Class: Exercism::Rb::CommandRunner

Inherits:
Object
  • Object
show all
Defined in:
lib/exercism/rb/command_runner.rb

Instance Method Summary collapse

Constructor Details

#initialize(ui: UI.new) ⇒ CommandRunner

Returns a new instance of CommandRunner.



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# File 'lib/exercism/rb/command_runner.rb', line 8

def initialize(ui: UI.new)
  @ui = ui
end

Instance Method Details

#run(*args, chdir: nil) ⇒ Object

Raises:



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# File 'lib/exercism/rb/command_runner.rb', line 12

def run(*args, chdir: nil)
  printable = Shellwords.join(args)
  printable = "cd #{Shellwords.escape(chdir)} && #{printable}" if chdir
  @ui.command("$ #{printable}")

  ok = if chdir
         Dir.chdir(chdir) { system(*args) }
       else
         system(*args)
       end

  raise Error, "Command failed: #{Shellwords.join(args)}" unless ok

  true
end