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Class: Opal::CliRunners::AppleScript

Inherits:
Object
  • Object
  • Opal::CliRunners::AppleScript
show all
Defined in:
opal/lib/opal/cli_runners/apple_script.rb

Defined Under Namespace

Classes: MissingAppleScript , MissingJavaScriptSupport

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(output) ⇒ AppleScript

Returns a new instance of AppleScript

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# File 'opal/lib/opal/cli_runners/apple_script.rb', line 6
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

Instance Attribute Details

#exit_statusObject (readonly)

Returns the value of attribute exit_status

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# File 'opal/lib/opal/cli_runners/apple_script.rb', line 13
def exit_status
 @exit_status
end

#outputObject (readonly)

Returns the value of attribute output

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# File 'opal/lib/opal/cli_runners/apple_script.rb', line 13
def output
 @output
end

Instance Method Details

#puts(*args) ⇒ Object

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# File 'opal/lib/opal/cli_runners/apple_script.rb', line 15
def puts(*args)
 output.puts(*args)
end

#run(code, argv) ⇒ Object

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# File 'opal/lib/opal/cli_runners/apple_script.rb', line 19
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

#system_with_output(env, *cmd) ⇒ Object

Let's support fake IO objects like StringIO

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# File 'opal/lib/opal/cli_runners/apple_script.rb', line 32
def system_with_output(env, *cmd)
 if (io_output = IO.try_convert(output))
 system(env,*cmd)
 @exit_status = $?.exitstatus
 return
 end
 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}")
 @exit_status = $?.exitstatus
 captured_output = File.read tempfile.path
 tempfile.close
 else
 require 'open3'
 captured_output, status = Open3.capture2(env,*cmd)
 @exit_status = status.exitstatus
 end
 output.write captured_output
end

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