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opt / alt / alt-nodejs6 / root / usr / lib / node_modules / npm / lib / install / action /

?? ..
?? build.js(425 B)
?? extract.js(2.79 KB)
?? fetch.js(882 B)
?? finalize.js(2.74 KB)
?? global-install.js(606 B)
?? global-link.js(242 B)
?? install.js(298 B)
?? move.js(3.16 KB)
?? postinstall.js(306 B)
?? preinstall.js(305 B)
?? prepublish.js(305 B)
?? remove.js(2.42 KB)
?? test.js(293 B)
?? update-linked.js(356 B)

Editing: finalize.js

'use strict'
var path = require('path')
var rimraf = require('rimraf')
var fs = require('graceful-fs')
var mkdirp = require('mkdirp')
var asyncMap = require('slide').asyncMap
var rename = require('../../utils/rename.js')

module.exports = function (top, buildpath, pkg, log, next) {
  log.silly('finalize', pkg.path)

var delpath = path.join(path.dirname(pkg.path), '.' + path.basename(pkg.path) + '.DELETE')

mkdirp(path.resolve(pkg.path, '..'), whenParentExists)

function whenParentExists (mkdirEr) {
    if (mkdirEr) return next(mkdirEr)
    // We stat first, because we can't rely on ENOTEMPTY from Windows.
    // Windows, by contrast, gives the generic EPERM of a folder already exists.
    fs.lstat(pkg.path, destStatted)
  }

function destStatted (doesNotExist) {
    if (doesNotExist) {
      rename(buildpath, pkg.path, whenMoved)
    } else {
      moveAway()
    }
  }

function whenMoved (renameEr) {
    if (!renameEr) return next()
    if (renameEr.code !== 'ENOTEMPTY') return next(renameEr)
    moveAway()
  }

function moveAway () {
    rename(pkg.path, delpath, whenOldMovedAway)
  }

function whenOldMovedAway (renameEr) {
    if (renameEr) return next(renameEr)
    rename(buildpath, pkg.path, whenConflictMoved)
  }

function whenConflictMoved (renameEr) {
    // if we got an error we'll try to put back the original module back,
    // succeed or fail though we want the original error that caused this
    if (renameEr) return rename(delpath, pkg.path, function () { next(renameEr) })
    fs.readdir(path.join(delpath, 'node_modules'), 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(delpath, 'node_modules', file)
      var to = path.join(pkg.path, 'node_modules', file)
      rename(from, to, done)
    }, cleanup)
  }

function cleanup (moveEr) {
    if (moveEr) return next(moveEr)
    rimraf(delpath, afterCleanup)
  }

function afterCleanup (rimrafEr) {
    if (rimrafEr) log.warn('finalize', rimrafEr)
    next()
  }
}

module.exports.rollback = function (buildpath, pkg, next) {
  var top = path.resolve(buildpath, '..')
  rimraf(pkg.path, function () {
    removeEmptyParents(pkg.path)
  })
  function removeEmptyParents (pkgdir) {
    if (path.relative(top, pkgdir)[0] === '.') return next()
    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, '..'))
    })
  }
}

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Editing: finalize.js

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