Class: Runner

Inherits:
Object
  • Object
show all
Defined in:
app/ports/runner.rb

Overview

Motiro - A project tracking tool

Copyright (C) 2006-2008  Thiago Arrais

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation; either version 3 of the License, or
any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU Affero General Public License for more details.

You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

Instance Method Summary collapse

Constructor Details

#initialize(process_creator = IO) ⇒ Runner

Returns a new instance of Runner.



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# File 'app/ports/runner.rb', line 20

def initialize(process_creator=IO)
  @creator = process_creator
end

Instance Method Details

#run(command, input = '', env = {}) ⇒ Object 



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# File 'app/ports/runner.rb', line 24

def run(command, input='', env={})
  commons = {}
  env.each_key do |k|
    commons[k] = ENV[k] if ENV.has_key?(k)
  end
  ENV.update env

  process = @creator.popen(command, 'r+')
  begin
    process << input
    process.flush
  rescue
    #ignore i/o errors
  end

  env.each_key do |k|
    ENV.delete k
  end
  commons.each do |k, v|
    ENV[k] = v
  end

  result = process.read
  process.close
  
  return result    
end