pre-commit

#!/usr/bin/env ruby

# If errors spotted return true
def check_file_size!(path, file)
  if file.lines.size > 150
    puts "[FILE SIZE][#{path}] MAX: 150 lines"
    return true
  end
end

# if error spotted return true
def check_lines_length!(path, file)
  any_errors = false
  file.lines.each_with_index do |line, index|
    next unless line.size > 100
    error_msg = "MAX: 100 chars"
    puts "[LINE LENGTH][#{path}:#{index}] #{error_msg}"
    any_errors = true
  end
  return any_errors
end

def check_files_commited
  puts "[pre-commit] Checking files commited ..."
  any_errors = false
  git_root = `git rev-parse --show-toplevel`.strip
  changed_files_paths = `git diff --cached --name-only --diff-filter=ACM`.split("\n").map(&:strip)
  changed_files_paths.each do |path|
    next if path.size == 0
    full_path = File.join(git_root, path)
    file = File.read(full_path)
    any_errors ||= check_file_size!(path, file)
    any_errors ||= check_lines_length!(path, file)
  end
  if any_errors
    puts "[pre-commit] Fix errors above before commiting changes"
    exit 1
  else
    puts "[pre-commit] GJ!"
  end
end
check_files_commited