chore(ci): Add labels to PRs based on LoC / num files changed (#31729)

* chore(ci): Add labels to PRs based on LoC / num files changed * chore(ci): Make label-by-size depend on label by path, only run on opened & syncd PRs against main
mdn · Jan 16, 2024 · 99a0911 · 99a0911
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diff --git a/.github/pull-request-size.yml b/.github/pull-request-size.yml
@@ -0,0 +1,42 @@
+# Configuration for PR Size Labeler
+
+# List of files to exclude from size calculation
+# Files matching these patterns will not be considered when calculating PR size
+exclude_files:
+ - "files/en-us/_redirects.txt"
+ - "files/en-us/_wikihistory.json"
+
+# Configuration for labeling based on the size of the Pull Request
+# Each entry defines a size label, along with thresholds for diff and file count
+label_configs:
+ # Configuration for 'extra small' PRs
+ - size: xs
+ diff: 10 # Threshold for the total lines of code changed (additions + deletions)
+ files: 1 # Threshold for the total number of files changed
+ labels: ["size/xs"] # Labels to be applied for this size
+
+ # Configuration for 'small' PRs
+ - size: s
+ diff: 25
+ files: 5
+ labels: ["size/s"]
+
+ # Configuration for 'medium' PRs
+ - size: m
+ diff: 100
+ files: 10
+ # Additional labels can be added, e.g.;
+ # labels: ["size/m", "pairing-wanted"]
+ labels: ["size/m"]
+
+ # Configuration for 'large' PRs
+ - size: l
+ diff: 250
+ files: 25
+ labels: ["size/l"]
+
+ # Configuration for 'extra large' PRs
+ - size: xl
+ diff: 500
+ files: 50
+ labels: ["size/xl"]
diff --git a/.github/workflows/pr-labeler.yml b/.github/workflows/pr-labeler.yml
@@ -1,13 +1,36 @@
-name: "Pull request labeler"
+name: Pull request labeler
+
 on:
- - pull_request_target
+ pull_request:
+ types: [opened, synchronize]
+ branches:
+ - "main"
 
 jobs:
- triage:
+ # Docs: https://github.com/actions/labeler
+ label-by-path:
  # do not run on forks
  if: github.repository == 'mdn/content'
  runs-on: ubuntu-latest
  steps:
  - uses: actions/labeler@v4
  with:
  repo-token: "${{ secrets.GITHUB_TOKEN }}"
+
+ # Docs: https://github.com/cbrgm/pr-size-labeler-action
+ label-by-size:
+ # do not run on forks
+ if: github.repository == 'mdn/content'
+ needs: label-by-path
+ runs-on: ubuntu-latest
+ steps:
+ - name: Checkout repository
+ uses: actions/checkout@v4
+
+ - name: Label PR based on size
+ uses: cbrgm/pr-size-labeler-action@main
+ with:
+ github_token: ${{ secrets.GITHUB_TOKEN }}
+ github_repository: ${{ github.repository }} # Repository name
+ github_pr_number: ${{ github.event.number }} # Pull request number
+ config_file_path: ".github/pull-request-size.yml" # Path to pr-size-labeler config