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, '..'))
})
}
}
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