gitmoji-cli/lib/commands/commit/withHook/index.js

A gitmoji client for using emojis on commit messages.

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = exports.cancelIfNeeded = exports.cancelIfAmending = exports.COMMIT_MESSAGE_SOURCE = exports.cancelIfRebasing = exports.registerHookInterruptionHandler = void 0;

var _execa = _interopRequireDefault(require("execa"));

var _fs = _interopRequireDefault(require("fs"));

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

const withHook = answers => {
  try {
    const scope = answers.scope ? `(${answers.scope}): ` : '';
    const title = `${answers.gitmoji} ${scope}${answers.title}`;
    const commitMessage = `${title}\n\n${answers.message}`;

    _fs.default.writeFileSync(process.argv[3], commitMessage);
  } catch (error) {
    console.error(error);
    process.exit(1);
  } finally {
    process.exit(0);
  }
};

const registerHookInterruptionHandler = () => {
  // Allow to interrupt the hook without cancelling the commit
  process.on('SIGINT', () => {
    console.warn('gitmoji-cli was interrupted');
    process.exit(0);
  });
};

exports.registerHookInterruptionHandler = registerHookInterruptionHandler;

const cancelIfRebasing = () => (0, _execa.default)('git', ['rev-parse', '--absolute-git-dir']).then(({
  stdout: gitDirectory
}) => {
  // see https://stackoverflow.com/questions/3921409/how-to-know-if-there-is-a-git-rebase-in-progress
  // to understand how a rebase is detected
  if (_fs.default.existsSync(gitDirectory + '/rebase-merge') || _fs.default.existsSync(gitDirectory + '/rebase-apply')) {
    process.exit(0);
  }
});

exports.cancelIfRebasing = cancelIfRebasing;
const COMMIT_MESSAGE_SOURCE = 4;
exports.COMMIT_MESSAGE_SOURCE = COMMIT_MESSAGE_SOURCE;

const cancelIfAmending = () => new Promise(resolve => {
  /*
    from https://git-scm.com/docs/githooks#_prepare_commit_msg
    the commit message source is passed as second argument and corresponding 4 for gitmoji-cli
    `gitmoji --hook $1 $2`
  */
  const commitMessageSource = process.argv[COMMIT_MESSAGE_SOURCE];

  if (commitMessageSource && commitMessageSource.startsWith('commit')) {
    process.exit(0);
  }

  resolve();
}); // I avoid Promise.all to avoid race condition in future cancel callbacks


exports.cancelIfAmending = cancelIfAmending;

const cancelIfNeeded = () => cancelIfAmending().then(cancelIfRebasing);

exports.cancelIfNeeded = cancelIfNeeded;
var _default = withHook;
exports.default = _default;