build: cache gitcache dir (#47407)

build: cache gitcache dir (#47328)

* revert build: migrate to new chromium git auth

* build: cache gitcache dir

Co-authored-by: trop[bot] <37223003+trop[bot]@users.noreply.github.com>
Co-authored-by: John Kleinschmidt <jkleinsc@electronjs.org>

.github/actions/build-git-cache/action.yml

@@ -0,0 +1,83 @@
+name: 'Build Git Cache'
+description: 'Runs a gclient sync to build the git cache for Electron'
+inputs:
+  target-platform:
+    description: 'Target platform, should be linux, win, macos'    
+runs:
+  using: "composite"
+  steps:
+  - name: Set GIT_CACHE_PATH to make gclient to use the cache
+    shell: bash
+    run: |
+      echo "GIT_CACHE_PATH=$(pwd)/git-cache" >> $GITHUB_ENV
+  - name: Set Chromium Git Cookie
+    uses: ./src/electron/.github/actions/set-chromium-cookie
+  - name: Install Build Tools
+    uses: ./src/electron/.github/actions/install-build-tools
+  - name: Set up cache drive
+    shell: bash
+    run: |
+      if [ "${{ inputs.target-platform }}" = "win" ]; then
+        echo "CACHE_DRIVE=/mnt/win-cache" >> $GITHUB_ENV
+      else
+        echo "CACHE_DRIVE=/mnt/cross-instance-cache" >> $GITHUB_ENV
+      fi
+  - name: Check cross instance cache disk space
+    shell: bash
+    run: |    
+      # if there is less than 35 GB free space then creating the cache might fail so exit early
+      freespace=`df -m $CACHE_DRIVE | grep -w $CACHE_DRIVE | awk '{print $4}'`
+      freespace_human=`df -h $CACHE_DRIVE | grep -w $CACHE_DRIVE | awk '{print $4}'`
+      if [ $freespace -le 35000 ]; then
+        echo "The cross mount cache has $freespace_human free space which is not enough - exiting"
+        exit 1
+      else
+        echo "The cross mount cache has $freespace_human free space - continuing"
+      fi
+  - name: Restore gitcache
+    shell: bash
+    run: |
+      GIT_CACHE_TAR="$CACHE_DRIVE/gitcache.tar"
+      if [ ! -f "$GIT_CACHE_TAR" ]; then
+        echo "Git cache tar file does not exist, skipping restore"
+        exit 0
+      fi
+      echo "Restoring git cache from $GIT_CACHE_TAR to $GIT_CACHE_PATH"
+      mkdir -p $GIT_CACHE_PATH
+      tar -xf $GIT_CACHE_TAR -C $GIT_CACHE_PATH
+  - name: Gclient Sync
+    shell: bash
+    run: |
+      e d gclient config \
+        --name "src/electron" \
+        --unmanaged \
+        ${GCLIENT_EXTRA_ARGS} \
+        "$GITHUB_SERVER_URL/$GITHUB_REPOSITORY"
+
+      if [ "$TARGET_OS" != "" ]; then
+        echo "target_os=['$TARGET_OS']" >> ./.gclient
+      fi
+
+      ELECTRON_USE_THREE_WAY_MERGE_FOR_PATCHES=1 e d gclient sync --with_branch_heads --with_tags --nohooks -vv 
+  - name: Compress Git Cache Directory
+    shell: bash
+    run: |
+      echo "Uncompressed gitcache size: $(du -sh $GIT_CACHE_PATH | cut -f1 -d' ')"
+      cd $GIT_CACHE_PATH
+      tar -cf ../gitcache.tar .
+      cd ..
+      echo "Compressed gitcache to $(du -sh gitcache.tar | cut -f1 -d' ')"
+      # remove the old cache file if it exists 
+      if [ -f $CACHE_DRIVE/gitcache.tar ]; then
+        echo "Removing old gitcache.tar from $CACHE_DRIVE"
+        rm $CACHE_DRIVE/gitcache.tar
+      fi      
+      cp ./gitcache.tar $CACHE_DRIVE/
+  - name: Wait for active SSH sessions
+    shell: bash
+    if: always() && !cancelled()
+    run: |
+      while [ -f /var/.ssh-lock ]
+      do
+        sleep 60
+      done

