isolate-package/src/lib/output/unpack-dependencies.ts

Isolate monorepo packages to form a self-contained deployable unit

import fs from "fs-extra";
import { got } from "get-or-throw";
import path, { join } from "node:path";
import { useLogger } from "../logger";
import type { PackagesRegistry } from "../types";
import { getIsolateRelativeLogPath, unpack } from "../utils";

export async function unpackDependencies(
  packedFilesByName: Record<string, string>,
  packagesRegistry: PackagesRegistry,
  tmpDir: string,
  isolateDir: string,
) {
  const log = useLogger();

  await Promise.all(
    Object.entries(packedFilesByName).map(async ([packageName, filePath]) => {
      const dir = got(packagesRegistry, packageName).rootRelativeDir;
      const unpackDir = join(tmpDir, dir);

      log.debug("Unpacking", `(temp)/${path.basename(filePath)}`);

      await unpack(filePath, unpackDir);

      const destinationDir = join(isolateDir, dir);

      await fs.ensureDir(destinationDir);

      await fs.move(join(unpackDir, "package"), destinationDir, {
        overwrite: true,
      });

      log.debug(
        `Moved package files to ${getIsolateRelativeLogPath(
          destinationDir,
          isolateDir,
        )}`,
      );
    }),
  );
}