NoMethodError: undefined method '[]' for nil

[tamascsaba]

Issue Summary:
The GitHub Actions Importer encountered a NoMethodError: undefined method '[]' for nil while processing GitLab CI pipeline files.

Key Details from the Log:

1. Successful API Calls: The tool successfully made numerous API calls to GitLab:
   • Retrieved project information (lines 3-6)
   • Fetched .gitlab-ci.yml from master branch (line 7-8) ✅
   • Retrieved project and group variables (lines 9-12) ✅
   • Got pipeline schedules (lines 13-14) ✅
   • Fetched various included CI files from the build library (lines 15-34) ✅
2. Error Location: The error occurred at line 37-38:
3. Stack Trace Analysis: The error happened in:
   • extract_pipeline.rb:229 in prepare_file_to_extract method
   • During processing of included files (included_files_to_extract)
   • While trying to access an array/hash element that was nil
4. Reference ID: The error has reference ID 1a1805dada847ae92d2ffd1936660dd353d6d1ef for support requests

Root Cause:
This appears to be a bug in the GitHub Actions Importer tool itself. The tool successfully authenticated and retrieved all the necessary GitLab CI configuration files, but failed when trying to parse or process one of the included files. The error suggests that the tool expected a hash or array but received nil instead.

Reference ID 1a1805dada847ae92d2ffd1936660dd353d6d1ef