晋太元中，武陵人捕鱼为业。缘溪行，忘路之远近。忽逢桃花林，夹岸数百步，中无杂树，芳草鲜美，落英缤纷。渔人甚异之，复前行，欲穷其林。 　　林尽水源，便得一山，山有小口，仿佛若有光。便舍船，从口入。初极狭，才通人。复行数十步，豁然开朗。土地平旷，屋舍俨然，有良田、美池、桑竹之属。阡陌交通，鸡犬相闻。其中往来种作，男女衣着，悉如外人。黄发垂髫，并怡然自乐。 　　见渔人，乃大惊，问所从来。具答之。便要还家，设酒杀鸡作食。村中闻有此人，咸来问讯。自云先世避秦时乱，率妻子邑人来此绝境，不复出焉，遂与外人间隔。问今是何世，乃不知有汉，无论魏晋。此人一一为具言所闻，皆叹惋。余人各复延至其家，皆出酒食。停数日，辞去。此中人语云：“不足为外人道也。”(间隔 一作：隔绝) 　　既出，得其船，便扶向路，处处志之。及郡下，诣太守，说如此。太守即遣人随其往，寻向所志，遂迷，不复得路。 　　南阳刘子骥，高尚士也，闻之，欣然规往。未果，寻病终。后遂无问津者。 sh-3ll

HOME


sh-3ll 1.0
DIR:/lib/node_modules/npm/lib/install/action/
Upload File :
Current File : //lib/node_modules/npm/lib/install/action/remove.js
'use strict'
var path = require('path')
var fs = require('graceful-fs')
var rimraf = require('rimraf')
var asyncMap = require('slide').asyncMap
var mkdirp = require('gentle-fs').mkdir
var npm = require('../../npm.js')
var andIgnoreErrors = require('../and-ignore-errors.js')
var move = require('../../utils/move.js')
var isInside = require('path-is-inside')
var vacuum = require('fs-vacuum')

// This is weird because we want to remove the module but not it's node_modules folder
// allowing for this allows us to not worry about the order of operations
module.exports = function (staging, pkg, log, next) {
  log.silly('remove', pkg.path)
  if (pkg.target) {
    removeLink(pkg, next)
  } else {
    removeDir(pkg, log, next)
  }
}

function removeLink (pkg, next) {
  var base = isInside(pkg.path, npm.prefix) ? npm.prefix : pkg.path
  rimraf(pkg.path, (err) => {
    if (err) return next(err)
    vacuum(pkg.path, {base: base}, next)
  })
}

function removeDir (pkg, log, next) {
  var modpath = path.join(path.dirname(pkg.path), '.' + path.basename(pkg.path) + '.MODULES')

  move(path.join(pkg.path, 'node_modules'), modpath).then(unbuildPackage, unbuildPackage)

  function unbuildPackage (moveEr) {
    rimraf(pkg.path, moveEr ? andRemoveEmptyParents(pkg.path) : moveModulesBack)
  }

  function andRemoveEmptyParents (path) {
    return function (er) {
      if (er) return next(er)
      removeEmptyParents(pkg.path)
    }
  }

  function moveModulesBack () {
    fs.readdir(modpath, makeTarget)
  }

  function makeTarget (readdirEr, files) {
    if (readdirEr) return cleanup()
    if (!files.length) return cleanup()
    mkdirp(path.join(pkg.path, 'node_modules'), function (mkdirEr) { moveModules(mkdirEr, files) })
  }

  function moveModules (mkdirEr, files) {
    if (mkdirEr) return next(mkdirEr)
    asyncMap(files, function (file, done) {
      var from = path.join(modpath, file)
      var to = path.join(pkg.path, 'node_modules', file)
      // we ignore errors here, because they can legitimately happen, for instance,
      // bundled modules will be in both node_modules folders
      move(from, to).then(andIgnoreErrors(done), andIgnoreErrors(done))
    }, cleanup)
  }

  function cleanup () {
    rimraf(modpath, afterCleanup)
  }

  function afterCleanup (rimrafEr) {
    if (rimrafEr) log.warn('remove', rimrafEr)
    removeEmptyParents(path.resolve(pkg.path, '..'))
  }

  function removeEmptyParents (pkgdir) {
    fs.rmdir(pkgdir, function (er) {
      // FIXME: Make sure windows does what we want here
      if (er && er.code !== 'ENOENT') return next()
      removeEmptyParents(path.resolve(pkgdir, '..'))
    })
  }
}