sbt-autoprefixer

sbt-web plugin that uses Autoprefixer to post-process CSS and add vendor prefixes to rules by Can I Use.

To use the latest version from Github, add the following to the project/plugins.sbt of your project:

    lazy val root = project.in(file(".")).dependsOn(sbtAutoprefixer)
    lazy val sbtAutoprefixer = uri("git://github.com/mkurz/sbt-autoprefixer")

Your project's build file also needs to enable sbt-web plugins. For example with build.sbt:

    lazy val root = (project in file(".")).enablePlugins(SbtWeb)

Declare the execution order of the asset pipeline:

pipelineStages in Assets := Seq(autoprefixer)

The following option are supported:

Option	Description
browsers	Specify browsers versions. Default: empty
cascade	Creates nice visual cascade of prefixes. Default: true.
sourceMap	Enables source maps. Default: true.
inlineSourceMap	Enables inline source maps by data:uri to annotation comment. Default: false.

The following sbt code illustrates how to include inline source maps

AutoprefixerKeys.inlineSourceMap in Assets := true

To include all CSS files for post processing

includeFilter in autoprefixer := GlobFilter("*.css"),

You also have to use npm in order to install required dependencies. Modify your package.json (in root):

{
  "dependencies": {
	"autoprefixer": "^6.3.0",
	"postcss-cli": "^2.4.0"
  }
}

or invoke:

npm install postcss-cli@">=2.4.0" autoprefixer@">=6.3.0" --save

If you receive duplicate map errors when using incombination with LESS, turn sourceMapping off.

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