fix: bug retrieving the current branch name on pull request review event (#235)

Author: jackton1

.github/workflows/test.yml

@@ -6,6 +6,7 @@ on:
       - '*'
     branches:
       - main
+  pull_request_review:
   pull_request_target:
   pull_request:
     branches:
@@ -41,22 +42,22 @@ jobs:
           echo "Is Tag: ${{ steps.branch-name.outputs.is_tag }}"
           echo "Current tag: ${{ steps.branch-name.outputs.tag }}"
       - name: Test is_default output for pull request
-        if: (github.event_name == 'pull_request' || github.event_name == 'pull_request_target') && steps.branch-name.outputs.is_tag == 'false' && steps.branch-name.outputs.is_default != 'false'
+        if: contains(github.event_name, 'pull_request') && steps.branch-name.outputs.is_tag == 'false' && steps.branch-name.outputs.is_default != 'false'
         run: |
           echo "Is default is invalid: ${{ steps.branch-name.outputs.is_default }}"
           exit 1
       - name: Test is_default output for non pull request
-        if: github.event_name != 'pull_request' && github.event_name != 'pull_request_target' && steps.branch-name.outputs.is_tag == 'false' && steps.branch-name.outputs.is_default != 'true'
+        if: "!contains(github.event_name, 'pull_request') && steps.branch-name.outputs.is_tag == 'false' && steps.branch-name.outputs.is_default != 'true'"
         run: |
           echo "Is default is invalid: ${{ steps.branch-name.outputs.is_default }}"
           exit 1
       - name: Test base_ref_branch output
-        if: (github.event_name == 'pull_request' || github.event_name == 'pull_request_target') && steps.branch-name.outputs.is_tag == 'false' && !steps.branch-name.outputs.base_ref_branch
+        if: contains(github.event_name, 'pull_request') && steps.branch-name.outputs.is_tag == 'false' && !steps.branch-name.outputs.base_ref_branch
         run: |
           echo "Base ref unset: ${{ steps.branch-name.outputs.base_ref_branch }}"
           exit 1
       - name: Test head_ref output
-        if: (github.event_name == 'pull_request' || github.event_name == 'pull_request_target') && steps.branch-name.outputs.is_tag == 'false' && !steps.branch-name.outputs.head_ref_branch
+        if: contains(github.event_name, 'pull_request') && steps.branch-name.outputs.is_tag == 'false' && !steps.branch-name.outputs.head_ref_branch
         run: |
           echo "Head ref unset: ${{ steps.branch-name.outputs.head_ref_branch }}"
           exit 1
@@ -66,7 +67,7 @@ jobs:
           echo "Ref unset: ${{ steps.branch-name.outputs.ref_branch }}"
           exit 1
       - name: Test current_branch output for pull_request or pull_request_target event.
-        if: (github.event_name == 'pull_request' || github.event_name == 'pull_request_target') && steps.branch-name.outputs.is_tag == 'false' && !steps.branch-name.outputs.current_branch
+        if: contains(github.event_name, 'pull_request') && steps.branch-name.outputs.is_tag == 'false' && !steps.branch-name.outputs.current_branch
         run: |
           echo "Current branch unset: ${{ steps.branch-name.outputs.current_branch }}"
           exit 1

action.yml

@@ -40,8 +40,8 @@ runs:
       run: |
         # "Set branch names..."
         if [[ "${{ github.ref }}" != "refs/tags/"* ]]; then
-          BASE_REF=$(printf "%q" "${{ github.base_ref }}")
-          HEAD_REF=$(printf "%q" "${{ github.head_ref }}")
+          BASE_REF=$(printf "%q" "${{ github.event.pull_request.base.ref || github.base_ref }}")
+          HEAD_REF=$(printf "%q" "${{ github.event.pull_request.head.ref || github.head_ref }}")
           REF=$(printf "%q" "${{ github.ref }}")
 
           BASE_REF=${BASE_REF/refs\/heads\//}
@@ -73,7 +73,7 @@ runs:
       run: |
         # "Set the current branch name..."
         if [[ "${{ github.ref }}" != "refs/tags/"* ]]; then
-          if [[ ${{ github.event_name }} == 'pull_request' || ${{ github.event_name }} == 'pull_request_target' ]]; then
+          if [[ ${{ github.event_name }} == *"pull_request"* ]]; then
             if [[ -z "$GITHUB_OUTPUT" ]]; then
               echo "::set-output name=current_branch::${{ steps.branch.outputs.head_ref_branch }}"
             else