pre-commit git hook, runs rspec iff branch is master

pre-commit

#!/usr/bin/env ruby

# pre-commit git hook
# will run rspec if and only if current branch is master
# script adapted from http://book.git-scm.com/5_git_hooks.html

def run_tests
  html_path = "/tmp/git_hook_spec_results.html"  
  `rspec -f p -f h -o #{html_path} spec` # run the spec. send progress to screen. save html results to html_path  

  # find out how many errors were found  
  html = open(html_path).read  
  examples = html.match(/(\d+) examples?/)[0].to_i rescue 0  
  failures = html.match(/(\d+) failures?/)[0].to_i rescue 0  
  pending = html.match(/(\d+) pending/)[0].to_i rescue 0  

  if failures.zero?  
    puts "0 failures! #{examples} run, #{pending} pending"  
  else  
    puts "\aDID NOT COMMIT YOUR FILES!"  
    puts "View spec results at #{File.expand_path(html_path)}"  
    puts  
    puts "#{failures} failures! #{examples} run, #{pending} pending"  
    exit 1  
  end
end



#get current_branch
list_of_branches =  `git branch`.split("\n")
current_branch = list_of_branches.find {|string| string.match /^\* /}.sub("* ", "")

if current_branch == 'master'
  puts "we are on branch master, running tests----"
  run_tests
  puts "---------------------------------end tests"
end