Function getVersionInputFromTomlFile

src/utils.ts:253–292

(versionFile: string)

 * If none is present, returns an empty list.
 */
export function getVersionInputFromTomlFile(versionFile: string): string[] {
  core.debug(`Trying to resolve version from ${versionFile}`);

  let pyprojectFile = fs.readFileSync(versionFile, 'utf8');
  // Normalize the line endings in the pyprojectFile
  pyprojectFile = pyprojectFile.replace(/\r\n/g, '\n');

  const pyprojectConfig = toml.parse(pyprojectFile);
  let keys = [];

  if ('project' in pyprojectConfig) {
    // standard project metadata (PEP 621)
    keys = ['project', 'requires-python'];
  } else {
    // python poetry
    keys = ['tool', 'poetry', 'dependencies', 'python'];
  }
  const versions = [];
  const version = extractValue(pyprojectConfig, keys);
  if (version !== undefined) {
    versions.push(version);
  }

  core.info(`Extracted ${versions} from ${versionFile}`);
  const rawVersions = Array.from(versions, version =>
    version.split(',').join(' ')
  );
  const validatedVersions = rawVersions
    .map(item => semver.validRange(item, true))
    .filter((versionRange, index) => {
      if (!versionRange) {
        core.debug(
          `The version ${rawVersions[index]} is not valid SemVer range`
        );
      }

      return !!versionRange;
    }) as string[];
  return validatedVersions;
}

/**
 * Python versions extracted from a plain text file.