7.0.0

.eslintrc.json

@@ -1,22 +1,23 @@
 {
-    "parserOptions": {
-        "sourceType": "module"
-    },
-    "env": {
-        "es6": true,
-        "node": true,
-        "mocha": true,
-        "jasmine": true
-    },
-    "extends": "eslint:recommended",
-    "rules": {
-        "no-cond-assign": 2,
-        "no-console": 1,
-        "no-const-assign": 2,
-        "no-class-assign": 2,
-        "no-this-before-super": 2,
-        "no-unused-vars": 1,
-        "no-var": 2,
-        "object-shorthand": [2, "always"]
-    }
+  "parserOptions": {
+    "ecmaVersion": 2017,
+    "sourceType": "module"
+  },
+  "env": {
+    "es6": true,
+    "node": true,
+    "mocha": true,
+    "jasmine": true
+  },
+  "extends": "eslint:recommended",
+  "rules": {
+    "no-cond-assign": 2,
+    "no-console": 1,
+    "no-const-assign": 2,
+    "no-class-assign": 2,
+    "no-this-before-super": 2,
+    "no-unused-vars": 1,
+    "no-var": 2,
+    "object-shorthand": [2, "always"]
+  }
 }

.travis.yml

@@ -1,7 +1,7 @@
 language: node_js
 dist: trusty
 node_js:
-  - '6'
+  - "8"
 sudo: required
 addons:
   chrome: stable

CHANGELOG.md

@@ -1,5 +1,23 @@
 # Change Log
 
+## Unreleased
+
+### Added
+
+- Support for Rollup `1.0.0` [#42](https://github.com/jlmakes/karma-rollup-preprocessor/issues/42)
+
+### Changed
+
+- **Breaking:** Dropped support for Rollup `< 1.0.0`
+- **Breaking:** Dropped support for Node `< 8.0.0`
+- Watcher no longer relies on Karma’s `run_start` event. [#41](https://github.com/jlmakes/karma-rollup-preprocessor/issues/41)
+- Upgraded dependencies.
+
+### Fixed
+
+- Watcher only rebundles changed files and their dependents. [#28](https://github.com/jlmakes/karma-rollup-preprocessor/issues/28)
+- Each entry file has its bundle cache.
+
 ## [6.1.2] - 2019-01-02
 
 ### Changed
@@ -33,7 +51,7 @@
 
 ### Changed
 
-- **Breaking:** Dropped support for Node < 6.
+- **Breaking:** Dropped support for Node `< 6.0.0`
 
 ## [5.1.1] - 2018-01-08
 
@@ -45,7 +63,7 @@
 
 ### Added
 
-- File names containing null bytes are now ignored.
+- File names containing null bytes are now ignored. [@brianmhunt](https://github.com/brianmhunt) [#30](https://github.com/jlmakes/karma-rollup-preprocessor/issues/30)
 
 ## [5.0.3] - 2018-01-05
 

LICENSE.md

@@ -1,6 +1,6 @@
 The MIT License
 
-Copyright (C) 2015–2018 [Contributors](https://github.com/jlmakes/karma-rollup-preprocessor/graphs/contributors)
+Copyright (C) 2019 [Contributors](https://github.com/jlmakes/karma-rollup-preprocessor/graphs/contributors)
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

README.md

@@ -32,9 +32,9 @@
 
 ## Features
 
-* Rebundles your files when watched dependencies change
-* Caches bundle output for improved performance
-* Maintained with ![heart](http://i.imgur.com/oXJmdtz.gif) by [@jlmakes](https://twitter.com/jlmakes)
+- Rebundles your files when watched dependencies change
+- Caches bundle output for improved performance
+- Maintained with ![heart](http://i.imgur.com/oXJmdtz.gif) by [@jlmakes](https://twitter.com/jlmakes)
 