.github/actions/checkout/action.yml

@@ -20,8 +20,8 @@ runs:
       echo "GIT_CACHE_PATH=$(pwd)/git-cache" >> $GITHUB_ENV
   - name: Install Dependencies
     uses: ./src/electron/.github/actions/install-dependencies
-  - name: Set Chromium Git Helper
-    uses: ./src/electron/.github/actions/set-chromium-git-helper
+  - name: Set Chromium Git Cookie
+    uses: ./src/electron/.github/actions/set-chromium-cookie
   - name: Install Build Tools
     uses: ./src/electron/.github/actions/install-build-tools
   - name: Generate DEPS Hash
@@ -83,6 +83,18 @@ runs:
   - name: Add patch conflict problem matcher
     shell: bash
     run: echo "::add-matcher::src/electron/.github/problem-matchers/patch-conflict.json"
+  - name: Restore gitcache
+    if: steps.check-cache.outputs.cache_exists == 'false'
+    shell: bash
+    run: |
+      GIT_CACHE_TAR="$CACHE_DRIVE/gitcache.tar"
+      if [ ! -f "$GIT_CACHE_TAR" ]; then
+        echo "Git cache tar file does not exist, skipping restore"
+        exit 0
+      fi
+      echo "Restoring git cache from $GIT_CACHE_TAR to $GIT_CACHE_PATH"
+      mkdir -p $GIT_CACHE_PATH
+      tar -xf $GIT_CACHE_TAR -C $GIT_CACHE_PATH
   - name: Gclient Sync
     if: steps.check-cache.outputs.cache_exists == 'false'
     shell: bash

.github/actions/set-chromium-cookie/action.yml

@@ -0,0 +1,58 @@
+name: 'Set Chromium Git Cookie'
+description: 'Sets an authenticated cookie from Chromium to allow for a higher request limit'
+runs:
+  using: "composite"
+  steps:
+  - name: Set the git cookie from chromium.googlesource.com (Unix)
+    if: ${{ runner.os != 'Windows' }}
+    shell: bash
+    run: |
+      if [[ -z "${{ env.CHROMIUM_GIT_COOKIE }}" ]]; then
+        echo "CHROMIUM_GIT_COOKIE is not set - cannot authenticate."
+        exit 0
+      fi
+
+      eval 'set +o history' 2>/dev/null || setopt HIST_IGNORE_SPACE 2>/dev/null
+      touch ~/.gitcookies
+      chmod 0600 ~/.gitcookies
+
+      git config --global http.cookiefile ~/.gitcookies
+
+      tr , \\t <<\__END__ >>~/.gitcookies
+      ${{ env.CHROMIUM_GIT_COOKIE }}
+      __END__
+      eval 'set -o history' 2>/dev/null || unsetopt HIST_IGNORE_SPACE 2>/dev/null
+
+      RESPONSE=$(curl -s -b ~/.gitcookies https://chromium-review.googlesource.com/a/accounts/self)
+      if [[ $RESPONSE == ")]}'"* ]]; then
+        # Extract account email for verification
+        EMAIL=$(echo "$RESPONSE" | tail -c +5 | jq -r '.email // "No email found"')
+        echo "Cookie authentication successful - authenticated as: $EMAIL"
+      else
+        echo "Cookie authentication failed - ensure CHROMIUM_GIT_COOKIE is set correctly"
+        echo $RESPONSE
+      fi
+  - name: Set the git cookie from chromium.googlesource.com (Windows)
+    if: ${{ runner.os == 'Windows' }}
+    shell: cmd
+    run: |
+      if "%CHROMIUM_GIT_COOKIE_WINDOWS_STRING%"=="" (
+        echo CHROMIUM_GIT_COOKIE_WINDOWS_STRING is not set - cannot authenticate.
+        exit /b 0
+      )
+
+      git config --global http.cookiefile "%USERPROFILE%\.gitcookies"
+      powershell -noprofile -nologo -command Write-Output "${{ env.CHROMIUM_GIT_COOKIE_WINDOWS_STRING }}" >>"%USERPROFILE%\.gitcookies"
+
+      curl -s -b "%USERPROFILE%\.gitcookies" https://chromium-review.googlesource.com/a/accounts/self > response.txt
+
+      findstr /B /C:")]}'" response.txt > nul
+      if %ERRORLEVEL% EQU 0 (
+        echo Cookie authentication successful
+        powershell -NoProfile -Command "& {$content = Get-Content -Raw response.txt; $content = $content.Substring(4); try { $json = ConvertFrom-Json $content; if($json.email) { Write-Host 'Authenticated as:' $json.email } else { Write-Host 'No email found in response' } } catch { Write-Host 'Error parsing JSON:' $_ }}"
+      ) else (
+        echo Cookie authentication failed - ensure CHROMIUM_GIT_COOKIE_WINDOWS_STRING is set correctly
+        type response.txt
+      )
+
+      del response.txt

