Method execute

sources/commands/deprecated/Hydrate.ts:20–70

()

  fileName = Option.String();

  async execute() {
    const installFolder = folderUtils.getInstallFolder();
    const fileName = path.resolve(this.context.cwd, this.fileName);

    const archiveEntries = new Map<string, Set<string>>();
    let hasShortEntries = false;

    const {list: tarT} = await import(`tar/list`);

    await tarT({file: fileName, onentry: entry => {
      const segments = entry.path.split(/\//g);

      if (segments.length < 3) {
        hasShortEntries = true;
      } else {
        let references = archiveEntries.get(segments[0]);
        if (typeof references === `undefined`)
          archiveEntries.set(segments[0], references = new Set());

        references.add(segments[1]);
      }
    }});

    if (hasShortEntries || archiveEntries.size < 1)
      throw new UsageError(`Invalid archive format; did it get generated by 'corepack prepare'?`);

    const {extract: tarX} = await import(`tar/extract`);

    for (const [name, references] of archiveEntries) {
      for (const reference of references) {
        if (!isSupportedPackageManager(name))
          throw new UsageError(`Unsupported package manager '${name}'`);

        if (this.activate)
          this.context.stdout.write(`Hydrating ${name}@${reference} for immediate activation...\n`);
        else
          this.context.stdout.write(`Hydrating ${name}@${reference}...\n`);

        // Recreate the folder in case it was deleted somewhere else:
        await mkdir(installFolder, {recursive: true});

        await tarX({file: fileName, cwd: installFolder}, [`${name}/${reference}`]);

        if (this.activate) {
          await this.context.engine.activatePackageManager({name, reference});
        }
      }
    }

    this.context.stdout.write(`All done!\n`);
  }
}