bug: fix target branch for ocp bundle PR

On tag event, CI push PR with updated ocp bundle.
The target branch should be master for beta tag,
otherwise should be the release branch.

Signed-off-by: Fred Rolland <[email protected]>

Author: rollandf

.github/workflows/ci.yaml

@@ -130,9 +130,35 @@ jobs:
         export CHANNELS=stable,$version_major_minor
         export DEFAULT_CHANNEL=$version_major_minor
         make bundle bundle-build bundle-push
+    - name: Determine Target Branch
+      shell: bash
+      run: |
+        set -e  # Fail on errors
+        set -x  # Enable trace mode for debugging
+        # Extract the tag name from GITHUB_REF
+        TAG_NAME="${GITHUB_REF##*/}"
+        echo "Extracted TAG_NAME: $TAG_NAME"
+        if [[ "$TAG_NAME" =~ beta ]]; then
+          echo "Detected 'beta' tag. Setting branch to 'master'."
+          echo "TARGET_BRANCH=master" >> $GITHUB_ENV
+        else
+          # Match version tags like v24.10.0 or v24.10.0-rc.3
+          if [[ "$TAG_NAME" =~ ^v([0-9]+\.[0-9]+)\. ]]; then
+            RELEASE_BRANCH="v${BASH_REMATCH[1]}.x"
+            echo "Parsed release branch: $RELEASE_BRANCH"
+            echo "TARGET_BRANCH=$RELEASE_BRANCH" >> $GITHUB_ENV
+          else
+            echo "Failed to parse tag name: $TAG_NAME"
+            exit 1
+          fi
+        fi
+
+        # Confirm the TARGET_BRANCH value
+        echo "Determined target branch: $TARGET_BRANCH"
     - name: Create PR with bundle to Network Operator
       env:
         FEATURE_BRANCH: update-ocp-bundle-to-${{ env.VERSION_WITH_PREFIX }}
+        TARGET_BRANCH: ${{ env.TARGET_BRANCH }}
       run: |
         git config user.name  nvidia-ci-cd
         git config user.email [email protected]
@@ -145,7 +171,7 @@ jobs:
         git push -u origin $FEATURE_BRANCH
         gh pr create \
           --head $FEATURE_BRANCH \
-          --base $DEFAULT_BRANCH \
+          --base $TARGET_BRANCH \
           --title "task: update bundle to $VERSION_WITH_PREFIX" \
           --body "Created by the *${{ github.job }}* job in [${{ github.repository }} OCP bundle CI](${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }})."
     - name: Determine if to send bundle to RedHat