chore: publish attestations to BCR

Author: alexeagle

.bcr/config.yml

@@ -0,0 +1,34 @@
+# Publish new releases to Bazel Central Registry.
+name: Publish
+on:
+  # Run the publish workflow after a successful release
+  # Will be triggered from the release.yaml workflow
+  workflow_call:
+    inputs:
+      tag_name:
+        required: true
+        type: string
+    secrets:
+      publish_token:
+        required: true
+  # In case of problems, let release engineers retry by manually dispatching
+  # the workflow from the GitHub UI
+  workflow_dispatch:
+    inputs:
+      tag_name:
+        required: true
+        type: string
+jobs:
+  publish:
+    uses: bazel-contrib/publish-to-bcr/.github/workflows/[email protected]
+    with:
+      tag_name: ${{ inputs.tag_name }}
+      # GitHub repository which is a fork of the upstream where the Pull Request will be opened.
+      registry_fork: aspect-build/bazel-central-registry
+    permissions:
+      attestations: write
+      contents: write
+      id-token: write
+    secrets:
+      # Necessary to push to the BCR fork, and to open a pull request against a registry
+      publish_token: ${{ secrets.publish_token || secrets.BCR_PUBLISH_TOKEN }}

.github/workflows/publish.yaml

@@ -7,34 +7,21 @@ on:
   push:
     tags:
       - 'v*.*.*'
-
+permissions:
+  id-token: write
+  attestations: write
+  contents: write
 jobs:
-  build:
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v4
-      - name: Mount bazel caches
-        uses: actions/cache@v4
-        with:
-          path: |
-            "~/.cache/bazel"
-            "~/.cache/bazel-repo"
-          key: bazel-cache-${{ hashFiles('**/BUILD.bazel', '**/*.bzl', 'WORKSPACE') }}
-          restore-keys: bazel-cache-
-      - name: bazel test //...
-        env:
-          # Bazelisk will download bazel to here
-          XDG_CACHE_HOME: ~/.cache/bazel-repo
-        run: bazel --bazelrc=.github/workflows/ci.bazelrc --bazelrc=.bazelrc test //...
-      - name: Prepare release
-        run: .github/workflows/release_prep.sh ${{ env.GITHUB_REF_NAME }} > release_notes.txt
-      - name: Release
-        uses: softprops/action-gh-release@v1
-        with:
-          prerelease: true
-          # Use GH feature to populate the changelog automatically
-          generate_release_notes: true
-          body_path: release_notes.txt
-          files: rules_webpack-*.tar.gz
-          fail_on_unmatched_files: true
+  release:
+    uses: bazel-contrib/.github/.github/workflows/[email protected]
+    with:
+      release_files: rules_webpack-*.tar.gz
+      prerelease: false
+      tag_name: ${{ github.ref_name }}
+  publish:
+    needs: release
+    uses: ./.github/workflows/publish.yaml
+    with:
+      tag_name: ${{ github.ref_name }}
+    secrets:
+      publish_token: ${{ secrets.BCR_PUBLISH_TOKEN }}