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Commit 26c5949

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joshwiensjoshwiens
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refactor: Extract loader to lib
1 parent 9262804 commit 26c5949

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3 files changed

+115
-115
lines changed

3 files changed

+115
-115
lines changed

‎src/cjs.js‎

Lines changed: 0 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -1,2 +1 @@
11
module.exports = require('./index').default;
2-
module.exports = require('./loader').default;

‎src/lib/ExtractTextLoader.js‎

Lines changed: 114 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,114 @@
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import fs from 'fs';
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import loaderUtils from 'loader-utils';
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import NodeTemplatePlugin from 'webpack/lib/node/NodeTemplatePlugin';
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import NodeTargetPlugin from 'webpack/lib/node/NodeTargetPlugin';
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import LibraryTemplatePlugin from 'webpack/lib/LibraryTemplatePlugin';
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import SingleEntryPlugin from 'webpack/lib/SingleEntryPlugin';
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import LimitChunkCountPlugin from 'webpack/lib/optimize/LimitChunkCountPlugin';
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const NS = fs.realpathSync(__dirname);
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export default source => source;
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export function pitch(request) {
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const query = loaderUtils.getOptions(this) || {};
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let loaders = this.loaders.slice(this.loaderIndex + 1);
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this.addDependency(this.resourcePath);
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// We already in child compiler, return empty bundle
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if (this[NS] === undefined) { // eslint-disable-line no-undefined
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throw new Error(
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'"extract-text-webpack-plugin" loader is used without the corresponding plugin, ' +
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'refer to https://github.com/webpack/extract-text-webpack-plugin for the usage example',
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);
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} else if (this[NS] === false) {
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return '';
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} else if (this[NS](null, query)) {
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if (query.omit) {
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this.loaderIndex += +query.omit + 1;
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request = request.split('!').slice(+query.omit).join('!');
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loaders = loaders.slice(+query.omit);
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}
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let resultSource;
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if (query.remove) {
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resultSource = '// removed by extract-text-webpack-plugin';
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} else {
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resultSource = undefined; // eslint-disable-line no-undefined
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}
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const childFilename = 'extract-text-webpack-plugin-output-filename'; // eslint-disable-line no-path-concat
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const publicPath = typeof query.publicPath === 'string' ? query.publicPath : this._compilation.outputOptions.publicPath;
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const outputOptions = {
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filename: childFilename,
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publicPath,
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};
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const childCompiler = this._compilation.createChildCompiler(`extract-text-webpack-plugin ${NS} ${request}`, outputOptions);
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childCompiler.apply(new NodeTemplatePlugin(outputOptions));
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childCompiler.apply(new LibraryTemplatePlugin(null, 'commonjs2'));
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childCompiler.apply(new NodeTargetPlugin());
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childCompiler.apply(new SingleEntryPlugin(this.context, `!!${request}`));
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childCompiler.apply(new LimitChunkCountPlugin({ maxChunks: 1 }));
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// We set loaderContext[NS] = false to indicate we already in
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// a child compiler so we don't spawn another child compilers from there.
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childCompiler.plugin('this-compilation', (compilation) => {
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compilation.plugin('normal-module-loader', (loaderContext, module) => {
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loaderContext[NS] = false;
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if (module.request === request) {
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module.loaders = loaders.map((loader) => {
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return ({
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loader: loader.path,
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options: loader.options,
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});
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});
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}
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});
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});
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let source;
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childCompiler.plugin('after-compile', (compilation, callback) => {
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source = compilation.assets[childFilename] && compilation.assets[childFilename].source();
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// Remove all chunk assets
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compilation.chunks.forEach((chunk) => {
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chunk.files.forEach((file) => {
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delete compilation.assets[file];
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});
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});
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callback();
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});
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const callback = this.async();
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childCompiler.runAsChild((err, entries, compilation) => {
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if (err) return callback(err);
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if (compilation.errors.length > 0) {
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return callback(compilation.errors[0]);
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}
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compilation.fileDependencies.forEach((dep) => {
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this.addDependency(dep);
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}, this);
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compilation.contextDependencies.forEach((dep) => {
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this.addContextDependency(dep);
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}, this);
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if (!source) {
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return callback(new Error("Didn't get a result from child compiler"));
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}
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try {
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let text = this.exec(source, request);
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if (typeof text === 'string') { text = [[0, text]]; }
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text.forEach((item) => {
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const id = item[0];
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compilation.modules.forEach((module) => {
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if (module.id === id) { item[0] = module.identifier(); }
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});
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});
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this[NS](text, query);
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if (text.locals && typeof resultSource !== 'undefined') {
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resultSource += `\nmodule.exports = ${JSON.stringify(text.locals)};`;
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}
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} catch (e) {
109+
return callback(e);
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}
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if (resultSource) { callback(null, resultSource); } else { callback(); }
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});
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}
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}

