citation_info.rb

begin

  citation_file_path = ENV["CITATION_FILE_PATH"].to_s

  if !citation_file_path.empty? && File.exist?(citation_file_path)

    citation_cff_contents = File.read(citation_file_path)

    if citation_cff_contents.empty?
      system("echo 'CITATION.cff file is empty: #{citation_file_path}'")
    else
      citation_info_msg = <<~CITATIONINFO
        **Ensure proper citation** by uploading a plain text CITATION.cff file to the default branch of your repository.

        If using GitHub, a *Cite this repository* menu will appear in the About section, containing both APA and BibTeX formats. When exported to Zotero using a browser plugin, Zotero will automatically create an entry using the information contained in the .cff file.

        You can copy the contents for your CITATION.cff file here:

        <details><summary><strong>CITATION.cff</strong></summary>
        <p>

        ```
        #{citation_cff_contents}
        ```

        </p>
        </details>

        If the repository is not hosted on GitHub, a .cff file can still be uploaded to set your preferred citation. Users will be able to manually copy and paste the citation.

        Find more information on .cff files [here](https://github.com/citation-file-format/citation-file-format/blob/main/README.md) and [here](https://docs.github.com/en/repositories/managing-your-repositorys-settings-and-features/customizing-your-repository/about-citation-files).
      CITATIONINFO

      File.open('citation_info_msg.txt', 'w') do |f|
        f.write citation_info_msg
      end

      system("gh issue comment #{ENV['ISSUE_ID']} --body-file citation_info_msg.txt")
    end
  else
    system("echo 'No citation .cff file found #{citation_file_path}'")
  end

rescue Exception => e
  system("echo '!! Error creating the citation info. #{citation_file_path} : #{e.message}'")
  system("echo '!! #{e.backtrace}'")
end