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module.exports = loadPrefix
var findPrefix = require("./find-prefix.js")
var mkdirp = require("mkdirp")
var path = require('path')
function loadPrefix (cb) {
var cli = this.list[0]
// try to guess at a good node_modules location.
var p
, gp
if (!Object.prototype.hasOwnProperty.call(cli, "prefix")) {
p = process.cwd()
} else {
p = this.get("prefix")
}
gp = this.get("prefix")
findPrefix(p, function (er, p) {
Object.defineProperty(this, "localPrefix",
{ get : function () { return p }
, set : function (r) { return p = r }
, enumerable : true
})
// the prefix MUST exist, or else nothing works.
if (!this.get("global")) {
mkdirp(p, next.bind(this))
} else {
next.bind(this)(er)
}
}.bind(this))
gp = path.resolve(gp)
Object.defineProperty(this, "globalPrefix",
{ get : function () { return gp }
, set : function (r) { return gp = r }
, enumerable : true
})
// the prefix MUST exist, or else nothing works.
mkdirp(gp, next.bind(this))
var i = 2
var errState = null
function next (er) {
if (errState) return
if (er) return cb(errState = er)
if (--i === 0) return cb()
}
}
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