itns-sidechain/scripts/gen-hsclient.js

#!/usr/bin/env node

'use strict';

const assert = require('bsert');
const path = require('path');
const os = require('os');
const util = require('util');
const cp = require('child_process');
const exec = util.promisify(cp.exec);
const fs = require('bfile');
const Config = require('bcfg');

const ROOT = path.dirname(__dirname);
const NAME = 'hs-client';
const HSD_PKG = require(path.join(ROOT, 'package.json'));

const REMOTE = 'git@github.com:handshake-org/hs-client.git';

const INIT_HS_CLIENT_PKG = {
  name: 'hs-client',
  description: 'HSD node and wallet client',
  keywords: [
    'http',
    'request',
    'socket.io',
    'websockets'
  ],
  main: './lib/client/index.js',
  bin: {
    'hsd-cli': './bin/hsd-cli',
    'hsd-rpc': './bin/hsd-rpc',
    'hsw-cli': './bin/hsw-cli',
    'hsw-rpc': './bin/hsw-rpc'
  },
  engines: {
    node: '>=8.0.0'
  }
};

const INHERIT_PROPERTIES = [
  'version',
  'license',
  'repository',
  'homepage',
  'bugs',
  'author'
];

const DEPENDENCIES = [
  'bcfg',
  'bcurl',
  'bsert'
];

const COPY_FILES = [
  '.npmignore',
  '.gitignore',
  'bin/hsd-cli',
  'bin/hsw-cli',
  'bin/hsd-rpc',
  'bin/hsw-rpc',
  'lib/client/index.js',
  'lib/client/wallet.js',
  'lib/client/node.js',
  'LICENSE',
  'SECURITY.md'
];

const README = `
hs-client
=========

Autogenerated from https://github.com/handshake-org/hsd.

REST and RPC client for handshake.

## Usage

\`\`\` js
const {NodeClient, WalletClient} = require('hs-client');
\`\`\`
`;

const HELP = `Usage: gen-hsclient [DIRECTORY] [OPTIONS]...
Generate hs-client package in DIRECTORY.

OPTIONS:
  --no-git - Don't setup git.
  --verbose - Verbose output.
  --no-steps - Don't print next steps.
`;

async function ensureDir(dir) {
  dir = path.resolve(dir);

  if (dir.startsWith(ROOT))
    throw new Error(`${NAME} needs to be outside of the hsd. ${dir}`);

  if (await fs.exists(dir)) {
    throw new Error(
      `Directory ${dir} already exists.`
      + ' Please remove to proceed or choose different directory.'
    );
  }

  await fs.mkdir(dir);
  return dir;
}

async function setupPackageContent(dir) {
  for (const file of COPY_FILES) {
    const src = path.join(ROOT, file);
    const dst = path.join(dir, file);
    const dstDir = path.dirname(dst);

    if (!await fs.exists(dstDir))
      await fs.mkdirp(dstDir);

    await fs.copy(src, dst);
  }

  const hsClientPkg = {
    ...INIT_HS_CLIENT_PKG
  };

  for (const name of INHERIT_PROPERTIES) {
    assert(HSD_PKG[name]);
    hsClientPkg[name] = HSD_PKG[name];
  }

  hsClientPkg.dependencies = {};
  for (const dep of DEPENDENCIES) {
    assert(HSD_PKG.dependencies[dep], `Dependency "${dep}" not found for hsd.`);
    hsClientPkg.dependencies[dep] = HSD_PKG.dependencies[dep];
  }

  await fs.writeJSON(path.join(dir, 'package.json'), hsClientPkg);
  await fs.writeFile(path.join(dir, 'README.md'), README);

  return hsClientPkg;
}

async function setupGit(dir, log) {
  const commands = [
    'git init -b master',
    `git remote add origin ${REMOTE}`,
    'git fetch -q origin master',
    'git pull -q origin master',
    'git rm -r .'
  ];

  log('Setting up git: ', dir);

  for (const cmd of [...commands]) {
    log(` > ${cmd} in ${dir}.`);
    log(await execCmd(cmd, dir, 20000));
    commands.shift();
  }
}

async function finalGit(dir, version, log) {
  const commands = [
    'git add .',
    `git commit --gpg-sign -m "v${version}"`,
    `git tag --sign v${version} -m "v${version}"`
  ];

  const manualCommands = [
    'git push origin master',
    `git push origin v${version}`
  ];

  for (const cmd of [...commands]) {
    log(` > ${cmd} in ${dir}.`);

    try {
      log(await execCmd(cmd, dir));
    } catch (e) {
      console.log(`Failed to execute: ${cmd}.`);
      console.log(e.message);
      console.log('You need to proceed manually.');
      break;
    }

    commands.shift();
  }

  return [...commands, ...manualCommands];
}

(async () => {
  const config = new Config('hsd', {
    alias: {
      'v': 'verbose'
    }
  });

  config.load({
    argv: true,
    env: true
  });

  if (config.bool('help')) {
    console.log(HELP);
    process.exit(0);
  }

  const dir = config.str(0, tmpdir());
  const verbose = config.bool('verbose', false);
  const noGit = config.bool('no-git', false);
  const noSteps = config.bool('no-steps', false);

  const log = verbose ? console.log : () => {};

  const pkgDir = await ensureDir(dir);

  if (!noSteps && !noGit)
    await setupGit(pkgDir, log);

  log(`Copying files to ${pkgDir}...`);
  const pkg = await setupPackageContent(pkgDir);

  if (noSteps)
    return;

  let gitNext;

  if (!noGit)
    gitNext = await finalGit(pkgDir, pkg.version, log);

  console.log(`Generated ${pkgDir}.`);
  console.log('Next steps:');
  console.log(` $ cd ${pkgDir}`);

  if (!noGit) {
    assert(gitNext);
    console.log('Git Next:');
    for (const cmd of gitNext)
      console.log(` $ ${cmd}`);
  }

  console.log('NPM Next:');
  console.log(' $ npm publish --dry-run # check if everything is ok');
  console.log(' $ npm publish');
})().catch((err) => {
  console.log('Try passing --help for help.');
  console.error(err.stack);
  process.exit(1);
});

function tmpdir() {
  return path.join(os.tmpdir(), NAME + '-' + Date.now());
}

async function execCmd(cmd, cwd, timeout = 2000) {
  assert(cwd, 'CWD is required.');

  const {stdout, stderr} = await exec(cmd, {
    cwd,
    timeout
  });

  if (stderr.length !== 0)
    throw new Error(stderr);

  return stdout;
}