tools/include_optimize.rb

   1 #!/usr/bin/ruby -w
   2
   3 def write_file_without_lines(source, lines, without_lines)
   4   out = File.new(source, 'w')
   5   lines.each_with_index { |v, i|
   6     if without_lines.member? i then
   7       out.print "//", v
   8     else
   9       out.print v
  10     end
  11   }
  12   out.close()
  13 end
  14
  15 def optimize(source, target)
  16   lines = File.new(source).readlines()
  17   includes = []
  18   lines.each_with_index { |v, i|
  19     if v =~ /^#include/ then
  20       # puts v
  21       includes << i
  22     end
  23   }
  24
  25   unneeded_includes = []
  26
  27   includes.each{|i|
  28     # puts i
  29     write_file_without_lines(source, lines, [i])
  30
  31     ret = system("scons", "-u", target)
  32     if ret then
  33       puts "INCUNNEEDED #{source} #{lines[i].chop}"
  34       unneeded_includes << i
  35     end
  36   }
  37
  38   write_file_without_lines(source, lines, unneeded_includes)
  39 end
  40
  41 ARGV.each{ |filename|
  42   source = filename
  43   target = "build/#{filename.gsub(/\..pp$/, '.o')}"
  44   puts "#{source} => #{target}"
  45
  46   optimize(source, target)
  47 }
  48
  49 # EOF #