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#! /usr/bin/env ruby
require "date"
dir = ARGV[0] || raise("ERROR: arg1 must be dir")
files_and_times = {}
Dir[File.join(dir, "*.patch")].sort.each do |filename|
dateline = `cat #{filename} | grep "Date:"`
datestr = dateline.split("Date:").last.strip
time = DateTime.parse datestr
files_and_times[filename] = time
end
count = 0
files_and_times.sort_by { |k, v| v }.each do |filename, time|
count += 1
_, patch_name = filename.split("-", 2)
new_filename = File.join(dir, sprintf("%4.4d-%s", count, patch_name))
comment = (filename == new_filename) ? "# " : ""
printf "%smv -f %s %s # %s\n", comment, filename, new_filename, time
end
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