Calculate the diff of a PR

cloc_pr.rb

#!/usr/bin/env ruby

# Count lines of code in a pull request
# Usage:
#   ./b/cloc_pr 22621
#
#   Code: +1212 / -208
#   Blank Lines: +241 / -18
#   Files: +17 / -0
#   Modified Files: 38
#   Comments: +287 / -18
#

def count_lines(pull_number)
  diff = `gh pr diff #{pull_number} --color=never`

  # Initialize counters
  data = {
    loggers_added: 0,
    code_lines_added: 0,
    code_lines_removed: 0,
    blank_lines_added: 0,
    blank_lines_removed: 0,
    files_added: 0,
    files_removed: 0,
    modified_files: 0,
    comment_lines_added: 0,
    comment_lines_removed: 0
  }

  # Analyze the diff
  diff.each_line do |line|
    if line =~ /\+\s*#/
      data[:comment_lines_added] += 1
    elsif line =~ /-\s*#/
      data[:comment_lines_removed] += 1
    elsif line =~ /\+\s*logger\./
      data[:loggers_added] += 1
    elsif line.strip == '+'
      data[:blank_lines_added] += 1
    elsif line.strip == '-'
      data[:blank_lines_removed] += 1
    elsif line.start_with?('--- /dev/null')
      data[:files_added] += 1
    elsif line.start_with?('+++ b/dev/null')
      data[:files_removed] += 1
    elsif line.start_with?('+++ b/')
      data[:modified_files] += 1
    elsif line.start_with?('+')
      data[:code_lines_added] += 1
    elsif line.start_with?('-')
      data[:code_lines_removed] += 1
    end
  end

  data
end

def minus(s) = "\e[1m\e[31m-#{s}\e[0m"
def plus(s) = "\e[1m\e[32m+#{s}\e[0m"

# Usage
pull_number = ARGV[0]
data = count_lines(pull_number)

puts "Code: #{plus data[:code_lines_added]} / #{minus data[:code_lines_removed]}"
puts "Blank Lines: #{plus data[:blank_lines_added]} / #{minus data[:blank_lines_removed]}"
puts "Files: #{plus data[:files_added]} / #{minus data[:files_removed]}"
puts "Modified Files: #{data[:modified_files]}"
puts "Comments: #{plus data[:comment_lines_added]} / #{minus data[:comment_lines_removed]}"

def minus(s) = "\e[1m\e[31m-#{s}\e[0m"
def plus(s) = "\e[1m\e[32m+#{s}\e[0m"

# Usage
pull_number = ARGV[0]
data = count_lines(pull_number)

puts "Code: #{plus data[:code_lines_added]} / #{minus data[:code_lines_removed]}"
puts "Blank Lines: #{plus data[:blank_lines_added]} / #{minus data[:blank_lines_removed]}"
puts "Files: #{plus data[:files_added]} / #{minus data[:files_removed]}"
puts "Modified Files: #{data[:modified_files]}"
puts "Comments: #{plus data[:comment_lines_added]} / #{minus data[:comment_lines_removed]}"

@oinak Thank you! I've updated the gist.