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module.exports = loadPrefix
var findPrefix = require('./find-prefix.js')
var path = require('path')
function loadPrefix (cb) {
var cli = this.list[0]
Object.defineProperty(this, 'prefix',
{ set: function (prefix) {
var g = this.get('global')
this[g ? 'globalPrefix' : 'localPrefix'] = prefix
}.bind(this),
get: function () {
var g = this.get('global')
return g ? this.globalPrefix : this.localPrefix
}.bind(this),
enumerable: true
})
Object.defineProperty(this, 'globalPrefix',
{ set: function (prefix) {
this.set('prefix', prefix)
}.bind(this),
get: function () {
return path.resolve(this.get('prefix'))
}.bind(this),
enumerable: true
})
var p
Object.defineProperty(this, 'localPrefix',
{ set: function (prefix) { p = prefix },
get: function () { return p },
enumerable: true })
// try to guess at a good node_modules location.
// If we are *explicitly* given a prefix on the cli, then
// always use that. otherwise, infer local prefix from cwd.
if (Object.prototype.hasOwnProperty.call(cli, 'prefix')) {
p = path.resolve(cli.prefix)
process.nextTick(cb)
} else {
findPrefix(process.cwd(), function (er, found) {
p = found
cb(er)
})
}
}
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