/gnome_terminals_4_rails.yml

--- 
gnome_terminals_4_rails: |-
  #!/usr/bin/env ruby

  

  # A Ruby script that generates a bash script which automates the opening

  # of terminals in Gnome.

  

  def assemble_script 

  	script =  $script1 + $listing + $script2 + 

  		"echo #{$commands} \n\n#{$commands}" +

  		$error_message

  	File.open(ARGV[0], 'w') do |f|

  		f.puts script

  	end

  end

  

  def display_help_and_exit

  	puts <<-EOF

  	Gnome Terminals 4 Rails. 

  	

  	USAGE: terminals4rails file_name command1 command2 ... "title":"exec"

  	

  	file_name: File name of the generated bash script.

  	tilte: Title of the terminal tab

  	exec: bash command. GIGO

  	

  	Built-in commands:

  		bash         The Bash

  		vim          Vim editor

  		vimNERD      Vim with NERDTree, if pre-installed

  		server       Start script/server

  		autospec     Start autospect

  	EOF

  	

  	exit

  end

  

  # Display helf if there are less than 2 arguments.

  display_help_and_exit if ARGV.length < 2 

  ARGV.each { |arg| display_help_and_exit if arg == "--help" or arg == "-h" }

  

  

  # Start the core script 

  

  $script1 = <<-EOF

  #!/bin/bash

  

  # Rails Terminals for Rails and Gnome

  # A simple script that opens a Gnome terminal with titled tabs.

  

  # Tabs with following bash commands:

  EOF

  

  $script2 = <<-EOF

  

  # USAGE: terminal4rails.sh working_dir

  

  dir=$1	# The first argument is the path of the working directory.

  err=0	# If err becomes negative, an error message is generated in the end. 

  

  if [ -z $dir ] || [ ! -d $dir ]; then

  	echo "Please specify a working directory as the argument"

  	exit

  fi

  	

  # If the argument is a relative path, then augment it with 

  # the current dir.

  if [ ${dir:0:1} != '~' ] && [ ${dir:0:1} != '/' ]; then

  	dir=`pwd`'/'$dir

  fi

  

  echo "Working directory: $dir"

  

  EOF

  

  $error_message =<<-EOF

  

  if [ $err -lt 0 ]; then

  	echo "WARNING: Some tabs could not be opened."

  fi

  EOF

  

  $commands="gnome-terminal --working-directory=$dir --geometry=112x30 "

  

  execs = Array.new 

  

  ARGV[1..-1].each do |arg|

  	case arg

  	when "bash" then exec="bash"; title="Bash"

  	when "vim" then exec="vim"; title="Vim"

  	when "vimNERD" then exec='vim +NERDTree'; title="Vim"

  	when "server" then exec="script/server && bash" 

  		title="script/server"

  	when "autospec" then exec='autospec'; title="autospec"

  	else 

  		if arg =~ /.+:.+/ 

  			title, exec = arg.split(":")

  		else raise "ERROR: Input is not recognised."

  		end

  	end

  

  	first_exec = exec.split(" ")[0]

  	if first_exec[0] == '"' or first_exec[0] == "'"

  		first_exec = first_exec[1..-1]

  	end

  	script_title = title.downcase.gsub(/\W/, "_" )

  

  	$script2 += <<-EOF

  	#{script_title}_t="#{title}"

  	check_exec=(`whereis -b #{first_exec}`)	# Check whether binary exist

  

  	if [ ${#check_exec[@]} -gt "1" ]; then

  		echo "#{title} found in ${check_exec[1]}."

  		#{script_title}_e="bash -c '#{exec}'"

  	elif [ -x $dir/#{first_exec} ]; then

  		echo "#{title} found in "$dir"#{first_exec}."

  		#{script_title}_e="bash -c '#{exec}'"

  	else

  		#{script_title}_e="echo"	# Closes the tab w/o action.

  		err=$(( $err - 1 ))

  		echo "#{first_exec} not found."

  	fi

  	

  	EOF

  

  	execs << [exec, script_title] 

  end

  

  $listing = ""

  

  execs.each do |exec, title|

  	$commands += "--tab -t $#{title}_t -e \"$#{title}_e\" "

  	$listing += "# * #{exec}\n"  

  end	

  

  # Ask for permission to overwrite an existing file.

  if File.exists? ARGV[0] then 

  	print "Do you want to overwrite the file #{ARGV[0]} (y/n): "

  	answer = $stdin.gets

  	if answer.downcase[0] == "y" then 

  		puts "Script is assembled."

  		assemble_script

  	else 

  		puts "Script terminates without writing."

  		exit

  	end

  else 

  	puts "Script is assembled."

  	assemble_script

  end