chore: import upstream snapshot with attribution

2026-07-13 12:07:39 +08:00
commit d0aab9212a
460 changed files with 145411 additions and 0 deletions
@@ -0,0 +1,123 @@
+name: diff-shades comment
+
+on:
+  workflow_run:
+    workflows: [diff-shades]
+    types: [completed]
+
+permissions: {}
+
+jobs:
+  comment:
+    runs-on: ubuntu-latest
+    # We want to comment even if there were failed files or the stable style changed
+    # That would cause the main workflow to "fail"
+    if:
+      github.event.workflow_run.event == 'pull_request' &&
+      contains(fromJSON('["success", "failure"]'), github.event.workflow_run.conclusion)
+    permissions:
+      pull-requests: write # Needed to comment on PR
+    steps:
+      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+        with:
+          persist-credentials: false
+
+      - uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1
+        id: artifacts
+        with:
+          merge-multiple: true
+          pattern: ".*.pr-comment.md"
+          path: ${{ runner.temp }}/diff-shades-artifacts
+          github-token: ${{ github.token }}
+          run-id: ${{ github.event.workflow_run.id }}
+
+      - name: Validate downloaded comment artifacts
+        id: comment-artifacts
+        shell: bash
+        run: |
+          set -euo pipefail
+
+          artifact_dir="${RUNNER_TEMP}/diff-shades-artifacts"
+          preview_artifact="${artifact_dir}/.preview.pr-comment.md"
+          stable_artifact="${artifact_dir}/.stable.pr-comment.md"
+
+          if [ ! -d "$artifact_dir" ]; then
+              echo "::error::Artifact directory does not exist: ${artifact_dir}"
+              exit 1
+          fi
+
+          while IFS= read -r -d '' entry; do
+              if [ "$(dirname "$entry")" != "$artifact_dir" ]; then
+                  echo "::error::Unexpected nested artifact path: ${entry}"
+                  exit 1
+              fi
+
+              case "$(basename "$entry")" in
+                  .preview.pr-comment.md|.stable.pr-comment.md) ;;
+                  *)
+                      echo "::error::Unexpected artifact path: ${entry}"
+                      exit 1
+                      ;;
+              esac
+
+              if [ ! -f "$entry" ] || [ -L "$entry" ]; then
+                  echo "::error::Artifact must be a regular file: ${entry}"
+                  exit 1
+              fi
+          done < <(find "$artifact_dir" -mindepth 1 -print0)
+
+          for artifact in "$preview_artifact" "$stable_artifact"; do
+              if [ ! -f "$artifact" ] || [ -L "$artifact" ]; then
+                  echo "::error::Missing expected artifact file: ${artifact}"
+                  exit 1
+              fi
+          done
+
+          {
+              echo "preview=${preview_artifact}"
+              echo "stable=${stable_artifact}"
+          } >> "$GITHUB_OUTPUT"
+
+      - name: Set up Python
+        uses: actions/setup-python@ece7cb06caefa5fff74198d8649806c4678c61a1 # v6.3.0
+        with:
+          python-version: "3.14"
+          pip-version: "25.3"
+          pip-install: --group diff-shades-comment
+
+      - name: Get PR number
+        id: pr
+        run:
+          echo pr=$(gh pr list --search $sha --json number --jq ".[0].number") >>
+          "$GITHUB_OUTPUT"
+        env:
+          GITHUB_TOKEN: ${{ github.token }}
+          sha: ${{ github.event.workflow_run.head_sha }}
+
+      - name: Get details from initial workflow run
+        id: metadata
+        run: |
+          python scripts/diff_shades_gha_helper.py comment-details \
+          "$pr" "$run_id" "$preview_artifact" "$stable_artifact"
+        env:
+          GITHUB_TOKEN: ${{ github.token }}
+          pr: ${{ steps.pr.outputs.pr }}
+          run_id: ${{ github.event.workflow_run.id }}
+          preview_artifact: ${{ steps.comment-artifacts.outputs.preview }}
+          stable_artifact: ${{ steps.comment-artifacts.outputs.stable }}
+
+      - name: Try to find pre-existing PR comment
+        id: find-comment
+        uses: peter-evans/find-comment@b30e6a3c0ed37e7c023ccd3f1db5c6c0b0c23aad # v4.0.0
+        with:
+          issue-number: ${{ steps.pr.outputs.pr }}
+          comment-author: "github-actions[bot]"
+          body-includes: "diff-shades"
+
+      - name: Create or update PR comment
+        uses: peter-evans/create-or-update-comment@e8674b075228eee787fea43ef493e45ece1004c9 # v5.0.0
+        with:
+          comment-id: ${{ steps.find-comment.outputs.comment-id }}
+          issue-number: ${{ steps.pr.outputs.pr }}
+          body: ${{ steps.metadata.outputs.comment-body }}
+          edit-mode: replace