.github/actions/set-chromium-git-helper/action.yml

@@ -1,41 +0,0 @@
-name: 'Set Chromium Git Helper'
-description: 'Sets Chromium Git Helper to allow for a higher request limit'
-runs:
-  using: "composite"
-  steps:
-  - name: Save the chromium git credentials to a file
-    shell: bash
-    run: |
-      if [[ -z "${{ env.CHROMIUM_GIT_AUTH }}" ]]; then
-        echo "CHROMIUM_GIT_AUTH is not set - cannot authenticate."
-        exit 0
-      fi
-      if [[ "${{ runner.os }}" != "Windows" ]]; then
-        cd $HOME
-      fi
-      echo "${{ env.CHROMIUM_GIT_AUTH }}" > .chromium_git_auth
-  
-  - name: Set the chromium git helper to use auth from a file
-    shell: bash
-    run: |
-      if [[ "${{ runner.os }}" == "Windows" ]]; then
-        if [[ ! -f "/c/actions-runner/_work/electron/electron/.chromium_git_auth" ]]; then
-          echo "File /c/actions-runner/_work/electron/electron/.chromium_git_auth does not exist - cannot authenticate."
-          exit 0
-        fi
-      else
-        if [[ ! -f "$HOME/.chromium_git_auth" ]]; then
-          echo "File $HOME/.chromium_git_auth does not exist - cannot authenticate."
-          exit 0
-        fi
-      fi
-      if [[ -z "${{ env.CHROMIUM_GIT_USER }}" ]]; then
-        echo "CHROMIUM_GIT_USER is not set - cannot authenticate."
-        exit 0
-      fi
-      git config --global credential.https://chromium.googlesource.com.username "${{ env.CHROMIUM_GIT_USER }}"
-      if [[ "${{ runner.os }}" == "Windows" ]]; then
-        git config --global credential.https://chromium.googlesource.com.helper '!f() { test "$1" = get && echo "password=$(cat /c/actions-runner/_work/electron/electron/.chromium_git_auth)"; }; f'
-      else
-        git config --global credential.https://chromium.googlesource.com.helper '!f() { test "$1" = get && echo "password=$(cat $HOME/.chromium_git_auth)"; }; f'
-      fi

