Concatenating JavaScript files using Ant

Question

I have about 50-60 js files and there are dependencies among them so I need to maintain an order while cocatenating. Writing all the names in "files" attribute would make the build.xml messy and any addition of js files in future would need to added accordingly. So, I wanted to write the order in a separate txt file and just copy the contents using Ant following that order. Is it possible ?

martin clayton · Accepted Answer · 2012-12-23 10:51:25Z

1

You can do what you want using a resourcelist, for example:

<concat destfile="concatenated.js">
    <resourcelist>
        <file file="js.files.txt"/>
        <filterchain>
            <striplinecomments>
                <comment value="#"/>
            </striplinecomments>
        </filterchain>
    </resourcelist>
</concat>

The filterchain isn't required, but is useful as you can then include comment lines in your list-of-files.

answered Dec 23, 2012 at 10:51

martin clayton

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Zdeněk Mlčoch · Accepted Answer · 2012-12-23 11:01:53Z

0

You can use order independent declarations like these:

// in every file
if(!("myLib" in window))myLib = {};
if(!("canvas" in myLib))myLib.canvas = { .... };

//next file
if(!("myLib" in window))myLib = {};
myLib = $.extend(myLib, true, {
   init: function(){},
   move: function(){}
});
//in index
myLib.init();

answered Dec 23, 2012 at 11:01

Zdeněk Mlčoch

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