jest-changed-files

A module used internally by Jest to check which files have changed since you last committed in git or hg.

Install

$ npm install --save jest-changed-files

API

hg.isHGRepository(cwd: string): Promise<?string>

Get the root of the mercurial repository containing cwd or return null if cwd is not inside a mercurial repository.

git.isGitRepository(cwd: string): Promise<?string>

Get the root of the git repository containing cwd or return null if cwd is not inside a git repository.

hg.findChangedFiles / git.findChangedFiles (root: string): Promise<Array<string>>

Get the list of files in a git/mecurial repository that have changed since the last commit.

Usage

import {git, hg} from 'jest-changed-files';

function changedFiles(cwd) {
  return Promise.all([
    git.isGitRepository(cwd),
    hg.isHGRepository(cwd),
  ]).then(([gitRoot, hgRoot]) => {
    if (gitRoot !== null) {
      return git.findChangedFiles(gitRoot);
    } else if (hgRoot !== null) {
      return hg.findChangedFiles(hgRoot);
    } else {
      throw new Error('Not in a git or hg repo');
    }
  });
}