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'use strict'
var fs = require('graceful-fs')
var path = require('path')
var chain = require('slide').chain
var iferr = require('iferr')
var rimraf = require('rimraf')
var mkdirp = require('mkdirp')
var npm = require('../../npm.js')
var rmStuff = require('../../unbuild.js').rmStuff
var lifecycle = require('../../utils/lifecycle.js')
var updatePackageJson = require('../update-package-json')
var log = require('npmlog')
module.exports = function (top, buildpath, pkg, log, next) {
log.silly('move', pkg.fromPath, pkg.path)
chain([
[lifecycle, pkg.package, 'preuninstall', pkg.fromPath, false, true],
[lifecycle, pkg.package, 'uninstall', pkg.fromPath, false, true],
[rmStuff, pkg.package, pkg.fromPath],
[lifecycle, pkg.package, 'postuninstall', pkg.fromPath, false, true],
[moveModuleOnly, pkg.fromPath, pkg.path],
[lifecycle, pkg.package, 'preinstall', pkg.path, false, true],
[removeEmptyParents, path.resolve(pkg.fromPath, '..')],
[updatePackageJson, pkg, pkg.path]
], next)
}
function noerrors () {
var args = Array.prototype.slice.call(arguments)
var todo = args.shift()
var cb = args.pop()
todo.apply(null, function (er) {
if (er) {
log.warn('move', er)
}
cb.apply(null, a)
})
}
module.exports.rollback = function (buildpath, pkg, next) {
chian([
[noerrors, mkdirp, path.resolve(pkg.fromPath, '..')],
[noerrors, lifecycle, pkg.package, 'preuninstall', pkg.path, false, true],
[noerrors, lifecycle, pkg.package, 'uninstall', pkg.path, false, true],
[noerrors, rmStuff, pkg.package, pkg.path],
[noerrors, lifecycle, pkg.package, 'postuninstall', pkg.path, false, true],
[noerrors, moveModuleOnly, pkg.path, pkg.fromPath],
[noerrors, lifecycle, pkg.package, 'preinstall', pkg.fromPath, false, true],
[noerrors, removeEmptyParents, path.resolve(pkg.path, '..')],
[noerrors, updatePackageJson, pkg, pkg.fromPath],
], next)
}
function removeEmptyParents (pkgdir, 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, '..'), next)
})
}
function moveModuleOnly (from, to, done) {
var from_modules = path.join(from, 'node_modules')
var temp_modules = from + '.node_modules'
rimraf(to, iferr(done, makeDestination))
function makeDestination () {
mkdirp(path.resolve(to, '..'), iferr(done, moveNodeModules))
}
function moveNodeModules () {
fs.rename(from_modules, temp_modules, function (er) {
doMove(er ? done : moveNodeModulesBack)
})
}
function doMove (next) {
fs.rename(from, to, iferr(done, next))
}
function moveNodeModulesBack () {
mkdirp(from, iferr(done, function () {
fs.rename(temp_modules, from_modules, done)
}))
}
}
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