fix: disable caching when working directory is outside GITHUB_WORKSPACE

Co-authored-by: neilime <[email protected]>

Author: Copilot

actions/get-package-manager/action.yml

@@ -91,23 +91,26 @@ runs:
           }
 
           let relativeWorkingDirectory = path.relative(process.env.GITHUB_WORKSPACE, workingDirectory) || '.';
+          let isOutsideWorkspace = false;
+
           if (relativeWorkingDirectory.startsWith('../')) {
-            relativeWorkingDirectory = path.resolve(workingDirectory);
+            core.warning(`Working directory "${workingDirectory}" is outside GITHUB_WORKSPACE. Caching will be disabled for setup-node.`);
+            isOutsideWorkspace = true;
           }
 
           const packageManagerConfig = {
             yarn: {
-              cacheDependencyPath: `${relativeWorkingDirectory}/**/yarn.lock`,
+              cacheDependencyPath: isOutsideWorkspace ? '' : `${relativeWorkingDirectory}/**/yarn.lock`,
               installCommand: 'yarn install --frozen-lockfile',
               runScriptCommand: 'yarn',
             },
             pnpm: {
-              cacheDependencyPath: `${relativeWorkingDirectory}/**/pnpm-lock.yaml`,
+              cacheDependencyPath: isOutsideWorkspace ? '' : `${relativeWorkingDirectory}/**/pnpm-lock.yaml`,
               installCommand: 'pnpm install --frozen-lockfile',
               runScriptCommand: 'pnpm',
             },
             npm: {
-              cacheDependencyPath: `${relativeWorkingDirectory}/**/package-lock.json`,
+              cacheDependencyPath: isOutsideWorkspace ? '' : `${relativeWorkingDirectory}/**/package-lock.json`,
               installCommand: 'npm ci',
               runScriptCommand: 'npm run',
             },

actions/setup-node/action.yml

@@ -138,7 +138,7 @@ runs:
     - uses: actions/setup-node@2028fbc5c25fe9cf00d9f06a71cc4710d4507903 # v6.0.0
       with:
         node-version-file: ${{ steps.get-node-version-file.outputs.node-version-file }}
-        cache: ${{ steps.get-package-manager.outputs.package-manager }}
+        cache: ${{ steps.get-package-manager.outputs.cache-dependency-path != '' && steps.get-package-manager.outputs.package-manager || '' }}
         cache-dependency-path: ${{ steps.get-package-manager.outputs.cache-dependency-path }}
 
     - shell: bash