Use array args instead of string args for system command

README.md

@@ -35,13 +35,22 @@ Rails.application.config.dartsass.builds = {
 
 The hash key is the relative path to a Sass file in `app/assets/stylesheets/` and the hash value will be the name of the file output to `app/assets/builds/`.
 
+If both the hash key and the hash value are directories instead of files, it configures a directory to directory compliation, which compiles all public Sass files whose filenames do not start with underscore (`_`).
+
+```ruby
+# config/initializers/dartsass.rb
+Rails.application.config.dartsass.builds = {
+  "." => "."
+}
+```
+
 ## Configuring build options
 
-By default, sass is invoked with `--style=compressed --no-source-map`. You can adjust these options by overwriting `Rails.application.config.dartsass.build_options`.
+By default, sass is invoked with `["--style=compressed", "--no-source-map"]`. You can adjust these options by overwriting `Rails.application.config.dartsass.build_options`.
 
 ```ruby
 # config/initializers/dartsass.rb
-Rails.application.config.dartsass.build_options << " --quiet-deps"
+Rails.application.config.dartsass.build_options << "--no-charset" << "--quiet-deps"
 ```
 
 ## Importing assets from gems

dartsass-rails.gemspec

@@ -14,7 +14,7 @@ Gem::Specification.new do |spec|
     "rubygems_mfa_required" => "true"
   }
 
-  spec.files = Dir["{lib,exe}/**/*", "MIT-LICENSE", "LICENSE-DEPENDENCIES", "Rakefile", "README.md"]
+  spec.files = Dir["{lib,exe}/**/*", "MIT-LICENSE", "Rakefile", "README.md"]
   spec.bindir = "exe"
   spec.executables << "dartsass"
 

lib/dartsass/engine.rb

@@ -4,6 +4,6 @@ module Dartsass
   class Engine < ::Rails::Engine
     config.dartsass = ActiveSupport::OrderedOptions.new
     config.dartsass.builds = { "application.scss" => "application.css" }
-    config.dartsass.build_options = "--style=compressed --no-source-map"
+    config.dartsass.build_options = ["--style=compressed", "--no-source-map"]
   end
 end

lib/tasks/build.rake

@@ -4,31 +4,31 @@ CSS_BUILD_PATH = Rails.root.join("app/assets/builds")
 
 def dartsass_build_mapping
   Rails.application.config.dartsass.builds.map { |input, output|
-    "#{Shellwords.escape(CSS_LOAD_PATH.join(input))}:#{Shellwords.escape(CSS_BUILD_PATH.join(output))}"
-  }.join(" ")
+    "#{CSS_LOAD_PATH.join(input)}:#{CSS_BUILD_PATH.join(output)}"
+  }
 end
 
 def dartsass_build_options
-  Rails.application.config.dartsass.build_options
+  Rails.application.config.dartsass.build_options.map(&:strip)
 end
 
 def dartsass_load_paths
-  [ CSS_LOAD_PATH ].concat(Rails.application.config.assets.paths).map { |path| "--load-path #{Shellwords.escape(path)}" }.join(" ")
+  [ CSS_LOAD_PATH ].concat(Rails.application.config.assets.paths).flat_map { |path| ["--load-path", path.to_s] }
 end
 
 def dartsass_compile_command
-   "#{EXEC_PATH} #{dartsass_build_options} #{dartsass_load_paths} #{dartsass_build_mapping}"
+  [ RbConfig.ruby, EXEC_PATH ].concat(dartsass_build_options).concat(dartsass_load_paths).concat(dartsass_build_mapping)
 end
 
 namespace :dartsass do
   desc "Build your Dart Sass CSS"
   task build: :environment do
-    system dartsass_compile_command, exception: true
+    system(*dartsass_compile_command, exception: true)
   end
 
   desc "Watch and build your Dart Sass CSS on file changes"
   task watch: :environment do
-    system "#{dartsass_compile_command} -w", exception: true
+    system(*dartsass_compile_command, "--watch", exception: true)
   end
 end
 

lib/tasks/install.rake

@@ -1,6 +1,6 @@
 namespace :dartsass do
   desc "Install Dart Sass into the app"
   task :install do
-    system "#{RbConfig.ruby} ./bin/rails app:template LOCATION=#{File.expand_path("../install/dartsass.rb", __dir__)}", exception: true
+    system RbConfig.ruby, "./bin/rails", "app:template", "LOCATION=#{File.expand_path("../install/dartsass.rb", __dir__)}", exception: true
   end
 end