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module.exports = exports = install
exports.usage = 'Install node development files for the specified node version.'
/**
* Module dependencies.
*/
var fs = require('graceful-fs')
, tar = require('tar')
, rm = require('rimraf')
, path = require('path')
, zlib = require('zlib')
, semver = require('semver')
, fstream = require('fstream')
, request = require('request')
, minimatch = require('minimatch')
, mkdir = require('./util/mkdirp')
, distUrl = 'http://nodejs.org/dist'
, win = process.platform == 'win32'
function install (gyp, argv, callback) {
// ensure no double-callbacks happen
function cb (err) {
if (cb.done) return
cb.done = true
if (err) {
gyp.verbose('got an error, rolling back install')
// roll-back the install if anything went wrong
gyp.commands.remove([ version ], function (err2) {
callback(err)
})
} else {
callback(null, version)
}
}
// Determine which node dev files version we are installing
var versionStr = argv[0] || gyp.opts.target || process.version
gyp.verbose('input version string', versionStr)
// parse the version to normalize and ensure it's valid
var version = semver.parse(versionStr)
if (!version) {
return callback(new Error('Invalid version number: ' + versionStr))
}
// "legacy" versions are 0.7 and 0.6
var isLegacy = semver.lt(versionStr, '0.8.0')
gyp.verbose('installing legacy version?', isLegacy)
if (semver.lt(versionStr, '0.6.0')) {
return callback(new Error('Minimum target version is `0.6.0` or greater. Got: ' + versionStr))
}
// 0.x.y-pre versions are not published yet. Use previous release.
if (version[5] === '-pre') {
version[3] = +version[3] - 1
version[5] = null
gyp.verbose('-pre version detected, adjusting patch version')
}
// flatten version into String
version = version.slice(1, 4).join('.')
gyp.verbose('installing version', version)
// the directory where the dev files will be installed
var devDir = path.resolve(gyp.devDir, version)
// If '--ensure' was passed, then don't *always* install the version;
// check if it is already installed, and only install when needed
if (gyp.opts.ensure) {
gyp.verbose('--ensure was passed, so won\'t reinstall if already installed')
fs.stat(devDir, function (err, stat) {
if (err) {
if (err.code == 'ENOENT') {
gyp.verbose('version not already installed, continuing with install', version)
go()
} else {
cb(err)
}
return
}
gyp.verbose('version is already installed, need to check "installVersion"')
var installVersionFile = path.resolve(devDir, 'installVersion')
fs.readFile(installVersionFile, 'ascii', function (err, ver) {
if (err && err.code != 'ENOENT') {
return cb(err)
}
var installVersion = parseInt(ver, 10) || 0
gyp.verbose('got "installVersion":', installVersion)
gyp.verbose('needs "installVersion":', gyp.package.installVersion)
if (installVersion < gyp.package.installVersion) {
gyp.verbose('version is no good; reinstalling')
go()
} else {
gyp.verbose('version is good')
cb()
}
})
})
} else {
go()
}
function download (url, onError) {
gyp.info('downloading:', url)
var requestOpts = {
uri: url
, onResponse: true
}
// basic support for a proxy server
var proxyUrl = gyp.opts.proxy
|| process.env.http_proxy
|| process.env.HTTP_PROXY
|| process.env.npm_config_proxy
if (proxyUrl) {
gyp.verbose('using proxy:', proxyUrl)
requestOpts.proxy = proxyUrl
}
return request(requestOpts, onError)
}
function go () {
// first create the dir for the node dev files
mkdir(devDir, function (err, created) {
if (err) return cb(err)
if (created) {
gyp.verbose('created:', devDir)
} else {
gyp.verbose('directory already existed:', devDir)
}
// now download the node tarball
var tarballUrl = distUrl + '/v' + version + '/node-v' + version + '.tar.gz'
, badDownload = false
, extractCount = 0
, gunzip = zlib.createGunzip()
, extracter = tar.Extract({ path: devDir, strip: 1, filter: isValid })
// checks if a file to be extracted from the tarball is valid.
