@storybook/storybook-deployer/bin/storybook_to_ghpages

#!/usr/bin/env node

const shell = require('shelljs');
const publishUtils = require('../src/utils');
const path = require('path');
const packageJson = require(path.resolve('./package.json'));
const parseRepo = require('parse-repo');

const parseArgs = require('../src/parse-args');
const build = require('../src/build');
const { config, ...args } = parseArgs(packageJson);

// get GIT url
console.log('=> Getting the git remote URL');
let GIT_URL = publishUtils.exec(
  `git config --get remote.${args.GIT_REMOTE}.url`
);

if (!GIT_URL) {
  console.log('This project is not configured with a remote git repo');
  process.exit(-1);
}

build(
  args.SKIP_BUILD,
  args.OUTPUT_DIR,
  packageJson,
  args.PACKAGES_DIRECTORY,
  args.NPM_SCRIPT,
  args.MONOREPO_INDEX_GENERATOR
);

if (args.DRY_RUN) {
  return;
}

// go to the out directory and create a *new* Git repo
shell.cd(args.OUTPUT_DIR);
publishUtils.exec('git init');

// if --source-branch specified, it needs to exist in the new repo too
const { SOURCE_BRANCH } = args;
if (!!SOURCE_BRANCH) {
  publishUtils.exec(`git checkout -b ${SOURCE_BRANCH}`);
}

// inside this git repo we'll pretend to be a new user
publishUtils.exec(`git config user.name ${JSON.stringify(config.gitUsername)}`);
publishUtils.exec(`git config user.email ${JSON.stringify(config.gitEmail)}`);

// disable GPG signing
publishUtils.exec('git config commit.gpgsign false');

// check if source branch argument is set, and checkout to it
if(args.SOURCE_BRANCH) {
  publishUtils.exec(`git checkout -b ${JSON.stringify(args.SOURCE_BRANCH)}`);
  console.log(`=> Deploying from source branch: ${JSON.stringify(args.SOURCE_BRANCH)}`);
}

// The first and only commit to this new Git repo contains all the
// files present with the commit message "Deploy to GitHub Pages".
publishUtils.exec('git add .');
publishUtils.exec(`git commit -m ${JSON.stringify(config.commitMessage)}`);

// Force push from the current repo's source branch (master by default) to the remote
// repo's gh-pages branch. (All previous history on the gh-pages branch
// will be lost, since we are overwriting it.) We redirect any output to
// /dev/null to hide any sensitive credential data that might otherwise be exposed.
console.log('=> Deploying storybook');

if (args.CI_DEPLOY) {
  const { host, repository } = parseRepo(GIT_URL);

  if (args.HOST_TOKEN) {
    GIT_URL = `https://${args.HOST_TOKEN}@${host}/${repository}`;
  }
}

const { TARGET_BRANCH } = args;

publishUtils.exec(
  `git push --force --quiet ${GIT_URL} ${SOURCE_BRANCH}:${TARGET_BRANCH}`
);
shell.cd('..');
shell.rm('-rf', args.OUTPUT_DIR);

if (TARGET_BRANCH !== 'gh-pages') {
  const host = GIT_URL.replace('github.com', 'rawgit.com')
    .replace('.git', '')
    .replace(/\/$/, '');
  const rawGitUrl = `${host}/${TARGET_BRANCH}/index.html`;

  console.log(`=> Storybook deployed to: ${rawGitUrl}`);
} else {
  console.log(
    `=> Storybook deployed to: ${publishUtils.getGHPagesUrl(GIT_URL)}`
  );
}