added co-authors

.github/workflows/add-coauthors.yml

@@ -0,0 +1,50 @@
+name: Add Co-Authors
+on:
+  pull_request:
+    types: [closed]
+
+jobs:
+  add-coauthors:
+    if: github.event.pull_request.merged == true
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+
+      - name: Setup Git
+        run: |
+          git config --global user.name "GitHub Actions"
+          git config --global user.email "actions@github.com"
+
+      - name: Add co-authors
+        run: |
+          # Get the merge commit SHA
+          MERGE_COMMIT_SHA=$(git rev-parse HEAD)
+
+          # Get the base branch (target of PR)
+          BASE_BRANCH="${{ github.event.pull_request.base.ref }}"
+
+          # Find merge base
+          MERGE_BASE=$(git merge-base HEAD $BASE_BRANCH)
+
+          # Extract unique contributors
+          CONTRIBUTORS=$(git log $MERGE_BASE..$MERGE_COMMIT_SHA --format='%aN <%aE>' | sort -u | grep -v 'GitHub Actions')
+
+          # Get the current commit message
+          COMMIT_MSG=$(git log -1 --pretty=%B)
+
+          # Create new commit message with co-authors
+          NEW_MSG="$COMMIT_MSG"$'\n\n'
+          while IFS= read -r contributor; do
+            NEW_MSG+="Co-authored-by: $contributor"$'\n'
+          done <<< "$CONTRIBUTORS"
+
+          # Amend the merge commit with updated message
+          echo "$NEW_MSG" | git commit --amend -F -
+
+          # Force push the changes
+          git push --force

README.md

@@ -734,6 +734,26 @@ For further assistance, please create an issue on the [GitHub repository](https:
 
 - Note for Contributors: If you would like to submit a Pull Request (PR), please target the `release` branch instead of `main`. The `release` branch is used for testing new code changes and will be periodically merged into `main` after validation. This approach ensures that only tested features make it into the main branch.
 
+## Git Co-Authors Feature
+
+This repository includes an automated GitHub Action that preserves contributor attribution when PRs are squashed and merged. The workflow automatically adds `Co-authored-by` lines to the squashed commit message, ensuring that all contributors get proper credit for their work.
+
+### How it works
+
+1. When a PR is merged, the GitHub Action triggers automatically
+2. It identifies all unique contributors who made commits in the PR
+3. It adds their names and emails as `Co-authored-by` lines to the final squashed commit message
+
+### Example co-authored commit message:
+```
+feat: Add new feature
+
+Co-authored-by: John Doe <john@example.com>
+Co-authored-by: Jane Smith <jane@example.com>
+```
+
+The workflow is configured in `.github/workflows/add-coauthors.yml`.
+
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