Class: Cocaine::CommandLine::PosixRunner

Inherits:
Object
  • Object
show all
Defined in:
lib/cocaine/command_line/runners/posix_runner.rb

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.available? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/cocaine/command_line/runners/posix_runner.rb', line 6

def self.available?
  begin
    require 'posix/spawn'
    true
  rescue LoadError => e
    false
  end
end

.supported? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/cocaine/command_line/runners/posix_runner.rb', line 15

def self.supported?
  available? && !Cocaine::CommandLine.java?
end

Instance Method Details

#call(command, env = {}) ⇒ Object 



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# File 'lib/cocaine/command_line/runners/posix_runner.rb', line 23

def call(command, env = {})
  input, output = IO.pipe
  pid = spawn(env, command, :out => output)
  output.close
  result = ""
  while partial_result = input.read(8192)
    result << partial_result
  end
  waitpid(pid)
  input.close
  result
end

#supported? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/cocaine/command_line/runners/posix_runner.rb', line 19

def supported?
  self.class.supported?
end