File size: 2,394 Bytes
ae4627d | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 | var fs = require('fs')
var Asset = require('./asset')
var File = require('./file')
var Type = require('lighter-type')
var path = require('path')
/**
* A Pack runs webpack and outputs the resulting file content.
*/
module.exports = File.extend(function Pack (path, stat, load) {
var self = this
var webpack = require('webpack')
Asset.init.apply(this, arguments)
this.wait()
dive(path, function (paths) {
var fs = new BypassFs()
var fn = function (ignore, stats) {
var name = stats.toJson().assets[0].name
var type = name.replace(/^.*\./, '')
if (self.type !== type) {
self.type = type
self.path += '.' + type
self.location += '.' + type
}
self.handleContent(fs.content)
self.unwait()
}
var compiler = webpack({entry: paths}, fn)
compiler.outputFileSystem = fs
// Check for changes once every 200ms.
// TODO: Handle entry point changes in packed directories.
compiler.watch(200, function (err, stats) {
// Wait for compilation to return assets, and call the handler.
self.wait()
fn(err, stats)
// Replay anything that depends on changes in this asset's load.
load.then(function () {
load.replay(self.location)
})
})
})
})
/**
* Bypass the file system with a fake one of our own.
*/
var BypassFs = Type.extend({
// Remember the content, and call back without an error.
writeFile: function (path, content, fn) {
this.content = content
fn()
},
// Call back without an error.
mkdirp: function (path, fn) {
fn()
},
// Join a directory and filename, and return a path.
join: function (dir, file) {
return path.join(dir, file)
}
})
/**
* Dive down a directory.
*/
function dive (path, fn) {
var list = []
var wait = 0
got(path)
function got (path) {
wait++
fs.lstat(path, function (error, stat) {
if (!error) {
if (stat.isFile()) {
list.push(path)
}
if (stat.isDirectory()) {
wait++
fs.readdir(path, function (error, files) {
if (!error) {
files.forEach(function (file) {
got(path + '/' + file)
})
}
if (!--wait) done()
})
}
}
if (!--wait) done()
})
}
function done () {
list.sort()
fn(list)
}
}
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