKey `json:"-"`
 	FinalizeSenderPrivateKey  *ecdsa.PrivateKey `json:"-"`
@@ -103,6 +95,7 @@ func convertAndCheck(key string, uniqueAddressesSet map[string]struct{}) (*ecdsa
 func (r *RelayerConfig) UnmarshalJSON(input []byte) error {
 	var privateKeysConfig struct {
 		relayerConfigAlias
+		MessageSenderPrivateKey   string `json:"message_sender_private_key"`
 		GasOracleSenderPrivateKey string `json:"gas_oracle_sender_private_key"`
 		CommitSenderPrivateKey    string `json:"commit_sender_private_key"`
 		FinalizeSenderPrivateKey  string `json:"finalize_sender_private_key"`
@@ -116,6 +109,11 @@ func (r *RelayerConfig) UnmarshalJSON(input []byte) error {
 
 	uniqueAddressesSet := make(map[string]struct{})
 
+	r.MessageSenderPrivateKey, err = convertAndCheck(privateKeysConfig.MessageSenderPrivateKey, uniqueAddressesSet)
+	if err != nil {
+		return fmt.Errorf("error converting and checking message sender private key: %w", err)
+	}
+
 	r.GasOracleSenderPrivateKey, err = convertAndCheck(privateKeysConfig.GasOracleSenderPrivateKey, uniqueAddressesSet)
 	if err != nil {
 		return fmt.Errorf("error converting and checking gas oracle sender private key: %w", err)
@@ -139,12 +137,14 @@ func (r *RelayerConfig) MarshalJSON() ([]byte, error) {
 	privateKeysConfig := struct {
 		relayerConfigAlias
 		// The private key of the relayer
+		MessageSenderPrivateKey   string `json:"message_sender_private_key"`
 		GasOracleSenderPrivateKey string `json:"gas_oracle_sender_private_key"`
 		CommitSenderPrivateKey    string `json:"commit_sender_private_key"`
 		FinalizeSenderPrivateKey  string `json:"finalize_sender_private_key"`
 	}{}
 
 	privateKeysConfig.relayerConfigAlias = relayerConfigAlias(*r)
+	privateKeysConfig.MessageSenderPrivateKey = common.Bytes2Hex(crypto.FromECDSA(r.MessageSenderPrivateKey))
 	privateKeysConfig.GasOracleSenderPrivateKey = common.Bytes2Hex(crypto.FromECDSA(r.GasOracleSenderPrivateKey))
 	privateKeysConfig.CommitSenderPrivateKey = common.Bytes2Hex(crypto.FromECDSA(r.CommitSenderPrivateKey))
 	privateKeysConfig.FinalizeSenderPrivateKey = common.Bytes2Hex(crypto.FromECDSA(r.FinalizeSenderPrivateKey))

bridge/internal/controller/relayer/common.go

@@ -6,6 +6,10 @@ const (
 	gasPriceDiffPrecision = 1000000
 
 	defaultGasPriceDiff = 50000 // 5%
+
+	defaultL1MessageRelayMinGasLimit = 130000 // should be enough for both ERC20 and ETH relay
+
+	defaultL2MessageRelayMinGasLimit = 200000
 )
 
 var (

bridge/internal/controller/relayer/l1_relayer.go

@@ -6,18 +6,26 @@ import (
 	"fmt"
 	"math/big"
 
-	"github.com/prometheus/client_golang/prometheus"
+	// not sure if this will make problems when relay with l1geth
 	"github.com/scroll-tech/go-ethereum/accounts/abi"
+	"github.com/scroll-tech/go-ethereum/common"
 	"github.com/scroll-tech/go-ethereum/crypto"
 	"github.com/scroll-tech/go-ethereum/log"
+	gethMetrics "github.com/scroll-tech/go-ethereum/metrics"
 	"gorm.io/gorm"
 
+	"scroll-tech/common/metrics"
 	"scroll-tech/common/types"
 
-	bridgeAbi "scroll-tech/rollup/abi"
-	"scroll-tech/rollup/internal/config"
-	"scroll-tech/rollup/internal/controller/sender"
-	"scroll-tech/rollup/internal/orm"
+	bridgeAbi "scroll-tech/bridge/abi"
+	"scroll-tech/bridge/internal/config"
+	"scroll-tech/bridge/internal/controller/sender"
+	"scroll-tech/bridge/internal/orm"
+)
+
+var (
+	bridgeL1MsgsRelayedTotalCounter          = gethMetrics.NewRegisteredCounter("bridge/l1/msgs/relayed/total", metrics.ScrollRegistry)
+	bridgeL1MsgsRelayedConfirmedTotalCounter = gethMetrics.NewRegisteredCounter("bridge/l1/msgs/relayed/confirmed/total", metrics.ScrollRegistry)
 )
 
 // Layer1Relayer is responsible for
@@ -31,20 +39,32 @@ type Layer1Relayer struct {
 
 	cfg *config.RelayerConfig
 
+	// channel used to communicate with transaction sender
+	messageSender  *sender.Sender
+	l2MessengerABI *abi.ABI
+
 	gasOracleSender *sender.Sender
 	l1GasOracleABI  *abi.ABI
 
+	minGasLimitForMessageRelay uint64
+
 	lastGasPrice uint64
 	minGasPrice  uint64
 	gasPriceDiff uint64
 
-	l1BlockOrm *orm.L1Block
-	metrics    *l1RelayerMetrics
+	l1MessageOrm *orm.L1Message
+	l1BlockOrm   *orm.L1Block
 }
 
 // NewLayer1Relayer will return a new instance of Layer1RelayerClient
-func NewLayer1Relayer(ctx context.Context, db *gorm.DB, cfg *config.RelayerConfig, reg prometheus.Registerer) (*Layer1Relayer, error) {
-	gasOracleSender, err := sender.NewSender(ctx, cfg.SenderConfig, cfg.GasOracleSenderPrivateKey, "l1_relayer", "gas_oracle_sender", reg)
+func NewLayer1Relayer(ctx context.Context, db *gorm.DB, cfg *config.RelayerConfig) (*Layer1Relayer, error) {
+	messageSender, err := sender.NewSender(ctx, cfg.SenderConfig, cfg.MessageSenderPrivateKey)
+	if err != nil {
+		addr := crypto.PubkeyToAddress(cfg.MessageSenderPrivateKey.PublicKey)
+		return nil, fmt.Errorf("new message sender failed for address %s, err: %v", addr.Hex(), err)
+	}
+
+	gasOracleSender, err := sender.NewSender(ctx, cfg.SenderConfig, cfg.GasOracleSenderPrivateKey)
 	if err != nil {
 		addr := crypto.PubkeyToAddress(cfg.GasOracleSenderPrivateKey.PublicKey)
 		return nil, fmt.Errorf("new gas oracle sender failed for address %s, err: %v", addr.Hex(), err)
@@ -60,27 +80,83 @@ func NewLayer1Relayer(ctx context.Context, db *gorm.DB, cfg *config.RelayerConfi
 		gasPriceDiff = defaultGasPriceDiff
 	}
 
+	minGasLimitForMessageRelay := uint64(defaultL1MessageRelayMinGasLimit)
+	if cfg.MessageRelayMinGasLimit != 0 {
+		minGasLimitForMessageRelay = cfg.MessageRelayMinGasLimit
+	}
+
 	l1Relayer := &Layer1Relayer{
-		cfg:        cfg,
-		ctx:        ctx,
-		l1BlockOrm: orm.NewL1Block(db),
+		ctx:          ctx,
+		l1MessageOrm: orm.NewL1Message(db),
+		l1BlockOrm:   orm.NewL1Block(db),
+
+		messageSender:  messageSender,
+		l2MessengerABI: bridgeAbi.L2ScrollMessengerABI,
 
 		gasOracleSender: gasOracleSender,
 		l1GasOracleABI:  bridgeAbi.L1GasPriceOracleABI,
 
+		minGasLimitForMessageRelay: minGasLimitForMessageRelay,
+
 		minGasPrice:  minGasPrice,
 		gasPriceDiff: gasPriceDiff,
-	}
 
-	l1Relayer.metrics = initL1RelayerMetrics(reg)
+		cfg: cfg,
+	}
 
 	go l1Relayer.handleConfirmLoop(ctx)
 	return l1Relayer, nil
 }
 
+// ProcessSavedEvents relays saved un-processed cross-domain transactions to desired blockchain
+func (r *Layer1Relayer) ProcessSavedEvents() {
+	// msgs are sorted by nonce in increasing order
+	msgs, err := r.l1MessageOrm.GetL1MessagesByStatus(types.MsgPending, 100)
+	if err != nil {
+		log.Error("Failed to fetch unprocessed L1 messages", "err", err)
+		return
+	}
+
+	if len(msgs) > 0 {
+		log.Info("Processing L1 messages", "count", len(msgs))
+	}
+
+	for _, msg := range msgs {
+		tmpMsg := msg
+		if err = r.processSavedEvent(&tmpMsg); err != nil {
+			if !errors.Is(err, sender.ErrNoAvailableAccount) && !errors.Is(err, sender.ErrFullPending) {
+				log.Error("failed to process event", "msg.msgHash", msg.MsgHash, "err", err)
+			}
+			return
+		}
+	}
+}
+
+func (r *Layer1Relayer) processSavedEvent(msg *orm.L1Message) error {
+	calldata := common.Hex2Bytes(msg.Calldata)
+	hash, err := r.messageSender.SendTransaction(msg.MsgHash, &r.cfg.MessengerContractAddress, big.NewInt(0), calldata, r.minGasLimitForMessageRelay)
+	if err != nil && errors.Is(err, ErrExecutionRevertedMessageExpired) {
+		return r.l1MessageOrm.UpdateLayer1Status(r.ctx, msg.MsgHash, types.MsgExpired)
+	}
+
+	if err != nil && errors.Is(err, ErrExecutionRevertedAlreadySuccessExecuted) {
+		return r.l1MessageOrm.UpdateLayer1Status(r.ctx, msg.MsgHash, types.MsgConfirmed)
+	}
+	if err != nil {
+		return err
+	}
+	bridgeL1MsgsRelayedTotalCounter.Inc(1)
+	log.Info("relayMessage to layer2", "msg hash", msg.MsgHash, "tx hash", hash)
+
+	err = r.l1MessageOrm.UpdateLayer1StatusAndLayer2Hash(r.ctx, msg.MsgHash, types.MsgSubmitted, hash.String())
+	if err != nil {
+		log.Error("UpdateLayer1StatusAndLayer2Hash failed", "msg.msgHash", msg.MsgHash, "msg.height", msg.Height, "err", err)
+	}
+	return err
+}
+
 // ProcessGasPriceOracle imports gas price to layer2
 func (r *Layer1Relayer) ProcessGasPriceOracle() {
-	r.metrics.rollupL1RelayerGasPriceOraclerRunTotal.Inc()
 	latestBlockHeight, err := r.l1BlockOrm.GetLatestL1BlockHeight(r.ctx)
 	if err != nil {
 		log.Warn("Failed to fetch latest L1 block height from db", "err", err)
@@ -125,7 +201,6 @@ func (r *Layer1Relayer) ProcessGasPriceOracle() {
 				return
 			}
 			r.lastGasPrice = block.BaseFee
-			r.metrics.rollupL1RelayerLastGasPrice.Set(float64(r.lastGasPrice))
 			log.Info("Update l1 base fee", "txHash", hash.String(), "baseFee", baseFee)
 		}
 	}
@@ -136,8 +211,23 @@ func (r *Layer1Relayer) handleConfirmLoop(ctx context.Context) {
 		select {
 		case <-ctx.Done():
 			return
+		case cfm := <-r.messageSender.ConfirmChan():
+			bridgeL1MsgsRelayedConfirmedTotalCounter.Inc(1)
+			if !cfm.IsSuccessful {
+				err := r.l1MessageOrm.UpdateLayer1StatusAndLayer2Hash(r.ctx, cfm.ID, types.MsgRelayFailed, cfm.TxHash.String())
+				if err != nil {
+					log.Warn("UpdateLayer1StatusAndLayer2Hash failed", "err", err)
+				}
+				log.Warn("transaction confirmed but failed in layer2", "confirmation", cfm)
+			} else {
+				// @todo handle db error
+				err := r.l1MessageOrm.UpdateLayer1StatusAndLayer2Hash(r.ctx, cfm.ID, types.MsgConfirmed, cfm.TxHash.String())
+				if err != nil {
+					log.Warn("UpdateLayer1StatusAndLayer2Hash failed", "err", err)
+				}
+				log.Info("transaction confirmed in layer2", "confirmation", cfm)
+			}
 		case cfm := <-r.gasOracleSender.ConfirmChan():
-			r.metrics.rollupL1GasOraclerConfirmedTotal.Inc()
 			if !cfm.IsSuccessful {
 				// @discuss: maybe make it pending again?
 				err := r.l1BlockOrm.UpdateL1GasOracleStatusAndOracleTxHash(r.ctx, cfm.ID, types.GasOracleFailed, cfm.TxHash.String())

bridge/internal/controller/relayer/l1_relayer_test.go

@@ -18,8 +18,35 @@ import (
 
 	"scroll-tech/database/migrate"
 
-	"scroll-tech/rollup/internal/controller/sender"
-	"scroll-tech/rollup/internal/orm"
+	"scroll-tech/bridge/internal/controller/sender"
+	"scroll-tech/bridge/internal/orm"
+)
+
+var (
+	templateL1Message = []*orm.L1Message{
+		{
+			QueueIndex: 1,
+			MsgHash:    "msg_hash1",
+			Height:     1,
+			Sender:     "0x596a746661dbed76a84556111c2872249b070e15",
+			Value:      "0x19ece",
+			GasLimit:   11529940,
+			Target:     "0x2c73620b223808297ea734d946813f0dd78eb8f7",
+			Calldata:   "testdata",
+			Layer1Hash: "hash0",
+		},
+		{
+			QueueIndex: 2,
+			MsgHash:    "msg_hash2",
+			Height:     2,
+			Sender:     "0x596a746661dbed76a84556111c2872249b070e15",
+			Value:      "0x19ece",
+			GasLimit:   11529940,
+			Target:     "0x2c73620b223808297ea734d946813f0dd78eb8f7",
+			Calldata:   "testdata",
+			Layer1Hash: "hash1",
+		},
+	}
 )
 
 func setupL1RelayerDB(t *testing.T) *gorm.DB {
@@ -35,11 +62,66 @@ func setupL1RelayerDB(t *testing.T) *gorm.DB {
 func testCreateNewL1Relayer(t *testing.T) {
 	db := setupL1RelayerDB(t)
 	defer database.CloseDB(db)
-	relayer, err := NewLayer1Relayer(context.Background(), db, cfg.L2Config.RelayerConfig, nil)
+	relayer, err := NewLayer1Relayer(context.Background(), db, cfg.L2Config.RelayerConfig)
 	assert.NoError(t, err)
 	assert.NotNil(t, relayer)
 }
 
+func testL1RelayerProcessSaveEvents(t *testing.T) {
+	db := setupL1RelayerDB(t)
+	defer database.CloseDB(db)
+	l1MessageOrm := orm.NewL1Message(db)
+	l1Cfg := cfg.L1Config
+	relayer, err := NewLayer1Relayer(context.Background(), db, l1Cfg.RelayerConfig)
+	assert.NoError(t, err)
+	assert.NotNil(t, relayer)
+	assert.NoError(t, l1MessageOrm.SaveL1Messages(context.Background(), templateL1Message))
+	relayer.ProcessSavedEvents()
+	msg1, err := l1MessageOrm.GetL1MessageByQueueIndex(1)
+	assert.NoError(t, err)
+	assert.Equal(t, types.MsgStatus(msg1.Status), types.MsgSubmitted)
+	msg2, err := l1MessageOrm.GetL1MessageByQueueIndex(2)
+	assert.NoError(t, err)
+	assert.Equal(t, types.MsgStatus(msg2.Status), types.MsgSubmitted)
+}
+
+func testL1RelayerMsgConfirm(t *testing.T) {
+	db := setupL1RelayerDB(t)
+	defer database.CloseDB(db)
+	l1MessageOrm := orm.NewL1Message(db)
+	l1Messages := []*orm.L1Message{
+		{MsgHash: "msg-1", QueueIndex: 0},
+		{MsgHash: "msg-2", QueueIndex: 1},
+	}
+	err := l1MessageOrm.SaveL1Messages(context.Background(), l1Messages)
+	assert.NoError(t, err)
+	// Create and set up the Layer1 Relayer.
+	l1Cfg := cfg.L1Config
+	ctx, cancel := context.WithCancel(context.Background())
+	defer cancel()
+	l1Relayer, err := NewLayer1Relayer(ctx, db, l1Cfg.RelayerConfig)
+	assert.NoError(t, err)
+
+	// Simulate message confirmations.
+	l1Relayer.messageSender.SendConfirmation(&sender.Confirmation{
+		ID:           "msg-1",
+		IsSuccessful: true,
+	})
+	l1Relayer.messageSender.SendConfirmation(&sender.Confirmation{
+		ID:           "msg-2",
+		IsSuccessful: false,
+	})
+
+	// Check the database for the updated status using TryTimes.
+	ok := utils.TryTimes(5, func() bool {
+		msg1, err1 := l1MessageOrm.GetL1MessageByMsgHash("msg-1")
+		msg2, err2 := l1MessageOrm.GetL1MessageByMsgHash("msg-2")
+		return err1 == nil && types.MsgStatus(msg1.Status) == types.MsgConfirmed &&
+			err2 == nil && types.MsgStatus(msg2.Status) == types.MsgRelayFailed
+	})
+	assert.True(t, ok)
+}
+
 func testL1RelayerGasOracleConfirm(t *testing.T) {
 	db := setupL1RelayerDB(t)
 	defer database.CloseDB(db)
@@ -56,7 +138,7 @@ func testL1RelayerGasOracleConfirm(t *testing.T) {
 	l1Cfg := cfg.L1Config
 	ctx, cancel := context.WithCancel(context.Background())
 	defer cancel()
-	l1Relayer, err := NewLayer1Relayer(ctx, db, l1Cfg.RelayerConfig, nil)
+	l1Relayer, err := NewLayer1Relayer(ctx, db, l1Cfg.RelayerConfig)
 	assert.NoError(t, err)
 
 	// Simulate message confirmations.
@@ -86,7 +168,7 @@ func testL1RelayerProcessGasPriceOracle(t *testing.T) {
 	l1Cfg := cfg.L1Config
 	ctx, cancel := context.WithCancel(context.Background())
 	defer cancel()
-	l1Relayer, err := NewLayer1Relayer(ctx, db, l1Cfg.RelayerConfig, nil)
+	l1Relayer, err := NewLayer1Relayer(ctx, db, l1Cfg.RelayerConfig)
 	assert.NoError(t, err)
 	assert.NotNil(t, l1Relayer)
 

bridge/internal/controller/relayer/l2_relayer.go

@@ -8,22 +8,29 @@ import (
 	"sync"
 	"time"
 
-	"github.com/go-resty/resty/v2"
-	"github.com/prometheus/client_golang/prometheus"
 	"github.com/scroll-tech/go-ethereum/accounts/abi"
 	"github.com/scroll-tech/go-ethereum/common"
 	gethTypes "github.com/scroll-tech/go-ethereum/core/types"
 	"github.com/scroll-tech/go-ethereum/crypto"
 	"github.com/scroll-tech/go-ethereum/ethclient"
 	"github.com/scroll-tech/go-ethereum/log"
+	gethMetrics "github.com/scroll-tech/go-ethereum/metrics"
 	"gorm.io/gorm"
 
+	"scroll-tech/common/metrics"
 	"scroll-tech/common/types"
 
-	bridgeAbi "scroll-tech/rollup/abi"
-	"scroll-tech/rollup/internal/config"
-	"scroll-tech/rollup/internal/controller/sender"
-	"scroll-tech/rollup/internal/orm"
+	bridgeAbi "scroll-tech/bridge/abi"
+	"scroll-tech/bridge/internal/config"
+	"scroll-tech/bridge/internal/controller/sender"
+	"scroll-tech/bridge/internal/orm"
+)
+
+var (
+	bridgeL2BatchesFinalizedTotalCounter          = gethMetrics.NewRegisteredCounter("bridge/l2/batches/finalized/total", metrics.ScrollRegistry)
+	bridgeL2BatchesCommittedTotalCounter          = gethMetrics.NewRegisteredCounter("bridge/l2/batches/committed/total", metrics.ScrollRegistry)
+	bridgeL2BatchesFinalizedConfirmedTotalCounter = gethMetrics.NewRegisteredCounter("bridge/l2/batches/finalized/confirmed/total", metrics.ScrollRegistry)
+	bridgeL2BatchesCommittedConfirmedTotalCounter = gethMetrics.NewRegisteredCounter("bridge/l2/batches/committed/confirmed/total", metrics.ScrollRegistry)
 )
 
 // Layer2Relayer is responsible for
@@ -44,6 +51,9 @@ type Layer2Relayer struct {
 
 	cfg *config.RelayerConfig
 
+	messageSender  *sender.Sender
+	l1MessengerABI *abi.ABI
+
 	commitSender   *sender.Sender
 	finalizeSender *sender.Sender
 	l1RollupABI    *abi.ABI
@@ -51,13 +61,12 @@ type Layer2Relayer struct {
 	gasOracleSender *sender.Sender
 	l2GasOracleABI  *abi.ABI
 
+	minGasLimitForMessageRelay uint64
+
 	lastGasPrice uint64
 	minGasPrice  uint64
 	gasPriceDiff uint64
 
-	// Used to get batch status from chain_monitor api.
-	chainMonitorClient *resty.Client
-
 	// A list of processing message.
 	// key(string): confirmation ID, value(string): layer2 hash.
 	processingMessage sync.Map
@@ -69,24 +78,29 @@ type Layer2Relayer struct {
 	// A list of processing batch finalization.
 	// key(string): confirmation ID, value(string): batch hash.
 	processingFinalization sync.Map
-
-	metrics *l2RelayerMetrics
 }
 
 // NewLayer2Relayer will return a new instance of Layer2RelayerClient
-func NewLayer2Relayer(ctx context.Context, l2Client *ethclient.Client, db *gorm.DB, cfg *config.RelayerConfig, initGenesis bool, reg prometheus.Registerer) (*Layer2Relayer, error) {
-	commitSender, err := sender.NewSender(ctx, cfg.SenderConfig, cfg.CommitSenderPrivateKey, "l2_relayer", "commit_sender", reg)
+func NewLayer2Relayer(ctx context.Context, l2Client *ethclient.Client, db *gorm.DB, cfg *config.RelayerConfig, initGenesis bool) (*Layer2Relayer, error) {
+	messageSender, err := sender.NewSender(ctx, cfg.SenderConfig, cfg.MessageSenderPrivateKey)
+	if err != nil {
+		addr := crypto.PubkeyToAddress(cfg.MessageSenderPrivateKey.PublicKey)
+		return nil, fmt.Errorf("new message sender failed for address %s, err: %w", addr.Hex(), err)
+	}
+
+	commitSender, err := sender.NewSender(ctx, cfg.SenderConfig, cfg.CommitSenderPrivateKey)
 	if err != nil {
 		addr := crypto.PubkeyToAddress(cfg.CommitSenderPrivateKey.PublicKey)
 		return nil, fmt.Errorf("new commit sender failed for address %s, err: %w", addr.Hex(), err)
 	}
-	finalizeSender, err := sender.NewSender(ctx, cfg.SenderConfig, cfg.FinalizeSenderPrivateKey, "l2_relayer", "finalize_sender", reg)
+
+	finalizeSender, err := sender.NewSender(ctx, cfg.SenderConfig, cfg.FinalizeSenderPrivateKey)
 	if err != nil {
 		addr := crypto.PubkeyToAddress(cfg.FinalizeSenderPrivateKey.PublicKey)
 		return nil, fmt.Errorf("new finalize sender failed for address %s, err: %w", addr.Hex(), err)
 	}
 
