web-ext-run/lib/util/artifacts.js

A tool to open and run web extensions

import fs from 'fs/promises';
import { UsageError, isErrorWithCode } from '../errors.js';
import { createLogger } from './logger.js';
const log = createLogger(import.meta.url);
const defaultAsyncFsAccess = fs.access.bind(fs);
export async function prepareArtifactsDir(artifactsDir, {
  asyncMkdirp = dirPath => fs.mkdir(dirPath, {
    recursive: true
  }),
  asyncFsAccess = defaultAsyncFsAccess
} = {}) {
  try {
    const stats = await fs.stat(artifactsDir);
    if (!stats.isDirectory()) {
      throw new UsageError(`--artifacts-dir="${artifactsDir}" exists but it is not a directory.`);
    }
    // If the artifactsDir already exists, check that we have the write permissions on it.
    try {
      await asyncFsAccess(artifactsDir, fs.constants.W_OK);
    } catch (accessErr) {
      if (isErrorWithCode('EACCES', accessErr)) {
        throw new UsageError(`--artifacts-dir="${artifactsDir}" exists but the user lacks ` + 'permissions on it.');
      } else {
        throw accessErr;
      }
    }
  } catch (error) {
    if (isErrorWithCode('EACCES', error)) {
      // Handle errors when the artifactsDir cannot be accessed.
      throw new UsageError(`Cannot access --artifacts-dir="${artifactsDir}" because the user ` + `lacks permissions: ${error}`);
    } else if (isErrorWithCode('ENOENT', error)) {
      // Create the artifact dir if it doesn't exist yet.
      try {
        log.debug(`Creating artifacts directory: ${artifactsDir}`);
        await asyncMkdirp(artifactsDir);
      } catch (mkdirErr) {
        if (isErrorWithCode('EACCES', mkdirErr)) {
          // Handle errors when the artifactsDir cannot be created for lack of permissions.
          throw new UsageError(`Cannot create --artifacts-dir="${artifactsDir}" because the ` + `user lacks permissions: ${mkdirErr}`);
        } else {
          throw mkdirErr;
        }
      }
    } else {
      throw error;
    }
  }
  return artifactsDir;
}
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