Use github.workflow_ref to fix issues when workflow files are renamed

CHANGELOG.md

@@ -5,7 +5,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
-_Nothing so far_
+- Fix issue when the workflow file is renamed (fgrosse/go-coverage-report#41)
 
 ## [v1.1.0] - 2024-07-25
 - Document permissions needed to use this action (fgrosse/go-coverage-report#32)

action.yml

@@ -81,7 +81,7 @@ runs:
       env:
         GH_REPO: ${{ github.repository }}
         GH_TOKEN: ${{ github.token }}
-        GITHUB_WORKFLOW: ${{ github.workflow }}
+        GITHUB_WORKFLOW_REF: ${{ github.workflow_ref }}
         GITHUB_BASE_REF: ${{ github.base_ref }}
         CHANGED_FILES_PATH: .github/outputs/all_modified_files.json
         COVERAGE_ARTIFACT_NAME: ${{ inputs.coverage-artifact-name }}

scripts/github-action.sh

@@ -25,6 +25,7 @@ this in the workflow file:
 
 You can use the following environment variables to configure the script:
 - GITHUB_WORKFLOW: The name of the Workflow (default: CI)
+- GITHUB_WORKFLOW_REF: The ref path to the workflow to use instead of GITHUB_WORKFLOW (optional)
 - GITHUB_BASE_REF: The base branch to compare the coverage results against (default: main)
 - COVERAGE_ARTIFACT_NAME: The name of the artifact containing the code coverage results (default: code-coverage)
 - COVERAGE_FILE_NAME: The name of the file containing the code coverage results (default: coverage.txt)
@@ -74,6 +75,11 @@ if [[ -z ${GITHUB_OUTPUT+x} ]]; then
     exit 1
 fi
 
+# If GITHUB_WORKFLOW_REF is defined, extract the workflow file path from it and use it instead of GITHUB_WORKFLOW
+if [[ -n ${GITHUB_WORKFLOW_REF+x} ]]; then
+    GITHUB_WORKFLOW=$(basename "${GITHUB_WORKFLOW_REF%%@*}")
+fi
+
 export GH_REPO="$GITHUB_REPOSITORY"
 
 start_group(){