.github/workflows/build-git-cache.yml

@@ -0,0 +1,74 @@
+name: Build Git Cache
+# This workflow updates git cache on the cross-instance cache volumes
+# It runs daily at midnight.
+
+on:  
+  schedule:
+    - cron: "0 0 * * *"
+
+jobs:
+  build-git-cache-linux:
+    runs-on: electron-arc-linux-amd64-32core
+    container:
+      image: ghcr.io/electron/build:bc2f48b2415a670de18d13605b1cf0eb5fdbaae1
+      options: --user root
+      volumes:
+        - /mnt/cross-instance-cache:/mnt/cross-instance-cache
+    env:
+      CHROMIUM_GIT_COOKIE: ${{ secrets.CHROMIUM_GIT_COOKIE }}      
+      GCLIENT_EXTRA_ARGS: '--custom-var=checkout_arm=True --custom-var=checkout_arm64=True'
+    steps:
+    - name: Checkout Electron
+      uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683
+      with:
+        path: src/electron
+        fetch-depth: 0
+    - name: Build Git Cache
+      uses: ./src/electron/.github/actions/build-git-cache
+      with:
+        target-platform: linux
+
+  build-git-cache-windows:
+    runs-on: electron-arc-linux-amd64-32core
+    container:
+      image: ghcr.io/electron/build:bc2f48b2415a670de18d13605b1cf0eb5fdbaae1
+      options: --user root --device /dev/fuse --cap-add SYS_ADMIN
+      volumes:
+        - /mnt/win-cache:/mnt/win-cache
+    env:
+      CHROMIUM_GIT_COOKIE: ${{ secrets.CHROMIUM_GIT_COOKIE }}
+      GCLIENT_EXTRA_ARGS: '--custom-var=checkout_win=True'
+      TARGET_OS: 'win'
+    steps:
+    - name: Checkout Electron
+      uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683
+      with:
+        path: src/electron
+        fetch-depth: 0
+    - name: Build Git Cache
+      uses: ./src/electron/.github/actions/build-git-cache
+      with:
+        target-platform: win
+
+  build-git-cache-macos:
+    runs-on: electron-arc-linux-amd64-32core
+    # This job updates the same git cache as linux, so it needs to run after the linux one.
+    needs: build-git-cache-linux
+    container:
+      image: ghcr.io/electron/build:bc2f48b2415a670de18d13605b1cf0eb5fdbaae1
+      options: --user root
+      volumes:
+        - /mnt/cross-instance-cache:/mnt/cross-instance-cache
+    env:
+      CHROMIUM_GIT_COOKIE: ${{ secrets.CHROMIUM_GIT_COOKIE }}
+      GCLIENT_EXTRA_ARGS: '--custom-var=checkout_mac=True --custom-var=host_os=mac'
+    steps:
+    - name: Checkout Electron
+      uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683
+      with:
+        path: src/electron
+        fetch-depth: 0
+    - name: Build Git Cache
+      uses: ./src/electron/.github/actions/build-git-cache
+      with:
+        target-platform: macos

.github/workflows/build.yml

@@ -100,8 +100,7 @@ jobs:
         - /mnt/cross-instance-cache:/mnt/cross-instance-cache
         - /var/run/sas:/var/run/sas
     env:
-      CHROMIUM_GIT_AUTH: ${{ secrets.CHROMIUM_GIT_AUTH }}
-      CHROMIUM_GIT_USER: ${{ secrets.CHROMIUM_GIT_USER }}
+      CHROMIUM_GIT_COOKIE: ${{ secrets.CHROMIUM_GIT_COOKIE }}
       GCLIENT_EXTRA_ARGS: '--custom-var=checkout_mac=True --custom-var=host_os=mac'
     outputs:
       build-image-sha: ${{ needs.setup.outputs.build-image-sha }}
@@ -129,8 +128,7 @@ jobs:
         - /mnt/cross-instance-cache:/mnt/cross-instance-cache
         - /var/run/sas:/var/run/sas
     env:
-      CHROMIUM_GIT_AUTH: ${{ secrets.CHROMIUM_GIT_AUTH }}
-      CHROMIUM_GIT_USER: ${{ secrets.CHROMIUM_GIT_USER }}
+      CHROMIUM_GIT_COOKIE: ${{ secrets.CHROMIUM_GIT_COOKIE }}     
       GCLIENT_EXTRA_ARGS: '--custom-var=checkout_arm=True --custom-var=checkout_arm64=True'
       PATCH_UP_APP_CREDS: ${{ secrets.PATCH_UP_APP_CREDS }}
     outputs:
@@ -156,8 +154,8 @@ jobs:
         - /mnt/win-cache:/mnt/win-cache
         - /var/run/sas:/var/run/sas
     env:
-      CHROMIUM_GIT_AUTH: ${{ secrets.CHROMIUM_GIT_AUTH }}
-      CHROMIUM_GIT_USER: ${{ secrets.CHROMIUM_GIT_USER }}
+      CHROMIUM_GIT_COOKIE: ${{ secrets.CHROMIUM_GIT_COOKIE }}
+      CHROMIUM_GIT_COOKIE_WINDOWS_STRING: ${{ secrets.CHROMIUM_GIT_COOKIE_WINDOWS_STRING }}
       GCLIENT_EXTRA_ARGS: '--custom-var=checkout_win=True'
       TARGET_OS: 'win'
       ELECTRON_DEPOT_TOOLS_WIN_TOOLCHAIN: '1'

