Added ENV for dead-code elimination in production mode

env/development.js

@@ -0,0 +1,5 @@
+module.exports = {
+    production: false,
+    development: true,
+    node: false
+};

env/node.js

@@ -0,0 +1,5 @@
+module.exports = {
+    production: true,
+    development: false,
+    node: true
+};

env/production.js

@@ -0,0 +1,5 @@
+module.exports = {
+    production: true,
+    development: false,
+    node: false
+};

example/file_input.js

@@ -95,7 +95,6 @@ $(function() {
                 patchSize: "large",
                 halfSample: false
             },
-            numOfWorkers: 1,
             decoder: {
                 readers: ["code_128_reader"]
             },

package.json

@@ -11,6 +11,7 @@
     "babel-loader": "^5.3.2",
     "chai": "^3.4.1",
     "core-js": "^1.2.1",
+    "cross-env": "^1.0.7",
     "eslint": "^1.10.3",
     "grunt": "^0.4.5",
     "grunt-cli": "^0.1.13",
@@ -39,8 +40,8 @@
   "scripts": {
     "test": "grunt test",
     "integrationtest": "grunt integrationtest",
-    "build": "webpack && webpack --config webpack.config.min.js && grunt uglyasm && webpack --config webpack.node.config.js",
-    "watch": "webpack --watch",
+    "build:dev": "webpack && webpack --config webpack.config.min.js && grunt uglyasm && webpack --config webpack.node.config.js",
+    "watch": "cross-env BUILD_ENV=development webpack --watch",
     "lint": "eslint src"
   },
   "repository": {

src/config/config.dev.js

@@ -0,0 +1,51 @@
+module.exports = {
+    inputStream: {
+        name: "Live",
+        type: "LiveStream",
+        constraints: {
+            width: 640,
+            height: 480,
+            minAspectRatio: 0,
+            maxAspectRatio: 100,
+            facing: "environment" // or user
+        },
+        area: {
+            top: "0%",
+            right: "0%",
+            left: "0%",
+            bottom: "0%"
+        },
+        singleChannel: false // true: only the red color-channel is read
+    },
+    locate: true,
+    numOfWorkers: 0,
+    decoder: {
+        readers: [
+            'code_128_reader'
+        ],
+        debug: {
+            drawBoundingBox: false,
+            showFrequency: false,
+            drawScanline: false,
+            showPattern: false,
+        }
+    },
+    locator: {
+        halfSample: true,
+        patchSize: "medium", // x-small, small, medium, large, x-large
+        debug: {
+            showCanvas: true,
+            showPatches: true,
+            showFoundPatches: false,
+            showSkeleton: false,
+            showLabels: false,
+            showPatchLabels: false,
+            showRemainingPatchLabels: false,
+            boxFromPatches: {
+                showTransformed: false,
+                showTransformedBox: false,
+                showBB: false
+            }
+        }
+    }
+};

src/config/config.js

@@ -1,48 +1,12 @@
-export default {
-    inputStream: {
-        name: "Live",
-        type: "LiveStream",
-        constraints: {
-            width: 640,
-            height: 480,
-            minAspectRatio: 0,
-            maxAspectRatio: 100,
-            facing: "environment" // or user
-        },
-        area: {
-            top: "0%",
-            right: "0%",
-            left: "0%",
-            bottom: "0%"
-        },
-        singleChannel: false // true: only the red color-channel is read
-    },
-    debug: false,
-    locate: true,
-    numOfWorkers: 4,
-    decoder: {
-        drawBoundingBox: false,
-        showFrequency: false,
-        drawScanline: false,
-        showPattern: false,
-        readers: [
-            'code_128_reader'
-        ]
-    },
-    locator: {
-        halfSample: true,
-        patchSize: "medium", // x-small, small, medium, large, x-large
-        showCanvas: false,
-        showPatches: false,
-        showFoundPatches: false,
-        showSkeleton: false,
-        showLabels: false,
-        showPatchLabels: false,
-        showRemainingPatchLabels: false,
-        boxFromPatches: {
-            showTransformed: false,
-            showTransformedBox: false,
-            showBB: false
+let config;
+
+console.log(ENV);
+if(ENV.development){
+    config = require('./config.dev.js');
+} else if (ENV.node) {
+    config = require('./config.node.js');
+} else {
+    config = require('./config.prod.js');
 }
-    }
-};
+
+export default config;

