Function getVersionInputFromPipfileFile

src/utils.ts:355–387

(versionFile: string)

 * Python version extracted from the Pipfile file.
 */
export function getVersionInputFromPipfileFile(versionFile: string): string[] {
  core.debug(`Trying to resolve version from ${versionFile}`);

  if (!fs.existsSync(versionFile)) {
    core.warning(`File ${versionFile} does not exist.`);
    return [];
  }
  let pipfileFile = fs.readFileSync(versionFile, 'utf8');
  // Normalize the line endings in the pipfileFile
  pipfileFile = pipfileFile.replace(/\r\n/g, '\n');

  const pipfileConfig = toml.parse(pipfileFile);
  const keys = ['requires'];

  if (!('requires' in pipfileConfig)) {
    core.warning(`No Python version found in ${versionFile}`);
    return [];
  }
  if ('python_full_version' in (pipfileConfig['requires'] as toml.JsonMap)) {
    // specifies a full python version
    keys.push('python_full_version');
  } else {
    keys.push('python_version');
  }
  const versions = [];
  const version = extractValue(pipfileConfig, keys);
  if (version !== undefined) {
    versions.push(version);
  }

  core.info(`Extracted ${versions} from ${versionFile}`);
  return versions;
}

/**
 * Python version extracted from a plain, .tool-versions, Pipfile or TOML file.