.github/workflows/linux-publish.yml

@@ -27,8 +27,7 @@ jobs:
         - /mnt/cross-instance-cache:/mnt/cross-instance-cache
         - /var/run/sas:/var/run/sas
     env:
-      CHROMIUM_GIT_AUTH: ${{ secrets.CHROMIUM_GIT_AUTH }}
-      CHROMIUM_GIT_USER: ${{ secrets.CHROMIUM_GIT_USER }}
+      CHROMIUM_GIT_COOKIE: ${{ secrets.CHROMIUM_GIT_COOKIE }}
       GCLIENT_EXTRA_ARGS: '--custom-var=checkout_arm=True --custom-var=checkout_arm64=True'
     steps:
     - name: Checkout Electron

.github/workflows/macos-publish.yml

@@ -28,8 +28,7 @@ jobs:
         - /mnt/cross-instance-cache:/mnt/cross-instance-cache
         - /var/run/sas:/var/run/sas
     env:
-      CHROMIUM_GIT_AUTH: ${{ secrets.CHROMIUM_GIT_AUTH }}
-      CHROMIUM_GIT_USER: ${{ secrets.CHROMIUM_GIT_USER }}
+      CHROMIUM_GIT_COOKIE: ${{ secrets.CHROMIUM_GIT_COOKIE }}
       GCLIENT_EXTRA_ARGS: '--custom-var=checkout_mac=True --custom-var=host_os=mac'
     steps:
     - name: Checkout Electron

.github/workflows/pipeline-electron-lint.yml

@@ -13,8 +13,7 @@ concurrency:
   cancel-in-progress: ${{ github.ref_protected != true }}
 
 env:
-  CHROMIUM_GIT_AUTH: ${{ secrets.CHROMIUM_GIT_AUTH }}
-  CHROMIUM_GIT_USER: ${{ secrets.CHROMIUM_GIT_USER }}
+  CHROMIUM_GIT_COOKIE: ${{ secrets.CHROMIUM_GIT_COOKIE }}  
 
 jobs:
   lint:
@@ -31,8 +30,8 @@ jobs:
         ref: ${{ github.event.pull_request.head.sha }}
     - name: Install Dependencies
       uses: ./src/electron/.github/actions/install-dependencies
-    - name: Set Chromium Git Helper
-      uses: ./src/electron/.github/actions/set-chromium-git-helper
+    - name: Set Chromium Git Cookie
+      uses: ./src/electron/.github/actions/set-chromium-cookie
     - name: Setup third_party Depot Tools
       shell: bash
       run: |

.github/workflows/pipeline-segment-electron-build.yml

@@ -65,8 +65,8 @@ concurrency:
   cancel-in-progress: ${{ github.ref_protected != true }}
 
 env:
-  CHROMIUM_GIT_AUTH: ${{ secrets.CHROMIUM_GIT_AUTH }}
-  CHROMIUM_GIT_USER: ${{ secrets.CHROMIUM_GIT_USER }}
+  CHROMIUM_GIT_COOKIE: ${{ secrets.CHROMIUM_GIT_COOKIE }}
+  CHROMIUM_GIT_COOKIE_WINDOWS_STRING: ${{ secrets.CHROMIUM_GIT_COOKIE_WINDOWS_STRING }}
   ELECTRON_ARTIFACTS_BLOB_STORAGE: ${{ secrets.ELECTRON_ARTIFACTS_BLOB_STORAGE }}
   ELECTRON_RBE_JWT: ${{ secrets.ELECTRON_RBE_JWT }}
   SUDOWOODO_EXCHANGE_URL: ${{ secrets.SUDOWOODO_EXCHANGE_URL }}
@@ -127,8 +127,8 @@ jobs:
           GN_EXTRA_ARGS='is_asan=true'
         fi
         echo "GN_EXTRA_ARGS=$GN_EXTRA_ARGS" >> $GITHUB_ENV
-    - name: Set Chromium Git Helper
-      uses: ./src/electron/.github/actions/set-chromium-git-helper
+    - name: Set Chromium Git Cookie
+      uses: ./src/electron/.github/actions/set-chromium-cookie
     - name: Install Build Tools
       uses: ./src/electron/.github/actions/install-build-tools      
     - name: Generate DEPS Hash

