Introduction to isomorphic-git

isomorphic-git is a pure JavaScript implementation of git that works anywhere: it can run in the browser, on Node.js, in serverless environments, and more. This makes it an incredibly versatile tool for developers looking to integrate git functionality directly into their web applications.

Getting Started with isomorphic-git

To start using isomorphic-git, you first need to install it using npm or yarn:

  npm install isomorphic-git

Key API Examples

Clone a Repository

  const git = require('isomorphic-git');
  const fs = require('fs');
  const http = require('isomorphic-git/http/node');

  async function cloneRepo() {
    await git.clone({
      fs,
      http,
      dir: '/tutorial',
      url: 'https://github.com/isomorphic-git/isomorphic-git',
    });
  }

  cloneRepo();

Commit Changes

  async function commitChanges() {
    await git.commit({
      fs,
      dir: '/tutorial',
      author: {
        name: 'Your Name',
        email: 'you@example.com',
      },
      message: 'Initial commit',
    });
  }

  commitChanges();

Push to a Remote Repository

  async function pushToRemote() {
    await git.push({
      fs,
      http,
      dir: '/tutorial',
      remote: 'origin',
    });
  }

  pushToRemote();

Fetch from a Remote Repository

  async function fetchFromRemote() {
    await git.fetch({
      fs,
      http,
      dir: '/tutorial',
      remote: 'origin',
    });
  }

  fetchFromRemote();

Check Status

  async function checkStatus() {
    const status = await git.status({
      fs,
      dir: '/tutorial',
      filepath: 'README.md',
    });
    console.log(status);
  }

  checkStatus();

Complete App Example

Below is a full example demonstrating how to use several of the APIs together in a basic application:

  const git = require('isomorphic-git');
  const fs = require('fs');
  const http = require('isomorphic-git/http/node');

  async function run() {
    await git.clone({
      fs,
      http,
      dir: '/full-app',
      url: 'https://github.com/isomorphic-git/isomorphic-git',
    });

    // Make some changes to the clone
    fs.writeFileSync('/full-app/README.md', 'Updated content');

    await git.add({ fs, dir: '/full-app', filepath: 'README.md' });
    await git.commit({
      fs,
      dir: '/full-app',
      author: {
        name: 'Your Name',
        email: 'you@example.com',
      },
      message: 'Updated README.md'
    });

    await git.push({
      fs,
      http,
      dir: '/full-app',
      remote: 'origin',
    });

    const status = await git.status({
      fs,
      dir: '/full-app',
      filepath: 'README.md',
    });
    console.log(`Current status of README.md: ${status}`);
  }

  run();

In this example, we start by cloning a repository, making changes to a file, adding and committing those changes, pushing to the remote repository, and finally checking the status of the modified file.

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