如何将参数或参数传递给Gradle任务 [英] How to pass parameters or arguments into a gradle task

问题描述

我有一个gradle构建脚本，试图在其中包含Eric Wendelin的css插件- http://eriwen. github.io/gradle-css-plugin/

I have a gradle build script into which I am trying to include Eric Wendelin's css plugin - http://eriwen.github.io/gradle-css-plugin/

实施起来很容易，并且因为我只想缩小(而不是合并和gzip压缩)，所以构建脚本的相关部分看起来像这样:

Its easy enough to implement, and because I only want minification (rather than combining and gzipping), I've got the pertinent parts of the build script looking like this:

minifyCss {
    source = "src/main/webapp/css/brandA/styles.css"
    dest = "${buildDir}/brandA/styles.css"
    yuicompressor {
        lineBreakPos = -1
    }
}

war {
    baseName = 'ex-ren'
}

war.doFirst {
    tasks.myTask.minifyCss.execute()
}

这很完美-当我运行gradle war任务时，它将调用minifyCss任务，获取源CSS文件，并在buildDir中创建缩小版本

This is perfect - when I run the gradle war task, it calls the minifyCss task, takes the source css file, and creates a minified version in the buildDir

但是，我有一些需要缩小的css文件，但不需要合并为一个文件(因此，我不使用CombineCss任务)

However, I have a handful of css files which need minify-ing, but not combining into one file (hence I'm not using the combineCss task)

我想做的是使minifyCss任务参考变量的source和dest属性(假设这是正确的术语?)-传递给签名中任务的变量，或者全局变量变量之类的东西...

What I'd like to be able to do is make the source and dest properties (assuming that's the correct terminology?) of the minifyCss task reference variables of some sort - either variables passed into the task in the signature, or global variables, or something ...

我猜是这样的(不起作用):

Something like this I guess (which doesn't work):

minifyCss(sourceFile, destFile) {
    source = sourceFile
    dest = destFile
    yuicompressor {
        lineBreakPos = -1
    }
}

war {
    baseName = 'ex-ren'
}

war.doFirst {
    tasks.myTask.minifyCss.execute("src/main/webapp/css/brandA/styles.css", "${buildDir}/brandA/styles.css")
    tasks.myTask.minifyCss.execute("src/main/webapp/css/brandB/styles.css", "${buildDir}/brandB/styles.css")
    tasks.myTask.minifyCss.execute("src/main/webapp/css/brandC/styles.css", "${buildDir}/brandC/styles.css")
}

这也不起作用:

def sourceFile = null
def destFile = null

minifyCss {
    source = sourceFile
    dest = destFile
    yuicompressor {
        lineBreakPos = -1
    }
}

war {
    baseName = 'ex-ren'
}

war.doFirst {
    sourceFile = "src/main/webapp/css/brandA/styles.css"
    destFile = "${buildDir}/brandA/styles.css"
    tasks.myTask.minifyCss.execute()
}

对于我一生，我无法弄清楚如何调用任务并在:(

For the life of me I cannot work out how to call a task and pass variables in :(

非常感谢任何帮助；

推荐答案

我认为您可能希望将每组CSS的缩小视为一个单独的任务

I think you probably want to view the minification of each set of css as a separate task

task minifyBrandACss(type: com.eriwen.gradle.css.tasks.MinifyCssTask) {
     source = "src/main/webapp/css/brandA/styles.css"
     dest = "${buildDir}/brandA/styles.css"
}

etc etc

在战争任务中执行缩小任务对我来说似乎很奇怪-使它们成为战争任务的依存关系更有意义吗?

BTW executing your minify tasks in an action of the war task seems odd to me - wouldn't it make more sense to make them a dependency of the war task?

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