54 lines
1.5 KiB
Ruby
Executable File
54 lines
1.5 KiB
Ruby
Executable File
#!/usr/bin/env ruby
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require 'find'
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require 'optparse'
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options = {}
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OptionParser.new do |opts|
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opts.banner = "Usage: clean-header-guards [options]"
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opts.on("--prefix [PREFIX]", "Append a header prefix to all guards") do |prefix|
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options[:prefix] = prefix
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end
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end.parse!
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IgnoredFilenamePatterns = [
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# ignore headers which are known not to have guard
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/WebCorePrefix/,
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/ForwardingHeaders/,
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%r|bindings/objc|,
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/vcproj/, # anything inside a vcproj is in the windows wasteland
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# we don't own any of these headers
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%r|icu/unicode|,
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%r|platform/graphics/cairo|,
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%r|platform/image-decoders|,
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/config.h/ # changing this one sounds scary
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].freeze
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IgnoreFileNamesPattern = Regexp.union(*IgnoredFilenamePatterns).freeze
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Find::find(".") do |filename|
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next unless filename =~ /\.h$/
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next if filename.match(IgnoreFileNamesPattern)
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File.open(filename, "r+") do |file|
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contents = file.read
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match_results = contents.match(/#ifndef (\S+)\n#define \1/s)
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if match_results
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current_guard = match_results[1]
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new_guard = File.basename(filename).sub('.', '_')
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new_guard = options[:prefix] + '_' + new_guard if options[:prefix]
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contents.gsub!(/#{current_guard}\b/, new_guard)
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else
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puts "Ignoring #{filename}, failed to find existing header guards."
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end
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tmp_filename = filename + ".tmp"
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File.open(tmp_filename, "w+") do |new_file|
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new_file.write(contents)
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end
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File.rename tmp_filename, filename
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end
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end
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