test: speed up isolated next instance test setup

.github/actions/next-stats-action/src/prepare/repo-setup.js

@@ -1,5 +1,7 @@
 const path = require('path')
-const fs = require('fs-extra')
+const fse = require('fs-extra')
+const fs = require('fs')
+const fsp = require('fs/promises')
 const exec = require('../util/exec')
 const { remove } = require('fs-extra')
 const logger = require('../util/logger')
@@ -52,13 +54,25 @@ module.exports = (actionInfo) => {
         }
       }
     },
-    async linkPackages({ repoDir, nextSwcVersion }) {
+    async linkPackages({ repoDir, nextSwcVersion, usePnpmPack = false }) {
       const pkgPaths = new Map()
+
+      /**
+       * @typedef {Object} PkgData
+       * @property {string} pkgDataPath Where the package.json file is located
+       * @property {string} pkg The folder name of the package
+       * @property {string} pkgPath The path to the package folder
+       * @property {any} pkgData The content of package.json
+       * @property {string} packedPkgPath The npm pack output .tgz file path
+       */
+
+      /** @type {Map<string, PkgData>} */
       const pkgDatas = new Map()
+
       let pkgs
 
       try {
-        pkgs = await fs.readdir(path.join(repoDir, 'packages'))
+        pkgs = await fsp.readdir(path.join(repoDir, 'packages'))
       } catch (err) {
         if (err.code === 'ENOENT') {
           require('console').log('no packages to link')
@@ -76,7 +90,7 @@ module.exports = (actionInfo) => {
           require('console').log(`Skipping ${pkgDataPath}`)
           continue
         }
-        const pkgData = require(pkgDataPath)
+        const pkgData = await fse.readJSON(pkgDataPath)
         const { name } = pkgData
 
         pkgDatas.set(name, {
@@ -89,47 +103,57 @@ module.exports = (actionInfo) => {
         pkgPaths.set(name, packedPkgPath)
       }
 
-      for (const pkg of pkgDatas.keys()) {
-        const { pkgDataPath, pkgData } = pkgDatas.get(pkg)
-
-        for (const pkg of pkgDatas.keys()) {
-          const { packedPkgPath } = pkgDatas.get(pkg)
+      for (const [
+        pkg,
+        { pkgDataPath, pkgData, pkgPath },
+      ] of pkgDatas.entries()) {
+        // update the current package dependencies to point to packed tgz path
+        for (const [pkg, { packedPkgPath }] of pkgDatas.entries()) {
           if (!pkgData.dependencies || !pkgData.dependencies[pkg]) continue
           pkgData.dependencies[pkg] = packedPkgPath
         }
 
         // make sure native binaries are included in local linking
         if (pkg === '@next/swc') {
-          if (!pkgData.files) {
-            pkgData.files = []
-          }
+          pkgData.files ||= []
+
           pkgData.files.push('native')
-          require('console').log(
-            'using swc binaries: ',
-            await exec(`ls ${path.join(path.dirname(pkgDataPath), 'native')}`)
-          )
-        }
 
-        if (pkg === 'next') {
+          try {
+            const swcBinariesDirContents = await fsp.readdir(
+              path.join(pkgPath, 'native')
+            )
+            require('console').log(
+              'using swc binaries: ',
+              swcBinariesDirContents.join(', ')
+            )
+          } catch (err) {
+            if (err.code === 'ENOENT') {
+              require('console').log('swc binaries dir is missing!')
+            }
+            throw err
+          }
+        } else if (pkg === 'next') {
+          const nextSwcPkg = pkgDatas.get('@next/swc')
+
           console.log('using swc dep', {
             nextSwcVersion,
-            nextSwcPkg: pkgDatas.get('@next/swc'),
+            nextSwcPkg,
           })
           if (nextSwcVersion) {
             Object.assign(pkgData.dependencies, {
               '@next/swc-linux-x64-gnu': nextSwcVersion,
             })
           } else {
-            if (pkgDatas.get('@next/swc')) {
-              pkgData.dependencies['@next/swc'] =
-                pkgDatas.get('@next/swc').packedPkgPath
+            if (nextSwcPkg) {
+              pkgData.dependencies['@next/swc'] = nextSwcPkg.packedPkgPath
             } else {
               pkgData.files.push('native')
             }
           }
         }
 
