Function getVersionsInputFromPlainFile

src/utils.ts:301–317

(versionFile: string)

 * - Trims whitespace.
 */
export function getVersionsInputFromPlainFile(versionFile: string): string[] {
  core.debug(`Trying to resolve versions from ${versionFile}`);
  const content = fs.readFileSync(versionFile, 'utf8').trim();
  const lines = content.split(/\r\n|\r|\n/);
  const versions = lines
    .map(line => {
      if (line.startsWith('#') || line.trim() === '') {
        return undefined;
      }
      let version: string = line.trim();
      version = version.split('/')[0];
      return version;
    })
    .filter(version => version !== undefined) as string[];
  core.info(`Resolved ${versionFile} as ${versions.join(', ')}`);
  return versions;
}

/**
 * Python version extracted from a .tool-versions file.