Add generated files with gradle before creating WAR

Question

During development, we use javascript and CSS files that have not been reduced. But they must be minimized (with the help of a unicompressor) when a production war is being built. So, I want to replace the original javascript and CSS files with miniature ones. The structure of the project is as follows (nothing special):

+ webapp
|-- js
|-- css
...

I want to do the following: before WAR creates Gradle, I want to minimize the above files with yuicompressor and want them to be packaged in WAR.

What I have done so far is to run the task before creating the WAR, which minimizes the files:

war {
   it.dependsOn minifyJavaScript
}

The minifyJavaScript task accepts all files in the webapp / js folder, minimizes them and saves them in the $ {buildDir} / js directory. The only thing I could not work for was that these files are packaged in WAR. I tried to configure sourceSets, but I got an error from Gradle:

apply plugin: 'java'

...
sourceSets {
    main {
        webapp {
            srcDir "${buildDir}/js"
        }
    }
}

Error: Unsupported Gradle DSL Method Found: 'sourceSets ()'

I also tried to include files using:

war {
   it.dependsOn minifyJavaScript
   include ${buildDir}/js
}

The problem with this solution is that the WAR contains only mini files.

So, is there a way to tell Gradle to add the path $ {buildDir} / js during the creation of the WAR? Or is there a better / easier way to include mini files?

Answer 1

This is harder than I thought:

war {
    it.dependsOn minifyJavaScript
    exclude "js"
    from( "${buildDir}/js", {
        into 'js'
    })
}

JS . , js ( WAR).

Answer 2

src/main/webapp. .