src/config/config.node.js

@@ -0,0 +1,25 @@
+module.exports = {
+    inputStream: {
+        type: "ImageStream",
+        sequence: false,
+        size: 800,
+        area: {
+            top: "0%",
+            right: "0%",
+            left: "0%",
+            bottom: "0%"
+        },
+        singleChannel: false // true: only the red color-channel is read
+    },
+    locate: true,
+    numOfWorkers: 0,
+    decoder: {
+        readers: [
+            'code_128_reader'
+        ]
+    },
+    locator: {
+        halfSample: true,
+        patchSize: "medium", // x-small, small, medium, large, x-large
+    }
+};

src/config/config.prod.js

@@ -0,0 +1,31 @@
+module.exports = {
+    inputStream: {
+        name: "Live",
+        type: "LiveStream",
+        constraints: {
+            width: 640,
+            height: 480,
+            minAspectRatio: 0,
+            maxAspectRatio: 100,
+            facing: "environment" // or user
+        },
+        area: {
+            top: "0%",
+            right: "0%",
+            left: "0%",
+            bottom: "0%"
+        },
+        singleChannel: false // true: only the red color-channel is read
+    },
+    locate: true,
+    numOfWorkers: 4,
+    decoder: {
+        readers: [
+            'code_128_reader'
+        ]
+    },
+    locator: {
+        halfSample: true,
+        patchSize: "medium", // x-small, small, medium, large, x-large
+    }
+};

src/decoder/barcode_decoder.js

@@ -95,10 +95,10 @@ export default {
                 var i,
                     vis = [{
                         node: _canvas.dom.frequency,
-                        prop: config.showFrequency
+                        prop: config.debug.showFrequency
                     }, {
                         node: _canvas.dom.pattern,
-                        prop: config.showPattern
+                        prop: config.debug.showPattern
                     }];
 
                 for (i = 0; i < vis.length; i++) {
@@ -154,12 +154,12 @@ export default {
                 i,
                 barcodeLine = Bresenham.getBarcodeLine(inputImageWrapper, line[0], line[1]);
 
-            if (config.showFrequency) {
+            if (ENV.development && config.debug.showFrequency) {
                 ImageDebug.drawPath(line, {x: 'x', y: 'y'}, _canvas.ctx.overlay, {color: 'red', lineWidth: 3});
                 Bresenham.debug.printFrequency(barcodeLine.line, _canvas.dom.frequency);
             }
             Bresenham.toBinaryLine(barcodeLine);
-            if (config.showPattern) {
+            if (ENV.development && config.debug.showPattern) {
                 Bresenham.debug.printPattern(barcodeLine.line, _canvas.dom.pattern);
             }
 
@@ -228,9 +228,11 @@ export default {
                 result,
                 lineLength;
 
-            if (config.drawBoundingBox && ctx) {
+            if (ENV.development) {
+                if (config.debug.drawBoundingBox && ctx) {
                     ImageDebug.drawPath(box, {x: 0, y: 1}, ctx, {color: "blue", lineWidth: 2});
                 }
+            }
 
             line = getLine(box);
             lineLength = getLineLength(line);

src/quagga.js

@@ -489,7 +489,6 @@ export default {
                 size: 800,
                 src: config.src
             },
-            numOfWorkers: 1,
             locator: {
                 halfSample: false
             }

webpack.config.js

@@ -33,6 +33,9 @@ module.exports = {
     plugins: [
         new MyUmdPlugin({
             library: 'Quagga'
+        }),
+        new webpack.DefinePlugin({
+            ENV: require(path.join(__dirname, './env/', process.env.BUILD_ENV))
         })
     ]
 };