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shrine-medco/apps/steward-app/node/node_modules/npm/lib/install/action/remove.js
3f782d449aa6release/1.22.0

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remove.js
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'use strict'
var path = require('path')
var fs = require('graceful-fs')
var rimraf = require('rimraf')
var asyncMap = require('slide').asyncMap
var mkdirp = require('mkdirp')
var npm = require('../../npm.js')
var andIgnoreErrors = require('../and-ignore-errors.js')
var rename = require('../../utils/rename.js')
// 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 (top, buildpath, pkg, log, next) {
log.silly('remove', pkg.path)
if (pkg.target) {
removeLink(pkg, next)
} else {
removeDir(pkg, log, next)
}
}
function removeLink (pkg, next) {
npm.commands.unbuild(pkg.path, true, next)
}
function removeDir (pkg, log, next) {
var modpath = path.join(path.dirname(pkg.path), '.' + path.basename(pkg.path) + '.MODULES')
rename(path.join(pkg.path, 'node_modules'), modpath, unbuildPackage)
function unbuildPackage (renameEr) {
npm.commands.unbuild(pkg.path, true, function () {
rimraf(pkg.path, renameEr ? 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
rename(from, to, 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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