Pre-commit hook for RSpec

pre-commit

#!/usr/bin/env ruby

def bash_source(file)
  `bash -c "source #{file}"`
end

# Make sure to use RVM
user_rvm = "#{ENV['HOME']}/.rvm/scripts/rvm"
system_rvm = "/usr/local/rvm/scripts/rvm"

if File.exists?(user_rvm)
  bash_source user_rvm
elsif File.exists?(system_rvm)
  bash_source system_rvm
else
  puts "No RVM!"
  puts '***** COMMIT FAILED *****'
  exit 1
end

`rvm reload`

# Run RSpec showing results on stdout and writing them into a temporary file.
out_path = '__spec_results__'
system "rspec -c -fp -fp -o #{out_path}"

last_line = File.open(out_path).read.split("\n").last
File.delete out_path

failed = (last_line =~ /, 0 failures/).nil?
if failed
  puts '***** COMMIT FAILED *****'
  exit 1
end

This script should be placed in .git/hooks.