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'use strict'
// remove a package.
module.exports = uninstall
module.exports.Uninstaller = Uninstaller
var util = require('util')
var path = require('path')
var validate = require('aproba')
var chain = require('slide').chain
var readJson = require('read-package-json')
var npm = require('./npm.js')
var Installer = require('./install.js').Installer
var getSaveType = require('./install/save.js').getSaveType
var removeDeps = require('./install/deps.js').removeDeps
var loadExtraneous = require('./install/deps.js').loadExtraneous
var log = require('npmlog')
var usage = require('./utils/usage')
uninstall.usage = usage(
'uninstall',
'npm uninstall [<@scope>/]<pkg>[@<version>]... [--save|--save-dev|--save-optional]'
)
uninstall.completion = require('./utils/completion/installed-shallow.js')
function uninstall (args, cb) {
validate('AF', arguments)
// the /path/to/node_modules/..
var dryrun = !!npm.config.get('dry-run')
if (args.length === 1 && args[0] === '.') args = []
args = args.filter(function (a) {
return path.resolve(a) !== where
})
var where = npm.config.get('global') || !args.length
? path.resolve(npm.globalDir, '..')
: npm.prefix
if (args.length) {
new Uninstaller(where, dryrun, args).run(cb)
} else {
// remove this package from the global space, if it's installed there
readJson(path.resolve(npm.localPrefix, 'package.json'), function (er, pkg) {
if (er && er.code !== 'ENOENT' && er.code !== 'ENOTDIR') return cb(er)
if (er) return cb(uninstall.usage)
new Uninstaller(where, dryrun, [pkg.name]).run(cb)
})
}
}
function Uninstaller (where, dryrun, args) {
validate('SBA', arguments)
Installer.call(this, where, dryrun, args)
}
util.inherits(Uninstaller, Installer)
Uninstaller.prototype.loadArgMetadata = function (next) {
this.args = this.args.map(function (arg) { return {name: arg} })
next()
}
Uninstaller.prototype.loadAllDepsIntoIdealTree = function (cb) {
validate('F', arguments)
log.silly('uninstall', 'loadAllDepsIntoIdealtree')
var saveDeps = getSaveType(this.args)
var cg = this.progress.loadAllDepsIntoIdealTree
var steps = []
steps.push(
[removeDeps, this.args, this.idealTree, saveDeps, cg.newGroup('removeDeps')],
[loadExtraneous, this.idealTree, cg.newGroup('loadExtraneous')])
chain(steps, cb)
}
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