added browserify-incremental support

CHANGELOG.md

@@ -1,3 +1,7 @@
+### 5.2.0
+- New: Added `cacheFile` option for [browserify-incremental](https://github.com/jsdf/browserify-incremental) support
+- Update dependencies and added package-lock.json (for npm 5+)
+
 ### 5.1.0
 - Update dependencies. Browserify 14.0
 

README.md

@@ -175,6 +175,14 @@ If true, invoke [watchify](https://github.com/substack/watchify) instead of brow
 
 For watchify to work properly, you have to keep the process running. The option `keepAlive` can help you do that, or you can use another `grunt-watch` task.
 
+#### cacheFile
+
+Type: String
+
+Set to location of [browserify-incremental](https://github.com/jsdf/browserify-incremental) cache file and enable incremental builds via `browserify-incremental`. Mutually exclusive with `watchify`.
+
+Note that unlike `watchify`, this setting is fully compatible with `grunt-contrib-watch` and should be used together with it.
+
 #### keepAlive
 Type: Boolean
 If true and if `watch` above is true, keep the Grunt process alive (simulates grunt-watch functionality).

lib/runner.js

@@ -2,6 +2,7 @@ var _ = require('lodash');
 var path = require('path');
 var resolve = require('resolve');
 var glob = require('glob');
+var browserifyInc = require('browserify-incremental');
 
 module.exports = GruntBrowserifyRunner;
 
@@ -13,6 +14,10 @@ function GruntBrowserifyRunner(options) {
   this.firstBuild = true;
 }
 
+// persist the created browserify instances between calls from grunt-contrib-watch
+// this is specifically for `options.cacheFile`, `browserify-incremental`
+var destinations = {}
+
 GruntBrowserifyRunner.prototype = _.create(GruntBrowserifyRunner.prototype, {
   run: function (files, destination, options, next) {
     var self = this;
@@ -24,13 +29,29 @@ GruntBrowserifyRunner.prototype = _.create(GruntBrowserifyRunner.prototype, {
     // watchify options
     var wOpts = options.watchifyOptions || {};
 
-    // Watchify requires specific arguments
-    if(options.watch) {
+    //determine watchify or browserify-incremental or browserify
+    var b
+    if (options.watch) {
       bOpts = _.extend({ cache: {}, packageCache: {} }, bOpts);
-    }
+      b = this.watchify(this.browserify(bOpts), wOpts)
+    } else if (options.cacheFile) {
+      if (destinations[destination]) {
+        return destinations[destination].call(this, next)
+      }
+      bOpts = Object.assign({}, bOpts, browserifyInc.args)
+      b = this.browserify(bOpts)
+      browserifyInc(b, {cacheFile: options.cacheFile})
 
-    //determine watchify or browserify
-    var b = options.watch ? this.watchify(this.browserify(bOpts), wOpts) : this.browserify(bOpts);
+      b.on('log', function (msg) {
+        self.logger.log.ok(msg.cyan)
+      })
+
+      destinations[destination] = function (done) {
+        doBundle(b, options, this.onBundleComplete(destination, options, done))
+      }
+    } else {
+      b = this.browserify(bOpts)
+    }
 
     b.on('error', function (err) {
       self.logger.fail.warn(err);
@@ -217,4 +238,4 @@ function requireFiles(b, requiredFiles) {
     }
     b.require(filePath, opts);
   });
-}
+}