Function readCommandLineAndConfiguration

packages/compiler-cli/src/main.ts:145–180

(
  args: string[],
  existingOptions: api.CompilerOptions = {},
  ngCmdLineOptions: string[] = [],
)

}

export function readCommandLineAndConfiguration(
  args: string[],
  existingOptions: api.CompilerOptions = {},
  ngCmdLineOptions: string[] = [],
): ParsedConfiguration {
  let cmdConfig = ts.parseCommandLine(args);
  const project = cmdConfig.options.project || '.';
  const cmdErrors = cmdConfig.errors.filter((e) => {
    if (typeof e.messageText === 'string') {
      const msg = e.messageText;
      return !ngCmdLineOptions.some((o) => msg.indexOf(o) >= 0);
    }
    return true;
  });
  if (cmdErrors.length) {
    return {
      project,
      rootNames: [],
      options: cmdConfig.options,
      errors: cmdErrors,
      emitFlags: api.EmitFlags.Default,
    };
  }
  const config = readConfiguration(project, cmdConfig.options);
  const options = {...config.options, ...existingOptions};
  if (options.locale) {
    options.i18nInLocale = options.locale;
  }
  return {
    project,
    rootNames: config.rootNames,
    options,
    errors: config.errors,
    emitFlags: config.emitFlags,
  };
}

function getFormatDiagnosticsHost(options?: api.CompilerOptions): ts.FormatDiagnosticsHost {
  const basePath = options ? options.basePath : undefined;