-	gasOracleSender, err := sender.NewSender(ctx, cfg.SenderConfig, cfg.GasOracleSenderPrivateKey, "l2_relayer", "gas_oracle_sender", reg)
+	gasOracleSender, err := sender.NewSender(ctx, cfg.SenderConfig, cfg.GasOracleSenderPrivateKey)
 	if err != nil {
 		addr := crypto.PubkeyToAddress(cfg.GasOracleSenderPrivateKey.PublicKey)
 		return nil, fmt.Errorf("new gas oracle sender failed for address %s, err: %w", addr.Hex(), err)
@@ -102,10 +116,10 @@ func NewLayer2Relayer(ctx context.Context, l2Client *ethclient.Client, db *gorm.
 		gasPriceDiff = defaultGasPriceDiff
 	}
 
-	// chain_monitor client
-	chainMonitorClient := resty.New()
-	chainMonitorClient.SetRetryCount(cfg.ChainMonitor.TryTimes)
-	chainMonitorClient.SetTimeout(time.Duration(cfg.ChainMonitor.TimeOut) * time.Second)
+	minGasLimitForMessageRelay := uint64(defaultL2MessageRelayMinGasLimit)
+	if cfg.MessageRelayMinGasLimit != 0 {
+		minGasLimitForMessageRelay = cfg.MessageRelayMinGasLimit
+	}
 
 	layer2Relayer := &Layer2Relayer{
 		ctx: ctx,
@@ -117,6 +131,9 @@ func NewLayer2Relayer(ctx context.Context, l2Client *ethclient.Client, db *gorm.
 
 		l2Client: l2Client,
 
+		messageSender:  messageSender,
+		l1MessengerABI: bridgeAbi.L1ScrollMessengerABI,
+
 		commitSender:   commitSender,
 		finalizeSender: finalizeSender,
 		l1RollupABI:    bridgeAbi.ScrollChainABI,
@@ -124,6 +141,8 @@ func NewLayer2Relayer(ctx context.Context, l2Client *ethclient.Client, db *gorm.
 		gasOracleSender: gasOracleSender,
 		l2GasOracleABI:  bridgeAbi.L2GasPriceOracleABI,
 
+		minGasLimitForMessageRelay: minGasLimitForMessageRelay,
+
 		minGasPrice:  minGasPrice,
 		gasPriceDiff: gasPriceDiff,
 
@@ -131,7 +150,6 @@ func NewLayer2Relayer(ctx context.Context, l2Client *ethclient.Client, db *gorm.
 		processingMessage:      sync.Map{},
 		processingCommitment:   sync.Map{},
 		processingFinalization: sync.Map{},
-		chainMonitorClient:     chainMonitorClient,
 	}
 
 	// Initialize genesis before we do anything else
@@ -140,7 +158,6 @@ func NewLayer2Relayer(ctx context.Context, l2Client *ethclient.Client, db *gorm.
 			return nil, fmt.Errorf("failed to initialize and commit genesis batch, err: %v", err)
 		}
 	}
-	layer2Relayer.metrics = initL2RelayerMetrics(reg)
 
 	go layer2Relayer.handleConfirmLoop(ctx)
 	return layer2Relayer, nil
@@ -181,14 +198,8 @@ func (r *Layer2Relayer) initializeGenesis() error {
 			return fmt.Errorf("failed to update genesis chunk proving status: %v", err)
 		}
 
-		batchMeta := &types.BatchMeta{
-			StartChunkIndex: 0,
-			StartChunkHash:  dbChunk.Hash,
-			EndChunkIndex:   0,
-			EndChunkHash:    dbChunk.Hash,
-		}
 		var batch *orm.Batch
-		batch, err = r.batchOrm.InsertBatch(r.ctx, []*types.Chunk{chunk}, batchMeta, dbTX)
+		batch, err = r.batchOrm.InsertBatch(r.ctx, 0, 0, dbChunk.Hash, dbChunk.Hash, []*types.Chunk{chunk}, dbTX)
 		if err != nil {
 			return fmt.Errorf("failed to insert batch: %v", err)
 		}
@@ -264,7 +275,6 @@ func (r *Layer2Relayer) commitGenesisBatch(batchHash string, batchHeader []byte,
 
 // ProcessGasPriceOracle imports gas price to layer1
 func (r *Layer2Relayer) ProcessGasPriceOracle() {
-	r.metrics.rollupL2RelayerGasPriceOraclerRunTotal.Inc()
 	batch, err := r.batchOrm.GetLatestBatch(r.ctx)
 	if batch == nil || err != nil {
 		log.Error("Failed to GetLatestBatch", "batch", batch, "err", err)
@@ -302,7 +312,6 @@ func (r *Layer2Relayer) ProcessGasPriceOracle() {
 				return
 			}
 			r.lastGasPrice = suggestGasPriceUint64
-			r.metrics.rollupL2RelayerLastGasPrice.Set(float64(r.lastGasPrice))
 			log.Info("Update l2 gas price", "txHash", hash.String(), "GasPrice", suggestGasPrice)
 		}
 	}
@@ -311,13 +320,12 @@ func (r *Layer2Relayer) ProcessGasPriceOracle() {
 // ProcessPendingBatches processes the pending batches by sending commitBatch transactions to layer 1.
 func (r *Layer2Relayer) ProcessPendingBatches() {
 	// get pending batches from database in ascending order by their index.
-	pendingBatches, err := r.batchOrm.GetPendingBatches(r.ctx, 5)
+	pendingBatches, err := r.batchOrm.GetPendingBatches(r.ctx, 10)
 	if err != nil {
 		log.Error("Failed to fetch pending L2 batches", "err", err)
 		return
 	}
 	for _, batch := range pendingBatches {
-		r.metrics.rollupL2RelayerProcessPendingBatchTotal.Inc()
 		// get current header and parent header.
 		currentBatchHeader, err := types.DecodeBatchHeader(batch.BatchHeader)
 		if err != nil {
@@ -374,17 +382,9 @@ func (r *Layer2Relayer) ProcessPendingBatches() {
 
 		// send transaction
 		txID := batch.Hash + "-commit"
-		minGasLimit := uint64(float64(batch.TotalL1CommitGas) * r.cfg.GasCostIncreaseMultiplier)
-		txHash, err := r.commitSender.SendTransaction(txID, &r.cfg.RollupContractAddress, big.NewInt(0), calldata, minGasLimit)
+		txHash, err := r.commitSender.SendTransaction(txID, &r.cfg.RollupContractAddress, big.NewInt(0), calldata, 0)
 		if err != nil {
 			log.Error(
-				"Failed to send commitBatch tx to layer1",
-				"index", batch.Index,
-				"hash", batch.Hash,
-				"RollupContractAddress", r.cfg.RollupContractAddress,
-				"err", err,
-			)
-			log.Debug(
 				"Failed to send commitBatch tx to layer1",
 				"index", batch.Index,
 				"hash", batch.Hash,
@@ -400,7 +400,7 @@ func (r *Layer2Relayer) ProcessPendingBatches() {
 			log.Error("UpdateCommitTxHashAndRollupStatus failed", "hash", batch.Hash, "index", batch.Index, "err", err)
 			return
 		}
-		r.metrics.rollupL2RelayerProcessPendingBatchSuccessTotal.Inc()
+		bridgeL2BatchesCommittedTotalCounter.Inc(1)
 		r.processingCommitment.Store(txID, batch.Hash)
 		log.Info("Sent the commitBatch tx to layer1", "batch index", batch.Index, "batch hash", batch.Hash, "tx hash", txHash.Hex())
 	}
@@ -424,8 +424,6 @@ func (r *Layer2Relayer) ProcessCommittedBatches() {
 		return
 	}
 
-	r.metrics.rollupL2RelayerProcessCommittedBatchesTotal.Inc()
-
 	batch := batches[0]
 	hash := batch.Hash
 	status := types.ProvingStatus(batch.ProvingStatus)
@@ -433,22 +431,12 @@ func (r *Layer2Relayer) ProcessCommittedBatches() {
 	case types.ProvingTaskUnassigned, types.ProvingTaskAssigned:
 		// The proof for this block is not ready yet.
 		return
+	case types.ProvingTaskProved:
+		// It's an intermediate state. The prover manager received the proof but has not verified
+		// the proof yet. We don't roll up the proof until it's verified.
+		return
 	case types.ProvingTaskVerified:
 		log.Info("Start to roll up zk proof", "hash", hash)
-		r.metrics.rollupL2RelayerProcessCommittedBatchesFinalizedTotal.Inc()
-
-		// Check batch status before send `finalizeBatchWithProof` tx.
-		//batchStatus, err := r.getBatchStatusByIndex(batch.Index)
-		//if err != nil {
-		//	r.metrics.rollupL2ChainMonitorLatestFailedCall.Inc()
-		//	log.Warn("failed to get batch status, please check chain_monitor api server", "batch_index", batch.Index, "err", err)
-		//	return
-		//}
-		//if !batchStatus {
-		//	r.metrics.rollupL2ChainMonitorLatestFailedBatchStatus.Inc()
-		//	log.Error("the batch status is not right, stop finalize batch and check the reason", "batch_index", batch.Index)
-		//	return
-		//}
 
 		var parentBatchStateRoot string
 		if batch.Index > 0 {
@@ -497,13 +485,6 @@ func (r *Layer2Relayer) ProcessCommittedBatches() {
 				// the client does not see the 1st tx's updates at this point.
 				// TODO: add more fine-grained error handling
 				log.Error(
-					"finalizeBatchWithProof in layer1 failed",
-					"index", batch.Index,
-					"hash", batch.Hash,
-					"RollupContractAddress", r.cfg.RollupContractAddress,
-					"err", err,
-				)
-				log.Debug(
 					"finalizeBatchWithProof in layer1 failed",
 					"index", batch.Index,
 					"hash", batch.Hash,
@@ -514,6 +495,7 @@ func (r *Layer2Relayer) ProcessCommittedBatches() {
 			}
 			return
 		}
+		bridgeL2BatchesFinalizedTotalCounter.Inc(1)
 		log.Info("finalizeBatchWithProof in layer1", "index", batch.Index, "batch hash", batch.Hash, "tx hash", hash)
 
 		// record and sync with db, @todo handle db error
@@ -524,7 +506,6 @@ func (r *Layer2Relayer) ProcessCommittedBatches() {
 				"tx hash", finalizeTxHash.String(), "err", err)
 		}
 		r.processingFinalization.Store(txID, hash)
-		r.metrics.rollupL2RelayerProcessCommittedBatchesFinalizedSuccessTotal.Inc()
 
 	case types.ProvingTaskFailed:
 		// We were unable to prove this batch. There are two possibilities:
@@ -550,29 +531,6 @@ func (r *Layer2Relayer) ProcessCommittedBatches() {
 	}
 }
 
-// batchStatusResponse the response schema
-type batchStatusResponse struct {
-	ErrCode int    `json:"errcode"`
-	ErrMsg  string `json:"errmsg"`
-	Data    bool   `json:"data"`
-}
-
-func (r *Layer2Relayer) getBatchStatusByIndex(batchIndex uint64) (bool, error) {
-	var response batchStatusResponse
-	resp, err := r.chainMonitorClient.R().SetResult(&response).Get(fmt.Sprintf("%s/v1/batch_status?batch_index=%d", r.cfg.ChainMonitor.BaseURL, batchIndex))
-	if err != nil {
-		return false, err
-	}
-	if resp.IsError() {
-		return false, resp.Error().(error)
-	}
-	if response.ErrCode != 0 {
-		return false, fmt.Errorf("failed to get batch status, errCode: %d, errMsg: %s", response.ErrCode, response.ErrMsg)
-	}
-
-	return response.Data, nil
-}
-
 func (r *Layer2Relayer) handleConfirmation(confirmation *sender.Confirmation) {
 	transactionType := "Unknown"
 	// check whether it is CommitBatches transaction
@@ -592,7 +550,7 @@ func (r *Layer2Relayer) handleConfirmation(confirmation *sender.Confirmation) {
 				"batch hash", batchHash.(string),
 				"tx hash", confirmation.TxHash.String(), "err", err)
 		}
-		r.metrics.rollupL2BatchesCommittedConfirmedTotal.Inc()
+		bridgeL2BatchesCommittedConfirmedTotalCounter.Inc(1)
 		r.processingCommitment.Delete(confirmation.ID)
 	}
 
@@ -614,7 +572,7 @@ func (r *Layer2Relayer) handleConfirmation(confirmation *sender.Confirmation) {
 				"batch hash", batchHash.(string),
 				"tx hash", confirmation.TxHash.String(), "err", err)
 		}
-		r.metrics.rollupL2BatchesFinalizedConfirmedTotal.Inc()
+		bridgeL2BatchesFinalizedConfirmedTotalCounter.Inc(1)
 		r.processingFinalization.Delete(confirmation.ID)
 	}
 	log.Info("transaction confirmed in layer1", "type", transactionType, "confirmation", confirmation)
@@ -625,12 +583,13 @@ func (r *Layer2Relayer) handleConfirmLoop(ctx context.Context) {
 		select {
 		case <-ctx.Done():
 			return
+		case confirmation := <-r.messageSender.ConfirmChan():
+			r.handleConfirmation(confirmation)
 		case confirmation := <-r.commitSender.ConfirmChan():
 			r.handleConfirmation(confirmation)
 		case confirmation := <-r.finalizeSender.ConfirmChan():
 			r.handleConfirmation(confirmation)
 		case cfm := <-r.gasOracleSender.ConfirmChan():
-			r.metrics.rollupL2BatchesGasOraclerConfirmedTotal.Inc()
 			if !cfm.IsSuccessful {
 				// @discuss: maybe make it pending again?
 				err := r.batchOrm.UpdateL2GasOracleStatusAndOracleTxHash(r.ctx, cfm.ID, types.GasOracleFailed, cfm.TxHash.String())

bridge/internal/controller/relayer/l2_relayer_test.go

@@ -4,12 +4,9 @@ import (
 	"context"
 	"errors"
 	"math/big"
-	"net/http"
-	"strings"
 	"testing"
 
 	"github.com/agiledragon/gomonkey/v2"
-	"github.com/gin-gonic/gin"
 	"github.com/scroll-tech/go-ethereum/common"
 	"github.com/smartystreets/goconvey/convey"
 	"github.com/stretchr/testify/assert"
@@ -22,8 +19,8 @@ import (
 
 	"scroll-tech/database/migrate"
 
-	"scroll-tech/rollup/internal/controller/sender"
-	"scroll-tech/rollup/internal/orm"
+	"scroll-tech/bridge/internal/controller/sender"
+	"scroll-tech/bridge/internal/orm"
 )
 
 func setupL2RelayerDB(t *testing.T) *gorm.DB {
@@ -38,7 +35,7 @@ func setupL2RelayerDB(t *testing.T) *gorm.DB {
 func testCreateNewRelayer(t *testing.T) {
 	db := setupL2RelayerDB(t)
 	defer database.CloseDB(db)
-	relayer, err := NewLayer2Relayer(context.Background(), l2Cli, db, cfg.L2Config.RelayerConfig, false, nil)
+	relayer, err := NewLayer2Relayer(context.Background(), l2Cli, db, cfg.L2Config.RelayerConfig, false)
 	assert.NoError(t, err)
 	assert.NotNil(t, relayer)
 }
@@ -48,7 +45,7 @@ func testL2RelayerProcessPendingBatches(t *testing.T) {
 	defer database.CloseDB(db)
 
 	l2Cfg := cfg.L2Config
-	relayer, err := NewLayer2Relayer(context.Background(), l2Cli, db, l2Cfg.RelayerConfig, false, nil)
+	relayer, err := NewLayer2Relayer(context.Background(), l2Cli, db, l2Cfg.RelayerConfig, false)
 	assert.NoError(t, err)
 
 	l2BlockOrm := orm.NewL2Block(db)
@@ -59,14 +56,8 @@ func testL2RelayerProcessPendingBatches(t *testing.T) {
 	assert.NoError(t, err)
 	dbChunk2, err := chunkOrm.InsertChunk(context.Background(), chunk2)
 	assert.NoError(t, err)
-	batchMeta := &types.BatchMeta{
-		StartChunkIndex: 0,
-		StartChunkHash:  dbChunk1.Hash,
-		EndChunkIndex:   1,
-		EndChunkHash:    dbChunk2.Hash,
-	}
 	batchOrm := orm.NewBatch(db)
-	batch, err := batchOrm.InsertBatch(context.Background(), []*types.Chunk{chunk1, chunk2}, batchMeta)
+	batch, err := batchOrm.InsertBatch(context.Background(), 0, 1, dbChunk1.Hash, dbChunk2.Hash, []*types.Chunk{chunk1, chunk2})
 	assert.NoError(t, err)
 
 	relayer.ProcessPendingBatches()
@@ -82,16 +73,10 @@ func testL2RelayerProcessCommittedBatches(t *testing.T) {
 	defer database.CloseDB(db)
 
 	l2Cfg := cfg.L2Config
-	relayer, err := NewLayer2Relayer(context.Background(), l2Cli, db, l2Cfg.RelayerConfig, false, nil)
+	relayer, err := NewLayer2Relayer(context.Background(), l2Cli, db, l2Cfg.RelayerConfig, false)
 	assert.NoError(t, err)
-	batchMeta := &types.BatchMeta{
-		StartChunkIndex: 0,
-		StartChunkHash:  chunkHash1.Hex(),
-		EndChunkIndex:   1,
-		EndChunkHash:    chunkHash2.Hex(),
-	}
 	batchOrm := orm.NewBatch(db)
-	batch, err := batchOrm.InsertBatch(context.Background(), []*types.Chunk{chunk1, chunk2}, batchMeta)
+	batch, err := batchOrm.InsertBatch(context.Background(), 0, 1, chunkHash1.Hex(), chunkHash2.Hex(), []*types.Chunk{chunk1, chunk2})
 	assert.NoError(t, err)
 
 	err = batchOrm.UpdateRollupStatus(context.Background(), batch.Hash, types.RollupCommitted)
@@ -129,7 +114,7 @@ func testL2RelayerCommitConfirm(t *testing.T) {
 	l2Cfg := cfg.L2Config
 	ctx, cancel := context.WithCancel(context.Background())
 	defer cancel()
-	l2Relayer, err := NewLayer2Relayer(ctx, l2Cli, db, l2Cfg.RelayerConfig, false, nil)
+	l2Relayer, err := NewLayer2Relayer(ctx, l2Cli, db, l2Cfg.RelayerConfig, false)
 	assert.NoError(t, err)
 
 	// Simulate message confirmations.
@@ -139,13 +124,7 @@ func testL2RelayerCommitConfirm(t *testing.T) {
 	batchOrm := orm.NewBatch(db)
 	batchHashes := make([]string, len(processingKeys))
 	for i := range batchHashes {
-		batchMeta := &types.BatchMeta{
-			StartChunkIndex: 0,
-			StartChunkHash:  chunkHash1.Hex(),
-			EndChunkIndex:   1,
-			EndChunkHash:    chunkHash2.Hex(),
-		}
-		batch, err := batchOrm.InsertBatch(context.Background(), []*types.Chunk{chunk1, chunk2}, batchMeta)
+		batch, err := batchOrm.InsertBatch(context.Background(), 0, 1, chunkHash1.Hex(), chunkHash2.Hex(), []*types.Chunk{chunk1, chunk2})
 		assert.NoError(t, err)
 		batchHashes[i] = batch.Hash
 	}
@@ -185,7 +164,7 @@ func testL2RelayerFinalizeConfirm(t *testing.T) {
 	l2Cfg := cfg.L2Config
 	ctx, cancel := context.WithCancel(context.Background())
 	defer cancel()
-	l2Relayer, err := NewLayer2Relayer(ctx, l2Cli, db, l2Cfg.RelayerConfig, false, nil)
+	l2Relayer, err := NewLayer2Relayer(ctx, l2Cli, db, l2Cfg.RelayerConfig, false)
 	assert.NoError(t, err)
 
 	// Simulate message confirmations.
@@ -195,13 +174,7 @@ func testL2RelayerFinalizeConfirm(t *testing.T) {
 	batchOrm := orm.NewBatch(db)
 	batchHashes := make([]string, len(processingKeys))
 	for i := range batchHashes {
-		batchMeta := &types.BatchMeta{
-			StartChunkIndex: 0,
-			StartChunkHash:  chunkHash1.Hex(),
-			EndChunkIndex:   1,
-			EndChunkHash:    chunkHash2.Hex(),
-		}
-		batch, err := batchOrm.InsertBatch(context.Background(), []*types.Chunk{chunk1, chunk2}, batchMeta)
+		batch, err := batchOrm.InsertBatch(context.Background(), 0, 1, chunkHash1.Hex(), chunkHash2.Hex(), []*types.Chunk{chunk1, chunk2})
 		assert.NoError(t, err)
 		batchHashes[i] = batch.Hash
 	}
@@ -237,30 +210,18 @@ func testL2RelayerGasOracleConfirm(t *testing.T) {
 	db := setupL2RelayerDB(t)
 	defer database.CloseDB(db)
 
-	batchMeta1 := &types.BatchMeta{
-		StartChunkIndex: 0,
-		StartChunkHash:  chunkHash1.Hex(),
-		EndChunkIndex:   0,
-		EndChunkHash:    chunkHash1.Hex(),
-	}
 	batchOrm := orm.NewBatch(db)
-	batch1, err := batchOrm.InsertBatch(context.Background(), []*types.Chunk{chunk1}, batchMeta1)
+	batch1, err := batchOrm.InsertBatch(context.Background(), 0, 0, chunkHash1.Hex(), chunkHash1.Hex(), []*types.Chunk{chunk1})
 	assert.NoError(t, err)
 
-	batchMeta2 := &types.BatchMeta{
-		StartChunkIndex: 1,
-		StartChunkHash:  chunkHash2.Hex(),
-		EndChunkIndex:   1,
-		EndChunkHash:    chunkHash2.Hex(),
-	}
-	batch2, err := batchOrm.InsertBatch(context.Background(), []*types.Chunk{chunk2}, batchMeta2)
+	batch2, err := batchOrm.InsertBatch(context.Background(), 1, 1, chunkHash2.Hex(), chunkHash2.Hex(), []*types.Chunk{chunk2})
 	assert.NoError(t, err)
 
 	// Create and set up the Layer2 Relayer.
 	l2Cfg := cfg.L2Config
 	ctx, cancel := context.WithCancel(context.Background())
 	defer cancel()
-	l2Relayer, err := NewLayer2Relayer(ctx, l2Cli, db, l2Cfg.RelayerConfig, false, nil)
+	l2Relayer, err := NewLayer2Relayer(ctx, l2Cli, db, l2Cfg.RelayerConfig, false)
 	assert.NoError(t, err)
 
 	// Simulate message confirmations.
@@ -298,7 +259,7 @@ func testLayer2RelayerProcessGasPriceOracle(t *testing.T) {
 	db := setupL2RelayerDB(t)
 	defer database.CloseDB(db)
 
-	relayer, err := NewLayer2Relayer(context.Background(), l2Cli, db, cfg.L2Config.RelayerConfig, false, nil)
+	relayer, err := NewLayer2Relayer(context.Background(), l2Cli, db, cfg.L2Config.RelayerConfig, false)
 	assert.NoError(t, err)
 	assert.NotNil(t, relayer)
 
@@ -370,33 +331,3 @@ func testLayer2RelayerProcessGasPriceOracle(t *testing.T) {
 	})
 	relayer.ProcessGasPriceOracle()
 }
-
-func mockChainMonitorServer(baseURL string) (*http.Server, error) {
-	router := gin.New()
-	r := router.Group("/v1")
-	r.GET("/batch_status", func(ctx *gin.Context) {
-		ctx.JSON(http.StatusOK, struct {
-			ErrCode int    `json:"errcode"`
-			ErrMsg  string `json:"errmsg"`
-			Data    bool   `json:"data"`
-		}{
-			ErrCode: 0,
-			ErrMsg:  "",
-			Data:    true,
-		})
-	})
-	return utils.StartHTTPServer(strings.Split(baseURL, "//")[1], router)
-}
-
-func testGetBatchStatusByIndex(t *testing.T) {
-	db := setupL2RelayerDB(t)
-	defer database.CloseDB(db)
-
-	relayer, err := NewLayer2Relayer(context.Background(), l2Cli, db, cfg.L2Config.RelayerConfig, false, nil)
-	assert.NoError(t, err)
-	assert.NotNil(t, relayer)
-
-	status, err := relayer.getBatchStatusByIndex(1)
-	assert.NoError(t, err)
-	assert.Equal(t, true, status)
-}

bridge/internal/controller/relayer/relayer_test.go

@@ -13,7 +13,7 @@ import (
 	"scroll-tech/common/docker"
 	"scroll-tech/common/types"
 
