diff --git a/README.md b/README.md
index 6f6a59c..f72de74 100644
--- a/README.md
+++ b/README.md
@@ -28,10 +28,51 @@ gulp.src('file.js')
```javascript
gulp.src('file.js')
.pipe(javascriptObfuscator({
- compact:true,
- sourceMap: true
+ compact: true
}))
.pipe(gulp.dest('dist'));
```
-Using **sourceMap** option with value set to **true** will also output a _.map_ file to Gulp stream.
+The only exception is obfuscator's `sourceMap` option which must not be set, as it will be handled automatically when using `gulp-sourcemaps`.
+
+## Source Maps
+
+With version `1.1.6` onwards, gulp-javascript-obfuscator can be used in tandem with [gulp-sourcemaps](https://github.com/floridoo/gulp-sourcemaps) in order to generate source maps for your javascript files.
+
+You will need to initialize gulp-sourcemaps prior to running gulp-javascript-obfuscator and write the source maps after, as such:
+
+```javascript
+const sourcemaps = require('gulp-sourcemaps');
+
+gulp.src('file.js')
+ .pipe(sourcemaps.init())
+ .pipe(javascriptObfuscator({
+ compact: true
+ }))
+ .pipe(sourcemaps.write())
+ .pipe(gulp.dest('dist'));
+```
+
+This will output a `file.js.map` file to the **dist** directory.
+
+You can chain other gulp plugins as well:
+
+```javascript
+const sourcemaps = require('gulp-sourcemaps');
+
+gulp.src('file.js')
+ .pipe(sourcemaps.init())
+ // use babel to pre-process javascript files
+ .pipe(babel({
+ presets: ['@babel/preset-env']
+ }))
+ .pipe(javascriptObfuscator({
+ compact: true
+ }))
+ .pipe(sourcemaps.write())
+ .pipe(gulp.dest('dist'));
+```
+
+### Alternative source maps method
+
+For backwards compatibility, if `gulp-sourcemaps` is not used and obfuscator's **sourceMap** option is set to **true**, a _.map_ file will be thrown to Gulp stream. ([This method is _deprecated_ and not recommended for future use.](https://github.com/javascript-obfuscator/gulp-javascript-obfuscator/pull/18#backwards-compatibility))
diff --git a/index.js b/index.js
index 78b0d12..2a7dd71 100644
--- a/index.js
+++ b/index.js
@@ -2,22 +2,35 @@ const through2 = require('through2');
const Vinyl = require('vinyl');
const JavaScriptObfuscator = require('javascript-obfuscator');
const PluginError = require('plugin-error');
+const applySourceMap = require('vinyl-sourcemaps-apply');
module.exports = function gulpJavaScriptObfuscator (options = {}) {
return through2.obj(function (file, enc, cb) {
if (file.isNull()) return cb(null, file);
if (!file.isBuffer()) throw new PluginError('gulp-javascript-obfuscator', 'Only Buffers are supported!');
+ if (file.sourceMap) {
+ options.sourceMap = true;
+ options.inputFileName = file.relative;
+ options.sourceMapMode = 'separate';
+ }
try {
const obfuscationResult = JavaScriptObfuscator.obfuscate(String(file.contents), options);
file.contents = new Buffer(obfuscationResult.getObfuscatedCode());
if (options.sourceMap && options.sourceMapMode !== 'inline') {
- this.push(new Vinyl({
- cwd: file.cwd,
- base: file.base,
- path: file.path + '.map',
- contents: new Buffer(obfuscationResult.getSourceMap())
- }))
+ if ( file.sourceMap ) {
+ const sourceMap = JSON.parse(obfuscationResult.getSourceMap());
+ sourceMap.file = file.sourceMap.file;
+ applySourceMap(file, sourceMap);
+ }
+ else {
+ this.push(new Vinyl({
+ cwd: file.cwd,
+ base: file.base,
+ path: file.path + '.map',
+ contents: new Buffer(obfuscationResult.getSourceMap())
+ }))
+ }
}
return cb(null, file);
} catch (err) {
diff --git a/package.json b/package.json
index 056f59d..fe270bb 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
{
"name": "gulp-javascript-obfuscator",
- "version": "1.1.5",
+ "version": "1.1.6",
"description": "Gulp plugin for javascript-obfuscator Node.JS package",
"homepage": "https://github.com/javascript-obfuscator/gulp-javascript-obfuscator",
"repository": {
@@ -27,7 +27,7 @@
],
"author": "Wain-PC",
"contributors": [
- "adamxtokyo"
+ "adamxtokyo", "DRSDavidSoft"
],
"license": "MIT",
"dependencies": {
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