opal · Oct 21, 2014 · Oct 21, 2014
Showing with 66 additions and 4 deletions.

+4 −3 lib/opal/cli.rb

+1 −1 lib/opal/cli_options.rb

+1 −0 lib/opal/cli_runners.rb

+60 −0 lib/opal/cli_runners/apple_script.rb
diff --git a/lib/opal/cli.rb b/lib/opal/cli.rb
@@ -70,9 +70,10 @@ def run
 
     def runner
       @runner ||= case @runner_type
-                  when :server;    CliRunners::Server.new(output, port)
-                  when :nodejs;    CliRunners::Nodejs.new(output)
-                  when :phantomjs; CliRunners::Phantomjs.new(output)
+                  when :server;      CliRunners::Server.new(output, port)
+                  when :nodejs;      CliRunners::Nodejs.new(output)
+                  when :phantomjs;   CliRunners::Phantomjs.new(output)
+                  when :applescript; CliRunners::AppleScript.new(output)
                   else raise ArgumentError, @runner_type.inspect
                   end
     end

diff --git a/lib/opal/cli_options.rb b/lib/opal/cli_options.rb
@@ -79,7 +79,7 @@ def initialize
         options[:compile] = true
       end
 
-      on('--runner RUNNER', %w[nodejs server phantomjs], 'Choose the runner: nodejs (default), server') do |runner|
+      on('-R', '--runner RUNNER', %w[nodejs server phantomjs applescript], 'Choose the runner: nodejs (default), server') do |runner|
         options[:runner] = runner.to_sym
       end
 

diff --git a/lib/opal/cli_runners.rb b/lib/opal/cli_runners.rb
@@ -5,6 +5,7 @@ class RunnerError < StandardError
   end
 end
 
+require 'opal/cli_runners/apple_script'
 require 'opal/cli_runners/phantomjs'
 require 'opal/cli_runners/nodejs'
 require 'opal/cli_runners/server'
diff --git a/lib/opal/cli_runners/apple_script.rb b/lib/opal/cli_runners/apple_script.rb
@@ -0,0 +1,60 @@
+require 'opal/cli_runners'
+
+module Opal
+  module CliRunners
+    class AppleScript
+      def initialize(output)
+        unless system('which osalang > /dev/null')
+          raise MissingJavaScriptSupport, 'JavaScript Automation is only supported by OS X Yosemite and above.'
+        end
+
+        @output ||= output
+      end
+      attr_reader :output
+
+      def puts(*args)
+        output.puts(*args)
+      end
+
+      def run(code, argv)
+        require 'tempfile'
+        tempfile = Tempfile.new('opal-applescript-runner-')
+        # tempfile = File.new('opal-applescript-runner.js', 'w') # for debugging
+        tempfile.write code
+        tempfile.close
+        successful = system_with_output('osascript', '-l', 'JavaScript', tempfile.path , *argv)
+
+      rescue Errno::ENOENT
+        raise MissingAppleScript, 'AppleScript is only available on Mac OS X.'
+      end
+
+      # Let's support fake IO objects like StringIO
+      def system_with_output(env, *cmd)
+        io_output = IO.try_convert(output)
+        return system(env,*cmd) if io_output
+
+        if RUBY_PLATFORM == 'java'
+          # JRuby has issues in dealing with subprocesses (at least up to 1.7.15)
+          # @headius told me it's mostly fixed on master, but while we wait for it
+          # to ship here's a tempfile workaround.
+          require 'tempfile'
+          require 'shellwords'
+          tempfile = Tempfile.new('opal-applescript-output')
+          system(env,cmd.shelljoin+" > #{tempfile.path}")
+          captured_output = File.read tempfile.path
+          tempfile.close
+        else
+          require 'open3'
+          captured_output, status = Open3.capture2(env,*cmd)
+        end
+        output.write captured_output
+      end
+
+      class MissingJavaScriptSupport < RunnerError
+      end
+
+      class MissingAppleScript < RunnerError
+      end
+    end
+  end
+end