.github/workflows/pipeline-segment-electron-gn-check.yml

@@ -66,8 +66,8 @@ jobs:
     - name: Check disk space after freeing up space
       if: ${{ inputs.target-platform == 'macos' }}
       run: df -h
-    - name: Set Chromium Git Helper
-      uses: ./src/electron/.github/actions/set-chromium-git-helper
+    - name: Set Chromium Git Cookie
+      uses: ./src/electron/.github/actions/set-chromium-cookie
     - name: Install Build Tools
       uses: ./src/electron/.github/actions/install-build-tools
     - name: Enable windows toolchain

.github/workflows/pipeline-segment-electron-test.yml

@@ -36,8 +36,8 @@ permissions:
   pull-requests: read
 
 env:
-  CHROMIUM_GIT_AUTH: ${{ secrets.CHROMIUM_GIT_AUTH }}
-  CHROMIUM_GIT_USER: ${{ secrets.CHROMIUM_GIT_USER }}
+  CHROMIUM_GIT_COOKIE: ${{ secrets.CHROMIUM_GIT_COOKIE }}
+  CHROMIUM_GIT_COOKIE_WINDOWS_STRING: ${{ secrets.CHROMIUM_GIT_COOKIE_WINDOWS_STRING }}
   ELECTRON_OUT_DIR: Default
   ELECTRON_RBE_JWT: ${{ secrets.ELECTRON_RBE_JWT }}
 
@@ -126,8 +126,8 @@ jobs:
         ref: ${{ github.event.pull_request.head.sha }}
     - name: Install Dependencies
       uses: ./src/electron/.github/actions/install-dependencies
-    - name: Set Chromium Git Helper
-      uses: ./src/electron/.github/actions/set-chromium-git-helper
+    - name: Set Chromium Git Cookie
+      uses: ./src/electron/.github/actions/set-chromium-cookie
     - name: Get Depot Tools
       timeout-minutes: 5
       run: |

.github/workflows/pipeline-segment-node-nan-test.yml

@@ -31,8 +31,7 @@ concurrency:
   cancel-in-progress: ${{ github.ref_protected != true }}
 
 env:
-  CHROMIUM_GIT_AUTH: ${{ secrets.CHROMIUM_GIT_AUTH }}
-  CHROMIUM_GIT_USER: ${{ secrets.CHROMIUM_GIT_USER }}
+  CHROMIUM_GIT_COOKIE: ${{ secrets.CHROMIUM_GIT_COOKIE }}
   ELECTRON_OUT_DIR: Default
   ELECTRON_RBE_JWT: ${{ secrets.ELECTRON_RBE_JWT }}
 
@@ -52,8 +51,8 @@ jobs:
         path: src/electron
         fetch-depth: 0
         ref: ${{ github.event.pull_request.head.sha }}
-    - name: Set Chromium Git Helper
-      uses: ./src/electron/.github/actions/set-chromium-git-helper
+    - name: Set Chromium Git Cookie
+      uses: ./src/electron/.github/actions/set-chromium-cookie
     - name: Install Build Tools
       uses: ./src/electron/.github/actions/install-build-tools
     - name: Init Build Tools
@@ -106,8 +105,8 @@ jobs:
         path: src/electron
         fetch-depth: 0
         ref: ${{ github.event.pull_request.head.sha }}
-    - name: Set Chromium Git Helper
-      uses: ./src/electron/.github/actions/set-chromium-git-helper
+    - name: Set Chromium Git Cookie
+      uses: ./src/electron/.github/actions/set-chromium-cookie
     - name: Install Build Tools
       uses: ./src/electron/.github/actions/install-build-tools
     - name: Init Build Tools

.github/workflows/windows-publish.yml

@@ -28,8 +28,7 @@ jobs:
         - /mnt/win-cache:/mnt/win-cache
         - /var/run/sas:/var/run/sas
     env:
-      CHROMIUM_GIT_AUTH: ${{ secrets.CHROMIUM_GIT_AUTH }}
-      CHROMIUM_GIT_USER: ${{ secrets.CHROMIUM_GIT_USER }}
+      CHROMIUM_GIT_COOKIE_WINDOWS_STRING: ${{ secrets.CHROMIUM_GIT_COOKIE_WINDOWS_STRING }}
       GCLIENT_EXTRA_ARGS: '--custom-var=checkout_win=True'
       TARGET_OS: 'win'
       ELECTRON_DEPOT_TOOLS_WIN_TOOLCHAIN: '1'