‎src/loader.js‎

Lines changed: 1 addition & 114 deletions
Original file line numberDiff line numberDiff line change
@@ -1,114 +1 @@
1-
import fs from 'fs';
2-
import loaderUtils from 'loader-utils';
3-
import NodeTemplatePlugin from 'webpack/lib/node/NodeTemplatePlugin';
4-
import NodeTargetPlugin from 'webpack/lib/node/NodeTargetPlugin';
5-
import LibraryTemplatePlugin from 'webpack/lib/LibraryTemplatePlugin';
6-
import SingleEntryPlugin from 'webpack/lib/SingleEntryPlugin';
7-
import LimitChunkCountPlugin from 'webpack/lib/optimize/LimitChunkCountPlugin';
8-
9-
const NS = fs.realpathSync(__dirname);
10-
11-
export default source => source;
12-
13-
export function pitch(request) {
14-
const query = loaderUtils.getOptions(this) || {};
15-
let loaders = this.loaders.slice(this.loaderIndex + 1);
16-
this.addDependency(this.resourcePath);
17-
// We already in child compiler, return empty bundle
18-
if (this[NS] === undefined) { // eslint-disable-line no-undefined
19-
throw new Error(
20-
'"extract-text-webpack-plugin" loader is used without the corresponding plugin, ' +
21-
'refer to https://github.com/webpack/extract-text-webpack-plugin for the usage example',
22-
);
23-
} else if (this[NS] === false) {
24-
return '';
25-
} else if (this[NS](null, query)) {
26-
if (query.omit) {
27-
this.loaderIndex += +query.omit + 1;
28-
request = request.split('!').slice(+query.omit).join('!');
29-
loaders = loaders.slice(+query.omit);
30-
}
31-
let resultSource;
32-
if (query.remove) {
33-
resultSource = '// removed by extract-text-webpack-plugin';
34-
} else {
35-
resultSource = undefined; // eslint-disable-line no-undefined
36-
}
37-
38-
const childFilename = 'extract-text-webpack-plugin-output-filename'; // eslint-disable-line no-path-concat
39-
const publicPath = typeof query.publicPath === 'string' ? query.publicPath : this._compilation.outputOptions.publicPath;
40-
const outputOptions = {
41-
filename: childFilename,
42-
publicPath,
43-
};
44-
const childCompiler = this._compilation.createChildCompiler(`extract-text-webpack-plugin ${NS} ${request}`, outputOptions);
45-
childCompiler.apply(new NodeTemplatePlugin(outputOptions));
46-
childCompiler.apply(new LibraryTemplatePlugin(null, 'commonjs2'));
47-
childCompiler.apply(new NodeTargetPlugin());
48-
childCompiler.apply(new SingleEntryPlugin(this.context, `!!${request}`));
49-
childCompiler.apply(new LimitChunkCountPlugin({ maxChunks: 1 }));
50-
// We set loaderContext[NS] = false to indicate we already in
51-
// a child compiler so we don't spawn another child compilers from there.
52-
childCompiler.plugin('this-compilation', (compilation) => {
53-
compilation.plugin('normal-module-loader', (loaderContext, module) => {
54-
loaderContext[NS] = false;
55-
if (module.request === request) {
56-
module.loaders = loaders.map((loader) => {
57-
return ({
58-
loader: loader.path,
59-
options: loader.options,
60-
});
61-
});
62-
}
63-
});
64-
});
65-
66-
let source;
67-
childCompiler.plugin('after-compile', (compilation, callback) => {
68-
source = compilation.assets[childFilename] && compilation.assets[childFilename].source();
69-
70-
// Remove all chunk assets
71-
compilation.chunks.forEach((chunk) => {
72-
chunk.files.forEach((file) => {
73-
delete compilation.assets[file];
74-
});
75-
});
76-
77-
callback();
78-
});
79-
const callback = this.async();
80-
childCompiler.runAsChild((err, entries, compilation) => {
81-
if (err) return callback(err);
82-
83-
if (compilation.errors.length > 0) {
84-
return callback(compilation.errors[0]);
85-
}
86-
compilation.fileDependencies.forEach((dep) => {
87-
this.addDependency(dep);
88-
}, this);
89-
compilation.contextDependencies.forEach((dep) => {
90-
this.addContextDependency(dep);
91-
}, this);
92-
if (!source) {
93-
return callback(new Error("Didn't get a result from child compiler"));
94-
}
95-
try {
96-
let text = this.exec(source, request);
97-
if (typeof text === 'string') { text = [[0, text]]; }
98-
text.forEach((item) => {
99-
const id = item[0];
100-
compilation.modules.forEach((module) => {
101-
if (module.id === id) { item[0] = module.identifier(); }
102-
});
103-
});
104-
this[NS](text, query);
105-
if (text.locals && typeof resultSource !== 'undefined') {
106-
resultSource += `\nmodule.exports = ${JSON.stringify(text.locals)};`;
107-
}
108-
} catch (e) {
109-
return callback(e);
110-
}
111-
if (resultSource) { callback(null, resultSource); } else { callback(); }
112-
});
113-
}
114-
}
1+
module.exports = require('./lib/ExtractTextLoader').default;

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