script for git commit with preview of file changes, last 5 commits and enforcing of ticket prefix

gc.rb

#!/usr/bin/env ruby

require 'open3'
require 'colorize'

unless Dir.exists?('.git')
  puts 'No .git directory'.red
  exit
end

def run(what, silent=false)
  puts what.green unless silent
  stdin, stdout, stderr, wait_thread = Open3.popen3(what)
  stderr.each_line do |line|
    print line.red
  end
  stdout.each_line do |line|
    print line unless silent
  end
end

def cputs(data)
  puts data.split("\n").map{ |el| " #{el}" }.join("\n")
end

run 'git add -A', true

status = `git status`.chomp
if status.index('nothing to commit')
  puts status.yellow
  exit
else
  puts 'Modified files:'
  cputs `git status`.split("\n").drop(4).map{ |el| el.sub(/^\t/,'') }.join("\n").yellow
  puts '---'
  puts 'Last 3 commits'
  cputs `git log -3 --reverse --pretty=format:'%Cred%h%Creset -%C(yellow)%d%Creset %s %Cgreen(%cr) %C(bold blue)<%an>%Creset' --abbrev-commit`
  orig_files = `find . -name '*.orig'`.red
  if orig_files.split("\n").length > 0
    puts '---'
    puts 'orig tmp git merge files'
    cputs orig_files
  end
  puts '---'
end

# ticket_name = `git log -1 --pretty=%B`.split(':')[0]
# ticket_name = '' unless ticket_name.length < 15
branch = `git rev-parse --abbrev-ref HEAD`.to_s.chomp.sub(/\*\s/,'')
ticket_name = branch
print "Branch: #{branch}, ticket: #{ticket_name.red} / ENTER to type new branch name.\nMessage: "
commit_message = STDIN.gets.chomp

if commit_message.length == 0
  print "Ticket name: "
  ticket_name = STDIN.gets.chomp
  if ticket_name.length == 0
    puts 'Please enter new ticket name'.red
    exit
  else
    print "Message: "
    commit_message = STDIN.gets.chomp
  end
end

ticket_name.gsub!(/[^\w\-_]/,'')

if commit_message == ''
  puts 'Message is required'.red
  exit
end

run "git commit -m '#{ticket_name}: #{commit_message}'"

usage.txt

chmod +x gc.rb
./gc.rb

no options required

gem install colorize