Module: Rubbish

Defined in:
lib/rubbish.rb

Constant Summary collapse

VERSION = 
'0.1.191210'
SHELL_VERSION = 
{bash: nil, fish: nil}

Class Method Summary collapse

Class Method Details

.method_missing(shell, *args, &block) ⇒ Object 



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# File 'lib/rubbish.rb', line 26

def self.method_missing(shell, *args, &block)
  if args.length.between?(0,2) and SHELL_VERSION.has_key? shell
    if minimum = SHELL_VERSION[shell]
      minimum = Gem::Version.new minimum
      if version = `#{shell} --version`.scan(/\d+\.\d+\.\d+/).first
        version  = Gem::Version.new version
        bumped = minimum.bump
        raise "Need #{shell} version ~> #{minimum}" unless version >= minimum and version < bumped
        # need to only check once
        SHELL_VERSION[shell] = nil
      else
        raise "Could not get the #{shell} version"
      end
    end
    return Rubbish.shell(shell.to_s, *args, &block)
  end
  super
end

.shell(sh, script = nil, read: true, &block) ⇒ Object 



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# File 'lib/rubbish.rb', line 5

def self.shell(sh, script=nil, read: true, &block)
  IO.popen(sh, (read)? 'w+' : 'w') do |psh|
    # No matter what, we know we're going to write first.
    writing = true
    if script
      # We were given the script, so we write it and close.
      psh.write script 
      psh.close_write
      writing = false
    end
    if block
      block.call(psh)
      # close if we were writing
      psh.close_write if writing
    end
    # Read if reading
    read = psh.read if read
  end
  read || $?.to_i==0
end