findCppFilePathCaseConflicts.rb

#!/usr/bin/env ruby
# encoding: utf-8 
#
#Usage: ruby findCppFilePathCaseConflicts.rb <hFilePathLists.txt> <sourceFilePathLists.txt>

#首先，加载全部.h头文件的清单：
hFilePaths = []
File.open(ARGV[0]).each { |line|
    hFilePaths.push(line)
}

PATTERN1 = /#include[ ]*"([^"]+)"/
PATTERN2 = /#include[ ]*<([^>]+)>/

def detectIncludedHeaderFileCaseConflict(hFilePaths, includedHeaderFile)
    realIncludeFileCaseSensitiveName = nil
    hFilePaths.each {|hFilepath|
        hFilepath = hFilepath.strip
        #先全部转为小写进行匹配，如果命中，则进行大小写敏感的再次匹配
        if hFilepath.downcase.end_with? includedHeaderFile.downcase then
            hFilepathMatchedPart = hFilepath[-includedHeaderFile.length .. -1]
            if hFilepathMatchedPart!= includedHeaderFile then
                return hFilepathMatchedPart
            end
            break
        end
    }
    realIncludeFileCaseSensitiveName
end

#然后，遍历所有待检查的源代码文件：
File.open(ARGV[1]).each { |sourceFilePath|
    findFirstIncludeLine = false
    lineNo = 1
    sourceFilePath = sourceFilePath.strip
    File.open(sourceFilePath).each { |line|
        begin
            m1 = PATTERN1.match(line)
        rescue => detail
            m1 = PATTERN1.match(line.encode("utf-8", :invalid => :replace, :undef => :replace))
        end
        if m1 then
            if not findFirstIncludeLine then findFirstIncludeLine=true end
            includedHeaderFile = m1[1]
            realIncludeFileCaseSensitiveName = detectIncludedHeaderFileCaseConflict(hFilePaths, includedHeaderFile)
            if realIncludeFileCaseSensitiveName then
                puts "#{sourceFilePath}:#{lineNo} => #{realIncludeFileCaseSensitiveName}"
            end
        else
            begin
                m2 = PATTERN2.match(line)
            rescue => detail
                m2 = PATTERN2.match(line.encode("utf-8", :invalid => :replace, :undef => :replace))
            end
            if m2 then
                if not findFirstIncludeLine then findFirstIncludeLine=true end
                includedHeaderFile = m2[1]
                realIncludeFileCaseSensitiveName = detectIncludedHeaderFileCaseConflict(hFilePaths, includedHeaderFile)
                if realIncludeFileCaseSensitiveName then
                    puts "#{sourceFilePath}:#{lineNo} => #{realIncludeFileCaseSensitiveName}"
                end
            end
        end
        lineNo = lineNo + 1
    }
}