-	"scroll-tech/rollup/internal/config"
+	"scroll-tech/bridge/internal/config"
 )
 
 var (
@@ -86,12 +86,10 @@ func TestMain(m *testing.M) {
 
 func TestFunctions(t *testing.T) {
 	setupEnv(t)
-	srv, err := mockChainMonitorServer(cfg.L2Config.RelayerConfig.ChainMonitor.BaseURL)
-	assert.NoError(t, err)
-	defer srv.Close()
-
 	// Run l1 relayer test cases.
 	t.Run("TestCreateNewL1Relayer", testCreateNewL1Relayer)
+	t.Run("TestL1RelayerProcessSaveEvents", testL1RelayerProcessSaveEvents)
+	t.Run("TestL1RelayerMsgConfirm", testL1RelayerMsgConfirm)
 	t.Run("TestL1RelayerGasOracleConfirm", testL1RelayerGasOracleConfirm)
 	t.Run("TestL1RelayerProcessGasPriceOracle", testL1RelayerProcessGasPriceOracle)
 
@@ -103,6 +101,4 @@ func TestFunctions(t *testing.T) {
 	t.Run("TestL2RelayerFinalizeConfirm", testL2RelayerFinalizeConfirm)
 	t.Run("TestL2RelayerGasOracleConfirm", testL2RelayerGasOracleConfirm)
 	t.Run("TestLayer2RelayerProcessGasPriceOracle", testLayer2RelayerProcessGasPriceOracle)
-	// test getBatchStatusByIndex
-	t.Run("TestGetBatchStatusByIndex", testGetBatchStatusByIndex)
 }

bridge/internal/controller/sender/estimategas.go

@@ -7,18 +7,15 @@ import (
 	"github.com/scroll-tech/go-ethereum"
 	"github.com/scroll-tech/go-ethereum/accounts/abi/bind"
 	"github.com/scroll-tech/go-ethereum/common"
-	"github.com/scroll-tech/go-ethereum/log"
 )
 
 func (s *Sender) estimateLegacyGas(auth *bind.TransactOpts, contract *common.Address, value *big.Int, input []byte, minGasLimit uint64) (*FeeData, error) {
 	gasPrice, err := s.client.SuggestGasPrice(s.ctx)
 	if err != nil {
-		log.Error("estimateLegacyGas SuggestGasPrice failure", "error", err)
 		return nil, err
 	}
 	gasLimit, err := s.estimateGasLimit(auth, contract, input, gasPrice, nil, nil, value, minGasLimit)
 	if err != nil {
-		log.Error("estimateLegacyGas estimateGasLimit failure", "gasPrice", gasPrice, "error", err)
 		return nil, err
 	}
 	return &FeeData{
@@ -30,7 +27,6 @@ func (s *Sender) estimateLegacyGas(auth *bind.TransactOpts, contract *common.Add
 func (s *Sender) estimateDynamicGas(auth *bind.TransactOpts, contract *common.Address, value *big.Int, input []byte, minGasLimit uint64) (*FeeData, error) {
 	gasTipCap, err := s.client.SuggestGasTipCap(s.ctx)
 	if err != nil {
-		log.Error("estimateDynamicGas SuggestGasTipCap failure", "error", err)
 		return nil, err
 	}
 
@@ -44,11 +40,7 @@ func (s *Sender) estimateDynamicGas(auth *bind.TransactOpts, contract *common.Ad
 	)
 	gasLimit, err := s.estimateGasLimit(auth, contract, input, nil, gasTipCap, gasFeeCap, value, minGasLimit)
 	if err != nil {
-		log.Error("estimateDynamicGas estimateGasLimit failure", "error", err)
-		if minGasLimit == 0 {
-			return nil, err
-		}
-		gasLimit = minGasLimit
+		return nil, err
 	}
 	return &FeeData{
 		gasLimit:  gasLimit,
@@ -69,14 +61,13 @@ func (s *Sender) estimateGasLimit(opts *bind.TransactOpts, contract *common.Addr
 	}
 	gasLimit, err := s.client.EstimateGas(s.ctx, msg)
 	if err != nil {
-		log.Error("estimateGasLimit EstimateGas failure", "error", err)
 		return 0, err
 	}
 	if minGasLimit > gasLimit {
 		gasLimit = minGasLimit
 	}
 
-	gasLimit = gasLimit * 15 / 10 // 50% extra gas to avoid out of gas error
+	gasLimit = gasLimit * 15 / 10 // 50% extra gas to void out of gas error
 
 	return gasLimit, nil
 }

bridge/internal/controller/sender/sender.go

@@ -11,15 +11,14 @@ import (
 	"time"
 
 	cmapV2 "github.com/orcaman/concurrent-map/v2"
-	"github.com/prometheus/client_golang/prometheus"
 	"github.com/scroll-tech/go-ethereum/accounts/abi/bind"
 	"github.com/scroll-tech/go-ethereum/common"
 	"github.com/scroll-tech/go-ethereum/core/types"
 	"github.com/scroll-tech/go-ethereum/ethclient"
 	"github.com/scroll-tech/go-ethereum/log"
 
-	"scroll-tech/rollup/internal/config"
-	"scroll-tech/rollup/internal/utils"
+	"scroll-tech/bridge/internal/config"
+	"scroll-tech/bridge/internal/utils"
 )
 
 const (
@@ -71,8 +70,6 @@ type Sender struct {
 	client  *ethclient.Client // The client to retrieve on chain data or send transaction.
 	chainID *big.Int          // The chain id of the endpoint
 	ctx     context.Context
-	service string
-	name    string
 
 	auth       *bind.TransactOpts
 	minBalance *big.Int
@@ -83,13 +80,11 @@ type Sender struct {
 	confirmCh     chan *Confirmation
 
 	stopCh chan struct{}
-
-	metrics *senderMetrics
 }
 
 // NewSender returns a new instance of transaction sender
 // txConfirmationCh is used to notify confirmed transaction
-func NewSender(ctx context.Context, config *config.SenderConfig, priv *ecdsa.PrivateKey, service, name string, reg prometheus.Registerer) (*Sender, error) {
+func NewSender(ctx context.Context, config *config.SenderConfig, priv *ecdsa.PrivateKey) (*Sender, error) {
 	client, err := ethclient.Dial(config.Endpoint)
 	if err != nil {
 		return nil, fmt.Errorf("failed to dial eth client, err: %w", err)
@@ -140,10 +135,7 @@ func NewSender(ctx context.Context, config *config.SenderConfig, priv *ecdsa.Pri
 		baseFeePerGas: baseFeePerGas,
 		pendingTxs:    cmapV2.New[*PendingTransaction](),
 		stopCh:        make(chan struct{}),
-		name:          name,
-		service:       service,
 	}
-	sender.metrics = initSenderMetrics(reg)
 
 	go sender.loop(ctx)
 
@@ -191,15 +183,10 @@ func (s *Sender) getFeeData(auth *bind.TransactOpts, target *common.Address, val
 
 // SendTransaction send a signed L2tL1 transaction.
 func (s *Sender) SendTransaction(ID string, target *common.Address, value *big.Int, data []byte, minGasLimit uint64) (common.Hash, error) {
-	s.metrics.sendTransactionTotal.WithLabelValues(s.service, s.name).Inc()
 	if s.IsFull() {
-		s.metrics.sendTransactionFailureFullTx.WithLabelValues(s.service, s.name).Set(1)
 		return common.Hash{}, ErrFullPending
 	}
-
-	s.metrics.sendTransactionFailureFullTx.WithLabelValues(s.service, s.name).Set(0)
 	if ok := s.pendingTxs.SetIfAbsent(ID, nil); !ok {
-		s.metrics.sendTransactionFailureRepeatTransaction.WithLabelValues(s.service, s.name).Inc()
 		return common.Hash{}, fmt.Errorf("repeat transaction ID: %s", ID)
 	}
 
@@ -216,13 +203,9 @@ func (s *Sender) SendTransaction(ID string, target *common.Address, value *big.I
 	}()
 
 	if feeData, err = s.getFeeData(s.auth, target, value, data, minGasLimit); err != nil {
-		s.metrics.sendTransactionFailureGetFee.WithLabelValues(s.service, s.name).Inc()
-		log.Error("failed to get fee data", "err", err)
 		return common.Hash{}, fmt.Errorf("failed to get fee data, err: %w", err)
 	}
-
 	if tx, err = s.createAndSendTx(s.auth, feeData, target, value, data, nil); err != nil {
-		s.metrics.sendTransactionFailureSendTx.WithLabelValues(s.service, s.name).Inc()
 		return common.Hash{}, fmt.Errorf("failed to create and send transaction, err: %w", err)
 	}
 
@@ -311,20 +294,6 @@ func (s *Sender) createAndSendTx(auth *bind.TransactOpts, feeData *FeeData, targ
 		return nil, err
 	}
 
-	if feeData.gasTipCap != nil {
-		s.metrics.currentGasTipCap.WithLabelValues(s.service, s.name).Set(float64(feeData.gasTipCap.Uint64()))
-	}
-
-	if feeData.gasFeeCap != nil {
-		s.metrics.currentGasFeeCap.WithLabelValues(s.service, s.name).Set(float64(feeData.gasFeeCap.Uint64()))
-	}
-
-	if feeData.gasPrice != nil {
-		s.metrics.currentGasPrice.WithLabelValues(s.service, s.name).Set(float64(feeData.gasPrice.Uint64()))
-	}
-
-	s.metrics.currentGasLimit.WithLabelValues(s.service, s.name).Set(float64(feeData.gasLimit))
-
 	// update nonce when it is not from resubmit
 	if overrideNonce == nil {
 		auth.Nonce = big.NewInt(int64(nonce + 1))
@@ -347,15 +316,8 @@ func (s *Sender) resubmitTransaction(feeData *FeeData, auth *bind.TransactOpts,
 	escalateMultipleDen := new(big.Int).SetUint64(s.config.EscalateMultipleDen)
 	maxGasPrice := new(big.Int).SetUint64(s.config.MaxGasPrice)
 
-	txInfo := map[string]interface{}{
-		"tx_hash": tx.Hash().String(),
-		"tx_type": s.config.TxType,
-		"from":    auth.From.String(),
-	}
-
 	switch s.config.TxType {
 	case LegacyTxType, AccessListTxType: // `LegacyTxType`is for ganache mock node
-		originalGasPrice := feeData.gasPrice
 		gasPrice := escalateMultipleNum.Mul(escalateMultipleNum, big.NewInt(feeData.gasPrice.Int64()))
 		gasPrice = gasPrice.Div(gasPrice, escalateMultipleDen)
 		if gasPrice.Cmp(feeData.gasPrice) < 0 {
@@ -365,13 +327,7 @@ func (s *Sender) resubmitTransaction(feeData *FeeData, auth *bind.TransactOpts,
 			gasPrice = maxGasPrice
 		}
 		feeData.gasPrice = gasPrice
-
-		txInfo["original_gas_price"] = originalGasPrice
-		txInfo["adjusted_gas_price"] = gasPrice
 	default:
-		originalGasTipCap := big.NewInt(feeData.gasTipCap.Int64())
-		originalGasFeeCap := big.NewInt(feeData.gasFeeCap.Int64())
-
 		gasTipCap := big.NewInt(feeData.gasTipCap.Int64())
 		gasTipCap = gasTipCap.Mul(gasTipCap, escalateMultipleNum)
 		gasTipCap = gasTipCap.Div(gasTipCap, escalateMultipleDen)
@@ -403,17 +359,9 @@ func (s *Sender) resubmitTransaction(feeData *FeeData, auth *bind.TransactOpts,
 		}
 		feeData.gasFeeCap = gasFeeCap
 		feeData.gasTipCap = gasTipCap
-
-		txInfo["original_gas_tip_cap"] = originalGasTipCap
-		txInfo["adjusted_gas_tip_cap"] = gasTipCap
-		txInfo["original_gas_fee_cap"] = originalGasFeeCap
-		txInfo["adjusted_gas_fee_cap"] = gasFeeCap
 	}
 
-	log.Debug("Transaction gas adjustment details", txInfo)
-
 	nonce := tx.Nonce()
-	s.metrics.resubmitTransactionTotal.WithLabelValues(s.service, s.name).Inc()
 	return s.createAndSendTx(auth, feeData, tx.To(), tx.Value(), tx.Data(), &nonce)
 }
 
@@ -450,12 +398,6 @@ func (s *Sender) checkPendingTransaction(header *types.Header, confirmed uint64)
 				}
 			}
 		} else if s.config.EscalateBlocks+pending.submitAt < number {
-			log.Debug("resubmit transaction",
-				"tx hash", pending.tx.Hash().String(),
-				"submit block number", pending.submitAt,
-				"current block number", number,
-				"escalateBlocks", s.config.EscalateBlocks)
-
 			var tx *types.Transaction
 			tx, err := s.resubmitTransaction(pending.feeData, pending.signer, pending.tx)
 			if err != nil {
@@ -512,8 +454,8 @@ func (s *Sender) checkBalance(ctx context.Context) error {
 	}
 
 	if bls.Cmp(s.minBalance) < 0 {
-		return fmt.Errorf("insufficient account balance - actual balance: %s, minimum required balance: %s, address: %s",
-			bls.String(), s.minBalance.String(), s.auth.From.String())
+		return fmt.Errorf("insufficient account balance - actual balance: %s, minimum required balance: %s",
+			bls.String(), s.minBalance.String())
 	}
 
 	return nil
@@ -530,7 +472,6 @@ func (s *Sender) loop(ctx context.Context) {
 	for {
 		select {
 		case <-checkTick.C:
-			s.metrics.senderCheckPendingTransactionTotal.WithLabelValues(s.service, s.name).Inc()
 			header, err := s.client.HeaderByNumber(s.ctx, nil)
 			if err != nil {
 				log.Error("failed to get latest head", "err", err)
@@ -545,7 +486,6 @@ func (s *Sender) loop(ctx context.Context) {
 
 			s.checkPendingTransaction(header, confirmed)
 		case <-checkBalanceTicker.C:
-			s.metrics.senderCheckBalancerTotal.WithLabelValues(s.service, s.name).Inc()
 			// Check and set balance.
 			if err := s.checkBalance(ctx); err != nil {
 				log.Error("check balance error", "err", err)

bridge/internal/controller/sender/sender_test.go

@@ -19,7 +19,7 @@ import (
 
 	"scroll-tech/common/docker"
 
-	"scroll-tech/rollup/internal/config"
+	"scroll-tech/bridge/internal/config"
 )
 
 const TXBatch = 50
@@ -70,7 +70,7 @@ func testNewSender(t *testing.T) {
 		// exit by Stop()
 		cfgCopy1 := *cfg.L1Config.RelayerConfig.SenderConfig
 		cfgCopy1.TxType = txType
-		newSender1, err := NewSender(context.Background(), &cfgCopy1, privateKey, "test", "test", nil)
+		newSender1, err := NewSender(context.Background(), &cfgCopy1, privateKey)
 		assert.NoError(t, err)
 		newSender1.Stop()
 
@@ -78,7 +78,7 @@ func testNewSender(t *testing.T) {
 		cfgCopy2 := *cfg.L1Config.RelayerConfig.SenderConfig
 		cfgCopy2.TxType = txType
 		subCtx, cancel := context.WithCancel(context.Background())
-		_, err = NewSender(subCtx, &cfgCopy2, privateKey, "test", "test", nil)
+		_, err = NewSender(subCtx, &cfgCopy2, privateKey)
 		assert.NoError(t, err)
 		cancel()
 	}
@@ -90,7 +90,7 @@ func testPendLimit(t *testing.T) {
 		cfgCopy.TxType = txType
 		cfgCopy.Confirmations = rpc.LatestBlockNumber
 		cfgCopy.PendingLimit = 2
-		newSender, err := NewSender(context.Background(), &cfgCopy, privateKey, "test", "test", nil)
+		newSender, err := NewSender(context.Background(), &cfgCopy, privateKey)
 		assert.NoError(t, err)
 
 		for i := 0; i < 2*newSender.PendingLimit(); i++ {
@@ -107,7 +107,7 @@ func testMinGasLimit(t *testing.T) {
 		cfgCopy := *cfg.L1Config.RelayerConfig.SenderConfig
 		cfgCopy.TxType = txType
 		cfgCopy.Confirmations = rpc.LatestBlockNumber
-		newSender, err := NewSender(context.Background(), &cfgCopy, privateKey, "test", "test", nil)
+		newSender, err := NewSender(context.Background(), &cfgCopy, privateKey)
 		assert.NoError(t, err)
 
 		client, err := ethclient.Dial(cfgCopy.Endpoint)
@@ -135,7 +135,7 @@ func testResubmitTransaction(t *testing.T) {
 	for _, txType := range txTypes {
 		cfgCopy := *cfg.L1Config.RelayerConfig.SenderConfig
 		cfgCopy.TxType = txType
-		s, err := NewSender(context.Background(), &cfgCopy, privateKey, "test", "test", nil)
+		s, err := NewSender(context.Background(), &cfgCopy, privateKey)
 		assert.NoError(t, err)
 		tx := types.NewTransaction(s.auth.Nonce.Uint64(), common.Address{}, big.NewInt(0), 0, big.NewInt(0), nil)
 		feeData, err := s.getFeeData(s.auth, &common.Address{}, big.NewInt(0), nil, 0)
@@ -151,7 +151,7 @@ func testResubmitTransactionWithRisingBaseFee(t *testing.T) {
 
 	cfgCopy := *cfg.L1Config.RelayerConfig.SenderConfig
 	cfgCopy.TxType = txType
-	s, err := NewSender(context.Background(), &cfgCopy, privateKey, "test", "test", nil)
+	s, err := NewSender(context.Background(), &cfgCopy, privateKey)
 	assert.NoError(t, err)
 	tx := types.NewTransaction(s.auth.Nonce.Uint64(), common.Address{}, big.NewInt(0), 0, big.NewInt(0), nil)
 	s.baseFeePerGas = 1000
@@ -186,7 +186,7 @@ func testCheckPendingTransaction(t *testing.T) {
 	for _, txType := range txTypes {
 		cfgCopy := *cfg.L1Config.RelayerConfig.SenderConfig
 		cfgCopy.TxType = txType
-		s, err := NewSender(context.Background(), &cfgCopy, privateKey, "test", "test", nil)
+		s, err := NewSender(context.Background(), &cfgCopy, privateKey)
 		assert.NoError(t, err)
 
 		header := &types.Header{Number: big.NewInt(100), BaseFee: big.NewInt(100)}

bridge/internal/controller/watcher/batch_proposer.go

@@ -0,0 +1,211 @@
+package watcher
+
+import (
+	"context"
+	"fmt"
+	"time"
+
+	"github.com/scroll-tech/go-ethereum/log"
+	"gorm.io/gorm"
+
+	"scroll-tech/common/types"
+
+	"scroll-tech/bridge/internal/config"
+	"scroll-tech/bridge/internal/orm"
+)
+
+// BatchProposer proposes batches based on available unbatched chunks.
+type BatchProposer struct {
+	ctx context.Context
+	db  *gorm.DB
+
+	batchOrm   *orm.Batch
+	chunkOrm   *orm.Chunk
+	l2BlockOrm *orm.L2Block
+
+	maxChunkNumPerBatch             uint64
+	maxL1CommitGasPerBatch          uint64
+	maxL1CommitCalldataSizePerBatch uint32
+	minChunkNumPerBatch             uint64
+	batchTimeoutSec                 uint64
+	gasCostIncreaseMultiplier       float64
+}
+
+// NewBatchProposer creates a new BatchProposer instance.
+func NewBatchProposer(ctx context.Context, cfg *config.BatchProposerConfig, db *gorm.DB) *BatchProposer {
+	return &BatchProposer{
+		ctx:                             ctx,
+		db:                              db,
+		batchOrm:                        orm.NewBatch(db),
+		chunkOrm:                        orm.NewChunk(db),
+		l2BlockOrm:                      orm.NewL2Block(db),
+		maxChunkNumPerBatch:             cfg.MaxChunkNumPerBatch,
+		maxL1CommitGasPerBatch:          cfg.MaxL1CommitGasPerBatch,
+		maxL1CommitCalldataSizePerBatch: cfg.MaxL1CommitCalldataSizePerBatch,
+		minChunkNumPerBatch:             cfg.MinChunkNumPerBatch,
+		batchTimeoutSec:                 cfg.BatchTimeoutSec,
+		gasCostIncreaseMultiplier:       cfg.GasCostIncreaseMultiplier,
+	}
+}
+
+// TryProposeBatch tries to propose a new batches.
+func (p *BatchProposer) TryProposeBatch() {
+	dbChunks, err := p.proposeBatchChunks()
+	if err != nil {
+		log.Error("proposeBatchChunks failed", "err", err)
+		return
+	}
+	if err := p.updateBatchInfoInDB(dbChunks); err != nil {
+		log.Error("update batch info in db failed", "err", err)
+	}
+}
+
+func (p *BatchProposer) updateBatchInfoInDB(dbChunks []*orm.Chunk) error {
+	numChunks := len(dbChunks)
+	if numChunks <= 0 {
+		return nil
+	}
+	chunks, err := p.dbChunksToBridgeChunks(dbChunks)
+	if err != nil {
+		return err
+	}
+
+	startChunkIndex := dbChunks[0].Index
+	startChunkHash := dbChunks[0].Hash
+	endChunkIndex := dbChunks[numChunks-1].Index
+	endChunkHash := dbChunks[numChunks-1].Hash
+	err = p.db.Transaction(func(dbTX *gorm.DB) error {
+		batch, dbErr := p.batchOrm.InsertBatch(p.ctx, startChunkIndex, endChunkIndex, startChunkHash, endChunkHash, chunks, dbTX)
+		if dbErr != nil {
+			return dbErr
+		}
+		dbErr = p.chunkOrm.UpdateBatchHashInRange(p.ctx, startChunkIndex, endChunkIndex, batch.Hash, dbTX)
+		if dbErr != nil {
+			return dbErr
+		}
+		return nil
+	})
+	return err
+}
+
+func (p *BatchProposer) proposeBatchChunks() ([]*orm.Chunk, error) {
+	dbChunks, err := p.chunkOrm.GetUnbatchedChunks(p.ctx)
+	if err != nil {
+		return nil, err
+	}
+
+	if len(dbChunks) == 0 {
+		return nil, nil
+	}
+
+	firstChunk := dbChunks[0]
+	totalL1CommitCalldataSize := firstChunk.TotalL1CommitCalldataSize
+	totalL1CommitGas := firstChunk.TotalL1CommitGas
+	totalChunks := uint64(1)
+	totalL1MessagePopped := firstChunk.TotalL1MessagesPoppedBefore + uint64(firstChunk.TotalL1MessagesPoppedInChunk)
+
+	parentBatch, err := p.batchOrm.GetLatestBatch(p.ctx)
+	if err != nil {
+		return nil, err
+	}
+
+	getKeccakGas := func(size uint64) uint64 {
+		return 30 + 6*((size+31)/32) // 30 + 6 * ceil(size / 32)
+	}
+
+	// Add extra gas costs
+	totalL1CommitGas += 4 * 2100                                       // 4 one-time cold sload for commitBatch
+	totalL1CommitGas += 20000                                          // 1 time sstore
+	totalL1CommitGas += 16                                             // version in calldata
+	totalL1CommitGas += 16 * (32 * (totalL1MessagePopped + 255) / 256) // _skippedL1MessageBitmap in calldata
+
+	// adjusting gas:
+	// add 1 time cold sload (2100 gas) for L1MessageQueue
+	// add 1 time cold address access (2600 gas) for L1MessageQueue
+	// minus 1 time warm sload (100 gas) & 1 time warm address access (100 gas)
+	totalL1CommitGas += (2100 + 2600 - 100 - 100)
+	totalL1CommitGas += getKeccakGas(32 * totalChunks) // batch data hash
+	if parentBatch != nil {
+		totalL1CommitGas += getKeccakGas(uint64(len(parentBatch.BatchHeader))) // parent batch header hash
+		totalL1CommitGas += 16 * uint64(len(parentBatch.BatchHeader))          // parent batch header in calldata
+	}
+	// batch header size: 89 + 32 * ceil(l1MessagePopped / 256)
+	totalL1CommitGas += getKeccakGas(89 + 32*(totalL1MessagePopped+255)/256)
+
+	// Check if the first chunk breaks hard limits.
+	// If so, it indicates there are bugs in chunk-proposer, manual fix is needed.
+	if p.gasCostIncreaseMultiplier*float64(totalL1CommitGas) > float64(p.maxL1CommitGasPerBatch) {
+		return nil, fmt.Errorf(
+			"the first chunk exceeds l1 commit gas limit; start block number: %v, end block number: %v, commit gas: %v, max commit gas limit: %v",
+			firstChunk.StartBlockNumber,
+			firstChunk.EndBlockNumber,
+			totalL1CommitGas,
+			p.maxL1CommitGasPerBatch,
+		)
+	}
+
+	if totalL1CommitCalldataSize > p.maxL1CommitCalldataSizePerBatch {
+		return nil, fmt.Errorf(
+			"the first chunk exceeds l1 commit calldata size limit; start block number: %v, end block number %v, calldata size: %v, max calldata size limit: %v",
+			firstChunk.StartBlockNumber,
+			firstChunk.EndBlockNumber,
+			totalL1CommitCalldataSize,
+			p.maxL1CommitCalldataSizePerBatch,
+		)
+	}
+
+	for i, chunk := range dbChunks[1:] {
+		totalL1CommitCalldataSize += chunk.TotalL1CommitCalldataSize
+		totalL1CommitGas += chunk.TotalL1CommitGas
+		// adjust batch data hash gas cost
+		totalL1CommitGas -= getKeccakGas(32 * totalChunks)
+		totalChunks++
+		totalL1CommitGas += getKeccakGas(32 * totalChunks)
+		// adjust batch header hash gas cost
+		totalL1CommitGas -= getKeccakGas(89 + 32*(totalL1MessagePopped+255)/256)
+		totalL1CommitGas -= 16 * (32 * (totalL1MessagePopped + 255) / 256)
+		totalL1MessagePopped += uint64(chunk.TotalL1MessagesPoppedInChunk)
+		totalL1CommitGas += 16 * (32 * (totalL1MessagePopped + 255) / 256)
+		totalL1CommitGas += getKeccakGas(89 + 32*(totalL1MessagePopped+255)/256)
+		if totalChunks > p.maxChunkNumPerBatch ||
+			totalL1CommitCalldataSize > p.maxL1CommitCalldataSizePerBatch ||
+			p.gasCostIncreaseMultiplier*float64(totalL1CommitGas) > float64(p.maxL1CommitGasPerBatch) {
+			return dbChunks[:i+1], nil
+		}
+	}
+
+	var hasChunkTimeout bool
+	currentTimeSec := uint64(time.Now().Unix())
+	if dbChunks[0].StartBlockTime+p.batchTimeoutSec < currentTimeSec {
+		log.Warn("first block timeout",
+			"start block number", dbChunks[0].StartBlockNumber,
+			"first block timestamp", dbChunks[0].StartBlockTime,
+			"chunk outdated time threshold", currentTimeSec,
+		)
+		hasChunkTimeout = true
+	}
+
+	if !hasChunkTimeout && uint64(len(dbChunks)) < p.minChunkNumPerBatch {
+		log.Warn("The chunk number of the batch is less than the minimum limit",
+			"chunk num", len(dbChunks), "minChunkNumPerBatch", p.minChunkNumPerBatch,
+		)
+		return nil, nil
+	}
+	return dbChunks, nil
+}
+
+func (p *BatchProposer) dbChunksToBridgeChunks(dbChunks []*orm.Chunk) ([]*types.Chunk, error) {
+	chunks := make([]*types.Chunk, len(dbChunks))
+	for i, c := range dbChunks {
+		wrappedBlocks, err := p.l2BlockOrm.GetL2BlocksInRange(p.ctx, c.StartBlockNumber, c.EndBlockNumber)
+		if err != nil {
+			log.Error("Failed to fetch wrapped blocks",
+				"start number", c.StartBlockNumber, "end number", c.EndBlockNumber, "error", err)
+			return nil, err
+		}
+		chunks[i] = &types.Chunk{
+			Blocks: wrappedBlocks,
+		}
+	}
+	return chunks, nil
+}

