coderay_colorize

#!/usr/bin/env ruby
# Source: https://gist.github.com/skanev/0eeb943e3111a1df55fd
# This hardcodes the path to ruby to avoid interference from rvm
#
# Usage: add the following to .gitconfig
#
#     [core]
#         pager = /path/to/git-diff-syntax-highlight.rb --highlight | less -F -X
#         # The -F -X is optional
#
# Installing Dependencies:
#
#    gem install --user term-ansicolor coderay
require 'coderay'
require 'term/ansicolor'
require 'optparse'
require_relative 'vim'


# --- Parsing git diffs ------------------------------------------------------

FORMATS = {
  'Gemfile' => :ruby,
  'rb' => :ruby,
  'c' => :c,
  'h' => :c,
  'cpp' => :cpp,
  'cxx' => :cpp,
  'hpp' => :cpp,
  'clj' => :clojure,
  'css' => :css,
  'erb' => :erb,
  'go' => :go,
  'java' => :java,
  'js' => :javascript,
  'json' => :json,
  'php' => :php,
  'html' => :php,
  'lua' => :lua,
  'py' => :python,
  'sass' => :sass,
  'scss' => :scss,
  'sql' => :sql,
  'xml' => :xml,
  'yml' => :yaml,
  'yaml' => :yaml,
}

CACHED_OBJECTS = {}

if ARGV.length != 1
    puts "Wrong argument count: #{ARGV}"
    exit 1
end
path = ARGV[0]
code = File.read(path)
format = FORMATS[path[/(\w+)$/, 1]]
code = CodeRay.scan(code, format).terminal if format
puts code