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var CC = require("config-chain").ConfigChain
var inherits = require("inherits")
var configDefs = require("./defaults.js")
var types = configDefs.types
var once = require("once")
var fs = require("fs")
var path = require("path")
var nopt = require("nopt")
var ini = require("ini")
var Umask = configDefs.Umask
var mkdirp = require("mkdirp")
var umask = require("../utils/umask")
exports.load = load
exports.Conf = Conf
exports.loaded = false
exports.rootConf = null
exports.usingBuiltin = false
exports.defs = configDefs
Object.defineProperty(exports, "defaults", { get: function () {
return configDefs.defaults
}, enumerable: true })
Object.defineProperty(exports, "types", { get: function () {
return configDefs.types
}, enumerable: true })
exports.validate = validate
var myUid = process.env.SUDO_UID !== undefined
? process.env.SUDO_UID : (process.getuid && process.getuid())
var myGid = process.env.SUDO_GID !== undefined
? process.env.SUDO_GID : (process.getgid && process.getgid())
var loading = false
var loadCbs = []
function load () {
var cli, builtin, cb
for (var i = 0; i < arguments.length; i++)
switch (typeof arguments[i]) {
case "string": builtin = arguments[i]; break
case "object": cli = arguments[i]; break
case "function": cb = arguments[i]; break
}
if (!cb)
cb = function () {}
if (exports.loaded) {
var ret = exports.loaded
if (cli) {
ret = new Conf(ret)
ret.unshift(cli)
}
return process.nextTick(cb.bind(null, null, ret))
}
// either a fresh object, or a clone of the passed in obj
if (!cli)
cli = {}
else
cli = Object.keys(cli).reduce(function (c, k) {
c[k] = cli[k]
return c
}, {})
loadCbs.push(cb)
if (loading)
return
loading = true
cb = once(function (er, conf) {
if (!er)
exports.loaded = conf
loadCbs.forEach(function (fn) {
fn(er, conf)
})
loadCbs.length = 0
})
// check for a builtin if provided.
exports.usingBuiltin = !!builtin
var rc = exports.rootConf = new Conf()
if (builtin)
rc.addFile(builtin, "builtin")
else
rc.add({}, "builtin")
rc.on("load", function () {
load_(builtin, rc, cli, cb)
})
rc.on("error", cb)
}
function load_(builtin, rc, cli, cb) {
var defaults = configDefs.defaults
var conf = new Conf(rc)
conf.usingBuiltin = !!builtin
conf.add(cli, "cli")
conf.addEnv()
conf.loadPrefix(function(er) {
if (er)
return cb(er)
// If you're doing `npm --userconfig=~/foo.npmrc` then you'd expect
// that ~/.npmrc won't override the stuff in ~/foo.npmrc (or, indeed
// be used at all).
//
// However, if the cwd is ~, then ~/.npmrc is the home for the project
// config, and will override the userconfig.
//
// If you're not setting the userconfig explicitly, then it will be loaded
// twice, which is harmless but excessive. If you *are* setting the
// userconfig explicitly then it will override your explicit intent, and
// that IS harmful and unexpected.
//
// Solution: Do not load project config file that is the same as either
// the default or resolved userconfig value. npm will log a "verbose"
// message about this when it happens, but it is a rare enough edge case
// that we don't have to be super concerned about it.
var projectConf = path.resolve(conf.localPrefix, ".npmrc")
var defaultUserConfig = rc.get("userconfig")
var resolvedUserConfig = conf.get("userconfig")
if (!conf.get("global") &&
projectConf !== defaultUserConfig &&
projectConf !== resolvedUserConfig) {
conf.addFile(projectConf, "project")
conf.once("load", afterPrefix)
} else {
conf.add({}, "project")
afterPrefix()
}
})
function afterPrefix() {
conf.addFile(conf.get("userconfig"), "user")
conf.once("error", cb)
conf.once("load", afterUser)
}
function afterUser () {
// globalconfig and globalignorefile defaults
// need to respond to the 'prefix' setting up to this point.
// Eg, `npm config get globalconfig --prefix ~/local` should
// return `~/local/etc/npmrc`
// annoying humans and their expectations!
if (conf.get("prefix")) {
var etc = path.resolve(conf.get("prefix"), "etc")
defaults.globalconfig = path.resolve(etc, "npmrc")
defaults.globalignorefile = path.resolve(etc, "npmignore")
}
conf.addFile(conf.get("globalconfig"), "global")
// move the builtin into the conf stack now.
conf.root = defaults
conf.add(rc.shift(), "builtin")
conf.once("load", function () {
conf.loadExtras(afterExtras)
})
}
function afterExtras(er) {
if (er)
return cb(er)
// warn about invalid bits.
validate(conf)
var cafile = conf.get("cafile")
if (cafile) {
return conf.loadCAFile(cafile, finalize)
}
finalize()
}
function finalize(er) {
if (er) {
return cb(er)
}
exports.loaded = conf
cb(er, conf)
}
}
// Basically the same as CC, but:
// 1. Always ini
// 2. Parses environment variable names in field values
// 3. Field values that start with ~/ are replaced with process.env.HOME
// 4. Can inherit from another Conf object, using it as the base.