bridge/internal/controller/watcher/batch_proposer_test.go

@@ -9,8 +9,8 @@ import (
 	"scroll-tech/common/database"
 	"scroll-tech/common/types"
 
-	"scroll-tech/rollup/internal/config"
-	"scroll-tech/rollup/internal/orm"
+	"scroll-tech/bridge/internal/config"
+	"scroll-tech/bridge/internal/orm"
 )
 
 // TODO: Add unit tests that the limits are enforced correctly.
@@ -23,22 +23,30 @@ func testBatchProposer(t *testing.T) {
 	assert.NoError(t, err)
 
 	cp := NewChunkProposer(context.Background(), &config.ChunkProposerConfig{
-		MaxTxNumPerChunk:                10000,
+		MaxTxGasPerChunk:                1000000000,
+		MaxL2TxNumPerChunk:              10000,
 		MaxL1CommitGasPerChunk:          50000000000,
 		MaxL1CommitCalldataSizePerChunk: 1000000,
+		MinL1CommitCalldataSizePerChunk: 0,
 		MaxRowConsumptionPerChunk:       1048319,
 		ChunkTimeoutSec:                 300,
-	}, db, nil)
+	}, db)
 	cp.TryProposeChunk()
 
 	bp := NewBatchProposer(context.Background(), &config.BatchProposerConfig{
 		MaxChunkNumPerBatch:             10,
 		MaxL1CommitGasPerBatch:          50000000000,
 		MaxL1CommitCalldataSizePerBatch: 1000000,
+		MinChunkNumPerBatch:             1,
 		BatchTimeoutSec:                 300,
-	}, db, nil)
+	}, db)
 	bp.TryProposeBatch()
 
+	chunkOrm := orm.NewChunk(db)
+	chunks, err := chunkOrm.GetUnbatchedChunks(context.Background())
+	assert.NoError(t, err)
+	assert.Empty(t, chunks)
+
 	batchOrm := orm.NewBatch(db)
 	// get all batches.
 	batches, err := batchOrm.GetBatches(context.Background(), map[string]interface{}{}, []string{}, 0)
@@ -49,7 +57,6 @@ func testBatchProposer(t *testing.T) {
 	assert.Equal(t, types.RollupPending, types.RollupStatus(batches[0].RollupStatus))
 	assert.Equal(t, types.ProvingTaskUnassigned, types.ProvingStatus(batches[0].ProvingStatus))
 
-	chunkOrm := orm.NewChunk(db)
 	dbChunks, err := chunkOrm.GetChunksInRange(context.Background(), 0, 0)
 	assert.NoError(t, err)
 	assert.Len(t, batches, 1)

bridge/internal/controller/watcher/chunk_proposer.go

@@ -0,0 +1,222 @@
+package watcher
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"time"
+
+	gethTypes "github.com/scroll-tech/go-ethereum/core/types"
+	"github.com/scroll-tech/go-ethereum/log"
+	"gorm.io/gorm"
+
+	"scroll-tech/common/types"
+
+	"scroll-tech/bridge/internal/config"
+	"scroll-tech/bridge/internal/orm"
+)
+
+// chunkRowConsumption is map(sub-circuit name => sub-circuit row count)
+type chunkRowConsumption map[string]uint64
+
+// add accumulates row consumption per sub-circuit
+func (crc *chunkRowConsumption) add(rowConsumption *gethTypes.RowConsumption) error {
+	if rowConsumption == nil {
+		return errors.New("rowConsumption is <nil>")
+	}
+	for _, subCircuit := range *rowConsumption {
+		(*crc)[subCircuit.Name] += subCircuit.RowNumber
+	}
+	return nil
+}
+
+// max finds the maximum row consumption among all sub-circuits
+func (crc *chunkRowConsumption) max() uint64 {
+	var max uint64
+	for _, value := range *crc {
+		if value > max {
+			max = value
+		}
+	}
+	return max
+}
+
+// ChunkProposer proposes chunks based on available unchunked blocks.
+type ChunkProposer struct {
+	ctx context.Context
+	db  *gorm.DB
+
+	chunkOrm   *orm.Chunk
+	l2BlockOrm *orm.L2Block
+
+	maxTxGasPerChunk                uint64
+	maxL2TxNumPerChunk              uint64
+	maxL1CommitGasPerChunk          uint64
+	maxL1CommitCalldataSizePerChunk uint64
+	minL1CommitCalldataSizePerChunk uint64
+	maxRowConsumptionPerChunk       uint64
+	chunkTimeoutSec                 uint64
+	gasCostIncreaseMultiplier       float64
+}
+
+// NewChunkProposer creates a new ChunkProposer instance.
+func NewChunkProposer(ctx context.Context, cfg *config.ChunkProposerConfig, db *gorm.DB) *ChunkProposer {
+	return &ChunkProposer{
+		ctx:                             ctx,
+		db:                              db,
+		chunkOrm:                        orm.NewChunk(db),
+		l2BlockOrm:                      orm.NewL2Block(db),
+		maxTxGasPerChunk:                cfg.MaxTxGasPerChunk,
+		maxL2TxNumPerChunk:              cfg.MaxL2TxNumPerChunk,
+		maxL1CommitGasPerChunk:          cfg.MaxL1CommitGasPerChunk,
+		maxL1CommitCalldataSizePerChunk: cfg.MaxL1CommitCalldataSizePerChunk,
+		minL1CommitCalldataSizePerChunk: cfg.MinL1CommitCalldataSizePerChunk,
+		maxRowConsumptionPerChunk:       cfg.MaxRowConsumptionPerChunk,
+		chunkTimeoutSec:                 cfg.ChunkTimeoutSec,
+		gasCostIncreaseMultiplier:       cfg.GasCostIncreaseMultiplier,
+	}
+}
+
+// TryProposeChunk tries to propose a new chunk.
+func (p *ChunkProposer) TryProposeChunk() {
+	proposedChunk, err := p.proposeChunk()
+	if err != nil {
+		log.Error("propose new chunk failed", "err", err)
+		return
+	}
+
+	if err := p.updateChunkInfoInDB(proposedChunk); err != nil {
+		log.Error("update chunk info in orm failed", "err", err)
+	}
+}
+
+func (p *ChunkProposer) updateChunkInfoInDB(chunk *types.Chunk) error {
+	if chunk == nil {
+		return nil
+	}
+
+	err := p.db.Transaction(func(dbTX *gorm.DB) error {
+		dbChunk, err := p.chunkOrm.InsertChunk(p.ctx, chunk, dbTX)
+		if err != nil {
+			return err
+		}
+		if err := p.l2BlockOrm.UpdateChunkHashInRange(p.ctx, dbChunk.StartBlockNumber, dbChunk.EndBlockNumber, dbChunk.Hash, dbTX); err != nil {
+			log.Error("failed to update chunk_hash for l2_blocks", "chunk hash", chunk.Hash, "start block", 0, "end block", 0, "err", err)
+			return err
+		}
+		return nil
+	})
+	return err
+}
+
+func (p *ChunkProposer) proposeChunk() (*types.Chunk, error) {
+	blocks, err := p.l2BlockOrm.GetUnchunkedBlocks(p.ctx)
+	if err != nil {
+		return nil, err
+	}
+
+	if len(blocks) == 0 {
+		return nil, nil
+	}
+
+	chunk := &types.Chunk{Blocks: blocks[:1]}
+	firstBlock := chunk.Blocks[0]
+	totalTxGasUsed := firstBlock.Header.GasUsed
+	totalL2TxNum := firstBlock.L2TxsNum()
+	totalL1CommitCalldataSize := firstBlock.EstimateL1CommitCalldataSize()
+	crc := chunkRowConsumption{}
+	totalL1CommitGas := chunk.EstimateL1CommitGas()
+
+	if err := crc.add(firstBlock.RowConsumption); err != nil {
+		return nil, fmt.Errorf("chunk-proposer failed to update chunk row consumption: %v", err)
+	}
+
+	// Check if the first block breaks hard limits.
+	// If so, it indicates there are bugs in sequencer, manual fix is needed.
+	if totalL2TxNum > p.maxL2TxNumPerChunk {
+		return nil, fmt.Errorf(
+			"the first block exceeds l2 tx number limit; block number: %v, number of transactions: %v, max transaction number limit: %v",
+			firstBlock.Header.Number,
+			totalL2TxNum,
+			p.maxL2TxNumPerChunk,
+		)
+	}
+
+	if p.gasCostIncreaseMultiplier*float64(totalL1CommitGas) > float64(p.maxL1CommitGasPerChunk) {
+		return nil, fmt.Errorf(
+			"the first block exceeds l1 commit gas limit; block number: %v, commit gas: %v, max commit gas limit: %v",
+			firstBlock.Header.Number,
+			totalL1CommitGas,
+			p.maxL1CommitGasPerChunk,
+		)
+	}
+
+	if totalL1CommitCalldataSize > p.maxL1CommitCalldataSizePerChunk {
+		return nil, fmt.Errorf(
+			"the first block exceeds l1 commit calldata size limit; block number: %v, calldata size: %v, max calldata size limit: %v",
+			firstBlock.Header.Number,
+			totalL1CommitCalldataSize,
+			p.maxL1CommitCalldataSizePerChunk,
+		)
+	}
+
+	// Check if the first block breaks any soft limits.
+	if totalTxGasUsed > p.maxTxGasPerChunk {
+		log.Warn(
+			"The first block in chunk exceeds l2 tx gas limit",
+			"block number", firstBlock.Header.Number,
+			"gas used", totalTxGasUsed,
+			"max gas limit", p.maxTxGasPerChunk,
+		)
+	}
+	if max := crc.max(); max > p.maxRowConsumptionPerChunk {
+		return nil, fmt.Errorf(
+			"the first block exceeds row consumption limit; block number: %v, row consumption: %v, max: %v, limit: %v",
+			firstBlock.Header.Number,
+			crc,
+			max,
+			p.maxRowConsumptionPerChunk,
+		)
+	}
+
+	for _, block := range blocks[1:] {
+		chunk.Blocks = append(chunk.Blocks, block)
+		totalTxGasUsed += block.Header.GasUsed
+		totalL2TxNum += block.L2TxsNum()
+		totalL1CommitCalldataSize += block.EstimateL1CommitCalldataSize()
+		totalL1CommitGas = chunk.EstimateL1CommitGas()
+
+		if err := crc.add(block.RowConsumption); err != nil {
+			return nil, fmt.Errorf("chunk-proposer failed to update chunk row consumption: %v", err)
+		}
+
+		if totalTxGasUsed > p.maxTxGasPerChunk ||
+			totalL2TxNum > p.maxL2TxNumPerChunk ||
+			totalL1CommitCalldataSize > p.maxL1CommitCalldataSizePerChunk ||
+			p.gasCostIncreaseMultiplier*float64(totalL1CommitGas) > float64(p.maxL1CommitGasPerChunk) ||
+			crc.max() > p.maxRowConsumptionPerChunk {
+			chunk.Blocks = chunk.Blocks[:len(chunk.Blocks)-1] // remove the last block from chunk
+			break
+		}
+	}
+
+	var hasBlockTimeout bool
+	currentTimeSec := uint64(time.Now().Unix())
+	if blocks[0].Header.Time+p.chunkTimeoutSec < currentTimeSec {
+		log.Warn("first block timeout",
+			"block number", blocks[0].Header.Number,
+			"block timestamp", blocks[0].Header.Time,
+			"block outdated time threshold", currentTimeSec,
+		)
+		hasBlockTimeout = true
+	}
+
+	if !hasBlockTimeout && totalL1CommitCalldataSize < p.minL1CommitCalldataSizePerChunk {
+		log.Warn("The calldata size of the chunk is less than the minimum limit",
+			"totalL1CommitCalldataSize", totalL1CommitCalldataSize,
+			"minL1CommitCalldataSizePerChunk", p.minL1CommitCalldataSizePerChunk,
+		)
+		return nil, nil
+	}
+	return chunk, nil
+}

bridge/internal/controller/watcher/chunk_proposer_test.go

@@ -9,8 +9,8 @@ import (
 	"scroll-tech/common/database"
 	"scroll-tech/common/types"
 
-	"scroll-tech/rollup/internal/config"
-	"scroll-tech/rollup/internal/orm"
+	"scroll-tech/bridge/internal/config"
+	"scroll-tech/bridge/internal/orm"
 )
 
 // TODO: Add unit tests that the limits are enforced correctly.
@@ -23,12 +23,14 @@ func testChunkProposer(t *testing.T) {
 	assert.NoError(t, err)
 
 	cp := NewChunkProposer(context.Background(), &config.ChunkProposerConfig{
-		MaxTxNumPerChunk:                10000,
+		MaxTxGasPerChunk:                1000000000,
+		MaxL2TxNumPerChunk:              10000,
 		MaxL1CommitGasPerChunk:          50000000000,
 		MaxL1CommitCalldataSizePerChunk: 1000000,
+		MinL1CommitCalldataSizePerChunk: 0,
 		MaxRowConsumptionPerChunk:       1048319,
 		ChunkTimeoutSec:                 300,
-	}, db, nil)
+	}, db)
 	cp.TryProposeChunk()
 
 	expectedChunk := &types.Chunk{
@@ -38,7 +40,7 @@ func testChunkProposer(t *testing.T) {
 	assert.NoError(t, err)
 
 	chunkOrm := orm.NewChunk(db)
-	chunks, err := chunkOrm.GetChunksGEIndex(context.Background(), 0, 0)
+	chunks, err := chunkOrm.GetUnbatchedChunks(context.Background())
 	assert.NoError(t, err)
 	assert.Len(t, chunks, 1)
 	assert.Equal(t, expectedHash.Hex(), chunks[0].Hash)
@@ -53,16 +55,18 @@ func testChunkProposerRowConsumption(t *testing.T) {
 	assert.NoError(t, err)
 
 	cp := NewChunkProposer(context.Background(), &config.ChunkProposerConfig{
-		MaxTxNumPerChunk:                10000,
+		MaxTxGasPerChunk:                1000000000,
+		MaxL2TxNumPerChunk:              10000,
 		MaxL1CommitGasPerChunk:          50000000000,
 		MaxL1CommitCalldataSizePerChunk: 1000000,
+		MinL1CommitCalldataSizePerChunk: 0,
 		MaxRowConsumptionPerChunk:       0, // !
 		ChunkTimeoutSec:                 300,
-	}, db, nil)
+	}, db)
 	cp.TryProposeChunk()
 
 	chunkOrm := orm.NewChunk(db)
-	chunks, err := chunkOrm.GetChunksGEIndex(context.Background(), 0, 0)
+	chunks, err := chunkOrm.GetUnbatchedChunks(context.Background())
 	assert.NoError(t, err)
 	assert.Len(t, chunks, 0)
 }

bridge/internal/controller/watcher/l1_watcher.go

@@ -4,7 +4,6 @@ import (
 	"context"
 	"math/big"
 
-	"github.com/prometheus/client_golang/prometheus"
 	geth "github.com/scroll-tech/go-ethereum"
 	"github.com/scroll-tech/go-ethereum/accounts/abi"
 	"github.com/scroll-tech/go-ethereum/common"
@@ -12,14 +11,22 @@ import (
 	"github.com/scroll-tech/go-ethereum/crypto"
 	"github.com/scroll-tech/go-ethereum/ethclient"
 	"github.com/scroll-tech/go-ethereum/log"
+	gethMetrics "github.com/scroll-tech/go-ethereum/metrics"
 	"github.com/scroll-tech/go-ethereum/rpc"
 	"gorm.io/gorm"
 
+	"scroll-tech/common/metrics"
 	"scroll-tech/common/types"
 
-	bridgeAbi "scroll-tech/rollup/abi"
-	"scroll-tech/rollup/internal/orm"
-	"scroll-tech/rollup/internal/utils"
+	bridgeAbi "scroll-tech/bridge/abi"
+	"scroll-tech/bridge/internal/orm"
+	"scroll-tech/bridge/internal/utils"
+)
+
+var (
+	bridgeL1MsgsSyncHeightGauge          = gethMetrics.NewRegisteredGauge("bridge/l1/msgs/sync/height", metrics.ScrollRegistry)
+	bridgeL1MsgsSentEventsTotalCounter   = gethMetrics.NewRegisteredCounter("bridge/l1/msgs/sent/events/total", metrics.ScrollRegistry)
+	bridgeL1MsgsRollupEventsTotalCounter = gethMetrics.NewRegisteredCounter("bridge/l1/msgs/rollup/events/total", metrics.ScrollRegistry)
 )
 
 type rollupEvent struct {
@@ -39,6 +46,9 @@ type L1WatcherClient struct {
 	// The number of new blocks to wait for a block to be confirmed
 	confirmations rpc.BlockNumber
 
+	messengerAddress common.Address
+	messengerABI     *abi.ABI
+
 	messageQueueAddress common.Address
 	messageQueueABI     *abi.ABI
 
@@ -49,12 +59,10 @@ type L1WatcherClient struct {
 	processedMsgHeight uint64
 	// The height of the block that the watcher has retrieved header rlp
 	processedBlockHeight uint64
-
-	metrics *l1WatcherMetrics
 }
 
 // NewL1WatcherClient returns a new instance of L1WatcherClient.
-func NewL1WatcherClient(ctx context.Context, client *ethclient.Client, startHeight uint64, confirmations rpc.BlockNumber, messageQueueAddress, scrollChainAddress common.Address, db *gorm.DB, reg prometheus.Registerer) *L1WatcherClient {
+func NewL1WatcherClient(ctx context.Context, client *ethclient.Client, startHeight uint64, confirmations rpc.BlockNumber, messengerAddress, messageQueueAddress, scrollChainAddress common.Address, db *gorm.DB) *L1WatcherClient {
 	l1MessageOrm := orm.NewL1Message(db)
 	savedHeight, err := l1MessageOrm.GetLayer1LatestWatchedHeight()
 	if err != nil {
@@ -83,6 +91,9 @@ func NewL1WatcherClient(ctx context.Context, client *ethclient.Client, startHeig
 		batchOrm:      orm.NewBatch(db),
 		confirmations: confirmations,
 
+		messengerAddress: messengerAddress,
+		messengerABI:     bridgeAbi.L1ScrollMessengerABI,
+
 		messageQueueAddress: messageQueueAddress,
 		messageQueueABI:     bridgeAbi.L1MessageQueueABI,
 
@@ -91,7 +102,6 @@ func NewL1WatcherClient(ctx context.Context, client *ethclient.Client, startHeig
 
 		processedMsgHeight:   uint64(savedHeight),
 		processedBlockHeight: savedL1BlockHeight,
-		metrics:              initL1WatcherMetrics(reg),
 	}
 }
 
@@ -115,7 +125,6 @@ func (w *L1WatcherClient) SetConfirmations(confirmations rpc.BlockNumber) {
 
 // FetchBlockHeader pull latest L1 blocks and save in DB
 func (w *L1WatcherClient) FetchBlockHeader(blockHeight uint64) error {
-	w.metrics.l1WatcherFetchBlockHeaderTotal.Inc()
 	fromBlock := int64(w.processedBlockHeight) + 1
 	toBlock := int64(blockHeight)
 	if toBlock < fromBlock {
@@ -162,7 +171,6 @@ func (w *L1WatcherClient) FetchBlockHeader(blockHeight uint64) error {
 
 	// update processed height
 	w.processedBlockHeight = uint64(toBlock)
-	w.metrics.l1WatcherFetchBlockHeaderProcessedBlockHeight.Set(float64(w.processedBlockHeight))
 	return nil
 }
 
