changed-log/src/package-repo.js

Returns all commit messages between 2 versions of an NPM module

var la = require('lazy-ass')
var check = require('check-more-types')
var Promise = require('bluebird')
var R = require('ramda')
var debug = require('debug')('changed')
var packageField = require('package-json')
var utils = require('./utils')
/* eslint no-console:0 */
var log = console.log.bind(console)

function getRepo (info) {
  debug('Getting repo from info object')
  debug(info)

  if (check.object(info.repository)) {
    return info.repository
  }

  la(check.object(info.versions), 'missing versions', info)
  var latestTag = R.last(Object.keys(info.versions))
  var latest = info.versions[latestTag]
  return latest.repository
}

function failedAtSomething (label, err) {
  console.error('failed at %s', label)
  console.error(err)
  return Promise.reject(err)
}

// resolves with the github url for the given NPM package name
function packageRepo (name) {
  la(check.unemptyString(name), 'missing package name', name)

  if (utils.isGithubName(name)) {
    debug('package name "%s" is repo', name)
    return Promise.resolve(utils.parseGithubName(name))
  }

  debug('getting package repo for "%s"', name)
  var json

  return Promise.resolve(packageField(name))
    .then(R.tap(debug), R.partial(failedAtSomething, 'package field'))
    .tap(function (info) {
      json = info
    })
    .then(getRepo)
    .catch(R.partial(failedAtSomething, 'getting repo info'))
    .then(function (repo) {
      debug('just the repo', repo)
      utils.verifyGithub(json, repo)
      return repo
    })
    .then(R.prop('url'))
    .then(utils.parseGithubUrl)
    .then(R.tap(function (parsed) {
      debug('parsed github url', parsed)
    }))
}

module.exports = packageRepo

if (!module.parent) {
  (function () {
    // var name = 'next-update';
    var name = 'grunt-contrib-jshint'
    log('getting repo info for package %s', name)
    packageRepo(name)
      .then(log)
      .catch(log)
  }())
}