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gulp-md5-img

v1.0.1

Published

md5 img, like a.png、[email protected][email protected] in css.(notice:base on https://github.com/wpfpizicai/gulp-md5-plus)

Downloads

5

Readme

安装:

npm install --save-dev gulp-md5-img

说明:本代码大部分都来源于 gulp-md5-plus,我只是进行了改写。

是 gulp 的插件,本插件必须配合着 gulp-md5-save 使用。

主要作用是处理网站上的图片问题,因为网站的图片长长需要适配高清屏幕,所以就会存在两张图片 a.jpg 和 [email protected],如果按照正常的 md5 处理,两张图片的名称就会不同(例如:a-54254.jpg 和 [email protected]),这种情况在使用 angular 的 ng-src='a.jpg' 时,在高分屏上就会出现bug(angular 会去加载[email protected]), 通过本插件处理,图片会被处理为 a-54254.jpg 和 [email protected]

将保存的 {"aa.jpg" : "3b67254a6a"}应用到具体的图片文件上,并且修改 css、html 上对应的名称

使用方法分为两步:

1、使用 gulp-md5-save 准备数据,

var md5Save = require("gulp-md5-save");
var data = {}; //一倍图:md5 的 map,用于存放数据
var sourceTmp = ["../../view/img/**"];
    // 具体模块 img 里的图片 md5
gulp.src(sourceTmp)
    .pipe(md5Save(10, data));
    

最终会把处理好的数据存放到 data 中

2、使用本插件处理文件(修改具体文件名称),以及修改对应的字符串(css 中图片的引用名称)

var md5Img = require("gulp-md5-img");
var md5Save = require("gulp-md5-save");
var sourceTmp = ["img/**"];
var targetImg = "/img";
// 具体模块 img 里的图片 md5
gulp.src(sourceTmp)
    .pipe(md5Img(10 ,['/css/*.css', 'index.html', '/js/*.js'], data))
    .pipe(gulp.dest(targetImg));

#Example:

Images path:

img
├── pc
│   ├── a.jpg
│   ├── [email protected]
│   ├── b.jpg
├── mobile
│   ├── a.jpg
│   ├── [email protected]
└── a.jpg

css: index.css

.figure {
	background-image: -webkit-image-set(url(img/pc/a.jpg) 1x, url(img/pc/[email protected]) 2x);
}
.title {
	background-image: -webkit-image-set(url(img/mobile/a.png) 1x, url(	img/mobile/[email protected]) 2x);
}
.logo {
	background-image: url(img/a.jpg);
}
.logo-b {
	background-image: url(img/pc/b.jpg);
}

Code:

var md5Save = require("gulp-md5-save");
var md5Img = require("gulp-md5-img");
var data = {}; //save md5 value
var sourceImg = ["./img/**"];
var targetImg = "./release/img";
var linkFiles = ['./index.css'];
gulp.task('save', function () {
    gulp.src(sourceImg)
        .pipe(md5Save(10, data));
});
gulp.task('imgEdit', ['save'], function () {
    gulp.src(sourceImg)
        .pipe(md5Img(10 ,linkFiles, data))
        .pipe(gulp.dest(targetImg));
});

Result:

1、Images path

release/img
├── pc
│   ├── a_b14ff9e1de.jpg
│   ├── [email protected]
│   ├── b_629ccc774a.jpg
├── mobile
│   ├── a_b14ff9e1de.jpg
│   ├── [email protected]
└── a_b14ff9e1de.jpg

2、index.css

.figure {
	background-image: -webkit-image-set(url(img/pc/a_b14ff9e1de.jpg) 1x, url(img/pc/[email protected]) 2x);
}
.title {
	background-image: -webkit-image-set(url(img/mobile/a_b14ff9e1de.jpg) 1x, url(	img/mobile/[email protected]) 2x);
}
.logo {
	background-image: url(img/a_b14ff9e1de.jpg);
}
.logo-b {
	background-image: url(img/pc/b_629ccc774a.jpg);
}