Merge d5bd7e8c9a into b906affcce

This reverts commit 9b5745cdf0.

.github/workflows/test.yaml

@@ -22,7 +22,7 @@ jobs:
           - windows-latest
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4.3.1
 
       - name: Run the action
         uses: ./
@@ -51,7 +51,7 @@ jobs:
           - windows-latest
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4.3.1
 
       - name: Run the action
         uses: ./
@@ -74,8 +74,8 @@ jobs:
       fail-fast: false
       matrix:
         os:
+          # macos is excluded from this test because node 12 is no longer available on this platform
           - ubuntu-latest
-          - macos-latest
           - windows-latest
 
         standalone:
@@ -83,7 +83,7 @@ jobs:
           - false
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4.3.1
 
       - name: Run the action
         uses: ./
@@ -92,7 +92,7 @@ jobs:
           standalone: ${{ matrix.standalone }}
 
       - name: install Node.js
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020 # v4.4.0
         with:
           # pnpm@7.0.0 is not compatible with Node.js 12
           node-version: 12.22.12
@@ -160,7 +160,7 @@ jobs:
                 - yarn
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4.3.1
 
       - name: Run the action
         uses: ./

src/install-pnpm/run.ts

@@ -5,6 +5,7 @@ import { readFileSync } from 'fs'
 import path from 'path'
 import { execPath } from 'process'
 import util from 'util'
+import * as yaml from 'yaml'
 import { Inputs } from '../inputs'
 import { parse as parseYaml } from 'yaml'
 
@@ -95,10 +96,18 @@ Otherwise, please specify the pnpm version in the action configuration.`)
   }
 
   if (typeof packageManager !== 'string') {
-    throw new Error(`No pnpm version is specified.
+    if (GITHUB_WORKSPACE) {
+      try {
+        const { lockfileVersion } = yaml.parse(readFileSync(path.join(GITHUB_WORKSPACE, 'pnpm-lock.yaml'), 'utf8'))
+        const version = getPnpmVersionFromLockfile(lockfileVersion);
+        return `${ standalone ? '@pnpm/exe' : 'pnpm' }@${version}`
+      } catch (error: unknown) {
+        throw new Error(`No pnpm version is specified.
 Please specify it by one of the following ways:
   - in the GitHub Action config with the key "version"
   - in the package.json with the key "packageManager"`)
+      }
+    }
   }
 
   if (!packageManager.startsWith('pnpm@')) {
@@ -112,4 +121,21 @@ Please specify it by one of the following ways:
   return packageManager
 }
 
+function getPnpmVersionFromLockfile(
+  lockfileVersion: string | undefined
+): string | undefined {
+  switch (true) {
+    case lockfileVersion === '5.3':
+      return 'latest-6';
+    case lockfileVersion === '5.4':
+      return 'latest-7';
+    case lockfileVersion === '6.0' || lockfileVersion === '6.1':
+      return 'latest-8';
+    case lockfileVersion === '7.0' || lockfileVersion === '9.0':
+      return 'latest-9';
+    default:
+      return undefined;
+  }
+}
+
 export default runSelfInstaller