Allow a single branch to be specified for sync-feature-branches

Author: elookpotts-nvidia

.github/workflows/sync-feature-branches.yaml

@@ -18,6 +18,12 @@ name: Sync Feature Branches
 
 on:
   workflow_dispatch:
+    inputs:
+      branch:
+        description: 'Specific feature branch to sync (e.g., feature/PROJ-123-my-feature). Leave empty to sync all feature branches.'
+        required: false
+        type: string
+        default: ''
   schedule:
     # Run every Monday at 9am PT (5pm UTC)
     - cron: '0 17 * * 1'
@@ -42,41 +48,52 @@ jobs:
       - name: Find and sync feature branches
         env:
           GH_TOKEN: ${{ github.token }}
+          INPUT_BRANCH: ${{ inputs.branch }}
         run: |
           set -e
-          
-          echo "🔍 Finding feature branches..."
-          
-          # Get all remote feature branches
-          feature_branches=$(git branch -r | grep 'origin/feature/' | sed 's|origin/||' | grep -v HEAD || true)
-          
-          if [ -z "$feature_branches" ]; then
-            echo "ℹ️  No feature branches found matching pattern 'feature/*'"
-            exit 0
+
+          if [ -n "$INPUT_BRANCH" ]; then
+            echo "🔍 Syncing specific branch: $INPUT_BRANCH"
+            # Validate the branch exists
+            if ! git ls-remote --exit-code --heads origin "$INPUT_BRANCH" > /dev/null 2>&1; then
+              echo "❌ Error: Branch '$INPUT_BRANCH' does not exist on remote"
+              exit 1
+            fi
+            feature_branches="$INPUT_BRANCH"
+          else
+            echo "🔍 Finding feature branches..."
+
+            # Get all remote feature branches
+            feature_branches=$(git branch -r | grep 'origin/feature/' | sed 's|origin/||' | grep -v HEAD || true)
+
+            if [ -z "$feature_branches" ]; then
+              echo "ℹ️  No feature branches found matching pattern 'feature/*'"
+              exit 0
+            fi
           fi
-          
+
           echo "Found feature branches:"
           echo "$feature_branches"
           echo ""
-          
+
           # Process each feature branch
           for branch in $feature_branches; do
             echo "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━"
             echo "📋 Processing branch: $branch"
-            
+
             # Check if main has commits not in the feature branch
             git fetch origin main
             git fetch origin "$branch"
-            
+
             commits_behind=$(git rev-list --count origin/$branch..origin/main)
-            
+
             if [ "$commits_behind" -eq 0 ]; then
               echo "✅ Branch $branch is already up to date with main"
               continue
             fi
-            
+
             echo "📊 Branch $branch is $commits_behind commit(s) behind main"
-            
+
             # Extract issue number from branch name (format: feature/PROJ-NNN-short-slug)
             # If no PROJ-NNN pattern is found, use "Issue - None"
             issue_number=$(echo "$branch" | grep -oE 'PROJ-[0-9]+' || echo "")
@@ -85,13 +102,13 @@ jobs:
             else
               issue_ref="Issue #$issue_number"
             fi
-            
+
             # Create a temporary branch for the merge
             temp_branch="sync/$branch/$(date +%Y%m%d-%H%M)"
-            
+
             echo "🌿 Creating temporary branch: $temp_branch"
             git checkout -b "$temp_branch" "origin/$branch"
-            
+
             # Attempt to merge main
             echo "🔀 Merging main into $temp_branch..."
             if git merge origin/main --no-commit --no-ff; then
@@ -102,50 +119,50 @@ jobs:
               git add -A
               git commit -m "Merge main into $branch"
             fi
-            
+
             # Push the temporary branch
             echo "⬆️  Pushing $temp_branch to remote..."
             git push origin "$temp_branch"
-            
+
             # Create PR
             echo "📝 Creating pull request..."
-            
+
             gh pr create \
               --base "$branch" \
               --head "$temp_branch" \
               --title "Sync main into $branch" \
               --body "$(cat <<EOF
           ## Description
-          
+
           This automated PR merges the latest changes from \`main\` into \`$branch\`.
-          
+
           **What to do:**
           Review the changes and merge this PR to keep your feature branch up to date with main. If there are merge conflicts, resolve them before merging.
-          
+
           **Branch Info:**
           - **Target**: \`$branch\`
           - **Source**: \`main\`
           - **Commits behind**: $commits_behind
-          
+
           $issue_ref
-          
+
           ## Checklist
           - [ ] I am familiar with the [Contributing Guidelines](https://github.com/NVIDIA/OSMO/blob/main/CONTRIBUTING.md).
           - [ ] New or existing tests cover these changes.
           - [ ] The documentation is up to date with these changes.
-          
+
           ---
           *This PR was automatically created by the [Sync Feature Branches workflow](.github/workflows/sync-feature-branches.yaml) as part of the [Projects Process](../projects/README.md#stage-in-development).*
           EOF
             )"
-            
+
             echo "✅ Created PR to sync main into $branch"
-            
+
             # Switch back to main for next iteration
             git checkout main
-            
+
           done
-          
+
           echo ""
           echo "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━"
           echo "✨ Sync process complete!"