i2b2-merge-to…

decompose-actions.js
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			'use strict'
			var validate = require('aproba')
			var asyncMap = require('slide').asyncMap
			var npm = require('../npm.js')

			module.exports = function (differences, decomposed, next) {
			validate('AAF', arguments)
			asyncMap(differences, function (action, done) {
			var cmd = action[0]
			var pkg = action[1]
			switch (cmd) {
			case 'add':
			case 'update':
			addSteps(decomposed, pkg, done)
			break
			case 'move':
			moveSteps(decomposed, pkg, done)
			break
			case 'remove':
			case 'update-linked':
			default:
			defaultSteps(decomposed, cmd, pkg, done)
			}
			}, next)
			}

			function addSteps (decomposed, pkg, done) {
			if (!pkg.fromBundle) {
			decomposed.push(['fetch', pkg])
			decomposed.push(['extract', pkg])
			decomposed.push(['test', pkg])
			}
			if (!pkg.fromBundle \|\| npm.config.get('rebuild-bundle')) {
			decomposed.push(['preinstall', pkg])
			decomposed.push(['build', pkg])
			decomposed.push(['install', pkg])
			decomposed.push(['postinstall', pkg])
			}
			decomposed.push(['finalize', pkg])
			done()
			}

			function moveSteps (decomposed, pkg, done) {
			decomposed.push(['move', pkg])
			decomposed.push(['build', pkg])
			decomposed.push(['install', pkg])
			decomposed.push(['postinstall', pkg])
			decomposed.push(['test', pkg])
			done()
			}

			function defaultSteps (decomposed, cmd, pkg, done) {
			decomposed.push([cmd, pkg])
			done()
			}