handle backported stable releases

Author: furlongm

.github/workflows/create-release-and-upload-assets.yml

@@ -19,7 +19,11 @@ jobs:
       version: ${{ steps.set-vars.outputs.version }}
       rpm_version: ${{ steps.set-vars.outputs.rpm_version }}
       is_prerelease: ${{ steps.set-vars.outputs.is_prerelease }}
+      target_branch: ${{ steps.set-vars.outputs.target_branch }}
     steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
       - id: set-vars
         run: |
           if [ "${{ github.event_name }}" == "workflow_dispatch" ]; then
@@ -35,10 +39,20 @@ jobs:
           else
             IS_PRERELEASE=false
           fi
+          # Detect target branch: if tag version matches VERSION.txt, use main
+          # otherwise use stable-X.Y branch for backport releases
+          MAJOR_MINOR=$(echo "$VERSION" | grep -oP '^\d+\.\d+')
+          CURRENT=$(cat VERSION.txt | grep -oP '^\d+\.\d+')
+          if [[ "$MAJOR_MINOR" == "$CURRENT" ]]; then
+            TARGET_BRANCH="main"
+          else
+            TARGET_BRANCH="stable-${MAJOR_MINOR}"
+          fi
           echo "version=${VERSION}" >> $GITHUB_OUTPUT
           echo "rpm_version=${RPM_VERSION}" >> $GITHUB_OUTPUT
           echo "is_prerelease=${IS_PRERELEASE}" >> $GITHUB_OUTPUT
-          echo "Version: $VERSION, RPM Version: $RPM_VERSION, Pre-release: $IS_PRERELEASE"
+          echo "target_branch=${TARGET_BRANCH}" >> $GITHUB_OUTPUT
+          echo "Version: $VERSION, RPM Version: $RPM_VERSION, Pre-release: $IS_PRERELEASE, Target: $TARGET_BRANCH"
 
   create-release:
     needs: setup
@@ -69,7 +83,7 @@ jobs:
       - uses: actions/checkout@v4
         with:
           fetch-depth: 0
-          ref: main
+          ref: ${{ needs.setup.outputs.target_branch }}
       - name: git fetch --all
         run: |
           git fetch --all
@@ -91,7 +105,7 @@ jobs:
           echo "${{ needs.setup.outputs.version }}" > VERSION.txt
           git add VERSION.txt
           git diff --quiet && git diff --staged --quiet || git commit -m "${COMMIT_MSG}"
-          git push origin main
+          git push origin ${{ needs.setup.outputs.target_branch }}
       - name: Update debian changelog
         env:
           EMAIL: furlongm@gmail.com
@@ -101,7 +115,7 @@ jobs:
             skip-checks: true
         run: |
           gbp dch --new-version=${{ needs.setup.outputs.version }}-1 --release --distribution=stable --spawn-editor=never --commit --commit-msg="${COMMIT_MSG}"
-          git push origin main
+          git push origin ${{ needs.setup.outputs.target_branch }}
 
   build-and-upload-deb-assets:
     needs: [setup, create-release, update-version-and-changelog]
@@ -123,8 +137,8 @@ jobs:
       - uses: actions/checkout@v4
         with:
           fetch-depth: 0
-          # For stable releases, use main (has updated changelog); for pre-releases, use the tag
-          ref: ${{ needs.setup.outputs.is_prerelease == 'false' && 'main' || github.ref }}
+          # For stable releases, use target branch (has updated changelog); for pre-releases, use the tag
+          ref: ${{ needs.setup.outputs.is_prerelease == 'false' && needs.setup.outputs.target_branch || github.ref }}
       - name: git fetch --all
         run: |
           git config --global --add safe.directory /__w/patchman/patchman
@@ -151,7 +165,7 @@ jobs:
           EMAIL: furlongm@gmail.com
           VERSION: ${{ needs.setup.outputs.version }}
         run: |
-          # VERSION.txt and changelog already updated on main by update-version-and-changelog job
+          # VERSION.txt and changelog already updated on target branch by update-version-and-changelog job
           # Recreate tag to include those commits
           git tag --delete v${VERSION}
           git tag v${VERSION}
@@ -181,7 +195,7 @@ jobs:
       - uses: actions/checkout@v4
         with:
           fetch-depth: 0
-          ref: ${{ needs.setup.outputs.is_prerelease == 'false' && 'main' || github.ref }}
+          ref: ${{ needs.setup.outputs.is_prerelease == 'false' && needs.setup.outputs.target_branch || github.ref }}
       - name: git fetch --all
         run: |
           git config --global --add safe.directory /__w/patchman/patchman