/usr/lib/node_modules/npm/lib
Edit: /usr/lib/node_modules/npm/lib/prune.js (2281B)
// 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() }