@@ -181,7 +189,6 @@ func (w *L1WatcherClient) FetchContractEvent() error {
 	toBlock := int64(blockHeight)
 
 	for from := fromBlock; from <= toBlock; from += contractEventsBlocksFetchLimit {
-		w.metrics.l1WatcherFetchContractEventTotal.Inc()
 		to := from + contractEventsBlocksFetchLimit - 1
 
 		if to > toBlock {
@@ -193,15 +200,18 @@ func (w *L1WatcherClient) FetchContractEvent() error {
 			FromBlock: big.NewInt(from), // inclusive
 			ToBlock:   big.NewInt(to),   // inclusive
 			Addresses: []common.Address{
+				w.messengerAddress,
 				w.scrollChainAddress,
 				w.messageQueueAddress,
 			},
 			Topics: make([][]common.Hash, 1),
 		}
-		query.Topics[0] = make([]common.Hash, 3)
+		query.Topics[0] = make([]common.Hash, 5)
 		query.Topics[0][0] = bridgeAbi.L1QueueTransactionEventSignature
-		query.Topics[0][1] = bridgeAbi.L1CommitBatchEventSignature
-		query.Topics[0][2] = bridgeAbi.L1FinalizeBatchEventSignature
+		query.Topics[0][1] = bridgeAbi.L1RelayedMessageEventSignature
+		query.Topics[0][2] = bridgeAbi.L1FailedRelayedMessageEventSignature
+		query.Topics[0][3] = bridgeAbi.L1CommitBatchEventSignature
+		query.Topics[0][4] = bridgeAbi.L1FinalizeBatchEventSignature
 
 		logs, err := w.client.FilterLogs(w.ctx, query)
 		if err != nil {
@@ -210,10 +220,9 @@ func (w *L1WatcherClient) FetchContractEvent() error {
 		}
 		if len(logs) == 0 {
 			w.processedMsgHeight = uint64(to)
-			w.metrics.l1WatcherFetchContractEventProcessedBlockHeight.Set(float64(to))
+			bridgeL1MsgsSyncHeightGauge.Update(to)
 			continue
 		}
-
 		log.Info("Received new L1 events", "fromBlock", from, "toBlock", to, "cnt", len(logs))
 
 		sentMessageEvents, rollupEvents, err := w.parseBridgeEventLogs(logs)
@@ -223,8 +232,8 @@ func (w *L1WatcherClient) FetchContractEvent() error {
 		}
 		sentMessageCount := int64(len(sentMessageEvents))
 		rollupEventCount := int64(len(rollupEvents))
-		w.metrics.l1WatcherFetchContractEventSentEventsTotal.Add(float64(sentMessageCount))
-		w.metrics.l1WatcherFetchContractEventRollupEventsTotal.Add(float64(rollupEventCount))
+		bridgeL1MsgsSentEventsTotalCounter.Inc(sentMessageCount)
+		bridgeL1MsgsRollupEventsTotalCounter.Inc(rollupEventCount)
 		log.Info("L1 events types", "SentMessageCount", sentMessageCount, "RollupEventCount", rollupEventCount)
 
 		// use rollup event to update rollup results db status
@@ -264,8 +273,7 @@ func (w *L1WatcherClient) FetchContractEvent() error {
 		}
 
 		w.processedMsgHeight = uint64(to)
-		w.metrics.l1WatcherFetchContractEventSuccessTotal.Inc()
-		w.metrics.l1WatcherFetchContractEventProcessedBlockHeight.Set(float64(w.processedMsgHeight))
+		bridgeL1MsgsSyncHeightGauge.Update(to)
 	}
 
 	return nil

bridge/internal/controller/watcher/l1_watcher_test.go

@@ -20,9 +20,9 @@ import (
 	"scroll-tech/common/database"
 	commonTypes "scroll-tech/common/types"
 
-	bridgeAbi "scroll-tech/rollup/abi"
-	"scroll-tech/rollup/internal/orm"
-	"scroll-tech/rollup/internal/utils"
+	bridgeAbi "scroll-tech/bridge/abi"
+	"scroll-tech/bridge/internal/orm"
+	"scroll-tech/bridge/internal/utils"
 )
 
 func setupL1Watcher(t *testing.T) (*L1WatcherClient, *gorm.DB) {
@@ -30,7 +30,7 @@ func setupL1Watcher(t *testing.T) (*L1WatcherClient, *gorm.DB) {
 	client, err := ethclient.Dial(base.L1gethImg.Endpoint())
 	assert.NoError(t, err)
 	l1Cfg := cfg.L1Config
-	watcher := NewL1WatcherClient(context.Background(), client, l1Cfg.StartHeight, l1Cfg.Confirmations, l1Cfg.L1MessageQueueAddress, l1Cfg.RelayerConfig.RollupContractAddress, db, nil)
+	watcher := NewL1WatcherClient(context.Background(), client, l1Cfg.StartHeight, l1Cfg.Confirmations, l1Cfg.L1MessengerAddress, l1Cfg.L1MessageQueueAddress, l1Cfg.RelayerConfig.RollupContractAddress, db)
 	assert.NoError(t, watcher.FetchContractEvent())
 	return watcher, db
 }

bridge/internal/controller/watcher/l2_watcher.go

@@ -5,7 +5,6 @@ import (
 	"fmt"
 	"math/big"
 
-	"github.com/prometheus/client_golang/prometheus"
 	geth "github.com/scroll-tech/go-ethereum"
 	"github.com/scroll-tech/go-ethereum/accounts/abi"
 	"github.com/scroll-tech/go-ethereum/common"
@@ -14,14 +13,24 @@ import (
 	"github.com/scroll-tech/go-ethereum/ethclient"
 	"github.com/scroll-tech/go-ethereum/event"
 	"github.com/scroll-tech/go-ethereum/log"
+	gethMetrics "github.com/scroll-tech/go-ethereum/metrics"
 	"github.com/scroll-tech/go-ethereum/rpc"
 	"gorm.io/gorm"
 
+	"scroll-tech/common/metrics"
 	"scroll-tech/common/types"
 
-	bridgeAbi "scroll-tech/rollup/abi"
-	"scroll-tech/rollup/internal/orm"
-	"scroll-tech/rollup/internal/utils"
+	bridgeAbi "scroll-tech/bridge/abi"
+	"scroll-tech/bridge/internal/orm"
+	"scroll-tech/bridge/internal/utils"
+)
+
+// Metrics
+var (
+	bridgeL2MsgsSyncHeightGauge           = gethMetrics.NewRegisteredGauge("bridge/l2/msgs/sync/height", metrics.ScrollRegistry)
+	bridgeL2BlocksFetchedHeightGauge      = gethMetrics.NewRegisteredGauge("bridge/l2/blocks/fetched/height", metrics.ScrollRegistry)
+	bridgeL2BlocksFetchedGapGauge         = gethMetrics.NewRegisteredGauge("bridge/l2/blocks/fetched/gap", metrics.ScrollRegistry)
+	bridgeL2MsgsRelayedEventsTotalCounter = gethMetrics.NewRegisteredCounter("bridge/l2/msgs/relayed/events/total", metrics.ScrollRegistry)
 )
 
 // L2WatcherClient provide APIs which support others to subscribe to various event from l2geth
@@ -47,12 +56,10 @@ type L2WatcherClient struct {
 	processedMsgHeight uint64
 
 	stopped uint64
-
-	metrics *l2WatcherMetrics
 }
 
 // NewL2WatcherClient take a l2geth instance to generate a l2watcherclient instance
-func NewL2WatcherClient(ctx context.Context, client *ethclient.Client, confirmations rpc.BlockNumber, messengerAddress, messageQueueAddress common.Address, withdrawTrieRootSlot common.Hash, db *gorm.DB, reg prometheus.Registerer) *L2WatcherClient {
+func NewL2WatcherClient(ctx context.Context, client *ethclient.Client, confirmations rpc.BlockNumber, messengerAddress, messageQueueAddress common.Address, withdrawTrieRootSlot common.Hash, db *gorm.DB) *L2WatcherClient {
 	l1MessageOrm := orm.NewL1Message(db)
 	var savedHeight uint64
 	l1msg, err := l1MessageOrm.GetLayer1LatestMessageWithLayer2Hash()
@@ -86,7 +93,6 @@ func NewL2WatcherClient(ctx context.Context, client *ethclient.Client, confirmat
 		withdrawTrieRootSlot: withdrawTrieRootSlot,
 
 		stopped: 0,
-		metrics: initL2WatcherMetrics(reg),
 	}
 
 	return &w
@@ -96,7 +102,6 @@ const blockTracesFetchLimit = uint64(10)
 
 // TryFetchRunningMissingBlocks attempts to fetch and store block traces for any missing blocks.
 func (w *L2WatcherClient) TryFetchRunningMissingBlocks(blockHeight uint64) {
-	w.metrics.fetchRunningMissingBlocksTotal.Inc()
 	heightInDB, err := w.l2BlockOrm.GetL2BlocksLatestHeight(w.ctx)
 	if err != nil {
 		log.Error("failed to GetL2BlocksLatestHeight", "err", err)
@@ -115,8 +120,8 @@ func (w *L2WatcherClient) TryFetchRunningMissingBlocks(blockHeight uint64) {
 			log.Error("fail to getAndStoreBlockTraces", "from", from, "to", to, "err", err)
 			return
 		}
-		w.metrics.fetchRunningMissingBlocksHeight.Set(float64(to))
-		w.metrics.rollupL2BlocksFetchedGap.Set(float64(blockHeight - to))
+		bridgeL2BlocksFetchedHeightGauge.Update(int64(to))
+		bridgeL2BlocksFetchedGapGauge.Update(int64(blockHeight - to))
 	}
 }
 
@@ -194,7 +199,6 @@ func (w *L2WatcherClient) FetchContractEvent() {
 		log.Info("l2 watcher fetchContractEvent", "w.processedMsgHeight", w.processedMsgHeight)
 	}()
 
-	w.metrics.fetchContractEventTotal.Inc()
 	blockHeight, err := utils.GetLatestConfirmedBlockNumber(w.ctx, w.Client, w.confirmations)
 	if err != nil {
 		log.Error("failed to get block number", "err", err)
@@ -234,7 +238,7 @@ func (w *L2WatcherClient) FetchContractEvent() {
 		}
 		if len(logs) == 0 {
 			w.processedMsgHeight = uint64(to)
-			w.metrics.fetchContractEventHeight.Set(float64(to))
+			bridgeL2MsgsSyncHeightGauge.Update(to)
 			continue
 		}
 		log.Info("received new L2 messages", "fromBlock", from, "toBlock", to, "cnt", len(logs))
@@ -246,7 +250,7 @@ func (w *L2WatcherClient) FetchContractEvent() {
 		}
 
 		relayedMessageCount := int64(len(relayedMessageEvents))
-		w.metrics.rollupL2MsgsRelayedEventsTotal.Add(float64(relayedMessageCount))
+		bridgeL2MsgsRelayedEventsTotalCounter.Inc(relayedMessageCount)
 		log.Info("L2 events types", "RelayedMessageCount", relayedMessageCount)
 
 		// Update relayed message first to make sure we don't forget to update submited message.
@@ -265,7 +269,7 @@ func (w *L2WatcherClient) FetchContractEvent() {
 		}
 
 		w.processedMsgHeight = uint64(to)
-		w.metrics.fetchContractEventHeight.Set(float64(to))
+		bridgeL2MsgsSyncHeightGauge.Update(to)
 	}
 }
 

bridge/internal/controller/watcher/l2_watcher_test.go

@@ -24,18 +24,17 @@ import (
 	"scroll-tech/common/database"
 	cutils "scroll-tech/common/utils"
 
-	bridgeAbi "scroll-tech/rollup/abi"
-	"scroll-tech/rollup/internal/controller/sender"
-	"scroll-tech/rollup/internal/orm"
-	"scroll-tech/rollup/internal/utils"
-	"scroll-tech/rollup/mock_bridge"
+	bridgeAbi "scroll-tech/bridge/abi"
+	"scroll-tech/bridge/internal/controller/sender"
+	"scroll-tech/bridge/internal/orm"
+	"scroll-tech/bridge/internal/utils"
+	"scroll-tech/bridge/mock_bridge"
 )
 
 func setupL2Watcher(t *testing.T) (*L2WatcherClient, *gorm.DB) {
 	db := setupDB(t)
 	l2cfg := cfg.L2Config
-	watcher := NewL2WatcherClient(context.Background(), l2Cli, l2cfg.Confirmations, l2cfg.L2MessengerAddress,
-		l2cfg.L2MessageQueueAddress, l2cfg.WithdrawTrieRootSlot, db, nil)
+	watcher := NewL2WatcherClient(context.Background(), l2Cli, l2cfg.Confirmations, l2cfg.L2MessengerAddress, l2cfg.L2MessageQueueAddress, l2cfg.WithdrawTrieRootSlot, db)
 	return watcher, db
 }
 
@@ -51,7 +50,7 @@ func testCreateNewWatcherAndStop(t *testing.T) {
 
 	l1cfg := cfg.L1Config
 	l1cfg.RelayerConfig.SenderConfig.Confirmations = rpc.LatestBlockNumber
-	newSender, err := sender.NewSender(context.Background(), l1cfg.RelayerConfig.SenderConfig, l1cfg.RelayerConfig.GasOracleSenderPrivateKey, "test", "test", nil)
+	newSender, err := sender.NewSender(context.Background(), l1cfg.RelayerConfig.SenderConfig, l1cfg.RelayerConfig.MessageSenderPrivateKey)
 	assert.NoError(t, err)
 
 	// Create several transactions and commit to block
@@ -72,7 +71,7 @@ func testFetchRunningMissingBlocks(t *testing.T) {
 	_, db := setupL2Watcher(t)
 	defer database.CloseDB(db)
 
-	auth := prepareAuth(t, l2Cli, cfg.L2Config.RelayerConfig.GasOracleSenderPrivateKey)
+	auth := prepareAuth(t, l2Cli, cfg.L2Config.RelayerConfig.MessageSenderPrivateKey)
 
 	// deploy mock bridge
 	_, tx, _, err := mock_bridge.DeployMockBridgeL2(auth, l2Cli)
@@ -96,7 +95,7 @@ func testFetchRunningMissingBlocks(t *testing.T) {
 
 func prepareWatcherClient(l2Cli *ethclient.Client, db *gorm.DB, contractAddr common.Address) *L2WatcherClient {
 	confirmations := rpc.LatestBlockNumber
-	return NewL2WatcherClient(context.Background(), l2Cli, confirmations, contractAddr, contractAddr, common.Hash{}, db, nil)
+	return NewL2WatcherClient(context.Background(), l2Cli, confirmations, contractAddr, contractAddr, common.Hash{}, db)
 }
 
 func prepareAuth(t *testing.T, l2Cli *ethclient.Client, privateKey *ecdsa.PrivateKey) *bind.TransactOpts {

bridge/internal/controller/watcher/watcher_test.go

@@ -15,7 +15,7 @@ import (
 
 	"scroll-tech/database/migrate"
 
-	"scroll-tech/rollup/internal/config"
+	"scroll-tech/bridge/internal/config"
 )
 
 var (

bridge/internal/orm/batch.go

@@ -53,11 +53,9 @@ type Batch struct {
 	OracleTxHash string `json:"oracle_tx_hash" gorm:"column:oracle_tx_hash;default:NULL"`
 
 	// metadata
-	TotalL1CommitGas          uint64         `json:"total_l1_commit_gas" gorm:"column:total_l1_commit_gas;default:0"`
-	TotalL1CommitCalldataSize uint32         `json:"total_l1_commit_calldata_size" gorm:"column:total_l1_commit_calldata_size;default:0"`
-	CreatedAt                 time.Time      `json:"created_at" gorm:"column:created_at"`
-	UpdatedAt                 time.Time      `json:"updated_at" gorm:"column:updated_at"`
-	DeletedAt                 gorm.DeletedAt `json:"deleted_at" gorm:"column:deleted_at;default:NULL"`
+	CreatedAt time.Time      `json:"created_at" gorm:"column:created_at"`
+	UpdatedAt time.Time      `json:"updated_at" gorm:"column:updated_at"`
+	DeletedAt gorm.DeletedAt `json:"deleted_at" gorm:"column:deleted_at;default:NULL"`
 }
 
 // NewBatch creates a new Batch database instance.
@@ -144,21 +142,6 @@ func (o *Batch) GetLatestBatch(ctx context.Context) (*Batch, error) {
 	return &latestBatch, nil
 }
 
-// GetFirstUnbatchedChunkIndex retrieves the first unbatched chunk index.
-func (o *Batch) GetFirstUnbatchedChunkIndex(ctx context.Context) (uint64, error) {
-	// Get the latest batch
-	latestBatch, err := o.GetLatestBatch(ctx)
-	if err != nil {
-		return 0, fmt.Errorf("Chunk.GetChunkedBlockHeight error: %w", err)
-	}
-	// if parentBatch==nil then err==gorm.ErrRecordNotFound,
-	// which means there is not batched chunk yet, thus returns 0
-	if latestBatch == nil {
-		return 0, nil
-	}
-	return latestBatch.EndChunkIndex + 1, nil
-}
-
 // GetRollupStatusByHashList retrieves the rollup statuses for a list of batch hashes.
 func (o *Batch) GetRollupStatusByHashList(ctx context.Context, hashes []string) ([]types.RollupStatus, error) {
 	if len(hashes) == 0 {
@@ -226,7 +209,7 @@ func (o *Batch) GetBatchByIndex(ctx context.Context, index uint64) (*Batch, erro
 }
 
 // InsertBatch inserts a new batch into the database.
-func (o *Batch) InsertBatch(ctx context.Context, chunks []*types.Chunk, batchMeta *types.BatchMeta, dbTX ...*gorm.DB) (*Batch, error) {
+func (o *Batch) InsertBatch(ctx context.Context, startChunkIndex, endChunkIndex uint64, startChunkHash, endChunkHash string, chunks []*types.Chunk, dbTX ...*gorm.DB) (*Batch, error) {
 	if len(chunks) == 0 {
 		return nil, errors.New("invalid args")
 	}
@@ -272,22 +255,20 @@ func (o *Batch) InsertBatch(ctx context.Context, chunks []*types.Chunk, batchMet
 	lastChunkBlockNum := len(chunks[numChunks-1].Blocks)
 
 	newBatch := Batch{
-		Index:                     batchIndex,
-		Hash:                      batchHeader.Hash().Hex(),
-		StartChunkHash:            batchMeta.StartChunkHash,
-		StartChunkIndex:           batchMeta.StartChunkIndex,
-		EndChunkHash:              batchMeta.EndChunkHash,
-		EndChunkIndex:             batchMeta.EndChunkIndex,
-		StateRoot:                 chunks[numChunks-1].Blocks[lastChunkBlockNum-1].Header.Root.Hex(),
-		WithdrawRoot:              chunks[numChunks-1].Blocks[lastChunkBlockNum-1].WithdrawRoot.Hex(),
-		ParentBatchHash:           parentBatchHash.Hex(),
-		BatchHeader:               batchHeader.Encode(),
-		ChunkProofsStatus:         int16(types.ChunkProofsStatusPending),
-		ProvingStatus:             int16(types.ProvingTaskUnassigned),
-		RollupStatus:              int16(types.RollupPending),
-		OracleStatus:              int16(types.GasOraclePending),
-		TotalL1CommitGas:          batchMeta.TotalL1CommitGas,
-		TotalL1CommitCalldataSize: batchMeta.TotalL1CommitCalldataSize,
+		Index:             batchIndex,
+		Hash:              batchHeader.Hash().Hex(),
+		StartChunkHash:    startChunkHash,
+		StartChunkIndex:   startChunkIndex,
+		EndChunkHash:      endChunkHash,
+		EndChunkIndex:     endChunkIndex,
+		StateRoot:         chunks[numChunks-1].Blocks[lastChunkBlockNum-1].Header.Root.Hex(),
+		WithdrawRoot:      chunks[numChunks-1].Blocks[lastChunkBlockNum-1].WithdrawRoot.Hex(),
+		ParentBatchHash:   parentBatchHash.Hex(),
+		BatchHeader:       batchHeader.Encode(),
+		ChunkProofsStatus: int16(types.ChunkProofsStatusPending),
+		ProvingStatus:     int16(types.ProvingTaskUnassigned),
+		RollupStatus:      int16(types.RollupPending),
+		OracleStatus:      int16(types.GasOraclePending),
 	}
 
 	db := o.db
@@ -330,7 +311,7 @@ func (o *Batch) UpdateProvingStatus(ctx context.Context, hash string, status typ
 		updateFields["prover_assigned_at"] = time.Now()
 	case types.ProvingTaskUnassigned:
 		updateFields["prover_assigned_at"] = nil
-	case types.ProvingTaskVerified:
+	case types.ProvingTaskProved, types.ProvingTaskVerified:
 		updateFields["proved_at"] = time.Now()
 	}
 

bridge/internal/orm/chunk.go

@@ -87,6 +87,20 @@ func (o *Chunk) GetChunksInRange(ctx context.Context, startIndex uint64, endInde
 	return chunks, nil
 }
 
+// GetUnbatchedChunks retrieves unbatched chunks from the database.
+func (o *Chunk) GetUnbatchedChunks(ctx context.Context) ([]*Chunk, error) {
+	db := o.db.WithContext(ctx)
+	db = db.Model(&Chunk{})
+	db = db.Where("batch_hash IS NULL")
+	db = db.Order("index asc")
+
+	var chunks []*Chunk
+	if err := db.Find(&chunks).Error; err != nil {
+		return nil, fmt.Errorf("Chunk.GetUnbatchedChunks error: %w", err)
+	}
+	return chunks, nil
+}
+
 // GetLatestChunk retrieves the latest chunk from the database.
 func (o *Chunk) GetLatestChunk(ctx context.Context) (*Chunk, error) {
 	db := o.db.WithContext(ctx)
@@ -100,40 +114,6 @@ func (o *Chunk) GetLatestChunk(ctx context.Context) (*Chunk, error) {
 	return &latestChunk, nil
 }
 
-// GetUnchunkedBlockHeight retrieves the first unchunked block number.
-func (o *Chunk) GetUnchunkedBlockHeight(ctx context.Context) (uint64, error) {
-	// Get the latest chunk
-	latestChunk, err := o.GetLatestChunk(ctx)
-	if err != nil {
-		if errors.Is(err, gorm.ErrRecordNotFound) {
-			// if there is no chunk, return block number 1,
-			// because no need to chunk genesis block number
-			return 1, nil
-		}
-		return 0, fmt.Errorf("Chunk.GetChunkedBlockHeight error: %w", err)
-	}
-	return latestChunk.EndBlockNumber + 1, nil
-}
-
-// GetChunksGEIndex retrieves chunks that have a chunk index greater than the or equal to the given index.
-// The returned chunks are sorted in ascending order by their index.
-func (o *Chunk) GetChunksGEIndex(ctx context.Context, index uint64, limit int) ([]*Chunk, error) {
-	db := o.db.WithContext(ctx)
-	db = db.Model(&Chunk{})
-	db = db.Where("index >= ?", index)
-	db = db.Order("index ASC")
-
-	if limit > 0 {
-		db = db.Limit(limit)
-	}
-
-	var chunks []*Chunk
-	if err := db.Find(&chunks).Error; err != nil {
-		return nil, fmt.Errorf("Chunk.GetChunksGEIndex error: %w", err)
-	}
-	return chunks, nil
-}
-
 // InsertChunk inserts a new chunk into the database.
 func (o *Chunk) InsertChunk(ctx context.Context, chunk *types.Chunk, dbTX ...*gorm.DB) (*Chunk, error) {
 	if chunk == nil || len(chunk.Blocks) == 0 {
@@ -171,7 +151,7 @@ func (o *Chunk) InsertChunk(ctx context.Context, chunk *types.Chunk, dbTX ...*go
 	var totalL1CommitCalldataSize uint64
 	for _, block := range chunk.Blocks {
 		totalL2TxGas += block.Header.GasUsed
-		totalL2TxNum += block.NumL2Transactions()
+		totalL2TxNum += block.L2TxsNum()
 		totalL1CommitCalldataSize += block.EstimateL1CommitCalldataSize()
 	}
 
@@ -221,7 +201,7 @@ func (o *Chunk) UpdateProvingStatus(ctx context.Context, hash string, status typ
 		updateFields["prover_assigned_at"] = time.Now()
 	case types.ProvingTaskUnassigned:
 		updateFields["prover_assigned_at"] = nil
-	case types.ProvingTaskVerified:
+	case types.ProvingTaskProved, types.ProvingTaskVerified:
 		updateFields["proved_at"] = time.Now()
 	}
 

bridge/internal/orm/l2_block.go

@@ -64,23 +64,18 @@ func (o *L2Block) GetL2BlocksLatestHeight(ctx context.Context) (uint64, error) {
 	return maxNumber, nil
 }
 
