5

用nodejs 替换文件中所有图片的url

 2 years ago
source link: https://www.cnblogs.com/windofelegant/p/4164848.html
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因业务需求，大量文件需要替换url到不同的环境。

所以用nodejs写了这个。本来想用python写，但是大部分同事只有nodejs环境。

主要的命令node rurl.js -new http://www.g.cn/

替换原有.png .jpg图片图片路劲到 http://www.g.cn/

比如原来是 background:url(http://www.yoursite.com/a/b/c/d.png);

background:url(http://www.g.cn/d.png)；

如果某url加上!important.
如：

background:url(http://www.yoursite.com/a/b/c/d.png) !important;
则这条不会替换。
代码灵活应用，你可以改成替换其他东西。

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/**
* replace image url script.
* you can input command like "node rurl.js -new http://www.g.cn/" to use it.
* any css includes "!important" will not be effected.
*/
//your new replace url
var arguments = process.argv.slice(2);
var command = arguments[0]+"";
var newReplaceUrl = arguments[1]+"";
if(command != '-new' || newReplaceUrl == null){
throw 'please input your new url. Eg: node rurl.js -new https://www.g.cn/';
}
var fs = require('fs');
var files = ["bank.css", "wallet.css"];
var URL_REG = /url\(.*?;/g;
var PIC_REG = /url\(.*?(?=[A-Za-z_\-0-9]*(\.png|\.jpg))/;
for(var i=0;i<files.length;i++){
var file = files[i];
(function (_file){
fs.readFile(_file,function (err,data){
data = data + "";
data = data.replace(URL_REG,function (word){
if(word.indexOf("important") != -1){
return word;
}else{
var url = "url(" + newReplaceUrl;
return word.replace(PIC_REG, url);
}
});
fs.writeFile(_file, data, function(err){
if(err){
console.log("error!" + _file);
}else{
console.log("success!" + _file);
}
});
})
})(file)
}

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