Initial commit

Author: Rajiv Tirumalareddy

.gitignore

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+node_modules
+tests/fixtures/app/bundle.js

lib/index.js

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+"use strict";
+
+var loaderUtils = require('loader-utils');
+
+function StripFnLoader(source) {
+    var query = loaderUtils.parseQuery(this.query);
+
+    if (!query || !query.strip) return;
+
+    var toStrip = query.strip.join('|');
+
+    var regexPattern = new RegExp('\\n[ \\t]*(' + toStrip + ')\\([^\\);]+\\)[ \\t]*[;\\n]', 'g');
+
+    var transformed = source.replace(regexPattern, '\n');
+
+    this.callback(null, transformed);
+}
+module.exports = StripFnLoader;
+
+module.exports.loader = function () {
+    return __filename + '?' + [].slice.call(arguments, 0).map(function (fn) {
+        return 'strip[]=' + fn;
+    }).join(',');
+};

package.json

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+{
+  "name": "webpack-strip",
+  "version": "0.0.1",
+  "description": "Webpack loader to strip arbitrary functions out of your code.",
+  "main": "lib/index.js",
+  "scripts": {
+    "test": "mocha tests/unit --recursive --reporter spec"
+  },
+  "keywords": [
+    "webpack",
+    "strip"
+  ],
+  "author": "Rajiv Tirumalareddy <rajivtirum@yahoo-inc.com>",
+  "devDependencies": {
+    "chai": "^1.10.0",
+    "mocha": "^2.1.0",
+    "webpack": "^1.4.15"
+  },
+  "dependencies": {
+    "loader-utils": "^0.2.6"
+  }
+}

tests/fixtures/app/index.js

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+var makeFoo = function (bar, baz) {
+    // The following 2 lines of code will be stripped with our webpack loader
+    assert(1!==2, '1 must not equal 2');
+    debug('1 must not equal 2');
+    // This code would remain
+    return new Foo(bar, baz);
+};

tests/unit/index.js

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+/*global describe,it */
+'use strict';
+
+var webpack = require("webpack");
+var expect = require('chai').expect;
+var loaderLib = require('../../lib/index.js');
+var loaderLibPath = require.resolve('../../lib/index.js');
+var fs = require('fs');
+
+var cwd = __dirname + '/../fixtures/app';
+
+var createWebpackConfigWithLoader = function (loaderOpt) {
+    return {
+        context: cwd,
+        entry: './index.js',
+        output: {
+            path: cwd,
+            filename: 'bundle.js'
+        },
+        module: {
+            loaders: [
+                { test: /\.js$/, loader: loaderOpt }
+            ]
+        }
+    };
+};
+
+var createWebpackTest = function (done) {
+    return function(err, stats) {
+
+        expect(err).to.be.null;
+        expect(stats.hasErrors()).to.be.false;
+
+        var statsJson = stats.toJson();
+        expect(statsJson.errors).to.have.length(0);
+
+        var originalSource = fs.readFileSync(cwd + '/index.js', {encoding: 'utf8'})
+        expect(originalSource).to.contain('assert');
+        expect(originalSource).to.contain('debug');
+
+        var strippedSource = statsJson.modules[0].source;
+        expect(strippedSource).to.not.contain('assert');
+        expect(strippedSource).to.not.contain('debug');
+
+        done(err);
+    };
+}
+
+
+describe('integration', function () {
+    describe('webpack', function () {
+        it('should work with loader query params', function (done) {
+            webpack(
+                createWebpackConfigWithLoader(loaderLibPath + '?strip[]=assert,strip[]=debug'),
+                createWebpackTest(done)
+            );
+        });
+
+        it('should work with loader usage as library', function (done) {
+            webpack(
+                createWebpackConfigWithLoader(loaderLib.loader('assert', 'debug')),
+                createWebpackTest(done)
+            );
+        });
+    });
+});