Quick Start

Managing your CSS in a Gradle build is super easy now! Just add this to your build.gradle file:

Gradle 2.1+

plugins {
  id "com.eriwen.gradle.css" version "2.14.0"
}

Gradle 2.0-

// Grab the plugin from a Maven Repo automatically
buildscript {
    repositories {
        mavenCentral()
    }
    dependencies {
        classpath 'com.eriwen:gradle-css-plugin:1.11.0'
    }
}

// Invoke the plugin
apply plugin: 'css'

// Declare your sources
css.source {
    dev {
        css {
            srcDir "app/styles"
            include "*.css"
            exclude "*.min.css"
        }
    }
}

// Specify a collection of files to be combined, then minified and finally GZip compressed.
combineCss {
    source = css.source.dev.css.files
    dest = "${buildDir}/all.css"
}

minifyCss {
    source = combineCss
    dest = "${buildDir}/all-min.css"
    yuicompressor { // Optional
        lineBreakPos = -1
    }
}

gzipCss {
    source = minifyCss
    dest = "${buildDir}/all.2.0.4.css"
}

LESS Support

css.source {
    dev {
        css {
            srcDir "app/styles"
            include "*.less"
        }
    }
}

lesscss {
    source = css.source.dev.css.asFileTree
    dest = "${buildDir}/styles"
}

Supports CSS Lint v0.9.10

csslint {
    source = css.source.dev.css.files
    dest = "${buildDir}/csslint.out"
}

Available Tasks and Options

combineCss

• source = Collection of file paths of files to merge
• dest = File/String Path for combined output

minifyCss (Uses the YUI Compressor)

• source = File to minify
• dest = File for minified output
• (Optional) yuicompressor.lineBreakPos = -1 (default) Insert a line break after the specified column number

gzipCss

• source = File to compress
• dest = File/String path for compressed output

less

• source = Files to transpile
• dest = File/String output directory

csslint

• source = Collection of file paths of files to analyze
• dest = File for output
• (Optional) format = 'compact' (default), 'text', 'lint-xml', or 'checkstyle-xml'
• (Optional) warnings = (default is all) Collection of string ids for checks. Try csslint --list-rules to see all possible IDs
• (Optional) errors = (default is none) Collection of string ids for checks. CAUTION: These cause a non-zero exit code and fail the build!

What, you want more? Let me know!

See Also

The Gradle JS Plugin!