Build过程图片处理添加 gulp-changed

gulpfile.js

@@ -3,8 +3,8 @@ var gulp = require('gulp');
 var $ = require('gulp-load-plugins')();
 
 var LOCAL_PORT = 9999;
-var SOURCE_ROOT = __dirname + '/app';
-var BUILD_ROOT = __dirname + '/dist';
+var SOURCE_ROOT = './app';
+var BUILD_ROOT = './dist';
 
 /**
  * =====================================
@@ -115,9 +115,13 @@ gulp.task('html2js', function () {
 });
 
 gulp.task('imagemin', function () {
-  gulp.src(SOURCE_ROOT + '/images/*.*')
+  var imgSrc = './app/images/*.*';
+  var imgDst = './dist/images';
+
+  gulp.src(imgSrc)
+  .pipe($.changed('./dist/images'))
   .pipe($.imagemin())
-  .pipe(gulp.dest(BUILD_ROOT + '/images/'));
+  .pipe(gulp.dest(imgDst));
 });
 
 gulp.task('copy', function () {
@@ -135,9 +139,7 @@ gulp.task('clean', function () {
   .pipe($.clean());
 });
 
-gulp.task('build', ['clean'], function () {
-  gulp.start('usemin', 'imagemin', 'copy');
-});
+gulp.task('build', ['usemin', 'imagemin', 'copy']);
 
 /**
  * =====================================

package.json

@@ -8,32 +8,33 @@
   },
   "dependencies": {},
   "devDependencies": {
+    "connect-livereload": "*",
+    "express": "^4.0.0-rc3",
     "gulp": "^3.5.6",
+    "gulp-autoprefixer": "~0.0.6",
+    "gulp-cache": "~0.1.1",
+    "gulp-changed": "^0.3.0",
+    "gulp-clean": "~0.2.4",
+    "gulp-concat": "^2.1.7",
+    "gulp-connect": "~1.0.7",
+    "gulp-exec": "~1.0.4",
+    "gulp-imagemin": "~0.1.5",
+    "gulp-jshint": "^1.5.0",
     "gulp-load-plugins": "^0.3.0",
-    "gulp-usemin": "~0.3.1",
-    "gulp-ngmin": "^0.1.2",
-    "gulp-uglify": "~0.2.1",
     "gulp-minify-css": "~0.3.0",
     "gulp-minify-html": "^0.1.2",
+    "gulp-ng-html2js": "~0.1.6",
+    "gulp-ngmin": "^0.1.2",
     "gulp-rev": "^0.2.1",
-    "gulp-util": "~2.2.9",
-    "gulp-connect": "~1.0.7",
-    "gulp-exec": "~1.0.4",
-    "gulp-autoprefixer": "~0.0.6",
-    "gulp-jshint": "^1.5.0",
-    "gulp-imagemin": "~0.1.5",
-    "gulp-clean": "~0.2.4",
-    "gulp-cache": "~0.1.1",
     "gulp-size": "~0.1.2",
-    "gulp-useref": "^0.1.2",
-    "gulp-concat": "^2.1.7",
-    "gulp-ng-html2js": "~0.1.6",
     "gulp-task-listing": "^0.2.2",
-    "express": "^4.0.0-rc3",
-    "connect-livereload": "*",
-    "tiny-lr": "*",
+    "gulp-uglify": "~0.2.1",
+    "gulp-usemin": "~0.3.1",
+    "gulp-useref": "^0.1.2",
+    "gulp-util": "~2.2.9",
+    "jshint-stylish": "^0.1.5",
     "open": "*",
-    "jshint-stylish": "^0.1.5"
+    "tiny-lr": "*"
   },
   "engines": {
     "node": ">=0.10.0"