// only .h header files and the gyp files get extracted
function isValid () {
var name = this.path.substring(devDir.length + 1)
, _valid = valid(name)
if (name === '' && this.type === 'Directory') {
// the first directory entry is ok
return true
}
if (_valid) {
gyp.verbose('extracted file from tarball', name)
extractCount++
} else {
// invalid
}
return _valid
}
gunzip.on('error', cb)
extracter.on('error', cb)
extracter.on('end', afterTarball)
// download the tarball, gunzip and extract!
var req = download(tarballUrl, downloadError)
.pipe(gunzip)
.pipe(extracter)
// something went wrong downloading the tarball?
function downloadError (err, res) {
if (err || res.statusCode != 200) {
badDownload = true
cb(err || new Error(res.statusCode + ' status code downloading tarball'))
}
}
// invoked after the tarball has finished being extracted
function afterTarball () {
if (badDownload) return
if (extractCount === 0) {
return cb(new Error('There was a fatal problem while downloading/extracting the tarball'))
}
gyp.verbose('done parsing tarball')
var async = 0
if (isLegacy) {
// copy over the files from the `legacy` dir
async++
copyLegacy(deref)
}
if (win) {
// need to download node.lib
async++
downloadNodeLib(deref)
}
// write the "installVersion" file
async++
var installVersionPath = path.resolve(devDir, 'installVersion')
fs.writeFile(installVersionPath, gyp.package.installVersion + '\n', deref)
if (async === 0) {
// no async tasks required
cb()
}
function deref (err) {
if (err) return cb(err)
--async || cb()
}
}
function copyLegacy (done) {
// legacy versions of node (< 0.8) require the legacy files to be copied
// over since they contain many bugfixes from the current node build system
gyp.verbose('copying "legacy" gyp configuration files for version', version)
var legacyDir = path.resolve(__dirname, '..', 'legacy')
gyp.verbose('using "legacy" dir', legacyDir)
gyp.verbose('copying to "dev" dir', devDir)
var reader = fstream.Reader({ path: legacyDir, type: 'Directory' })
, writer = fstream.Writer({ path: devDir, type: 'Directory' })
reader.on('entry', function onEntry (entry) {
gyp.verbose('reading entry', entry.path)
entry.on('entry', onEntry)
})
reader.on('error', done)
writer.on('error', done)
// Like `cp -rpf`
reader.pipe(writer)
reader.on('end', done)
}
function downloadNodeLib (done) {
gyp.verbose('on Windows; need to download `node.lib`...')
var dir32 = path.resolve(devDir, 'ia32')
, dir64 = path.resolve(devDir, 'x64')
, nodeLibPath32 = path.resolve(dir32, 'node.lib')
, nodeLibPath64 = path.resolve(dir64, 'node.lib')
, nodeLibUrl32 = distUrl + '/v' + version + '/node.lib'
, nodeLibUrl64 = distUrl + '/v' + version + '/x64/node.lib'
gyp.verbose('32-bit node.lib dir', dir32)
gyp.verbose('64-bit node.lib dir', dir64)
gyp.verbose('`node.lib` 32-bit url', nodeLibUrl32)
gyp.verbose('`node.lib` 64-bit url', nodeLibUrl64)
var async = 2
mkdir(dir32, function (err) {
if (err) return done(err)
gyp.verbose('streaming 32-bit node.lib to:', nodeLibPath32)
var req = download(nodeLibUrl32)
req.on('error', done)
req.on('response', function (res) {
if (res.statusCode !== 200) {
done(new Error(res.statusCode + ' status code downloading 32-bit node.lib'))
}
})
req.on('end', function () {
--async || done()
})
var ws = fs.createWriteStream(nodeLibPath32)
ws.on('error', cb)
req.pipe(ws)
})
mkdir(dir64, function (err) {
if (err) return done(err)
gyp.verbose('streaming 64-bit node.lib to:', nodeLibPath64)
var req = download(nodeLibUrl64)
req.on('error', done)
req.on('response', function (res) {
if (res.statusCode !== 200) {
done(new Error(res.statusCode + ' status code downloading 64-bit node.lib'))
}
})
req.on('end', function () {
--async || done()
})
var ws = fs.createWriteStream(nodeLibPath64)
ws.on('error', cb)
req.pipe(ws)
})
}
})
}
/**
* Checks if a given filename is "valid" for this installation.
*/
function valid (file) {
// header files
return minimatch(file, '*.h', { matchBase: true })
// non-legacy versions of node also extract the gyp build files
|| (!isLegacy &&
(minimatch(file, '*.gypi', { matchBase: true })
|| minimatch(file, 'tools/gyp_addon')
|| (minimatch(file, 'tools/gyp/**') && !minimatch(file, 'tools/gyp/test/**'))
)
)
}
}
install.trim = function trim (file) {
var firstSlash = file.indexOf('/')
return file.substring(firstSlash + 1)
}