-// GetL2WrappedBlocksGEHeight retrieves L2 blocks that have a block number greater than or equal to the given height.
-// The blocks are converted into WrappedBlock format for output.
+// GetUnchunkedBlocks get the l2 blocks that have not been put into a chunk.
 // The returned blocks are sorted in ascending order by their block number.
-func (o *L2Block) GetL2WrappedBlocksGEHeight(ctx context.Context, height uint64, limit int) ([]*types.WrappedBlock, error) {
+func (o *L2Block) GetUnchunkedBlocks(ctx context.Context) ([]*types.WrappedBlock, error) {
 	db := o.db.WithContext(ctx)
 	db = db.Model(&L2Block{})
 	db = db.Select("header, transactions, withdraw_root, row_consumption")
-	db = db.Where("number >= ?", height)
+	db = db.Where("chunk_hash IS NULL")
 	db = db.Order("number ASC")
 
-	if limit > 0 {
-		db = db.Limit(limit)
-	}
-
 	var l2Blocks []L2Block
 	if err := db.Find(&l2Blocks).Error; err != nil {
-		return nil, fmt.Errorf("L2Block.GetL2WrappedBlocksGEHeight error: %w", err)
+		return nil, fmt.Errorf("L2Block.GetUnchunkedBlocks error: %w", err)
 	}
 
 	var wrappedBlocks []*types.WrappedBlock
@@ -88,18 +83,18 @@ func (o *L2Block) GetL2WrappedBlocksGEHeight(ctx context.Context, height uint64,
 		var wrappedBlock types.WrappedBlock
 
 		if err := json.Unmarshal([]byte(v.Transactions), &wrappedBlock.Transactions); err != nil {
-			return nil, fmt.Errorf("L2Block.GetL2WrappedBlocksGEHeight error: %w", err)
+			return nil, fmt.Errorf("L2Block.GetUnchunkedBlocks error: %w", err)
 		}
 
 		wrappedBlock.Header = &gethTypes.Header{}
 		if err := json.Unmarshal([]byte(v.Header), wrappedBlock.Header); err != nil {
-			return nil, fmt.Errorf("L2Block.GetL2WrappedBlocksGEHeight error: %w", err)
+			return nil, fmt.Errorf("L2Block.GetUnchunkedBlocks error: %w", err)
 		}
 
 		wrappedBlock.WithdrawRoot = common.HexToHash(v.WithdrawRoot)
 
 		if err := json.Unmarshal([]byte(v.RowConsumption), &wrappedBlock.RowConsumption); err != nil {
-			return nil, fmt.Errorf("L2Block.GetL2WrappedBlocksGEHeight error: %w", err)
+			return nil, fmt.Errorf("L2Block.GetUnchunkedBlocks error: %w", err)
 		}
 
 		wrappedBlocks = append(wrappedBlocks, &wrappedBlock)

bridge/internal/orm/orm_test.go

@@ -101,26 +101,25 @@ func TestL2BlockOrm(t *testing.T) {
 	assert.NoError(t, err)
 	assert.Equal(t, uint64(3), height)
 
-	blocks, err := l2BlockOrm.GetL2Blocks(context.Background(), map[string]interface{}{}, []string{}, 0)
+	blocks, err := l2BlockOrm.GetUnchunkedBlocks(context.Background())
 	assert.NoError(t, err)
 	assert.Len(t, blocks, 2)
-	assert.Equal(t, "", blocks[0].ChunkHash)
-	assert.Equal(t, "", blocks[1].ChunkHash)
+	assert.Equal(t, wrappedBlock1, blocks[0])
+	assert.Equal(t, wrappedBlock2, blocks[1])
 
-	wrappedBlocks, err := l2BlockOrm.GetL2BlocksInRange(context.Background(), 2, 3)
+	blocks, err = l2BlockOrm.GetL2BlocksInRange(context.Background(), 2, 3)
 	assert.NoError(t, err)
 	assert.Len(t, blocks, 2)
-	assert.Equal(t, wrappedBlock1, wrappedBlocks[0])
-	assert.Equal(t, wrappedBlock2, wrappedBlocks[1])
+	assert.Equal(t, wrappedBlock1, blocks[0])
+	assert.Equal(t, wrappedBlock2, blocks[1])
 
 	err = l2BlockOrm.UpdateChunkHashInRange(context.Background(), 2, 2, "test hash")
 	assert.NoError(t, err)
 
-	blocks, err = l2BlockOrm.GetL2Blocks(context.Background(), map[string]interface{}{}, []string{}, 0)
+	blocks, err = l2BlockOrm.GetUnchunkedBlocks(context.Background())
 	assert.NoError(t, err)
-	assert.Len(t, blocks, 2)
-	assert.Equal(t, "test hash", blocks[0].ChunkHash)
-	assert.Equal(t, "", blocks[1].ChunkHash)
+	assert.Len(t, blocks, 1)
+	assert.Equal(t, wrappedBlock2, blocks[0])
 }
 
 func TestChunkOrm(t *testing.T) {
@@ -136,13 +135,11 @@ func TestChunkOrm(t *testing.T) {
 	assert.NoError(t, err)
 	assert.Equal(t, dbChunk2.Hash, chunkHash2.Hex())
 
-	chunks, err := chunkOrm.GetChunksGEIndex(context.Background(), 0, 0)
+	chunks, err := chunkOrm.GetUnbatchedChunks(context.Background())
 	assert.NoError(t, err)
 	assert.Len(t, chunks, 2)
 	assert.Equal(t, chunkHash1.Hex(), chunks[0].Hash)
 	assert.Equal(t, chunkHash2.Hex(), chunks[1].Hash)
-	assert.Equal(t, "", chunks[0].BatchHash)
-	assert.Equal(t, "", chunks[1].BatchHash)
 
 	err = chunkOrm.UpdateProvingStatus(context.Background(), chunkHash1.Hex(), types.ProvingTaskVerified)
 	assert.NoError(t, err)
@@ -159,13 +156,9 @@ func TestChunkOrm(t *testing.T) {
 
 	err = chunkOrm.UpdateBatchHashInRange(context.Background(), 0, 0, "test hash")
 	assert.NoError(t, err)
-	chunks, err = chunkOrm.GetChunksGEIndex(context.Background(), 0, 0)
+	chunks, err = chunkOrm.GetUnbatchedChunks(context.Background())
 	assert.NoError(t, err)
-	assert.Len(t, chunks, 2)
-	assert.Equal(t, chunkHash1.Hex(), chunks[0].Hash)
-	assert.Equal(t, chunkHash2.Hex(), chunks[1].Hash)
-	assert.Equal(t, "test hash", chunks[0].BatchHash)
-	assert.Equal(t, "", chunks[1].BatchHash)
+	assert.Len(t, chunks, 1)
 }
 
 func TestBatchOrm(t *testing.T) {
@@ -173,13 +166,7 @@ func TestBatchOrm(t *testing.T) {
 	assert.NoError(t, err)
 	assert.NoError(t, migrate.ResetDB(sqlDB))
 
-	batchMeta1 := &types.BatchMeta{
-		StartChunkIndex: 0,
-		StartChunkHash:  chunkHash1.Hex(),
-		EndChunkIndex:   0,
-		EndChunkHash:    chunkHash1.Hex(),
-	}
-	batch1, err := batchOrm.InsertBatch(context.Background(), []*types.Chunk{chunk1}, batchMeta1)
+	batch1, err := batchOrm.InsertBatch(context.Background(), 0, 0, chunkHash1.Hex(), chunkHash1.Hex(), []*types.Chunk{chunk1})
 	assert.NoError(t, err)
 	hash1 := batch1.Hash
 
@@ -190,13 +177,7 @@ func TestBatchOrm(t *testing.T) {
 	batchHash1 := batchHeader1.Hash().Hex()
 	assert.Equal(t, hash1, batchHash1)
 
-	batchMeta2 := &types.BatchMeta{
-		StartChunkIndex: 1,
-		StartChunkHash:  chunkHash2.Hex(),
-		EndChunkIndex:   1,
-		EndChunkHash:    chunkHash2.Hex(),
-	}
-	batch2, err := batchOrm.InsertBatch(context.Background(), []*types.Chunk{chunk2}, batchMeta2)
+	batch2, err := batchOrm.InsertBatch(context.Background(), 1, 1, chunkHash2.Hex(), chunkHash2.Hex(), []*types.Chunk{chunk2})
 	assert.NoError(t, err)
 	hash2 := batch2.Hash
 

bridge/internal/utils/utils.go

@@ -9,7 +9,7 @@ import (
 	"github.com/scroll-tech/go-ethereum/core/types"
 	"github.com/scroll-tech/go-ethereum/crypto"
 
-	bridgeAbi "scroll-tech/rollup/abi"
+	bridgeAbi "scroll-tech/bridge/abi"
 )
 
 // Keccak2 compute the keccack256 of two concatenations of bytes32

bridge/tests/bridge_test.go

@@ -2,11 +2,8 @@ package tests
 
 import (
 	"context"
-	"net/http"
-	"strings"
 	"testing"
 
-	"github.com/gin-gonic/gin"
 	"github.com/scroll-tech/go-ethereum/accounts/abi/bind"
 	"github.com/scroll-tech/go-ethereum/common"
 	"github.com/scroll-tech/go-ethereum/core/types"
@@ -16,17 +13,16 @@ import (
 
 	"scroll-tech/common/database"
 	"scroll-tech/common/docker"
-	"scroll-tech/common/utils"
 
 	"scroll-tech/database/migrate"
 
-	bcmd "scroll-tech/rollup/cmd"
-	"scroll-tech/rollup/mock_bridge"
+	bcmd "scroll-tech/bridge/cmd"
+	"scroll-tech/bridge/mock_bridge"
 )
 
 var (
 	base      *docker.App
-	rollupApp *bcmd.MockApp
+	bridgeApp *bcmd.MockApp
 
 	// clients
 	l1Client *ethclient.Client
@@ -36,9 +32,17 @@ var (
 	l1Auth *bind.TransactOpts
 	l2Auth *bind.TransactOpts
 
+	// l1 messenger contract
+	l1MessengerInstance *mock_bridge.MockBridgeL1
+	l1MessengerAddress  common.Address
+
 	// l1 rollup contract
 	scrollChainInstance *mock_bridge.MockBridgeL1
 	scrollChainAddress  common.Address
+
+	// l2 messenger contract
+	l2MessengerInstance *mock_bridge.MockBridgeL2
+	l2MessengerAddress  common.Address
 )
 
 func setupDB(t *testing.T) *gorm.DB {
@@ -58,8 +62,8 @@ func setupDB(t *testing.T) *gorm.DB {
 
 func TestMain(m *testing.M) {
 	base = docker.NewDockerApp()
-	rollupApp = bcmd.NewRollupApp(base, "../conf/config.json")
-	defer rollupApp.Free()
+	bridgeApp = bcmd.NewBridgeApp(base, "../conf/config.json")
+	defer bridgeApp.Free()
 	defer base.Free()
 	m.Run()
 }
@@ -73,57 +77,57 @@ func setupEnv(t *testing.T) {
 	l2Client, err = base.L2Client()
 	assert.NoError(t, err)
 
-	l1Cfg, l2Cfg := rollupApp.Config.L1Config, rollupApp.Config.L2Config
+	l1Cfg, l2Cfg := bridgeApp.Config.L1Config, bridgeApp.Config.L2Config
 	l1Cfg.Confirmations = 0
 	l1Cfg.RelayerConfig.SenderConfig.Confirmations = 0
 	l2Cfg.Confirmations = 0
 	l2Cfg.RelayerConfig.SenderConfig.Confirmations = 0
 
-	l1Auth, err = bind.NewKeyedTransactorWithChainID(rollupApp.Config.L2Config.RelayerConfig.CommitSenderPrivateKey, base.L1gethImg.ChainID())
+	l1Auth, err = bind.NewKeyedTransactorWithChainID(bridgeApp.Config.L2Config.RelayerConfig.MessageSenderPrivateKey, base.L1gethImg.ChainID())
 	assert.NoError(t, err)
 
-	l2Auth, err = bind.NewKeyedTransactorWithChainID(rollupApp.Config.L1Config.RelayerConfig.GasOracleSenderPrivateKey, base.L2gethImg.ChainID())
+	l2Auth, err = bind.NewKeyedTransactorWithChainID(bridgeApp.Config.L1Config.RelayerConfig.MessageSenderPrivateKey, base.L2gethImg.ChainID())
 	assert.NoError(t, err)
 }
 
-func mockChainMonitorServer(baseURL string) (*http.Server, error) {
-	router := gin.New()
-	r := router.Group("/v1")
-	r.GET("/batch_status", func(ctx *gin.Context) {
-		ctx.JSON(http.StatusOK, struct {
-			ErrCode int    `json:"errcode"`
-			ErrMsg  string `json:"errmsg"`
-			Data    bool   `json:"data"`
-		}{
-			ErrCode: 0,
-			ErrMsg:  "",
-			Data:    true,
-		})
-	})
-	return utils.StartHTTPServer(strings.Split(baseURL, "//")[1], router)
-}
-
 func prepareContracts(t *testing.T) {
 	var err error
 	var tx *types.Transaction
 
+	// L1 messenger contract
+	_, tx, l1MessengerInstance, err = mock_bridge.DeployMockBridgeL1(l1Auth, l1Client)
+	assert.NoError(t, err)
+	l1MessengerAddress, err = bind.WaitDeployed(context.Background(), l1Client, tx)
+	assert.NoError(t, err)
+
 	// L1 ScrolChain contract
 	_, tx, scrollChainInstance, err = mock_bridge.DeployMockBridgeL1(l1Auth, l1Client)
 	assert.NoError(t, err)
 	scrollChainAddress, err = bind.WaitDeployed(context.Background(), l1Client, tx)
 	assert.NoError(t, err)
 
-	l1Config, l2Config := rollupApp.Config.L1Config, rollupApp.Config.L2Config
-	l1Config.ScrollChainContractAddress = scrollChainAddress
+	// L2 messenger contract
+	_, tx, l2MessengerInstance, err = mock_bridge.DeployMockBridgeL2(l2Auth, l2Client)
+	assert.NoError(t, err)
+	l2MessengerAddress, err = bind.WaitDeployed(context.Background(), l2Client, tx)
+	assert.NoError(t, err)
 
+	l1Config, l2Config := bridgeApp.Config.L1Config, bridgeApp.Config.L2Config
+	l1Config.L1MessengerAddress = l1MessengerAddress
+	l1Config.L1MessageQueueAddress = l1MessengerAddress
+	l1Config.ScrollChainContractAddress = scrollChainAddress
+	l1Config.RelayerConfig.MessengerContractAddress = l2MessengerAddress
+	l1Config.RelayerConfig.GasPriceOracleContractAddress = l1MessengerAddress
+
+	l2Config.L2MessengerAddress = l2MessengerAddress
+	l2Config.L2MessageQueueAddress = l2MessengerAddress
+	l2Config.RelayerConfig.MessengerContractAddress = l1MessengerAddress
 	l2Config.RelayerConfig.RollupContractAddress = scrollChainAddress
+	l2Config.RelayerConfig.GasPriceOracleContractAddress = l2MessengerAddress
 }
 
 func TestFunction(t *testing.T) {
 	setupEnv(t)
-	srv, err := mockChainMonitorServer(rollupApp.Config.L2Config.RelayerConfig.ChainMonitor.BaseURL)
-	assert.NoError(t, err)
-	defer srv.Close()
 
 	// process start test
 	t.Run("TestProcessStart", testProcessStart)
@@ -133,6 +137,7 @@ func TestFunction(t *testing.T) {
 	t.Run("TestCommitBatchAndFinalizeBatch", testCommitBatchAndFinalizeBatch)
 
 	// l1 message
+	t.Run("TestRelayL1MessageSucceed", testRelayL1MessageSucceed)
 
 	// l2 message
 	// TODO: add a "user relay l2msg Succeed" test

bridge/tests/gas_oracle_test.go

@@ -12,9 +12,9 @@ import (
 	"scroll-tech/common/database"
 	"scroll-tech/common/types"
 
-	"scroll-tech/rollup/internal/controller/relayer"
-	"scroll-tech/rollup/internal/controller/watcher"
-	"scroll-tech/rollup/internal/orm"
+	"scroll-tech/bridge/internal/controller/relayer"
+	"scroll-tech/bridge/internal/controller/watcher"
+	"scroll-tech/bridge/internal/orm"
 )
 
 func testImportL1GasPrice(t *testing.T) {
@@ -23,16 +23,16 @@ func testImportL1GasPrice(t *testing.T) {
 
 	prepareContracts(t)
 
-	l1Cfg := rollupApp.Config.L1Config
+	l1Cfg := bridgeApp.Config.L1Config
 
 	// Create L1Relayer
-	l1Relayer, err := relayer.NewLayer1Relayer(context.Background(), db, l1Cfg.RelayerConfig, nil)
+	l1Relayer, err := relayer.NewLayer1Relayer(context.Background(), db, l1Cfg.RelayerConfig)
 	assert.NoError(t, err)
 
 	// Create L1Watcher
 	startHeight, err := l1Client.BlockNumber(context.Background())
 	assert.NoError(t, err)
-	l1Watcher := watcher.NewL1WatcherClient(context.Background(), l1Client, startHeight-1, 0, l1Cfg.L1MessageQueueAddress, l1Cfg.ScrollChainContractAddress, db, nil)
+	l1Watcher := watcher.NewL1WatcherClient(context.Background(), l1Client, startHeight-1, 0, l1Cfg.L1MessengerAddress, l1Cfg.L1MessageQueueAddress, l1Cfg.ScrollChainContractAddress, db)
 
 	// fetch new blocks
 	number, err := l1Client.BlockNumber(context.Background())
@@ -66,8 +66,8 @@ func testImportL2GasPrice(t *testing.T) {
 	defer database.CloseDB(db)
 	prepareContracts(t)
 
-	l2Cfg := rollupApp.Config.L2Config
-	l2Relayer, err := relayer.NewLayer2Relayer(context.Background(), l2Client, db, l2Cfg.RelayerConfig, false, nil)
+	l2Cfg := bridgeApp.Config.L2Config
+	l2Relayer, err := relayer.NewLayer2Relayer(context.Background(), l2Client, db, l2Cfg.RelayerConfig, false)
 	assert.NoError(t, err)
 
 	// add fake chunk
@@ -89,14 +89,8 @@ func testImportL2GasPrice(t *testing.T) {
 	chunkHash, err := chunk.Hash(0)
 	assert.NoError(t, err)
 
-	batchMeta := &types.BatchMeta{
-		StartChunkIndex: 0,
-		StartChunkHash:  chunkHash.Hex(),
-		EndChunkIndex:   0,
-		EndChunkHash:    chunkHash.Hex(),
-	}
 	batchOrm := orm.NewBatch(db)
-	_, err = batchOrm.InsertBatch(context.Background(), []*types.Chunk{chunk}, batchMeta)
+	_, err = batchOrm.InsertBatch(context.Background(), 0, 0, chunkHash.Hex(), chunkHash.Hex(), []*types.Chunk{chunk})
 	assert.NoError(t, err)
 
 	// check db status

bridge/tests/l1_message_relay_test.go

@@ -0,0 +1,81 @@
+package tests
+
+import (
+	"context"
+	"math/big"
+	"testing"
+
+	"github.com/scroll-tech/go-ethereum/accounts/abi/bind"
+	"github.com/scroll-tech/go-ethereum/common"
+	geth_types "github.com/scroll-tech/go-ethereum/core/types"
+	"github.com/scroll-tech/go-ethereum/rpc"
+	"github.com/stretchr/testify/assert"
+
+	"scroll-tech/common/database"
+	"scroll-tech/common/types"
+
+	"scroll-tech/bridge/internal/controller/relayer"
+	"scroll-tech/bridge/internal/controller/watcher"
+	"scroll-tech/bridge/internal/orm"
+)
+
+func testRelayL1MessageSucceed(t *testing.T) {
+	db := setupDB(t)
+	defer database.CloseDB(db)
+
+	prepareContracts(t)
+
+	l1Cfg := bridgeApp.Config.L1Config
+	l2Cfg := bridgeApp.Config.L2Config
+
+	// Create L1Relayer
+	l1Relayer, err := relayer.NewLayer1Relayer(context.Background(), db, l1Cfg.RelayerConfig)
+	assert.NoError(t, err)
+	// Create L1Watcher
+	confirmations := rpc.LatestBlockNumber
+	l1Watcher := watcher.NewL1WatcherClient(context.Background(), l1Client, 0, confirmations, l1Cfg.L1MessengerAddress, l1Cfg.L1MessageQueueAddress, l1Cfg.ScrollChainContractAddress, db)
+
+	// Create L2Watcher
+	l2Watcher := watcher.NewL2WatcherClient(context.Background(), l2Client, confirmations, l2Cfg.L2MessengerAddress, l2Cfg.L2MessageQueueAddress, l2Cfg.WithdrawTrieRootSlot, db)
+
+	// send message through l1 messenger contract
+	nonce, err := l1MessengerInstance.MessageNonce(&bind.CallOpts{})
+	assert.NoError(t, err)
+	sendTx, err := l1MessengerInstance.SendMessage(l1Auth, l2Auth.From, big.NewInt(0), common.Hex2Bytes("00112233"), big.NewInt(0))
+	assert.NoError(t, err)
+	sendReceipt, err := bind.WaitMined(context.Background(), l1Client, sendTx)
+	assert.NoError(t, err)
+	if sendReceipt.Status != geth_types.ReceiptStatusSuccessful || err != nil {
+		t.Fatalf("Call failed")
+	}
+
+	// l1 watch process events
+	l1Watcher.FetchContractEvent()
+
+	l1MessageOrm := orm.NewL1Message(db)
+	// check db status
+	msg, err := l1MessageOrm.GetL1MessageByQueueIndex(nonce.Uint64())
+	assert.NoError(t, err)
+	assert.Equal(t, types.MsgStatus(msg.Status), types.MsgPending)
+	assert.Equal(t, msg.Target, l2Auth.From.String())
+
+	// process l1 messages
+	l1Relayer.ProcessSavedEvents()
+
+	l1Message, err := l1MessageOrm.GetL1MessageByQueueIndex(nonce.Uint64())
+	assert.NoError(t, err)
+	assert.NotEmpty(t, l1Message.Layer2Hash)
+	assert.Equal(t, types.MsgStatus(l1Message.Status), types.MsgSubmitted)
+
+	relayTx, _, err := l2Client.TransactionByHash(context.Background(), common.HexToHash(l1Message.Layer2Hash))
+	assert.NoError(t, err)
+	relayTxReceipt, err := bind.WaitMined(context.Background(), l2Client, relayTx)
+	assert.NoError(t, err)
+	assert.Equal(t, len(relayTxReceipt.Logs), 1)
+
+	// fetch message relayed events
+	l2Watcher.FetchContractEvent()
+	msg, err = l1MessageOrm.GetL1MessageByQueueIndex(nonce.Uint64())
+	assert.NoError(t, err)
+	assert.Equal(t, types.MsgStatus(msg.Status), types.MsgConfirmed)
+}

bridge/tests/process_start_test.go

@@ -6,9 +6,10 @@ import (
 	"strconv"
 	"testing"
 
-	_ "scroll-tech/rollup/cmd/event_watcher/app"
-	_ "scroll-tech/rollup/cmd/gas_oracle/app"
-	_ "scroll-tech/rollup/cmd/rollup_relayer/app"
+	_ "scroll-tech/bridge/cmd/event_watcher/app"
+	_ "scroll-tech/bridge/cmd/gas_oracle/app"
+	_ "scroll-tech/bridge/cmd/msg_relayer/app"
+	_ "scroll-tech/bridge/cmd/rollup_relayer/app"
 
 	"scroll-tech/common/database"
 	cutils "scroll-tech/common/utils"
@@ -20,11 +21,12 @@ func testProcessStart(t *testing.T) {
 	db := setupDB(t)
 	defer database.CloseDB(db)
 
-	rollupApp.RunApp(t, cutils.EventWatcherApp)
-	rollupApp.RunApp(t, cutils.GasOracleApp)
-	rollupApp.RunApp(t, cutils.RollupRelayerApp)
+	bridgeApp.RunApp(t, cutils.EventWatcherApp)
+	bridgeApp.RunApp(t, cutils.GasOracleApp)
+	bridgeApp.RunApp(t, cutils.MessageRelayerApp)
+	bridgeApp.RunApp(t, cutils.RollupRelayerApp)
 
