chore: update scripts to download snark artifacts

Former-commit-id: d9c069784f

scripts/download-snark-artifacts.ts

@@ -0,0 +1,24 @@
+import download from "download"
+import fs from "fs"
+import { config } from "../package.json"
+
+async function main() {
+    const snarkArtifactsPath = config.paths.build["snark-artifacts"]
+    const url = `http://www.trusted-setup-pse.org/semaphore/${process.env.TREE_DEPTH}`
+
+    if (!fs.existsSync(snarkArtifactsPath)) {
+        fs.mkdirSync(snarkArtifactsPath, { recursive: true })
+    }
+
+    if (!fs.existsSync(`${snarkArtifactsPath}/semaphore.zkey`)) {
+        await download(`${url}/semaphore.wasm`, snarkArtifactsPath)
+        await download(`${url}/semaphore.zkey`, snarkArtifactsPath)
+    }
+}
+
+main()
+    .then(() => process.exit(0))
+    .catch((error) => {
+        console.error(error)
+        process.exit(1)
+    })

scripts/download-zk-files.ts

@@ -1,25 +0,0 @@
-import download from "download"
-import fs from "fs"
-import { config } from "../package.json"
-
-async function main() {
-    const buildPath = config.paths.build["zk-files"]
-    const url = "http://www.trusted-setup-pse.org/semaphore/semaphore.zip"
-
-    if (!fs.existsSync(buildPath)) {
-        fs.mkdirSync(buildPath, { recursive: true })
-    }
-
-    if (!fs.existsSync(`${buildPath}/16/semaphore.zkey`)) {
-        await download(url, buildPath, {
-            extract: true
-        })
-    }
-}
-
-main()
-    .then(() => process.exit(0))
-    .catch((error) => {
-        console.error(error)
-        process.exit(1)
-    })

scripts/generate-verifiers.ts

@@ -1,37 +0,0 @@
-import fs from "fs"
-import logger from "js-logger"
-import { zKey } from "snarkjs"
-import { config } from "../package.json"
-
-logger.useDefaults()
-
-async function main() {
-    const buildPath = config.paths.build["zk-files"]
-    const contractsPath = config.paths.contracts
-    const templatesPath = config.paths["snarkjs-templates"]
-    const solidityVersion = config.solidity.version
-
-    if (fs.existsSync(`${buildPath}/16/semaphore.zkey`)) {
-        for (let treeDepth = 16; treeDepth <= 32; treeDepth++) {
-            let verifierCode = await zKey.exportSolidityVerifier(
-                `${buildPath}/${treeDepth}/semaphore.zkey`,
-                { groth16: fs.readFileSync(`${templatesPath}/verifier_groth16.sol.ejs`, "utf8") },
-                logger
-            )
-            verifierCode = verifierCode.replace(
-                /pragma solidity \^\d+\.\d+\.\d+/,
-                `pragma solidity ^${solidityVersion}`
-            )
-            verifierCode = verifierCode.replace(/Verifier/, `Verifier${treeDepth}`)
-
-            fs.writeFileSync(`${contractsPath}/verifiers/Verifier${treeDepth}.sol`, verifierCode, "utf-8")
-        }
-    }
-}
-
-main()
-    .then(() => process.exit(0))
-    .catch((error) => {
-        console.error(error)
-        process.exit(1)
-    })