read-shrinkwrap.js
63198c668de0develop

read-shrinkwrap.js
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			'use strict'
			var path = require('path')
			var fs = require('graceful-fs')
			var iferr = require('iferr')
			var inflateShrinkwrap = require('./inflate-shrinkwrap.js')
			var parseJSON = require('../utils/parse-json.js')

			var readShrinkwrap = module.exports = function (child, next) {
			fs.readFile(path.join(child.path, 'npm-shrinkwrap.json'), function (er, data) {
			if (er) {
			child.package._shrinkwrap = null
			return next()
			}
			try {
			child.package._shrinkwrap = parseJSON(data)
			} catch (ex) {
			child.package._shrinkwrap = null
			return next(ex)
			}
			return next()
			})
			}

			module.exports.andInflate = function (child, next) {
			readShrinkwrap(child, iferr(next, function () {
			if (child.package._shrinkwrap) {
			return inflateShrinkwrap(child, child.package._shrinkwrap.dependencies \|\| {}, next)
			} else {
			return next()
			}
			}))
			}