Clean incidental code directories

cleanup.rb

#!/usr/bin/env ruby
# Usage: cleanup <dir> [dir] ...
# Summary: Removes incidental files in code dirs
# Help: Recursively removes log files and does git garbage collection
# for the given directory.

dirs = ARGV
if !dirs.first
  puts "ERROR: must specify directory"
  system "help cleanup"
  abort
end

if %w(-h --help).include?(ARGV.first)
  system "help cleanup"
  abort
end

require 'fileutils'

class Integer
  def to_megabytes
    to_f / 1000 / 1000
  end

  def kilobytes
    self * 1024
  end
end

def system_with_echo(*args)
  puts args.join(' ')
  system(*args)
end

total_size = 0
count = 0

dirs.each do |dir|
  this_dir = File.expand_path(dir)

  pattern = File.join(this_dir, '**', 'log', '*.log')
  puts "Cleaning log files matching #{pattern}"
  Dir.glob(pattern) do |match|
    size = File.size(match)
    total_size += size
    puts "  %9i MiB #{match}" % size.to_megabytes
    FileUtils.rm(match)
    count += 1
  end

  puts "Deleted #{count} files totalling %i MiB" % total_size.to_megabytes

  puts

  total_size = 0
  count = 0
  puts "Garbage collecting all git projects..."
  Dir.glob(File.join(this_dir, '**', '.git')) do |match|
    repo = File.dirname(match)
    before = `du -ks #{match}`.to_i.kilobytes
    #  --aggressive
    system("cd #{repo} && git gc --quiet --prune; cd #{File.expand_path(this_dir)}")
    after = `du -ks #{match}`.to_i.kilobytes
    size = before - after
    total_size += size
    puts "  %9i MiB #{repo}" % size.to_megabytes
    count += 1
  end
end
puts "Garbage collected #{count} projects totalling %i MiB" % total_size.to_megabytes

This is a super old command, still works, but plenty of modern improvements to be made.

Also the help stuff only works if it's run within sub.