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desc 'Compile engine assets - called via rake plugin:assets:precompile[plugin_name]'
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task 'plugin:assets:precompile', [:engine] do |t, args|
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# This task will generate assets for a plugin and namespace them in
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# plugin_name/public/assets/<plugin_name>. The generated manifest.yaml found
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# in the assets directory of the plugin is used to add the asset digest paths
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# to the Rails digests list in production.rb.
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#
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# The task expects a plugin to define their assets to precompile using SETTINGS.
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# This can be done via a settings yaml file or if the deinfition requires
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# complexity through the use of an initializer in the plugins engine.rb.
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#
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# Example: Simple Precompile List
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#
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# SETTINGS[:plugin_name] = {
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# :assets => {
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# :precompile => [
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# 'plugin_name/plugin.css',
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# 'plugin_name/plugin.js',
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# 'plugin_name/another_js_file.js
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# ],
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# }
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# }
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#
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# Example: Custom JS Compressor
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#
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# SETTINGS[:plugin_name] = {
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# :assets => {
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# :precompile => [
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# 'plugin_name/plugin.css',
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# 'plugin_name/plugin.js',
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# 'plugin_name/another_js_file.js
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# ],
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# :js_compressor => Uglifier.new(:mangle => false)
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# }
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# }
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module Foreman
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class PluginAssetsTask < Sprockets::Rails::Task
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attr_accessor :engine
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def initialize(engine_name)
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@engine = "#{engine_name.camelize}::Engine".constantize
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Rails.application.config.assets.precompile = SETTINGS[@engine.engine_name.to_sym][:assets][:precompile]
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Rails.application.assets.js_compressor = :uglifier
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super(Rails.application)
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end
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def compile
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with_logger do
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manifest.compile(assets)
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end
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end
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def environment
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env = Rails.application.assets
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Rails.application.config.assets.paths.each do |path|
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env.append_path path
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end
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env
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end
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def output
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File.join(@engine.root, 'public', 'assets')
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end
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def manifest_path
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File.join(output, @engine.engine_name, "#{@engine.engine_name}.json")
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end
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def manifest
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Sprockets::Manifest.new(index, output, manifest_path)
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end
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end
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end
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if args[:engine]
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# Partially load the Rails environment to avoid
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# the need of a database being setup
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Rails.application.initialize!(:assets)
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task = Foreman::PluginAssetsTask.new(args[:engine])
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task.compile
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else
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puts "You must specify the name of the plugin (e.g. rake plugin:assets:precompile['my_plugin'])"
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end
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end
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