 <br>
 
@@ -57,33 +57,33 @@ Below is a well-founded recommendation using the [Bublé](https://buble.surge.sh
 ```js
 // karma.conf.js
 module.exports = function(config) {
-	config.set({
-		files: [
-			/**
-			 * Make sure to disable Karma’s file watcher
-			 * because the preprocessor will use its own.
-			 */
-			{ pattern: 'test/**/*.spec.js', watched: false }
-		],
-
-		preprocessors: {
-			'test/**/*.spec.js': ['rollup']
-		},
-
-		rollupPreprocessor: {
-			/**
-			 * This is just a normal Rollup config object,
-			 * except that `input` is handled for you.
-			 */
-			plugins: [require('rollup-plugin-buble')()],
-			output: {
-				format: 'iife',            // Helps prevent naming collisions.
-				name: '<your_project>',    // Required for 'iife' format.
-				sourcemap: 'inline'        // Sensible for testing.
-			}
-		}
-	})
-}
+  config.set({
+    files: [
+      /**
+       * Make sure to disable Karma’s file watcher
+       * because the preprocessor will use its own.
+       */
+      { pattern: "test/**/*.spec.js", watched: false }
+    ],
+
+    preprocessors: {
+      "test/**/*.spec.js": ["rollup"]
+    },
+
+    rollupPreprocessor: {
+      /**
+       * This is just a normal Rollup config object,
+       * except that `input` is handled for you.
+       */
+      plugins: [require("rollup-plugin-buble")()],
+      output: {
+        format: "iife", // Helps prevent naming collisions.
+        name: "<your_project>", // Required for 'iife' format.
+        sourcemap: "inline" // Sensible for testing.
+      }
+    }
+  });
+};
 ```
 
 <br>
@@ -95,40 +95,40 @@ Below shows an example where [configured preprocessors](http://karma-runner.gith
 ```js
 // karma.conf.js
 module.exports = function(config) {
-	config.set({
-		files: [{ pattern: 'test/**/*.spec.js', watched: false }],
-
-		preprocessors: {
-			'test/buble/**/*.spec.js': ['rollup'],
-			'test/babel/**/*.spec.js': ['rollupBabel']
-		},
-
-		rollupPreprocessor: {
-			plugins: [require('rollup-plugin-buble')()],
-			output: {
-				format: 'iife',
-				name: '<your_project>',
-				sourcemap: 'inline'
-			}
-		},
-
-		customPreprocessors: {
-			/**
-			 * Clones the base preprocessor, but overwrites
-			 * its options with those defined below...
-			 */
-			rollupBabel: {
-				base: 'rollup',
-				options: {
-					// In this case, to use a different transpiler:
-					plugins: [require('rollup-plugin-babel')()]
-				}
-			}
-		}
-	})
-}
+  config.set({
+    files: [{ pattern: "test/**/*.spec.js", watched: false }],
+
+    preprocessors: {
+      "test/buble/**/*.spec.js": ["rollup"],
+      "test/babel/**/*.spec.js": ["rollupBabel"]
+    },
+
+    rollupPreprocessor: {
+      plugins: [require("rollup-plugin-buble")()],
+      output: {
+        format: "iife",
+        name: "<your_project>",
+        sourcemap: "inline"
+      }
+    },
+
+    customPreprocessors: {
+      /**
+       * Clones the base preprocessor, but overwrites
+       * its options with those defined below...
+       */
+      rollupBabel: {
+        base: "rollup",
+        options: {
+          // In this case, to use a different transpiler:
+          plugins: [require("rollup-plugin-babel")()]
+        }
+      }
+    }
+  });
+};
 ```
 
 ## Support
 
-Supports all Rollup plug-ins, and works on Node `6` and up. Happy bundling!
+Supports all Rollup plug-ins, and works on Node `8` and up. Happy bundling!

karma.conf.js

@@ -1,57 +1,57 @@
 module.exports = function(config) {
-    config.set({
-        plugins: [
-            "karma-jasmine",
-            "karma-mocha-reporter",
-            "karma-chrome-launcher",
-            require("./lib")
-        ],
+  config.set({
+    plugins: [
+      "karma-jasmine",
+      "karma-mocha-reporter",
+      "karma-chrome-launcher",
+      require("./lib")
+    ],
 
