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added async chunk loading for node.js build

This commit is contained in:
Tobias Koppers 2013-12-15 23:08:11 +01:00
parent d614f95898
commit b0f5575c57
3 changed files with 63 additions and 22 deletions
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3
lib/WebpackOptionsApply.js
View File

@ -78,10 +78,11 @@ WebpackOptionsApply.prototype.process = function(options, compiler) {
);
break;
case "node":
case "async-node":
var NodeTemplatePlugin = require("./node/NodeTemplatePlugin");
var NodeTargetPlugin = require("./node/NodeTargetPlugin");
compiler.apply(
new NodeTemplatePlugin(options.output),
new NodeTemplatePlugin(options.output, options.target === "async-node"),
new FunctionModulePlugin(options.context, options.output),
new NodeTargetPlugin()
);

77
lib/node/NodeMainTemplate.js
View File

@ -5,8 +5,9 @@
var MainTemplate = require("../MainTemplate");
var Template = require("../Template");
function NodeMainTemplate(outputOptions) {
function NodeMainTemplate(outputOptions, asyncChunkLoading) {
MainTemplate.call(this, outputOptions);
this.asyncChunkLoading = asyncChunkLoading;
}
module.exports = NodeMainTemplate;
@ -35,25 +36,63 @@ NodeMainTemplate.prototype.renderLocalVars = function(hash, chunk) {
NodeMainTemplate.prototype.renderRequireEnsure = function(hash, chunk) {
var filename = this.outputOptions.filename || "bundle.js";
var chunkFilename = this.outputOptions.chunkFilename || "[id]." + filename;
return [
"// \"1\" is the signal for \"already loaded\"",
"if(!installedChunks[chunkId]) {",
this.indent([
"var chunk = require(" +
JSON.stringify("./" + chunkFilename
.replace(Template.REGEXP_HASH, hash)
.replace(Template.REGEXP_NAME, ""))
.replace(Template.REGEXP_ID, "\" + chunkId + \"") + ");",
"var moreModules = chunk.modules, chunkIds = chunk.ids;",
"for(var moduleId in moreModules) {",
this.indent(this.renderAddModule(hash, chunk, "moduleId", "moreModules[moduleId]")),
"}",
"for(var i = 0; i < chunkIds.length; i++)",
this.indent("installedChunks[chunkIds[i]] = 1;"),
]),
"}",
"callback.call(null, " + this.requireFn + ");",
var insertMoreModules = [
"var moreModules = chunk.modules, chunkIds = chunk.ids;",
"for(var moduleId in moreModules) {",
this.indent(this.renderAddModule(hash, chunk, "moduleId", "moreModules[moduleId]")),
"}"
];
if(this.asyncChunkLoading) {
return [
"if(installedChunks[chunkId] === 1) callback.call(null, " + this.requireFn + ");",
"else if(!installedChunks[chunkId]) {",
this.indent([
"installedChunks[chunkId] = [callback];",
"var filename = __dirname + " + JSON.stringify("/" + chunkFilename
.replace(Template.REGEXP_HASH, hash)
.replace(Template.REGEXP_NAME, ""))
.replace(Template.REGEXP_ID, "\" + chunkId + \"") + ";",
"require('fs').readFile(filename, 'utf-8', function(err, content) {",
this.indent([
"if(err) { if(" + this.requireFn + ".onerror) return " + this.requireFn + ".onerror(err); else throw err; }",
"var chunk = {};",
"require('vm').runInThisContext('(function(exports) {' + content + '\\n})', filename)(chunk);",
].concat(insertMoreModules).concat([
"var callbacks = [];",
"for(var i = 0; i < chunkIds.length; i++) {",
this.indent([
"if(Array.isArray(installedChunks[chunkIds[i]]))",
this.indent([
"callbacks = callbacks.concat(installedChunks[chunkIds[i]]);"
]),
"installedChunks[chunkIds[i]] = 1;"
]),
"}",
"for(i = 0; i < callbacks.length; i++)",
this.indent("callbacks[i].call(null, " + this.requireFn + ");")
])),
"});"
]),
"} else installedChunks[chunkId].push(callback);",
];
} else {
return [
"// \"1\" is the signal for \"already loaded\"",
"if(!installedChunks[chunkId]) {",
this.indent([
"var chunk = require(" +
JSON.stringify("./" + chunkFilename
.replace(Template.REGEXP_HASH, hash)
.replace(Template.REGEXP_NAME, ""))
.replace(Template.REGEXP_ID, "\" + chunkId + \"") + ");"
].concat(insertMoreModules).concat([
"for(var i = 0; i < chunkIds.length; i++)",
this.indent("installedChunks[chunkIds[i]] = 1;"),
])),
"}",
"callback.call(null, " + this.requireFn + ");",
];
}
};
NodeMainTemplate.prototype.renderRequireExtensions = function(hash, chunk) {

5
lib/node/NodeTemplatePlugin.js
View File

@ -5,13 +5,14 @@
var NodeMainTemplate = require("./NodeMainTemplate");
var NodeChunkTemplate = require("./NodeChunkTemplate");
function NodeTemplatePlugin(options) {
function NodeTemplatePlugin(options, asyncChunkLoading) {
this.options = options;
this.asyncChunkLoading = asyncChunkLoading;
}
module.exports = NodeTemplatePlugin;
NodeTemplatePlugin.prototype.apply = function(compiler) {
var options = this.options;
compiler.mainTemplate = new NodeMainTemplate(options);
compiler.mainTemplate = new NodeMainTemplate(options, this.asyncChunkLoading);
compiler.chunkTemplate = new NodeChunkTemplate(options);
compiler.plugin("compilation", function(compilation) {
compilation.plugin("normal-module-loader", function(loaderContext) {