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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

getChangedFilesForRoots(roots: Array<string>, options: Options): Promise<ChangedFiles>

Get the list of files and repos that have changed since the last commit.

Parameters

roots: Array of string paths gathered from jest roots.

options: Object literal with keys

  • lastCommit: boolean
  • withAncestor: boolean
  • changedSince: string

Returns

A Promise of Object literal with keys

  • changedFiles: Set<string>
  • repos:
    • git: Set<string>
    • hg: Set<string>

findRepos(roots: Array): Promise

Get a set of git and hg repositories.

Parameters

roots: Array of string paths gathered from jest roots.

Returns

A Promise of Object literal with keys

  • git: Set<string>
  • hg: Set<string>

Usage

import {getChangedFilesForRoots} from 'jest-changed-files';

getChangedFilesForRoots(['/path/to/test'], {
  lastCommit: true,
  withAncestor: true,
}).then(files => {
  /*
  {
    repos: [],
    changedFiles: []
  }
  */
});
import {getChangedFilesForRoots} from 'jest-changed-files';

getChangedFilesForRoots(['/path/to/test'], {
  changedSince: 'main',
}).then(files => {
  /*
  {
    repos: [],
    changedFiles: []
  }
  */
});
import {findRepos} from 'jest-changed-files';

findRepos(['/path/to/test']).then(repos => {
  /*
  {
    git: Set<Path>,
    hg: Set<Path>
  }
  */
});