Function restore

src/cache.ts:112–128

(id: string, cacheDependencyPath: string)

 * @param cacheDependencyPath The path to a dependency file
 */
export async function restore(id: string, cacheDependencyPath: string) {
  const packageManager = findPackageManager(id);
  const primaryKey = await computeCacheKey(packageManager, cacheDependencyPath);
  core.debug(`primary key is ${primaryKey}`);
  core.saveState(STATE_CACHE_PRIMARY_KEY, primaryKey);

  // No "restoreKeys" is set, to start with a clear cache after dependency update (see https://github.com/actions/setup-java/issues/269)
  const matchedKey = await cache.restoreCache(packageManager.path, primaryKey);
  if (matchedKey) {
    core.saveState(CACHE_MATCHED_KEY, matchedKey);
    core.setOutput('cache-hit', matchedKey === primaryKey);
    core.info(`Cache restored from key: ${matchedKey}`);
  } else {
    core.setOutput('cache-hit', false);
    core.info(`${packageManager.id} cache is not found`);
  }
}

/**
 * Save the dependency cache