-	rollupApp.WaitExit()
+	bridgeApp.WaitExit()
 }
 
 func testProcessStartEnableMetrics(t *testing.T) {
@@ -34,17 +36,22 @@ func testProcessStartEnableMetrics(t *testing.T) {
 	port, err := rand.Int(rand.Reader, big.NewInt(2000))
 	assert.NoError(t, err)
 	svrPort := strconv.FormatInt(port.Int64()+50000, 10)
-	rollupApp.RunApp(t, cutils.EventWatcherApp, "--metrics", "--metrics.addr", "localhost", "--metrics.port", svrPort)
+	bridgeApp.RunApp(t, cutils.EventWatcherApp, "--metrics", "--metrics.addr", "localhost", "--metrics.port", svrPort)
 
 	port, err = rand.Int(rand.Reader, big.NewInt(2000))
 	assert.NoError(t, err)
 	svrPort = strconv.FormatInt(port.Int64()+50000, 10)
-	rollupApp.RunApp(t, cutils.GasOracleApp, "--metrics", "--metrics.addr", "localhost", "--metrics.port", svrPort)
+	bridgeApp.RunApp(t, cutils.GasOracleApp, "--metrics", "--metrics.addr", "localhost", "--metrics.port", svrPort)
 
 	port, err = rand.Int(rand.Reader, big.NewInt(2000))
 	assert.NoError(t, err)
 	svrPort = strconv.FormatInt(port.Int64()+50000, 10)
-	rollupApp.RunApp(t, cutils.RollupRelayerApp, "--metrics", "--metrics.addr", "localhost", "--metrics.port", svrPort)
+	bridgeApp.RunApp(t, cutils.MessageRelayerApp, "--metrics", "--metrics.addr", "localhost", "--metrics.port", svrPort)
 
-	rollupApp.WaitExit()
+	port, err = rand.Int(rand.Reader, big.NewInt(2000))
+	assert.NoError(t, err)
+	svrPort = strconv.FormatInt(port.Int64()+50000, 10)
+	bridgeApp.RunApp(t, cutils.RollupRelayerApp, "--metrics", "--metrics.addr", "localhost", "--metrics.port", svrPort)
+
+	bridgeApp.WaitExit()
 }

bridge/tests/rollup_test.go

@@ -5,6 +5,7 @@ import (
 	"math/big"
 	"testing"
 
+	"github.com/scroll-tech/go-ethereum/accounts/abi/bind"
 	"github.com/scroll-tech/go-ethereum/common"
 	gethTypes "github.com/scroll-tech/go-ethereum/core/types"
 	"github.com/stretchr/testify/assert"
@@ -12,12 +13,11 @@ import (
 	"scroll-tech/common/database"
 	"scroll-tech/common/types"
 	"scroll-tech/common/types/message"
-	"scroll-tech/common/utils"
 
-	"scroll-tech/rollup/internal/config"
-	"scroll-tech/rollup/internal/controller/relayer"
-	"scroll-tech/rollup/internal/controller/watcher"
-	"scroll-tech/rollup/internal/orm"
+	"scroll-tech/bridge/internal/config"
+	"scroll-tech/bridge/internal/controller/relayer"
+	"scroll-tech/bridge/internal/controller/watcher"
+	"scroll-tech/bridge/internal/orm"
 )
 
 func testCommitBatchAndFinalizeBatch(t *testing.T) {
@@ -27,13 +27,13 @@ func testCommitBatchAndFinalizeBatch(t *testing.T) {
 	prepareContracts(t)
 
 	// Create L2Relayer
-	l2Cfg := rollupApp.Config.L2Config
-	l2Relayer, err := relayer.NewLayer2Relayer(context.Background(), l2Client, db, l2Cfg.RelayerConfig, false, nil)
+	l2Cfg := bridgeApp.Config.L2Config
+	l2Relayer, err := relayer.NewLayer2Relayer(context.Background(), l2Client, db, l2Cfg.RelayerConfig, false)
 	assert.NoError(t, err)
 
 	// Create L1Watcher
-	l1Cfg := rollupApp.Config.L1Config
-	l1Watcher := watcher.NewL1WatcherClient(context.Background(), l1Client, 0, l1Cfg.Confirmations, l1Cfg.L1MessageQueueAddress, l1Cfg.ScrollChainContractAddress, db, nil)
+	l1Cfg := bridgeApp.Config.L1Config
+	l1Watcher := watcher.NewL1WatcherClient(context.Background(), l1Client, 0, l1Cfg.Confirmations, l1Cfg.L1MessengerAddress, l1Cfg.L1MessageQueueAddress, l1Cfg.ScrollChainContractAddress, db)
 
 	// add some blocks to db
 	var wrappedBlocks []*types.WrappedBlock
@@ -57,20 +57,18 @@ func testCommitBatchAndFinalizeBatch(t *testing.T) {
 	assert.NoError(t, err)
 
 	cp := watcher.NewChunkProposer(context.Background(), &config.ChunkProposerConfig{
-		MaxTxNumPerChunk:                10000,
+		MaxTxGasPerChunk:                1000000000,
+		MaxL2TxNumPerChunk:              10000,
 		MaxL1CommitGasPerChunk:          50000000000,
 		MaxL1CommitCalldataSizePerChunk: 1000000,
+		MinL1CommitCalldataSizePerChunk: 0,
 		MaxRowConsumptionPerChunk:       1048319,
 		ChunkTimeoutSec:                 300,
-	}, db, nil)
+	}, db)
 	cp.TryProposeChunk()
 
-	batchOrm := orm.NewBatch(db)
-	unbatchedChunkIndex, err := batchOrm.GetFirstUnbatchedChunkIndex(context.Background())
-	assert.NoError(t, err)
-
 	chunkOrm := orm.NewChunk(db)
-	chunks, err := chunkOrm.GetChunksGEIndex(context.Background(), unbatchedChunkIndex, 0)
+	chunks, err := chunkOrm.GetUnbatchedChunks(context.Background())
 	assert.NoError(t, err)
 	assert.Len(t, chunks, 1)
 
@@ -78,12 +76,14 @@ func testCommitBatchAndFinalizeBatch(t *testing.T) {
 		MaxChunkNumPerBatch:             10,
 		MaxL1CommitGasPerBatch:          50000000000,
 		MaxL1CommitCalldataSizePerBatch: 1000000,
+		MinChunkNumPerBatch:             1,
 		BatchTimeoutSec:                 300,
-	}, db, nil)
+	}, db)
 	bp.TryProposeBatch()
 
 	l2Relayer.ProcessPendingBatches()
 
+	batchOrm := orm.NewBatch(db)
 	batch, err := batchOrm.GetLatestBatch(context.Background())
 	assert.NoError(t, err)
 	assert.NotNil(t, batch)
@@ -91,22 +91,20 @@ func testCommitBatchAndFinalizeBatch(t *testing.T) {
 	assert.NotEmpty(t, batch.CommitTxHash)
 	assert.Equal(t, types.RollupCommitting, types.RollupStatus(batch.RollupStatus))
 
-	success := utils.TryTimes(30, func() bool {
-		var receipt *gethTypes.Receipt
-		receipt, err = l1Client.TransactionReceipt(context.Background(), common.HexToHash(batch.CommitTxHash))
-		return err == nil && receipt.Status == 1
-	})
-	assert.True(t, success)
+	assert.NoError(t, err)
+	commitTx, _, err := l1Client.TransactionByHash(context.Background(), common.HexToHash(batch.CommitTxHash))
+	assert.NoError(t, err)
+	commitTxReceipt, err := bind.WaitMined(context.Background(), l1Client, commitTx)
+	assert.NoError(t, err)
+	assert.Equal(t, len(commitTxReceipt.Logs), 1)
 
 	// fetch rollup events
-	success = utils.TryTimes(30, func() bool {
-		err = l1Watcher.FetchContractEvent()
-		assert.NoError(t, err)
-		var statuses []types.RollupStatus
-		statuses, err = batchOrm.GetRollupStatusByHashList(context.Background(), []string{batchHash})
-		return err == nil && len(statuses) == 1 && types.RollupCommitted == statuses[0]
-	})
-	assert.True(t, success)
+	err = l1Watcher.FetchContractEvent()
+	assert.NoError(t, err)
+	statuses, err := batchOrm.GetRollupStatusByHashList(context.Background(), []string{batchHash})
+	assert.NoError(t, err)
+	assert.Equal(t, 1, len(statuses))
+	assert.Equal(t, types.RollupCommitted, statuses[0])
 
 	// add dummy proof
 	proof := &message.BatchProof{
@@ -120,7 +118,7 @@ func testCommitBatchAndFinalizeBatch(t *testing.T) {
 	// process committed batch and check status
 	l2Relayer.ProcessCommittedBatches()
 
-	statuses, err := batchOrm.GetRollupStatusByHashList(context.Background(), []string{batchHash})
+	statuses, err = batchOrm.GetRollupStatusByHashList(context.Background(), []string{batchHash})
 	assert.NoError(t, err)
 	assert.Equal(t, 1, len(statuses))
 	assert.Equal(t, types.RollupFinalizing, statuses[0])
@@ -130,20 +128,17 @@ func testCommitBatchAndFinalizeBatch(t *testing.T) {
 	assert.NotNil(t, batch)
 	assert.NotEmpty(t, batch.FinalizeTxHash)
 
-	success = utils.TryTimes(30, func() bool {
-		var receipt *gethTypes.Receipt
-		receipt, err = l1Client.TransactionReceipt(context.Background(), common.HexToHash(batch.FinalizeTxHash))
-		return err == nil && receipt.Status == 1
-	})
-	assert.True(t, success)
+	finalizeTx, _, err := l1Client.TransactionByHash(context.Background(), common.HexToHash(batch.FinalizeTxHash))
+	assert.NoError(t, err)
+	finalizeTxReceipt, err := bind.WaitMined(context.Background(), l1Client, finalizeTx)
+	assert.NoError(t, err)
+	assert.Equal(t, len(finalizeTxReceipt.Logs), 1)
 
 	// fetch rollup events
-	success = utils.TryTimes(30, func() bool {
-		err = l1Watcher.FetchContractEvent()
-		assert.NoError(t, err)
-		var statuses []types.RollupStatus
-		statuses, err = batchOrm.GetRollupStatusByHashList(context.Background(), []string{batchHash})
-		return err == nil && len(statuses) == 1 && types.RollupFinalized == statuses[0]
-	})
-	assert.True(t, success)
+	err = l1Watcher.FetchContractEvent()
+	assert.NoError(t, err)
+	statuses, err = batchOrm.GetRollupStatusByHashList(context.Background(), []string{batchHash})
+	assert.NoError(t, err)
+	assert.Equal(t, 1, len(statuses))
+	assert.Equal(t, types.RollupFinalized, statuses[0])
 }

build/dockerfiles/coordinator.Dockerfile

@@ -20,7 +20,7 @@ RUN find ./ | grep libzktrie.so | xargs -I{} cp {} /app/target/release/
 FROM scrolltech/go-rust-builder:go-1.19-rust-nightly-2022-12-10 as base
 WORKDIR /src
 COPY go.work* ./
-COPY ./rollup/go.* ./rollup/
+COPY ./bridge/go.* ./bridge/
 COPY ./common/go.* ./common/
 COPY ./coordinator/go.* ./coordinator/
 COPY ./database/go.* ./database/

build/dockerfiles/db_cli.Dockerfile

@@ -3,7 +3,7 @@ FROM scrolltech/go-alpine-builder:1.19 as base
 
 WORKDIR /src
 COPY go.work* ./
-COPY ./rollup/go.* ./rollup/
+COPY ./bridge/go.* ./bridge/
 COPY ./common/go.* ./common/
 COPY ./coordinator/go.* ./coordinator/
 COPY ./database/go.* ./database/

build/dockerfiles/event_watcher.Dockerfile

@@ -3,7 +3,7 @@ FROM scrolltech/go-alpine-builder:1.19 as base
 
 WORKDIR /src
 COPY go.work* ./
-COPY ./rollup/go.* ./rollup/
+COPY ./bridge/go.* ./bridge/
 COPY ./common/go.* ./common/
 COPY ./coordinator/go.* ./coordinator/
 COPY ./database/go.* ./database/
@@ -18,7 +18,7 @@ FROM base as builder
 
 RUN --mount=target=. \
     --mount=type=cache,target=/root/.cache/go-build \
-    cd /src/rollup/cmd/event_watcher/ && go build -v -p 4 -o /bin/event_watcher
+    cd /src/bridge/cmd/event_watcher/ && go build -v -p 4 -o /bin/event_watcher
 
 # Pull event_watcher into a second stage deploy alpine container
 FROM alpine:latest

build/dockerfiles/gas_oracle.Dockerfile

@@ -3,7 +3,7 @@ FROM scrolltech/go-alpine-builder:1.19 as base
 
 WORKDIR /src
 COPY go.work* ./
-COPY ./rollup/go.* ./rollup/
+COPY ./bridge/go.* ./bridge/
 COPY ./common/go.* ./common/
 COPY ./coordinator/go.* ./coordinator/
 COPY ./database/go.* ./database/
@@ -18,7 +18,7 @@ FROM base as builder
 
 RUN --mount=target=. \
     --mount=type=cache,target=/root/.cache/go-build \
-    cd /src/rollup/cmd/gas_oracle/ && go build -v -p 4 -o /bin/gas_oracle
+    cd /src/bridge/cmd/gas_oracle/ && go build -v -p 4 -o /bin/gas_oracle
 
 # Pull gas_oracle into a second stage deploy alpine container
 FROM alpine:latest

build/dockerfiles/msg_relayer.Dockerfile

@@ -0,0 +1,28 @@
+# Download Go dependencies
+FROM scrolltech/go-alpine-builder:1.19 as base
+
+WORKDIR /src
+COPY go.work* ./
+COPY ./bridge/go.* ./bridge/
+COPY ./common/go.* ./common/
+COPY ./coordinator/go.* ./coordinator/
+COPY ./database/go.* ./database/
+COPY ./prover-stats-api/go.* ./prover-stats-api/
+COPY ./prover/go.* ./prover/
+COPY ./tests/integration-test/go.* ./tests/integration-test/
+COPY ./bridge-history-api/go.* ./bridge-history-api/
+RUN go mod download -x
+
+# Build msg_relayer
+FROM base as builder
+
+RUN --mount=target=. \
+    --mount=type=cache,target=/root/.cache/go-build \
+    cd /src/bridge/cmd/msg_relayer/ && go build -v -p 4 -o /bin/msg_relayer
+
+# Pull msg_relayer into a second stage deploy alpine container
+FROM alpine:latest
+
+COPY --from=builder /bin/msg_relayer /bin/
+
+ENTRYPOINT ["msg_relayer"]

build/dockerfiles/msg_relayer.Dockerfile.dockerignore

@@ -0,0 +1,5 @@
+assets/
+docs/
+l2geth/
+rpc-gateway/
+*target/*

build/dockerfiles/prover-stats-api.Dockerfile

@@ -3,7 +3,7 @@ FROM scrolltech/go-alpine-builder:1.19 as base
 
 WORKDIR /src
 COPY go.work* ./
-COPY ./rollup/go.* ./rollup/
+COPY ./bridge/go.* ./bridge/
 COPY ./common/go.* ./common/
 COPY ./coordinator/go.* ./coordinator/
 COPY ./database/go.* ./database/

build/dockerfiles/rollup_relayer.Dockerfile

@@ -3,7 +3,7 @@ FROM scrolltech/go-alpine-builder:1.19 as base
 
 WORKDIR /src
 COPY go.work* ./
-COPY ./rollup/go.* ./rollup/
+COPY ./bridge/go.* ./bridge/
 COPY ./common/go.* ./common/
 COPY ./coordinator/go.* ./coordinator/
 COPY ./database/go.* ./database/
@@ -18,7 +18,7 @@ FROM base as builder
 
 RUN --mount=target=. \
     --mount=type=cache,target=/root/.cache/go-build \
-    cd /src/rollup/cmd/rollup_relayer/ && go build -v -p 4 -o /bin/rollup_relayer
+    cd /src/bridge/cmd/rollup_relayer/ && go build -v -p 4 -o /bin/rollup_relayer
 
 # Pull rollup_relayer into a second stage deploy alpine container
 FROM alpine:latest

build/run_tests.sh

@@ -3,7 +3,7 @@ set -uex
 
 profile_name=$1
 
-exclude_dirs=("scroll-tech/rollup/cmd" "scroll-tech/rollup/tests" "scroll-tech/rollup/mock_bridge" "scroll-tech/coordinator/cmd" "scroll-tech/coordinator/internal/logic/verifier")
+exclude_dirs=("scroll-tech/bridge/cmd" "scroll-tech/bridge/tests" "scroll-tech/bridge/mock_bridge" "scroll-tech/coordinator/cmd" "scroll-tech/coordinator/internal/logic/verifier")
 
 all_packages=$(go list ./... | grep -v "^scroll-tech/${profile_name}$")
 coverpkg="scroll-tech/${profile_name}"

codecov.yml

@@ -6,7 +6,7 @@ flag_management:
   default_rules:
     carryforward: true
   individual_flags:
-    - name: rollup
+    - name: bridge
       statuses:
         - type: project
           target: auto

common/cmd/cmd.go

@@ -5,9 +5,8 @@ import (
 	"os"
 	"os/exec"
 	"strings"
-	"sync/atomic"
+	"sync"
 
-	"github.com/docker/docker/pkg/reexec"
 	cmap "github.com/orcaman/concurrent-map"
 )
 
@@ -27,9 +26,8 @@ type Cmd struct {
 	name string
 	args []string
 
-	isRunning uint64
-	cmd       *exec.Cmd
-	app       *exec.Cmd
+	mu  sync.Mutex
+	cmd *exec.Cmd
 
 	checkFuncs cmap.ConcurrentMap //map[string]checkFunc
 
@@ -40,23 +38,13 @@ type Cmd struct {
 }
 
 // NewCmd create Cmd instance.
-func NewCmd(name string, params ...string) *Cmd {
-	cmd := &Cmd{
+func NewCmd(name string, args ...string) *Cmd {
+	return &Cmd{
 		checkFuncs: cmap.New(),
 		name:       name,
-		args:       params,
+		args:       args,
 		ErrChan:    make(chan error, 10),
-		cmd:        exec.Command(name, params...),
-		app: &exec.Cmd{
-			Path: reexec.Self(),
-			Args: append([]string{name}, params...),
-		},
 	}
-	cmd.cmd.Stdout = cmd
-	cmd.cmd.Stderr = cmd
-	cmd.app.Stdout = cmd
-	cmd.app.Stderr = cmd
-	return cmd
 }
 
 // RegistFunc register check func
@@ -70,14 +58,15 @@ func (c *Cmd) UnRegistFunc(key string) {
 }
 
 func (c *Cmd) runCmd() {
-	fmt.Println("cmd:", append([]string{c.name}, c.args...))
-	if atomic.CompareAndSwapUint64(&c.isRunning, 0, 1) {
-		c.ErrChan <- c.cmd.Run()
-	}
+	cmd := exec.Command(c.args[0], c.args[1:]...) //nolint:gosec
+	cmd.Stdout = c
+	cmd.Stderr = c
+	c.ErrChan <- cmd.Run()
 }
 
 // RunCmd parallel running when parallel is true.
 func (c *Cmd) RunCmd(parallel bool) {
+	fmt.Println("cmd:", c.args)
 	if parallel {
 		go c.runCmd()
 	} else {

common/cmd/cmd_app.go

@@ -3,45 +3,41 @@ package cmd
 import (
 	"fmt"
 	"os"
+	"os/exec"
 	"strings"
-	"sync/atomic"
-	"syscall"
 	"testing"
 	"time"
 
+	"github.com/docker/docker/pkg/reexec"
 	"github.com/stretchr/testify/assert"
 )
 
-// IsRunning 1 started, 0 not started.
-func (c *Cmd) IsRunning() bool {
-	return atomic.LoadUint64(&c.isRunning) == 1
-}
-
-func (c *Cmd) runApp() {
-	fmt.Println("cmd:", append([]string{c.name}, c.args...))
-	if atomic.CompareAndSwapUint64(&c.isRunning, 0, 1) {
-		c.ErrChan <- c.app.Run()
-	}
-}
-
 // RunApp exec's the current binary using name as argv[0] which will trigger the
 // reexec init function for that name (e.g. "geth-test" in cmd/geth/run_test.go)
 func (c *Cmd) RunApp(waitResult func() bool) {
+	fmt.Println("cmd: ", append([]string{c.name}, c.args...))
+	cmd := &exec.Cmd{
+		Path:   reexec.Self(),
+		Args:   append([]string{c.name}, c.args...),
+		Stderr: c,
+		Stdout: c,
+	}
 	if waitResult != nil {
 		go func() {
-			c.runApp()
+			_ = cmd.Run()
 		}()
 		waitResult()
 	} else {
-		c.runApp()
+		_ = cmd.Run()
 	}
+
+	c.mu.Lock()
+	c.cmd = cmd
+	c.mu.Unlock()
 }
 
 // WaitExit wait util process exit.
 func (c *Cmd) WaitExit() {
-	if atomic.LoadUint64(&c.isRunning) == 0 {
-		return
-	}
 	// Wait all the check functions are finished, interrupt loop when appear error.
 	var err error
 	for err == nil && !c.checkFuncs.IsEmpty() {
@@ -56,18 +52,20 @@ func (c *Cmd) WaitExit() {
 	}
 
 	// Send interrupt signal.
-	_ = c.app.Process.Signal(os.Interrupt)
-	// should use `_ = c.app.Process.Wait()` here, but we have some bugs in coordinator's graceful exit,
+	c.mu.Lock()
+	_ = c.cmd.Process.Signal(os.Interrupt)
+	// should use `_ = c.cmd.Process.Wait()` here, but we have some bugs in coordinator's graceful exit,
 	// so we use `Kill` as a temp workaround. And since `WaitExit` is only used in integration tests, so
 	// it won't really affect our functionalities.
-	if err = c.app.Process.Signal(syscall.SIGTERM); err != nil {
-		_ = c.app.Process.Kill()
-	}
+	_ = c.cmd.Process.Kill()
+	c.mu.Unlock()
 }
 
 // Interrupt send interrupt signal.
 func (c *Cmd) Interrupt() {
-	c.ErrChan <- c.app.Process.Signal(os.Interrupt)
+	c.mu.Lock()
+	c.ErrChan <- c.cmd.Process.Signal(os.Interrupt)
+	c.mu.Unlock()
 }
 
 // WaitResult return true when get the keyword during timeout.

common/cmd/cmd_test.go

@@ -12,7 +12,7 @@ import (
 )
 
 func TestCmd(t *testing.T) {
-	app := cmd.NewCmd("date", "+%Y-%m-%d")
+	app := cmd.NewCmd("curTime", "date", "+%Y-%m-%d")
 
 	tm := time.Now()
 	curTime := fmt.Sprintf("%d-%02d-%02d", tm.Year(), tm.Month(), tm.Day())

common/docker/docker_app.go

@@ -27,7 +27,6 @@ var (
 
 // AppAPI app interface.
 type AppAPI interface {
-	IsRunning() bool
 	WaitResult(t *testing.T, timeout time.Duration, keyword string) bool
 	RunApp(waitResult func() bool)
 	WaitExit()

common/docker/docker_db.go

@@ -36,7 +36,7 @@ func NewImgDB(image, password, dbName string, port int) ImgInstance {
 		dbName:   dbName,
 		port:     port,
 	}
-	img.cmd = cmd.NewCmd("docker", img.prepare()...)
+	img.cmd = cmd.NewCmd(img.name, img.prepare()...)
 	return img
 }
 
@@ -89,7 +89,7 @@ func (i *ImgDB) IsRunning() bool {
 }
 
 func (i *ImgDB) prepare() []string {
-	cmd := []string{"run", "--rm", "--name", i.name, "-p", fmt.Sprintf("%d:5432", i.port)}
+	cmd := []string{"docker", "run", "--rm", "--name", i.name, "-p", fmt.Sprintf("%d:5432", i.port)}
 	envs := []string{
 		"-e", "POSTGRES_PASSWORD=" + i.password,
 		"-e", fmt.Sprintf("POSTGRES_DB=%s", i.dbName),

common/docker/docker_geth.go

@@ -42,7 +42,7 @@ func NewImgGeth(image, volume, ipc string, hPort, wPort int) GethImgInstance {
 		httpPort: hPort,
 		wsPort:   wPort,
 	}
-	img.cmd = cmd.NewCmd("docker", img.params()...)
+	img.cmd = cmd.NewCmd(img.name, img.prepare()...)
 	return img
 }
 
