问题
I'm trying to compress multiple JS files using the YUI Compressor.
I think that I'm getting the syntax wrong. I want to compress all files in a directory that start with at_
. However, when YUI Compressor runs, I find that YUI Compressor has placed only the compressed version of one file in the output.
To be specific, suppose I have three files: at_1.js, at_2.js, and at_3.js. I would like the compressed output of all three js files in at_min.js
I'm using the following syntax:
java -jar c:\Tools\yuicompressor-2.4.2.jar --type js --charset utf-8 -o c:\temp\at_min.js c:\temp\scripts\at_*
When I open up at_min.js, I find only the compressed contents of at_1.js. What am I doing wrong?
回答1:
If you are using Windows you can use YUI Compressor for .Net to do that.
Or combining files before compressing with a simple command:
copy /b at_1.js+at_2.js+at_3.js at_combined.js
java -jar c:\Tools\yuicompressor-2.4.2.jar --type js --charset utf-8 -o at_min.js at_combined.js
回答2:
I have written a small program to compress multiple javascript files using yuicompressor and node js.
var compressor = require('yuicompressor');
//Compressor Options:
var compressorOptions = {
charset: 'utf8',
type: 'js',
nomunge: false
}
/* List of files and file path. Just replace the file names and path with yours */
var file = [{
"path": "assets/www/modules/eApp/controllers/",
"type": "js",
"name": ["BuyOnlineController", "CustomerDetailsController", "DashboardController", "DashboardListingController", "DocumentUploadController", "HomeController", "KYCDetailsController", "PaymentAcknowledgementController", "PaymentController", "ProductListingController", "ReviewAndAcceptanceController"]
},
{
"path": "assets/www/modules/login/controllers/",
"type": "js",
"name": ["EappLoginController", "InboxController", "LandingController", "LoginController", "MenuController", "MyAccountController", "SyncForEappController"]
},
{
"path": "assets/www/lib/vendor/general/",
"type": "js",
"name": ["overlays"]
}];
function minify(i, j){
i = (i == undefined) ? 0 : i;
j = (j == undefined) ? 0 : j;
filePath = file[i].path;
fileType = file[i].type;
name = file[i].name[j];
fileName = filePath+name+"."+fileType;
minifiedFileName = filePath+name+".min."+fileType;
if(j == file[i].name.length - 1){
i += 1;
j = 0;
}
else
j += 1;
compressor.compress(fileName, compressorOptions, function(err, data, extra) {
var fs = require('fs');
fs.writeFile(minifiedFileName, data, function(err) {
if(err) {
console.log(err);
} else {
console.log("The file "+minifiedFileName+" was saved successfully!");
if(i != file.length)
minify(i, j);
}
});
});
}
minify(0,0);
来源:https://stackoverflow.com/questions/7517849/compressing-multiple-javascript-files-with-yuicompressor