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node_modules/node-gyp/lib/node-gyp.js

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+
+/**
+ * Module exports.
+ */
+
+module.exports = exports = gyp
+
+/**
+ * Module dependencies.
+ */
+
+var fs = require('graceful-fs')
+  , path = require('path')
+  , nopt = require('nopt')
+  , log = require('npmlog')
+  , child_process = require('child_process')
+  , EE = require('events').EventEmitter
+  , inherits = require('util').inherits
+  , commands = [
+      // Module build commands
+        'build'
+      , 'clean'
+      , 'configure'
+      , 'rebuild'
+      // Development Header File management commands
+      , 'install'
+      , 'list'
+      , 'remove'
+    ]
+  , aliases = {
+        'ls': 'list'
+      , 'rm': 'remove'
+    }
+
+// differentiate node-gyp's logs from npm's
+log.heading = 'gyp'
+
+/**
+ * The `gyp` function.
+ */
+
+function gyp () {
+  return new Gyp()
+}
+
+function Gyp () {
+  var self = this
+
+  this.devDir = ''
+  this.commands = {}
+
+  commands.forEach(function (command) {
+    self.commands[command] = function (argv, callback) {
+      log.verbose('command', command, argv)
+      return require('./' + command)(self, argv, callback)
+    }
+  })
+}
+inherits(Gyp, EE)
+exports.Gyp = Gyp
+var proto = Gyp.prototype
+
+/**
+ * Export the contents of the package.json.
+ */
+
+proto.package = require('../package')
+
+/**
+ * nopt configuration definitions
+ */
+
+proto.configDefs = {
+    help: Boolean     // everywhere
+  , arch: String      // 'configure'
+  , cafile: String    // 'install'
+  , debug: Boolean    // 'build'
+  , directory: String // bin
+  , make: String      // 'build'
+  , msvs_version: String // 'configure'
+  , ensure: Boolean   // 'install'
+  , solution: String  // 'build' (windows only)
+  , proxy: String     // 'install'
+  , devdir: String   // everywhere
+  , nodedir: String   // 'configure'
+  , loglevel: String  // everywhere
+  , python: String    // 'configure'
+  , 'dist-url': String // 'install'
+  , 'tarball': String // 'install'
+  , jobs: String      // 'build'
+  , thin: String      // 'configure'
+}
+
+/**
+ * nopt shorthands
+ */
+
+proto.shorthands = {
+    release: '--no-debug'
+  , C: '--directory'
+  , debug: '--debug'
+  , j: '--jobs'
+  , silly: '--loglevel=silly'
+  , verbose: '--loglevel=verbose'
+  , silent: '--loglevel=silent'
+}
+
+/**
+ * expose the command aliases for the bin file to use.
+ */
+
+proto.aliases = aliases
+
+/**
+ * Parses the given argv array and sets the 'opts',
+ * 'argv' and 'command' properties.
+ */
+
+proto.parseArgv = function parseOpts (argv) {
+  this.opts = nopt(this.configDefs, this.shorthands, argv)
+  this.argv = this.opts.argv.remain.slice()
+
+  var commands = this.todo = []
+
+  // create a copy of the argv array with aliases mapped
+  argv = this.argv.map(function (arg) {
+    // is this an alias?
+    if (arg in this.aliases) {
+      arg = this.aliases[arg]
+    }
+    return arg
+  }, this)
+
+  // process the mapped args into "command" objects ("name" and "args" props)
+  argv.slice().forEach(function (arg) {
+    if (arg in this.commands) {
+      var args = argv.splice(0, argv.indexOf(arg))
+      argv.shift()
+      if (commands.length > 0) {
+        commands[commands.length - 1].args = args
+      }
+      commands.push({ name: arg, args: [] })
+    }
+  }, this)
+  if (commands.length > 0) {
+    commands[commands.length - 1].args = argv.splice(0)
+  }
+
+  // support for inheriting config env variables from npm
+  var npm_config_prefix = 'npm_config_'
+  Object.keys(process.env).forEach(function (name) {
+    if (name.indexOf(npm_config_prefix) !== 0) return
+    var val = process.env[name]
+    if (name === npm_config_prefix + 'loglevel') {
+      log.level = val
+    } else {
+      // add the user-defined options to the config
+      name = name.substring(npm_config_prefix.length)
+      // gyp@741b7f1 enters an infinite loop when it encounters
+      // zero-length options so ensure those don't get through.
+      if (name) this.opts[name] = val
+    }
+  }, this)
+
+  if (this.opts.loglevel) {
+    log.level = this.opts.loglevel
+  }
+  log.resume()
+}
+
+/**
+ * Spawns a child process and emits a 'spawn' event.
+ */
+
+proto.spawn = function spawn (command, args, opts) {
+  if (!opts) opts = {}
+  if (!opts.silent && !opts.stdio) {
+    opts.stdio = [ 0, 1, 2 ]
+  }
+  var cp = child_process.spawn(command, args, opts)
+  log.info('spawn', command)
+  log.info('spawn args', args)
+  return cp
+}
+
+/**
+ * Returns the usage instructions for node-gyp.
+ */
+
+proto.usage = function usage () {
+  var str = [
+      ''
+    , '  Usage: node-gyp <command> [options]'
+    , ''
+    , '  where <command> is one of:'
+    , commands.map(function (c) {
+        return '    - ' + c + ' - ' + require('./' + c).usage
+      }).join('\n')
+    , ''
+    , 'node-gyp@' + this.version + '  ' + path.resolve(__dirname, '..')
+    , 'node@' + process.versions.node
+  ].join('\n')
+  return str
+}
+
+/**
+ * Version number getter.
+ */
+
+Object.defineProperty(proto, 'version', {
+    get: function () {
+      return this.package.version
+    }
+  , enumerable: true
+})
+