commit-message.js

commit-message.js

/**
 * It takes commit message and append a branch name below
 */

const fs = require('fs');
const childProcess = require('child_process');

const commitMessageFile = process.argv[2];

/**
 * feature/foobar-RN-52/FOO-123/BAR-456	=>	BAR-456
 * feature/fooBAR-123	=>	BAR-123
 * feature/foobBAR-123-some-test	=>	BAR-123
 * BAR-123-some-test	=>	BAR-123
 */
const extractTicketName = str => (str.match(/[A-Z]+-\d+/g) || []).pop();

const commitMessage = fs.readFileSync(commitMessageFile).toString();
const currentGitBranch = childProcess.execSync('git rev-parse --abbrev-ref HEAD').toString();

const jiraTicketFromBranch = extractTicketName(currentGitBranch);

if (jiraTicketFromBranch) {
  const editedCommitMessage = `${commitMessage}\n\n${jiraTicketFromBranch}`;

  fs.writeFileSync(commitMessageFile, editedCommitMessage);
}

package.json:

  "husky": {
    "hooks": {
      "pre-commit": "lint-staged",
      "pre-push": "yarn lint",
      "commit-msg": "node scripts/commit-message.js $HUSKY_GIT_PARAMS"
    }
  }