Skip to content
This repository was archived by the owner on May 29, 2019. It is now read-only.

Commit 26c5949

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

File tree

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 @@
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+
}

‎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;

0 commit comments

Comments
 (0)