// prune extraneous packages. module.exports = prune module.exports.Pruner = Pruner prune.usage = 'npm prune [[<@scope>/]...] [--production]' var npm = require('./npm.js') var log = require('npmlog') var util = require('util') var moduleName = require('./utils/module-name.js') var Installer = require('./install.js').Installer var isExtraneous = require('./install/is-extraneous.js') var isOnlyDev = require('./install/is-only-dev.js') var removeDeps = require('./install/deps.js').removeDeps var loadExtraneous = require('./install/deps.js').loadExtraneous var chain = require('slide').chain var computeMetadata = require('./install/deps.js').computeMetadata prune.completion = require('./utils/completion/installed-deep.js') function prune (args, cb) { var dryrun = !!npm.config.get('dry-run') new Pruner('.', dryrun, args).run(cb) } function Pruner (where, dryrun, args) { Installer.call(this, where, dryrun, args) this.autoPrune = true } util.inherits(Pruner, Installer) Pruner.prototype.loadAllDepsIntoIdealTree = function (cb) { log.silly('uninstall', 'loadAllDepsIntoIdealTree') var cg = this.progress['loadIdealTree:loadAllDepsIntoIdealTree'] var steps = [] computeMetadata(this.idealTree) var self = this var excludeDev = npm.config.get('production') || /^prod(uction)?$/.test(npm.config.get('only')) function shouldPrune (child) { if (isExtraneous(child)) return true if (!excludeDev) return false return isOnlyDev(child) } function getModuleName (child) { // wrapping because moduleName doesn't like extra args and we're called // from map. return moduleName(child) } function matchesArg (name) { return self.args.length === 0 || self.args.indexOf(name) !== -1 } function nameObj (name) { return {name: name} } var toPrune = this.idealTree.children.filter(shouldPrune).map(getModuleName).filter(matchesArg).map(nameObj) steps.push( [removeDeps, toPrune, this.idealTree, null], [loadExtraneous, this.idealTree, cg.newGroup('loadExtraneous')]) chain(steps, cb) } Pruner.prototype.runPreinstallTopLevelLifecycles = function (cb) { cb() } Pruner.prototype.runPostinstallTopLevelLifecycles = function (cb) { cb() } Pruner.prototype.saveToDependencies = function (cb) { cb() }