svn diff count

#!/usr/bin/env ruby -w

# simple script to count row changes in a svn repo

def status dir=''
    files = []
    svn = `svn status #{dir}`
    svn.split("\n").each do |line|
        next if line =~ /^[^A-Z]/
        line =~ /^[A-Z]\s+.*\s+(.+)$/
        files << $1
    end
    files
end

files = []

silent = false;
if ARGV.first == '-s'
    silent = true
    ARGV.delete_at 0
end 

unless ARGV.empty?
    ARGV.each do |file|
        if File::directory? file
            files += status file
        else
            files << file
        end
    end
else 
    files += status
end

added = 0
removed = 0
done = [];

files.each do |file|
    next if done.include? file
    next if File.directory? file

    plus, minus = 0, 0
    
    diff = `svn diff --diff-cmd diff #{file}`
    
    diff.split("\n").each do |line|
        next unless line =~ /^(\+|\-)/

        plus += 1 if line =~ /^\+[^\+\-]/
        minus += 1 if line =~ /^\-[^\+\-]/
    end

    unless silent
        puts "%s:" % [file]
        puts "  Lines added: #{plus}"
        puts "  Lines removed: #{minus}"
    end

    added += plus
    removed += minus
    done << file
end

puts unless silent
puts "Total:"
puts "  Lines added: #{added}"
puts "  Lines removed: #{removed}"