node-gyp 3.0.3-2ubuntu1 / usr / share / node-gyp / lib / process-release.js

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var semver = require('semver')
  , url = require('url')
  , path = require('path')

  , bitsre = /\/win-(x86|x64)\//
  , bitsreV3 = /\/win-(x86|ia32|x64)\// // io.js v3.x.x shipped with "ia32" but should
                                        // have been "x86"

// Captures all the logic required to determine download URLs, local directory and 
// file names. Inputs come from command-line switches (--target, --dist-url),
// `process.version` and `process.release` where it exists.
function processRelease (argv, gyp, defaultVersion, defaultRelease) {
  var version = (semver.valid(argv[0]) && argv[0]) || gyp.opts.target || defaultVersion
    , versionSemver = semver.parse(version)
    , overrideDistUrl = gyp.opts['dist-url'] || gyp.opts.disturl
    , isDefaultVersion
    , isIojs
    , name
    , distBaseUrl
    , baseUrl
    , libUrl32
    , libUrl64
    , tarballUrl

  if (!versionSemver) {
    // not a valid semver string, nothing we can do
    return { version: version }
  }
  // flatten version into String
  version = versionSemver.version

  // defaultVersion should come from process.version so ought to be valid semver
  isDefaultVersion = version === semver.parse(defaultVersion).version

  // can't use process.release if we're using --target=x.y.z
  if (!isDefaultVersion)
    defaultRelease = null

  if (defaultRelease) {
    // v3 onward, has process.release
    name = defaultRelease.name.replace(/io\.js/, 'iojs') // remove the '.' for directory naming purposes
    isIojs = name === 'iojs'
  } else {
    // old node or alternative --target=
    // semver.satisfies() doesn't like prerelease tags so test major directly
    isIojs = versionSemver.major >= 1 && versionSemver.major < 4
    name = isIojs ? 'iojs' : 'node'
  }

  // check for the nvm.sh standard mirror env variables
  if (!overrideDistUrl) {
    if (isIojs && process.env.NVM_IOJS_ORG_MIRROR)
      overrideDistUrl = process.env.NVM_IOJS_ORG_MIRROR
    else if (process.env.NVM_NODEJS_ORG_MIRROR)
      overrideDistUrl = process.env.NVM_NODEJS_ORG_MIRROR
  }


  if (overrideDistUrl)
    distBaseUrl = overrideDistUrl.replace(/\/+$/, '')
  else
    distBaseUrl = isIojs ? 'https://iojs.org/download/release' : 'https://nodejs.org/dist'
  distBaseUrl += '/v' + version + '/'

  // new style, based on process.release so we have a lot of the data we need
  if (defaultRelease && defaultRelease.headersUrl && !overrideDistUrl) {
    baseUrl = url.resolve(defaultRelease.headersUrl, './')
    libUrl32 = resolveLibUrl(name, defaultRelease.libUrl || baseUrl || distBaseUrl, 'x86', versionSemver.major)
    libUrl64 = resolveLibUrl(name, defaultRelease.libUrl || baseUrl || distBaseUrl, 'x64', versionSemver.major)

    return {
      version: version,
      semver: versionSemver,
      name: name,
      baseUrl: baseUrl,
      tarballUrl: defaultRelease.headersUrl,
      shasumsUrl: url.resolve(baseUrl, 'SHASUMS256.txt'),
      versionDir: (name !== 'node' ? name + '-' : '') + version,
      libUrl32: libUrl32,
      libUrl64: libUrl64,
      libPath32: normalizePath(path.relative(url.parse(baseUrl).path, url.parse(libUrl32).path)),
      libPath64: normalizePath(path.relative(url.parse(baseUrl).path, url.parse(libUrl64).path))
    }
  }

  // older versions without process.release are captured here and we have to make
  // a lot of assumptions, additionally if you --target=x.y.z then we can't use the
  // current process.release

  baseUrl = distBaseUrl
  libUrl32 = resolveLibUrl(name, baseUrl, 'x86', versionSemver.major)
  libUrl64 = resolveLibUrl(name, baseUrl, 'x64', versionSemver.major)
  // making the bold assumption that anything with a version number >3.0.0 will
  // have a *-headers.tar.gz file in its dist location, even some frankenstein
  // custom version
  tarballUrl = url.resolve(baseUrl, name + '-v' + version + (versionSemver.major >= 3 ? '-headers' : '') + '.tar.gz')

  return {
    version: version,
    semver: versionSemver,
    name: name,
    baseUrl: baseUrl,
    tarballUrl: tarballUrl,
    shasumsUrl: url.resolve(baseUrl, 'SHASUMS256.txt'),
    versionDir: (name !== 'node' ? name + '-' : '') + version,
    libUrl32: libUrl32,
    libUrl64: libUrl64,
    libPath32: normalizePath(path.relative(url.parse(baseUrl).path, url.parse(libUrl32).path)),
    libPath64: normalizePath(path.relative(url.parse(baseUrl).path, url.parse(libUrl64).path))
  }
}

function normalizePath (p) {
  return path.normalize(p).replace(/\\/g, '/')
}

function resolveLibUrl (name, defaultUrl, arch, versionMajor) {
  var base = url.resolve(defaultUrl, './')
    , hasLibUrl = bitsre.test(defaultUrl) || (versionMajor === 3 && bitsreV3.test(defaultUrl))

  if (!hasLibUrl) {
    // let's assume it's a baseUrl then
    if (versionMajor >= 1)
      return url.resolve(base, 'win-' + arch  +'/' + name + '.lib')
    // prior to io.js@1.0.0 32-bit node.lib lives in /, 64-bit lives in /x64/
    return url.resolve(base, (arch === 'x64' ? 'x64/' : '') + name + '.lib')
  }

  // else we have a proper url to a .lib, just make sure it's the right arch
  return defaultUrl.replace(versionMajor === 3 ? bitsreV3 : bitsre, '/win-' + arch + '/')
}

module.exports = processRelease

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