Created
June 29, 2010 04:55
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#!/usr/bin/env ruby -w | |
# R Kumar | |
# 2010-06-29 10:24 | |
require 'fileutils' | |
require 'tempfile' | |
# edits given text using EDITOR | |
# @param [String] text to edit | |
# @return [String, nil] edited string, or nil if no change | |
def edit_text text | |
ed = ENV['EDITOR'] || "vim" | |
temp = Tempfile.new "tmp" | |
puts temp | |
File.open(temp,"w"){ |f| f.write text } | |
mtime = File.mtime(temp.path) | |
system("#{ed} #{temp.path}") | |
newmtime = File.mtime(temp.path) | |
newstr = nil | |
if mtime < newmtime | |
# check timestamp, if updated .. | |
newstr = "" | |
File.open(temp,"r"){ |f| f.each {|r| newstr << r } } | |
#puts "I got: #{newstr}" | |
else | |
#puts "user quit without saving" | |
end | |
return newstr | |
end | |
puts "Enter a few lines and press Ctrl-d" | |
str = $stdin.read | |
puts | |
puts edit_text str if str |
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