gitmoji-cli/lib/utils/getDefaultCommitContent.js

A gitmoji client for using emojis on commit messages.

import fs from 'fs';
import COMMIT_MODES from "../constants/commit.js";
const COMMIT_FILE_PATH_INDEX = 3;
const COMMIT_TITLE_LINE_INDEX = 0;
const COMMIT_MESSAGE_LINE_INDEX = 2;
const getDefaultCommitContent = options => {
  /*
    Since the hook is called with `gitmoji --hook $1`
    According to https://git-scm.com/docs/githooks#_prepare_commit_msg,
    the commit file path will be stored in the 4th argument of the command
  */
  const commitFilePath = process.argv[COMMIT_FILE_PATH_INDEX];
  if (options.mode === COMMIT_MODES.CLIENT || !fs.existsSync(commitFilePath)) {
    return {
      message: options['message'] || null,
      scope: options['scope'] || null,
      title: options['title'] || null
    };
  }
  const commitFileContent = fs.readFileSync(commitFilePath).toString().split('\n');
  return {
    message: commitFileContent.length > COMMIT_MESSAGE_LINE_INDEX ? commitFileContent[COMMIT_MESSAGE_LINE_INDEX] : null,
    scope: options['scope'],
    title: commitFileContent[COMMIT_TITLE_LINE_INDEX]
  };
};
export default getDefaultCommitContent;