text: 'use strict'
  // remove a package.
  
  module.exports = uninstall
  
  const path = require('path')
  const validate = require('aproba')
  const readJson = require('read-package-json')
  const iferr = require('iferr')
  const npm = require('./npm.js')
  const Installer = require('./install.js').Installer
  const getSaveType = require('./install/save.js').getSaveType
  const removeDeps = require('./install/deps.js').removeDeps
  const log = require('npmlog')
  const usage = require('./utils/usage')
  
  uninstall.usage = usage(
    'uninstall',
    'npm uninstall [<@scope>/]<pkg>[@<version>]... [--save-prod|--save-dev|--save-optional] [--no-save]'
  )
  
  uninstall.completion = require('./utils/completion/installed-shallow.js')
  
  function uninstall (args, cb) {
    validate('AF', arguments)
    // the /path/to/node_modules/..
    const dryrun = !!npm.config.get('dry-run')
  
    if (args.length === 1 && args[0] === '.') args = []
  
    const where = npm.config.get('global') || !args.length
              ? path.resolve(npm.globalDir, '..')
              : npm.prefix
  
    args = args.filter(function (a) {
      return path.resolve(a) !== where
    })
  
    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)
      })
    }
  }
  
  class Uninstaller extends Installer {
    constructor (where, dryrun, args) {
      super(where, dryrun, args)
      this.remove = []
    }
  
    loadArgMetadata (next) {
      this.args = this.args.map(function (arg) { return {name: arg} })
      next()
    }
  
    loadAllDepsIntoIdealTree (cb) {
      validate('F', arguments)
      this.remove = this.args
      this.args = []
      log.silly('uninstall', 'loadAllDepsIntoIdealTree')
      const saveDeps = getSaveType()
  
      super.loadAllDepsIntoIdealTree(iferr(cb, () => {
        removeDeps(this.remove, this.idealTree, saveDeps, cb)
      }))
    }
  
    // no top level lifecycles on rm
    runPreinstallTopLevelLifecycles (cb) { cb() }
    runPostinstallTopLevelLifecycles (cb) { cb() }
  }
  
  module.exports.Uninstaller = Uninstaller
  