ci: refactor generate-template workflow to use dynamic branch name

Author: paul58914080

.github/workflows/generate-template.yaml

@@ -10,68 +10,52 @@ permissions:
 jobs:
   generate-template:
     runs-on: ubuntu-latest
-
+    env:
+      GENERATED_BRANCH_NAME: generated-template
     steps:
       - name: Checkout main
         uses: actions/checkout@v4
-        with:
-          ref: main
-          fetch-depth: 0
-          token: ${{ secrets.PAT_TOKEN }}
-
-      - name: Configure Git for push
-        run: |
-          git config user.name "github-actions[bot]"
-          git config user.email "github-actions[bot]@users.noreply.github.com"
-          git remote set-url origin "https://${{ secrets.PAT_TOKEN }}@github.com/${{ github.repository }}.git"
+#        with:
+#          ref: main
+#          fetch-depth: 0
+#          token: ${{ secrets.PAT_TOKEN }}
 
-#      - name: Prepare or reuse generated-template branch
-#        id: prepare_branch
+#      - name: Configure Git for push
 #        run: |
-#          BRANCH="generated-template"
-#          git fetch origin
-#          if git show-ref --verify --quiet refs/remotes/origin/$BRANCH; then
-#            echo "Branch exists — checking it out."
-#            git checkout $BRANCH
-#            git pull origin $BRANCH
-#          else
-#            echo "Branch does not exist — creating it."
-#            git checkout -b $BRANCH
-#            git push -u origin $BRANCH
-#          fi
-#          echo "branch=${BRANCH}" >> $GITHUB_OUTPUT
+#          git config user.name "github-actions[bot]"
+#          git config user.email "github-actions[bot]@users.noreply.github.com"
+#          git remote set-url origin "https://${{ secrets.PAT_TOKEN }}@github.com/${{ github.repository }}.git"
 
       - name: Check Branch & PR
         id: check_branch_pr
         env:
           GH_TOKEN: ${{ secrets.PAT_TOKEN }}   # PAT or GITHUB_TOKEN with write access
         run: |
-          BRANCH="generated-template"
           git fetch origin
       
           # --- Check if branch exists remotely ---
-          if git show-ref --verify --quiet refs/remotes/origin/$BRANCH; then
-            echo "✅ Branch $BRANCH exists remotely."
-            git checkout $BRANCH
-            git pull origin $BRANCH
+          if git show-ref --verify --quiet refs/remotes/origin/$GENERATED_BRANCH_NAME; then
+            echo "✅ Branch $GENERATED_BRANCH_NAME exists remotely."
+            git checkout $GENERATED_BRANCH_NAME
+            git pull origin $GENERATED_BRANCH_NAME
             echo "branch_exists=true" >> $GITHUB_OUTPUT
           else
-            echo "🚫 Branch $BRANCH does not exist."
-            git checkout -b $BRANCH
-            git push -u origin $BRANCH
+            echo "🚫 Branch $GENERATED_BRANCH_NAME does not exist."
+            git checkout -b $GENERATED_BRANCH_NAME
+            git push -u origin $GENERATED_BRANCH_NAME
             echo "branch_exists=false" >> $GITHUB_OUTPUT
           fi
-          echo "branch=${BRANCH}" >> $GITHUB_OUTPUT
+          echo "branch=${GENERATED_BRANCH_NAME}" >> $GITHUB_OUTPUT
 
           # --- Check if PR already exists for this branch ---
-          OPEN_PR=$(gh pr list --head "$BRANCH" --state open --json number --jq '.[0].number')
+          OPEN_PR=$(gh pr list --head "$GENERATED_BRANCH_NAME" --state open --json number --jq '.[0].number')
           if [ -n "$OPEN_PR" ]; then
             echo "open_pr=true" >> $GITHUB_OUTPUT
             echo "open_pr_number=$OPEN_PR" >> $GITHUB_OUTPUT
-            echo "📬 Open PR #$OPEN_PR found for branch $BRANCH."
+            echo "📬 Open PR #$OPEN_PR found for branch $GENERATED_BRANCH_NAME."
           else
             echo "open_pr=false" >> $GITHUB_OUTPUT
-            echo "📭 No open PR found for branch $BRANCH."
+            echo "📭 No open PR found for branch $GENERATED_BRANCH_NAME."
           fi
 
       - name: Make script executable
@@ -93,7 +77,7 @@ jobs:
             echo "✅ No changes detected."
           else
             git commit -m "ci: update generated cookiecutter template from example"
-            git push origin generated-template
+            git push origin $GENERATED_BRANCH_NAME
             echo "no_changes=false" >> $GITHUB_OUTPUT
           fi
 
@@ -104,6 +88,6 @@ jobs:
         run: |
           gh pr create \
             --base main \
-            --head generated-template \
+            --head $GENERATED_BRANCH_NAME \
             --title "ci: update generated cookiecutter template from example" \
             --body "Automated PR created by workflow."