-        frameworks: ["jasmine"],
-        reporters: ["mocha"],
-        browsers: ["ChromeHeadless"],
+    frameworks: ["jasmine"],
+    reporters: ["mocha"],
+    browsers: ["ChromeHeadless"],
 
-        logLevel: config.LOG_INFO, // disable > error > warn > info > debug
-        captureTimeout: 60000,
-        autoWatch: true,
-        singleRun: true,
-        colors: true,
-        port: 9876,
+    logLevel: config.LOG_INFO, // disable > error > warn > info > debug
+    captureTimeout: 60000,
+    autoWatch: true,
+    singleRun: true,
+    colors: true,
+    port: 9876,
 
-        basePath: "",
-        files: [
-            { pattern: "test/t1.js", watched: false },
-            { pattern: "test/t2.js", watched: false },
-            { pattern: "test/t3.js", watched: false }
-        ],
-        exclude: [],
+    basePath: "",
+    files: [
+      { pattern: "test/t1.js", watched: false },
+      { pattern: "test/t2.js", watched: false },
+      { pattern: "test/t3.js", watched: false }
+    ],
+    exclude: [],
 
-        preprocessors: {
-            "test/t1.js": ["rollup"],
-            "test/t2.js": ["rollup"],
-            "test/t3.js": ["rollupNode"]
-        },
+    preprocessors: {
+      "test/t1.js": ["rollup"],
+      "test/t2.js": ["rollup"],
+      "test/t3.js": ["rollupNode"]
+    },
 
-        rollupPreprocessor: {
-            output: {
-                name: "lib",
-                format: "iife",
-                sourcemap: "inline"
-            },
-            plugins: [require("rollup-plugin-buble")()]
-        },
+    rollupPreprocessor: {
+      output: {
+        name: "lib",
+        format: "iife",
+        sourcemap: "inline"
+      },
+      plugins: [require("rollup-plugin-buble")()]
+    },
 
-        customPreprocessors: {
-            rollupNode: {
-                base: "rollup",
-                options: {
-                    plugins: [
-                        require("rollup-plugin-node-resolve")(),
-                        require("rollup-plugin-commonjs")(),
-                        require("rollup-plugin-buble")()
-                    ]
-                }
-            }
+    customPreprocessors: {
+      rollupNode: {
+        base: "rollup",
+        options: {
+          plugins: [
+            require("rollup-plugin-node-resolve")(),
+            require("rollup-plugin-commonjs")(),
+            require("rollup-plugin-buble")()
+          ]
         }
-    });
+      }
+    }
+  });
 };

lib/Watcher.js

@@ -0,0 +1,41 @@
+"use strict";
+
+const chokidar = require("chokidar");
+const debounce = require("debounce");
+
+class Watcher {
+  constructor(emitter) {
+    this.emitter = emitter;
+    this.files = new Map();
+    this.watch = chokidar.watch();
+    this.watch.on("change", debounce(this.handleChange.bind(this), 150));
+  }
+
+  add(entry, dependencies) {
+    if (!hasNullByte(entry)) {
+      const filteredDependencies = dependencies.filter(
+        path => !hasNullByte(path)
+      );
+      this.files.set(entry, filteredDependencies);
+      this.watch.add([entry, ...filteredDependencies]);
+    }
+  }
+
+  handleChange(path) {
+    for (const [entry, dependencies] of this.files.entries()) {
+      if (entry === path || dependencies.includes(path)) {
+        return this.refreshFile(entry);
+      }
+    }
+  }
+
+  refreshFile(path) {
+    this.emitter._fileList.changeFile(path, true);
+  }
+}
+
+function hasNullByte(string) {
+  return string.includes("\u0000");
+}
+
+module.exports = Watcher;