Class: Hadupils::Commands::WithTmpDir

Inherits:
SimpleCommand show all
Defined in:
lib/hadupils/commands.rb

Instance Attribute Summary

Attributes inherited from SimpleCommand

#params

Instance Method Summary collapse

Methods inherited from SimpleCommand

#initialize, run, #successful?

Constructor Details

This class inherits a constructor from Hadupils::Commands::SimpleCommand

Instance Method Details

#run ⇒ Object 



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# File 'lib/hadupils/commands.rb', line 161

def run
  # Runs provided subcommand with tmpdir and cleans up tmpdir on an exitstatus of zero
  if params.empty?
    $stderr.puts 'Yeeaaahhh... sooo... you failed to provide a subcommand...'
    [nil, 255]
  else
    # Let's create the tmpdir
    stdout, exitstatus = Hadupils::Commands::MkTmpFile.run ['-d']
    if successful? exitstatus
      tmpdir_path = Hadupils::Extensions::Dfs::TmpFile.tmpfile_path
      params.unshift({'HADUPILS_TMPDIR_PATH' => tmpdir_path})

      # Let's run the shell subcommand!
      stdout, exitstatus = Hadupils::Runners::Subcommand.run params

      if successful? exitstatus
        # Let's attempt to cleanup tmpdir_path
        stdout, exitstatus = Hadupils::Commands::RmFile.run ['-r', tmpdir_path]
      else
        $stderr.puts "Failed to run shell subcommand: #{params}"
      end
    end
    Hadupils::Extensions::Dfs::TmpFile.reset_tmpfile!
    [nil, exitstatus]
  end
end