-        await fs.writeFile(
+        await fsp.writeFile(
           pkgDataPath,
           JSON.stringify(pkgData, null, 2),
           'utf8'
@@ -139,41 +163,51 @@ module.exports = (actionInfo) => {
       // wait to pack packages until after dependency paths have been updated
       // to the correct versions
       await Promise.all(
-        Array.from(pkgDatas.keys()).map(async (pkgName) => {
-          const { pkgPath, packedPkgPath } = pkgDatas.get(pkgName)
-
-          let cleanup = null
-
-          if (pkgName === '@next/swc') {
-            // next-swc uses a gitignore to prevent the committing of native builds but it doesn't
-            // use files in package.json because it publishes to individual packages based on architecture.
-            // When we used yarn to pack these packages the gitignore was ignored so the native builds were packed
-            // however npm does respect gitignore when packing so we need to remove it in this specific case
-            // to ensure the native builds are packed for use in gh actions and related scripts
-            await fs.rename(
-              path.join(pkgPath, 'native/.gitignore'),
-              path.join(pkgPath, 'disabled-native-gitignore')
-            )
-            cleanup = async () => {
-              await fs.rename(
-                path.join(pkgPath, 'disabled-native-gitignore'),
-                path.join(pkgPath, 'native/.gitignore')
+        Array.from(pkgDatas.entries()).map(
+          async ([pkgName, { pkgPath, packedPkgPath }]) => {
+            /** @type {null | () => Promise<void>} */
+            let cleanup = null
+
+            if (pkgName === '@next/swc') {
+              // next-swc uses a gitignore to prevent the committing of native builds but it doesn't
+              // use files in package.json because it publishes to individual packages based on architecture.
+              // When we used yarn to pack these packages the gitignore was ignored so the native builds were packed
+              // however npm does respect gitignore when packing so we need to remove it in this specific case
+              // to ensure the native builds are packed for use in gh actions and related scripts
+
+              const nativeGitignorePath = path.join(
+                pkgPath,
+                'native/.gitignore'
+              )
+              const renamedGitignorePath = path.join(
+                pkgPath,
+                'disabled-native-gitignore'
               )
+
+              await fsp.rename(nativeGitignorePath, renamedGitignorePath)
+              cleanup = async () => {
+                await fsp.rename(renamedGitignorePath, nativeGitignorePath)
+              }
             }
-          }
 
-          const { stdout } = await execa('npm', ['pack'], {
-            cwd: pkgPath,
-            env: {
-              ...process.env,
-              COREPACK_ENABLE_STRICT: '0',
-            },
-          })
-          await fs.rename(path.resolve(pkgPath, stdout.trim()), packedPkgPath)
-          if (cleanup) {
-            await cleanup()
+            const { stdout } = await execa(
+              usePnpmPack ? 'pnpm' : 'npm',
+              ['pack'],
+              {
+                cwd: pkgPath,
+                env: {
+                  ...process.env,
+                  COREPACK_ENABLE_STRICT: '0',
+                },
+              }
+            )
+
+            return Promise.all([
+              fsp.rename(path.resolve(pkgPath, stdout.trim()), packedPkgPath),
+              cleanup?.(),
+            ])
           }
-        })
+        )
       )
       return pkgPaths
     },

test/lib/create-next-install.js

@@ -16,8 +16,8 @@ const { linkPackages } =
  * @param {string} cwd - The project directory where pnpm configuration is set.
  * @returns {Promise<void>}
  */
-async function setPnpmResolutionMode(cwd) {
-  await execa(
+function setPnpmResolutionMode(cwd) {
+  return execa(
     'pnpm',
     ['config', 'set', '--location=project', 'resolution-mode', 'highest'],
     {
@@ -99,8 +99,8 @@ async function createNextInstall({
         for (const item of ['package.json', 'packages']) {
           await rootSpan
             .traceChild(`copy ${item} to temp dir`)
-            .traceAsyncFn(async () => {
-              await fs.copy(
+            .traceAsyncFn(() =>
+              fs.copy(
                 path.join(origRepoDir, item),
                 path.join(tmpRepoDir, item),
                 {
@@ -116,12 +116,13 @@ async function createNextInstall({
                   },
                 }
               )
-            })
+            )
         }
 
         pkgPaths = await rootSpan.traceChild('linkPackages').traceAsyncFn(() =>
           linkPackages({
             repoDir: tmpRepoDir,
+            usePnpmPack: true,
           })
         )
       }
@@ -177,7 +178,7 @@ async function createNextInstall({
       } else {
         await rootSpan
           .traceChild('run generic install command')
-          .traceAsyncFn(async () => {
+          .traceAsyncFn(() => {
             const args = [
               'install',
               '--strict-peer-dependencies=false',
@@ -188,7 +189,7 @@ async function createNextInstall({
               args.push('--prefer-offline')
             }
 
-            await execa('pnpm', args, {
+            return execa('pnpm', args, {
               cwd: installDir,
               stdio: ['ignore', 'inherit', 'inherit'],
               env: process.env,