@@ -149,8 +149,8 @@ func (i *ImgGeth) Stop() error {
 	return cli.ContainerRemove(ctx, i.id, types.ContainerRemoveOptions{})
 }
 
-func (i *ImgGeth) params() []string {
-	cmds := []string{"run", "--rm", "--name", i.name}
+func (i *ImgGeth) prepare() []string {
+	cmds := []string{"docker", "run", "--rm", "--name", i.name}
 	var ports []string
 	if i.httpPort != 0 {
 		ports = append(ports, []string{"-p", strconv.Itoa(i.httpPort) + ":8545"}...)

common/docker/l2geth/Dockerfile

@@ -1,4 +1,4 @@
-FROM scrolltech/l2geth:scroll-v4.3.55
+FROM scrolltech/l2geth:scroll-v4.3.34
 
 RUN mkdir -p /l2geth/keystore
 

common/go.mod

@@ -14,7 +14,7 @@ require (
 	github.com/modern-go/reflect2 v1.0.2
 	github.com/orcaman/concurrent-map v1.0.0
 	github.com/prometheus/client_golang v1.14.0
-	github.com/scroll-tech/go-ethereum v1.10.14-0.20230829000527-f883dcdc21fc
+	github.com/scroll-tech/go-ethereum v1.10.14-0.20230812030736-25fe3ba69a28
 	github.com/stretchr/testify v1.8.3
 	github.com/urfave/cli/v2 v2.25.7
 	gorm.io/driver/postgres v1.5.0
@@ -117,7 +117,7 @@ require (
 	golang.org/x/arch v0.4.0 // indirect
 	golang.org/x/crypto v0.12.0 // indirect
 	golang.org/x/mod v0.12.0 // indirect
-	golang.org/x/net v0.14.0 // indirect
+	golang.org/x/net v0.12.0 // indirect
 	golang.org/x/sync v0.3.0 // indirect
 	golang.org/x/sys v0.11.0 // indirect
 	golang.org/x/text v0.12.0 // indirect

common/go.sum

@@ -434,8 +434,8 @@ github.com/rs/cors v1.7.0 h1:+88SsELBHx5r+hZ8TCkggzSstaWNbDvThkVK8H6f9ik=
 github.com/rs/cors v1.7.0/go.mod h1:gFx+x8UowdsKA9AchylcLynDq+nNFfI8FkUZdN/jGCU=
 github.com/russross/blackfriday/v2 v2.1.0 h1:JIOH55/0cWyOuilr9/qlrm0BSXldqnqwMsf35Ld67mk=
 github.com/russross/blackfriday/v2 v2.1.0/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
-github.com/scroll-tech/go-ethereum v1.10.14-0.20230829000527-f883dcdc21fc h1:eK3NOpjgm/b2TQ6rYqWx92Zri0kBuxf6gKjjsVxWKr8=
-github.com/scroll-tech/go-ethereum v1.10.14-0.20230829000527-f883dcdc21fc/go.mod h1:DiN3p2inoXOxGffxSswDKqWjQ7bU+Mp0c9v0XQXKmaA=
+github.com/scroll-tech/go-ethereum v1.10.14-0.20230812030736-25fe3ba69a28 h1:CECBTWhZ5NGAn8lGFB4ooRAYxZns8PXoX8kTR/14c04=
+github.com/scroll-tech/go-ethereum v1.10.14-0.20230812030736-25fe3ba69a28/go.mod h1:DiN3p2inoXOxGffxSswDKqWjQ7bU+Mp0c9v0XQXKmaA=
 github.com/scroll-tech/zktrie v0.6.0 h1:xLrMAO31Yo2BiPg1jtYKzcjpEFnXy8acbB7iIsyshPs=
 github.com/scroll-tech/zktrie v0.6.0/go.mod h1:XvNo7vAk8yxNyTjBDj5WIiFzYW4bx/gJ78+NK6Zn6Uk=
 github.com/segmentio/kafka-go v0.1.0/go.mod h1:X6itGqS9L4jDletMsxZ7Dz+JFWxM6JHfPOCvTvk+EJo=
@@ -576,8 +576,8 @@ golang.org/x/net v0.0.0-20210119194325-5f4716e94777/go.mod h1:m0MpNAwzfU5UDzcl9v
 golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
 golang.org/x/net v0.0.0-20220722155237-a158d28d115b/go.mod h1:XRhObCWvk6IyKnWLug+ECip1KBveYUHfp+8e9klMJ9c=
 golang.org/x/net v0.6.0/go.mod h1:2Tu9+aMcznHK/AK1HMvgo6xiTLG5rD5rZLDS+rp2Bjs=
-golang.org/x/net v0.14.0 h1:BONx9s002vGdD9umnlX1Po8vOZmrgH34qlHcD1MfK14=
-golang.org/x/net v0.14.0/go.mod h1:PpSgVXXLK0OxS0F31C1/tv6XNguvCrnXIDrFMspZIUI=
+golang.org/x/net v0.12.0 h1:cfawfvKITfUsFCeJIHJrbSxpeu/E81khclypR0GVT50=
+golang.org/x/net v0.12.0/go.mod h1:zEVYFnQC7m/vmpQFELhcD1EWkZlX69l4oqgmer6hfKA=
 golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
 golang.org/x/oauth2 v0.0.0-20190226205417-e64efc72b421/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
 golang.org/x/oauth2 v0.0.0-20190604053449-0f29369cfe45/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=

common/libzkp/impl/Cargo.lock

@@ -32,7 +32,7 @@ dependencies = [
 [[package]]
 name = "aggregator"
 version = "0.1.0"
-source = "git+https://github.com/scroll-tech/zkevm-circuits.git?tag=v0.7.5#aa9a9aff698a5b253d1f3c29ea3d3006364777bf"
+source = "git+https://github.com/scroll-tech/zkevm-circuits.git?tag=v0.5.16#f1341e5bf2dc59ea10c19012257c7e386cfc195f"
 dependencies = [
  "ark-std",
  "env_logger 0.10.0",
@@ -380,7 +380,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4114279215a005bc675e386011e594e1d9b800918cea18fcadadcce864a2046b"
 dependencies = [
  "borsh-derive",
- "hashbrown 0.12.3",
+ "hashbrown 0.13.2",
 ]
 
 [[package]]
@@ -433,7 +433,7 @@ checksum = "a3e2c3daef883ecc1b5d58c15adae93470a91d425f3532ba1695849656af3fc1"
 [[package]]
 name = "bus-mapping"
 version = "0.1.0"
-source = "git+https://github.com/scroll-tech/zkevm-circuits.git?tag=v0.7.5#aa9a9aff698a5b253d1f3c29ea3d3006364777bf"
+source = "git+https://github.com/scroll-tech/zkevm-circuits.git?tag=v0.5.16#f1341e5bf2dc59ea10c19012257c7e386cfc195f"
 dependencies = [
  "eth-types",
  "ethers-core",
@@ -1049,7 +1049,7 @@ dependencies = [
 [[package]]
 name = "eth-types"
 version = "0.1.0"
-source = "git+https://github.com/scroll-tech/zkevm-circuits.git?tag=v0.7.5#aa9a9aff698a5b253d1f3c29ea3d3006364777bf"
+source = "git+https://github.com/scroll-tech/zkevm-circuits.git?tag=v0.5.16#f1341e5bf2dc59ea10c19012257c7e386cfc195f"
 dependencies = [
  "ethers-core",
  "ethers-signers",
@@ -1226,7 +1226,7 @@ dependencies = [
 [[package]]
 name = "external-tracer"
 version = "0.1.0"
-source = "git+https://github.com/scroll-tech/zkevm-circuits.git?tag=v0.7.5#aa9a9aff698a5b253d1f3c29ea3d3006364777bf"
+source = "git+https://github.com/scroll-tech/zkevm-circuits.git?tag=v0.5.16#f1341e5bf2dc59ea10c19012257c7e386cfc195f"
 dependencies = [
  "eth-types",
  "geth-utils",
@@ -1439,7 +1439,7 @@ dependencies = [
 [[package]]
 name = "gadgets"
 version = "0.1.0"
-source = "git+https://github.com/scroll-tech/zkevm-circuits.git?tag=v0.7.5#aa9a9aff698a5b253d1f3c29ea3d3006364777bf"
+source = "git+https://github.com/scroll-tech/zkevm-circuits.git?tag=v0.5.16#f1341e5bf2dc59ea10c19012257c7e386cfc195f"
 dependencies = [
  "digest 0.7.6",
  "eth-types",
@@ -1479,7 +1479,7 @@ dependencies = [
 [[package]]
 name = "geth-utils"
 version = "0.1.0"
-source = "git+https://github.com/scroll-tech/zkevm-circuits.git?tag=v0.7.5#aa9a9aff698a5b253d1f3c29ea3d3006364777bf"
+source = "git+https://github.com/scroll-tech/zkevm-circuits.git?tag=v0.5.16#f1341e5bf2dc59ea10c19012257c7e386cfc195f"
 dependencies = [
  "env_logger 0.9.3",
  "gobuild 0.1.0-alpha.2 (git+https://github.com/scroll-tech/gobuild.git)",
@@ -1583,7 +1583,7 @@ dependencies = [
 [[package]]
 name = "halo2-base"
 version = "0.2.2"
-source = "git+https://github.com/scroll-tech/halo2-lib?tag=v0.1.0#2c225864227e74b207d9f4b9e08c4d5f1afc69a1"
+source = "git+https://github.com/scroll-tech/halo2-lib?branch=develop#2c225864227e74b207d9f4b9e08c4d5f1afc69a1"
 dependencies = [
  "ff",
  "halo2_proofs",
@@ -1598,7 +1598,7 @@ dependencies = [
 [[package]]
 name = "halo2-ecc"
 version = "0.2.2"
-source = "git+https://github.com/scroll-tech/halo2-lib?tag=v0.1.0#2c225864227e74b207d9f4b9e08c4d5f1afc69a1"
+source = "git+https://github.com/scroll-tech/halo2-lib?branch=develop#2c225864227e74b207d9f4b9e08c4d5f1afc69a1"
 dependencies = [
  "ff",
  "group",
@@ -1633,7 +1633,7 @@ dependencies = [
 [[package]]
 name = "halo2-mpt-circuits"
 version = "0.1.0"
-source = "git+https://github.com/scroll-tech/mpt-circuit.git?tag=v0.5.1#2163a9c436ed85363c954ecf7e6e1044a1b991dc"
+source = "git+https://github.com/scroll-tech/mpt-circuit.git?branch=v0.5#2163a9c436ed85363c954ecf7e6e1044a1b991dc"
 dependencies = [
  "ethers-core",
  "halo2_proofs",
@@ -1655,7 +1655,7 @@ dependencies = [
 [[package]]
 name = "halo2_proofs"
 version = "0.2.0"
-source = "git+https://github.com/scroll-tech/halo2.git?branch=develop#19de67c07a9b9b567580466763f93ebfbc3bb799"
+source = "git+https://github.com/scroll-tech/halo2.git?branch=develop#01f0b5260445a9190299af7b06b766c1e925fdaf"
 dependencies = [
  "ark-std",
  "blake2b_simd",
@@ -2077,7 +2077,7 @@ dependencies = [
 [[package]]
 name = "keccak256"
 version = "0.1.0"
-source = "git+https://github.com/scroll-tech/zkevm-circuits.git?tag=v0.7.5#aa9a9aff698a5b253d1f3c29ea3d3006364777bf"
+source = "git+https://github.com/scroll-tech/zkevm-circuits.git?tag=v0.5.16#f1341e5bf2dc59ea10c19012257c7e386cfc195f"
 dependencies = [
  "env_logger 0.9.3",
  "eth-types",
@@ -2264,7 +2264,7 @@ dependencies = [
 [[package]]
 name = "mock"
 version = "0.1.0"
-source = "git+https://github.com/scroll-tech/zkevm-circuits.git?tag=v0.7.5#aa9a9aff698a5b253d1f3c29ea3d3006364777bf"
+source = "git+https://github.com/scroll-tech/zkevm-circuits.git?tag=v0.5.16#f1341e5bf2dc59ea10c19012257c7e386cfc195f"
 dependencies = [
  "eth-types",
  "ethers-core",
@@ -2279,7 +2279,7 @@ dependencies = [
 [[package]]
 name = "mpt-zktrie"
 version = "0.1.0"
-source = "git+https://github.com/scroll-tech/zkevm-circuits.git?tag=v0.7.5#aa9a9aff698a5b253d1f3c29ea3d3006364777bf"
+source = "git+https://github.com/scroll-tech/zkevm-circuits.git?tag=v0.5.16#f1341e5bf2dc59ea10c19012257c7e386cfc195f"
 dependencies = [
  "bus-mapping",
  "eth-types",
@@ -2754,8 +2754,8 @@ dependencies = [
 
 [[package]]
 name = "prover"
-version = "0.7.5"
-source = "git+https://github.com/scroll-tech/scroll-prover?tag=v0.7.5#9699d40940aed2f14d8e1958167d714bca2c9984"
+version = "0.4.0"
+source = "git+https://github.com/scroll-tech/scroll-prover?tag=v0.5.16#bd901762c4744936586f4a30e27a4b65cea3bb71"
 dependencies = [
  "aggregator",
  "anyhow",
@@ -3624,7 +3624,7 @@ checksum = "62bb4feee49fdd9f707ef802e22365a35de4b7b299de4763d44bfea899442ff9"
 [[package]]
 name = "snark-verifier"
 version = "0.1.0"
-source = "git+https://github.com/scroll-tech/snark-verifier?tag=v0.1.2#4466059ce9a6dfaf26455e4ffb61d72af775cf52"
+source = "git+https://github.com/scroll-tech/snark-verifier?branch=develop#100127726ac210226ac1096767e0efc5230775e3"
 dependencies = [
  "bytes",
  "ethereum-types 0.14.1",
@@ -3648,7 +3648,7 @@ dependencies = [
 [[package]]
 name = "snark-verifier-sdk"
 version = "0.0.1"
-source = "git+https://github.com/scroll-tech/snark-verifier?tag=v0.1.2#4466059ce9a6dfaf26455e4ffb61d72af775cf52"
+source = "git+https://github.com/scroll-tech/snark-verifier?branch=develop#100127726ac210226ac1096767e0efc5230775e3"
 dependencies = [
  "bincode",
  "env_logger 0.10.0",
@@ -4039,8 +4039,8 @@ checksum = "497961ef93d974e23eb6f433eb5fe1b7930b659f06d12dec6fc44a8f554c0bba"
 
 [[package]]
 name = "types"
-version = "0.7.5"
-source = "git+https://github.com/scroll-tech/scroll-prover?tag=v0.7.5#9699d40940aed2f14d8e1958167d714bca2c9984"
+version = "0.4.0"
+source = "git+https://github.com/scroll-tech/scroll-prover?tag=v0.5.16#bd901762c4744936586f4a30e27a4b65cea3bb71"
 dependencies = [
  "base64 0.13.1",
  "blake2",
@@ -4491,11 +4491,10 @@ checksum = "2a0956f1ba7c7909bfb66c2e9e4124ab6f6482560f6628b5aaeba39207c9aad9"
 [[package]]
 name = "zkevm-circuits"
 version = "0.1.0"
-source = "git+https://github.com/scroll-tech/zkevm-circuits.git?tag=v0.7.5#aa9a9aff698a5b253d1f3c29ea3d3006364777bf"
+source = "git+https://github.com/scroll-tech/zkevm-circuits.git?tag=v0.5.16#f1341e5bf2dc59ea10c19012257c7e386cfc195f"
 dependencies = [
  "array-init",
  "bus-mapping",
- "either",
  "env_logger 0.9.3",
  "eth-types",
  "ethers-core",
@@ -4536,7 +4535,6 @@ dependencies = [
 name = "zkp"
 version = "0.1.0"
 dependencies = [
- "base64 0.13.1",
  "env_logger 0.9.3",
  "halo2_proofs",
  "libc",

common/libzkp/impl/Cargo.toml

@@ -20,18 +20,18 @@ maingate = { git = "https://github.com/scroll-tech/halo2wrong", branch = "halo2-
 halo2curves = { git = "https://github.com/scroll-tech/halo2curves.git", branch = "0.3.1-derive-serde" }
 
 [dependencies]
-prover = { git = "https://github.com/scroll-tech/scroll-prover", tag = "v0.7.5" }
-types = { git = "https://github.com/scroll-tech/scroll-prover", tag = "v0.7.5" }
+prover = { git = "https://github.com/scroll-tech/scroll-prover", tag = "v0.5.16" }
+types = { git = "https://github.com/scroll-tech/scroll-prover", tag = "v0.5.16" }
 halo2_proofs = { git = "https://github.com/scroll-tech/halo2.git", branch = "develop" }
 
-base64 = "0.13.0"
-env_logger = "0.9.0"
-libc = "0.2"
 log = "0.4"
-once_cell = "1.8.0"
+env_logger = "0.9.0"
 serde = "1.0"
 serde_derive = "1.0"
 serde_json = "1.0.66"
+libc = "0.2"
+once_cell = "1.8.0"
+
 
 [profile.test]
 opt-level = 3

common/libzkp/impl/src/batch.rs

@@ -1,14 +1,11 @@
-use crate::{
-    types::{CheckChunkProofsResponse, ProofResult},
-    utils::{c_char_to_str, c_char_to_vec, string_to_c_char, vec_to_c_char, OUTPUT_DIR},
-};
+use crate::utils::{c_char_to_str, c_char_to_vec, vec_to_c_char, OUTPUT_DIR};
 use libc::c_char;
 use prover::{
     aggregator::{Prover, Verifier},
     utils::{chunk_trace_to_witness_block, init_env_and_log},
     BatchProof, ChunkHash, ChunkProof,
 };
-use std::{cell::OnceCell, env, panic, ptr::null};
+use std::{cell::OnceCell, panic, ptr::null};
 use types::eth::BlockTrace;
 
 static mut PROVER: OnceCell<Prover> = OnceCell::new();
@@ -16,15 +13,11 @@ static mut VERIFIER: OnceCell<Verifier> = OnceCell::new();
 
 /// # Safety
 #[no_mangle]
-pub unsafe extern "C" fn init_batch_prover(params_dir: *const c_char, assets_dir: *const c_char) {
+pub unsafe extern "C" fn init_batch_prover(params_dir: *const c_char) {
     init_env_and_log("ffi_batch_prove");
 
     let params_dir = c_char_to_str(params_dir);
-    let assets_dir = c_char_to_str(assets_dir);
-
-    // TODO: add a settings in scroll-prover.
-    env::set_var("SCROLL_PROVER_ASSETS_DIR", assets_dir);
-    let prover = Prover::from_dirs(params_dir, assets_dir);
+    let prover = Prover::from_params_dir(params_dir);
 
     PROVER.set(prover).unwrap();
 }
@@ -37,104 +30,39 @@ pub unsafe extern "C" fn init_batch_verifier(params_dir: *const c_char, assets_d
     let params_dir = c_char_to_str(params_dir);
     let assets_dir = c_char_to_str(assets_dir);
 
-    // TODO: add a settings in scroll-prover.
-    env::set_var("SCROLL_PROVER_ASSETS_DIR", assets_dir);
     let verifier = Verifier::from_dirs(params_dir, assets_dir);
 
     VERIFIER.set(verifier).unwrap();
 }
 
-/// # Safety
-#[no_mangle]
-pub unsafe extern "C" fn get_batch_vk() -> *const c_char {
-    let vk_result = panic::catch_unwind(|| PROVER.get_mut().unwrap().get_vk());
-
-    vk_result
-        .ok()
-        .flatten()
-        .map_or(null(), |vk| string_to_c_char(base64::encode(vk)))
-}
-
-/// # Safety
-#[no_mangle]
-pub unsafe extern "C" fn check_chunk_proofs(chunk_proofs: *const c_char) -> *const c_char {
-    let check_result: Result<bool, String> = panic::catch_unwind(|| {
-        let chunk_proofs = c_char_to_vec(chunk_proofs);
-        let chunk_proofs = serde_json::from_slice::<Vec<ChunkProof>>(&chunk_proofs)
-            .map_err(|e| format!("failed to deserialize chunk proofs: {e:?}"))?;
-
-        if chunk_proofs.is_empty() {
-            return Err("provided chunk proofs are empty.".to_string());
-        }
-
-        let prover_ref = PROVER.get().expect("failed to get reference to PROVER.");
-
-        let valid = prover_ref.check_chunk_proofs(&chunk_proofs);
-        Ok(valid)
-    })
-    .unwrap_or_else(|e| Err(format!("unwind error: {e:?}")));
-
-    let r = match check_result {
-        Ok(valid) => CheckChunkProofsResponse {
-            ok: valid,
-            error: None,
-        },
-        Err(err) => CheckChunkProofsResponse {
-            ok: false,
-            error: Some(err),
-        },
-    };
-
-    serde_json::to_vec(&r).map_or(null(), vec_to_c_char)
-}
-
 /// # Safety
 #[no_mangle]
 pub unsafe extern "C" fn gen_batch_proof(
     chunk_hashes: *const c_char,
     chunk_proofs: *const c_char,
 ) -> *const c_char {
-    let proof_result: Result<Vec<u8>, String> = panic::catch_unwind(|| {
-        let chunk_hashes = c_char_to_vec(chunk_hashes);
-        let chunk_proofs = c_char_to_vec(chunk_proofs);
+    let chunk_hashes = c_char_to_vec(chunk_hashes);
+    let chunk_proofs = c_char_to_vec(chunk_proofs);
 
-        let chunk_hashes = serde_json::from_slice::<Vec<ChunkHash>>(&chunk_hashes)
-            .map_err(|e| format!("failed to deserialize chunk hashes: {e:?}"))?;
-        let chunk_proofs = serde_json::from_slice::<Vec<ChunkProof>>(&chunk_proofs)
-            .map_err(|e| format!("failed to deserialize chunk proofs: {e:?}"))?;
+    let chunk_hashes = serde_json::from_slice::<Vec<ChunkHash>>(&chunk_hashes).unwrap();
+    let chunk_proofs = serde_json::from_slice::<Vec<ChunkProof>>(&chunk_proofs).unwrap();
+    assert_eq!(chunk_hashes.len(), chunk_proofs.len());
 
-        if chunk_hashes.len() != chunk_proofs.len() {
-            return Err(format!("chunk hashes and chunk proofs lengths mismatch: chunk_hashes.len() = {}, chunk_proofs.len() = {}",
-                chunk_hashes.len(), chunk_proofs.len()));
-        }
-
-        let chunk_hashes_proofs = chunk_hashes
-            .into_iter()
-            .zip(chunk_proofs.into_iter())
-            .collect();
+    let chunk_hashes_proofs = chunk_hashes
+        .into_iter()
+        .zip(chunk_proofs.into_iter())
+        .collect();
 
+    let proof_result = panic::catch_unwind(|| {
         let proof = PROVER
             .get_mut()
-            .expect("failed to get mutable reference to PROVER.")
+            .unwrap()
             .gen_agg_evm_proof(chunk_hashes_proofs, None, OUTPUT_DIR.as_deref())
-            .map_err(|e| format!("failed to generate proof: {e:?}"))?;
+            .unwrap();
 
-        serde_json::to_vec(&proof).map_err(|e| format!("failed to serialize the proof: {e:?}"))
-    })
-    .unwrap_or_else(|e| Err(format!("unwind error: {e:?}")));
-
-    let r = match proof_result {
-        Ok(proof_bytes) => ProofResult {
-            message: Some(proof_bytes),
-            error: None,
-        },
-        Err(err) => ProofResult {
-            message: None,
-            error: Some(err),
-        },
-    };
-
-    serde_json::to_vec(&r).map_or(null(), vec_to_c_char)
+        serde_json::to_vec(&proof).unwrap()
+    });
+    proof_result.map_or(null(), vec_to_c_char)
 }
 
 /// # Safety