Checks if your commit / branch name as a specific pattern

prepare-commit-msg

#!/usr/bin/env ruby

# Get the commit type.
# We only want this hook to take effect on message commit.
commit_type = ARGV[1]
if commit_type != "message"
  exit 0
end

# The pattern we are looking
# for into the commit / branchname
$pattern = /web-/i    # insensitive

# Loading the commit file
message_file = ARGV[0]
message = File.read(message_file).strip

# Finding the actual branchname
branchname = `git branch --no-color 2> /dev/null`[/^\* (.+)/, 1].to_s

# Colorizing, for a pretty output
def colorize(text, color_code)
  "\e[#{color_code}m#{text}\e[0m"
end

def red(text); colorize(text, 31); end
def green(text); colorize(text, 32); end
def yellow(text); colorize(text, 33); end

# Finding the pattern within a string
def findTicket string
	if m =  string.match($pattern)
		return true
	else
		return false
	end
end

# If we find the issue number in the
# commit, we accept it
if findTicket message
	puts green("Thanks for putting your issue number into the commit :)")
  exit 0
# We could not find the issue number
# so we check for the branchname
elsif findTicket branchname
	message = branchname + " :: " + message
	File.open(message_file, 'w') {|f| f.write message }
	puts yellow("We found the issue '#{branchname}' within your branch name and was added automatically to your commit.")
  exit 0
# If none of the above matches
# We reject the commit
else
	puts red("!!! Your commit was rejected !!!")
	puts red("I could not find any issue # in your commit / branch. Please provide one.")
	exit 1
end