inherits(Conf, CC)
function Conf (base) {
if (!(this instanceof Conf))
return new Conf(base)
CC.apply(this)
if (base)
if (base instanceof Conf)
this.root = base.list[0] || base.root
else
this.root = base
else
this.root = configDefs.defaults
}
Conf.prototype.loadPrefix = require("./load-prefix.js")
Conf.prototype.loadCAFile = require("./load-cafile.js")
Conf.prototype.loadUid = require("./load-uid.js")
Conf.prototype.setUser = require("./set-user.js")
Conf.prototype.findPrefix = require("./find-prefix.js")
Conf.prototype.getCredentialsByURI = require("./get-credentials-by-uri.js")
Conf.prototype.setCredentialsByURI = require("./set-credentials-by-uri.js")
Conf.prototype.loadExtras = function(cb) {
this.setUser(function(er) {
if (er)
return cb(er)
this.loadUid(function(er) {
if (er)
return cb(er)
// Without prefix, nothing will ever work
mkdirp(this.prefix, cb)
}.bind(this))
}.bind(this))
}
Conf.prototype.save = function (where, cb) {
var target = this.sources[where]
if (!target || !(target.path || target.source) || !target.data) {
if (where !== "builtin")
var er = new Error("bad save target: " + where)
if (cb) {
process.nextTick(cb.bind(null, er))
return this
}
return this.emit("error", er)
}
if (target.source) {
var pref = target.prefix || ""
Object.keys(target.data).forEach(function (k) {
target.source[pref + k] = target.data[k]
})
if (cb) process.nextTick(cb)
return this
}
var data = ini.stringify(target.data)
then = then.bind(this)
done = done.bind(this)
this._saving ++
var mode = where === "user" ? "0600" : "0666"
if (!data.trim()) {
fs.unlink(target.path, function () {
// ignore the possible error (e.g. the file doesn't exist)
done(null)
})
} else {
mkdirp(path.dirname(target.path), function (er) {
if (er)
return then(er)
fs.writeFile(target.path, data, "utf8", function (er) {
if (er)
return then(er)
if (where === "user" && myUid && myGid)
fs.chown(target.path, +myUid, +myGid, then)
else
then()
})
})
}
function then (er) {
if (er)
return done(er)
fs.chmod(target.path, mode, done)
}
function done (er) {
if (er) {
if (cb) return cb(er)
else return this.emit("error", er)
}
this._saving --
if (this._saving === 0) {
if (cb) cb()
this.emit("save")
}
}
return this
}
Conf.prototype.addFile = function (file, name) {
name = name || file
var marker = {__source__:name}
this.sources[name] = { path: file, type: "ini" }
this.push(marker)
this._await()
fs.readFile(file, "utf8", function (er, data) {
if (er) // just ignore missing files.
return this.add({}, marker)
this.addString(data, file, "ini", marker)
}.bind(this))
return this
}
// always ini files.
Conf.prototype.parse = function (content, file) {
return CC.prototype.parse.call(this, content, file, "ini")
}
Conf.prototype.add = function (data, marker) {
try {
Object.keys(data).forEach(function (k) {
data[k] = parseField(data[k], k)
})
}
catch (e) {
this.emit("error", e)
return this
}
return CC.prototype.add.call(this, data, marker)
}
Conf.prototype.addEnv = function (env) {
env = env || process.env
var conf = {}
Object.keys(env)
.filter(function (k) { return k.match(/^npm_config_/i) })
.forEach(function (k) {
if (!env[k])
return
// leave first char untouched, even if
// it is a "_" - convert all other to "-"
var p = k.toLowerCase()
.replace(/^npm_config_/, "")
.replace(/(?!^)_/g, "-")
conf[p] = env[k]
})
return CC.prototype.addEnv.call(this, "", conf, "env")
}
function parseField (f, k) {
if (typeof f !== "string" && !(f instanceof String))
return f
// type can be an array or single thing.
var typeList = [].concat(types[k])
var isPath = -1 !== typeList.indexOf(path)
var isBool = -1 !== typeList.indexOf(Boolean)
var isString = -1 !== typeList.indexOf(String)
var isUmask = -1 !== typeList.indexOf(Umask)
var isNumber = -1 !== typeList.indexOf(Number)
f = (""+f).trim()
if (f.match(/^".*"$/)) {
try {
f = JSON.parse(f)
}
catch (e) {
throw new Error("Failed parsing JSON config key " + k + ": " + f)
}
}
if (isBool && !isString && f === "")
return true
switch (f) {
case "true": return true
case "false": return false
case "null": return null
case "undefined": return undefined
}
f = envReplace(f)
if (isPath) {
var homePattern = process.platform === "win32" ? /^~(\/|\\)/ : /^~\//
if (f.match(homePattern) && process.env.HOME) {
f = path.resolve(process.env.HOME, f.substr(2))
}
f = path.resolve(f)
}
if (isUmask)
f = umask.fromString(f)
if (isNumber && !isNaN(f))
f = +f
return f
}
function envReplace (f) {
if (typeof f !== "string" || !f) return f
// replace any ${ENV} values with the appropriate environ.
var envExpr = /(\\*)\$\{([^}]+)\}/g
return f.replace(envExpr, function (orig, esc, name) {
esc = esc.length && esc.length % 2
if (esc)
return orig
if (undefined === process.env[name])
throw new Error("Failed to replace env in config: "+orig)
return process.env[name]
})
}
function validate (cl) {
// warn about invalid configs at every level.
cl.list.forEach(function (conf) {
nopt.clean(conf, configDefs.types)
})
nopt.clean(cl.root, configDefs.types)
}
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