#Editable sources plugin for Webpack

Overview

editable-sources-webpack-plugin allows to modify source code of any webpack bundle during bundling. For example if some npm package doesn't have webpack plugin, you can use this package inside editable-sources-webpack-plugin callback function.

Installation

Install the package with NPM and add it to your devDependencies:

npm install --save-dev editable-sources-webpack-plugin

Usage:

new EditableSourcesWebpackPlugin(matchRegExp, callback);

const webpack = require('webpack');
const EditableSourcesWebpackPlugin = require('editable-sources-webpack-plugin');
const NpmPackageWithoutWebpackSupport = require('some-npm-package');

module.exports = {
    devtool: 'source-map',
    entry: {
        app: './src/app.ts'
    },
    output: {
        filename: '[name].js',
    },
    plugins: [
        new EditableSourcesWebpackPlugin(/\.js$/, function (sourceCode) {
            sourceCode = sourceCode
                .replace(/\.catch\(/g, `['catch'](`)
                .replace(/\.throw\(/g, `['throw'](`);
            
            return NpmPackageWithoutWebpackSupport(sourceCode);
        })
    ],
    resolve: {
        extensions: ['.ts', '.js']
    }
};

Test

1. git clone
2. npm install
3. npm test
4. open dist/bundle.js to check your upgraded code.

API

EditableSourcesWebpackPlugin

Type: constructor Arguments: matchRegExp - RegExp to test bundle name (include extension) that will passed to callback callback - callback function for modifying code. Should return changed source code.

Any bundle that matched matchRegExp will be passed to the callback as sourceCode argument. Should return changed source code.

If bundle contains source map, new source map will be generated for the edited source code.

If new source map was generated inside callback, you should returns object with sourceCode and sourceMap properties instead string.

new EditableSourcesWebpackPlugin(/\.js$/, function (sourceCode) {
    var data = NpmPackageWithoutWebpackSupport(sourceCode);
    
    return {
        sourceCode: data.sourceCode,
        sourceMap: data.sourceMap
    };
})

License

Copyright (C) 2016 Timofey Kachalov.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

• Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
• Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.