fix(ci): Use relative paths for cache to fix host/container mismatch

github.workspace resolves to different absolute paths on the host
(/home/runner/work/...) vs inside a container (/__w/...), causing
cache version hash mismatches. Use relative paths instead, which
actions/cache resolves from the working directory.

Bust cache key to v3 since the path format changed.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: mydea

.github/workflows/build.yml

@@ -28,25 +28,21 @@ concurrency:
 env:
   HEAD_COMMIT: ${{ github.event.inputs.commit || github.sha }}
 
-  # WARNING: this disables cross os caching as ~ and
-  # github.workspace evaluate to differents paths
   CACHED_DEPENDENCY_PATHS: |
-    ${{ github.workspace }}/node_modules
-    ${{ github.workspace }}/packages/*/node_modules
-    ${{ github.workspace }}/dev-packages/*/node_modules
+    node_modules
+    packages/*/node_modules
+    dev-packages/*/node_modules
     ~/.cache/mongodb-binaries/
 
   # DEPENDENCY_CACHE_KEY: can't be set here because we don't have access to yarn.lock
 
-  # WARNING: this disables cross os caching as ~ and
-  # github.workspace evaluate to differents paths
   # packages/utils/cjs and packages/utils/esm: Symlinks to the folders inside of `build`, needed for tests
   CACHED_BUILD_PATHS: |
-    ${{ github.workspace }}/dev-packages/*/build
-    ${{ github.workspace }}/packages/*/build
-    ${{ github.workspace }}/packages/*/lib
-    ${{ github.workspace }}/packages/ember/*.d.ts
-    ${{ github.workspace }}/packages/gatsby/*.d.ts
+    dev-packages/*/build
+    packages/*/build
+    packages/*/lib
+    packages/ember/*.d.ts
+    packages/gatsby/*.d.ts
 
   BUILD_CACHE_TARBALL_KEY: tarball-${{ github.event.inputs.commit || github.sha }}
 
@@ -906,7 +902,7 @@ jobs:
       - name: Stores tarballs in cache
         uses: actions/cache/save@v5
         with:
-          path: ${{ github.workspace }}/packages/*/*.tgz
+          path: packages/*/*.tgz
           key: ${{ env.BUILD_CACHE_TARBALL_KEY }}
           enableCrossOsArchive: true
 
@@ -989,7 +985,7 @@ jobs:
         uses: actions/cache/restore@v5
         id: restore-tarball-cache
         with:
-          path: ${{ github.workspace }}/packages/*/*.tgz
+          path: packages/*/*.tgz
           key: ${{ env.BUILD_CACHE_TARBALL_KEY }}
           enableCrossOsArchive: true
 
@@ -1103,7 +1099,7 @@ jobs:
         uses: actions/cache/restore@v5
         id: restore-tarball-cache
         with:
-          path: ${{ github.workspace }}/packages/*/*.tgz
+          path: packages/*/*.tgz
           key: ${{ env.BUILD_CACHE_TARBALL_KEY }}
           enableCrossOsArchive: true
 

.github/workflows/canary.yml

@@ -13,12 +13,12 @@ env:
   HEAD_COMMIT: ${{ github.event.inputs.commit || github.sha }}
 
   CACHED_BUILD_PATHS: |
-    ${{ github.workspace }}/packages/*/*.tgz
-    ${{ github.workspace }}/node_modules
-    ${{ github.workspace }}/packages/*/node_modules
-    ${{ github.workspace }}/dev-packages/*/node_modules
-    ${{ github.workspace }}/dev-packages/*/build
-    ${{ github.workspace }}/packages/*/build
+    packages/*/*.tgz
+    node_modules
+    packages/*/node_modules
+    dev-packages/*/node_modules
+    dev-packages/*/build
+    packages/*/build
 
 permissions:
   contents: read

scripts/dependency-hash-key.js

@@ -36,7 +36,7 @@ function outputDependencyCacheKey() {
   // We log the output in a way that the GitHub Actions can append it to the output
   // We prefix it with `dependencies-` so it is easier to identify in the logs
   // eslint-disable-next-line no-console
-  console.log(`hash=v2-dependencies-${hash}`);
+  console.log(`hash=v3-dependencies-${hash}`);
 }
 
 function getNormalizedDependencies(packageJson, workspacePackageNames) {