Class OutputPlugin

packages/repack/src/webpack/plugins/OutputPlugin.ts:35–236

 * @category Webpack Plugin
 */
export class OutputPlugin implements WebpackPlugin {
  /**
   * Constructs new `OutputPlugin`.
   *
   * @param config Plugin configuration options.
   */
  constructor(private config: OutputPluginConfig) {
    if (!this.config.platform) {
      throw new Error('Missing `platform` option in `OutputPlugin`');
    }
  }

  /**
   * Apply the plugin.
   *
   * @param compiler Webpack compiler instance.
   */
  apply(compiler: webpack.Compiler) {
    const cliOptions: CliOptions | null = JSON.parse(
      process.env[CLI_OPTIONS_ENV_KEY] ?? 'null'
    );

    // Noop when running from Webpack CLI or when running with dev server
    if (
      !cliOptions ||
      'start' in cliOptions.arguments ||
      this.config.devServerEnabled
    ) {
      return;
    }

    const logger = compiler.getInfrastructureLogger('ReactNativeOutputPlugin');

    const args = cliOptions.arguments.bundle;
    let { bundleOutput, assetsDest = '', sourcemapOutput = '' } = args;
    if (!path.isAbsolute(bundleOutput)) {
      bundleOutput = path.join(cliOptions.config.root, bundleOutput);
    }
    const bundleOutputDir = path.dirname(bundleOutput);

    if (!sourcemapOutput) {
      sourcemapOutput = `${bundleOutput}.map`;
    }
    if (!path.isAbsolute(sourcemapOutput)) {
      sourcemapOutput = path.join(cliOptions.config.root, sourcemapOutput);
    }

    if (!assetsDest) {
      assetsDest = bundleOutputDir;
    }

    let remoteChunksOutput = this.config.remoteChunksOutput;
    if (remoteChunksOutput && !path.isAbsolute(remoteChunksOutput)) {
      remoteChunksOutput = path.join(
        cliOptions.config.root,
        remoteChunksOutput
      );
    }