Podfile post hook

Podfile

post_install do |installer_representation|
    workDir = Dir.pwd
    
    xcconfigFilesPath = "#{workDir}/Pods/Target Support Files/Pods/Pods.*.xcconfig"
    xcconfigFiles = Dir[xcconfigFilesPath]
    
    xcconfigFiles.each do |xcconfigFilename|
        next if File.directory? xcconfigFilename
        puts "----------- Post hook will modify #{xcconfigFilename}"
        
        xcconfig = File.read(xcconfigFilename)
        newXcconfig = xcconfig
        
        prefix = "PODS_"
        regexString = "^(?!#{prefix})(.*)( = .*)$"
        regex = /#{regexString}/
        keys = xcconfig.scan(regex)
        keys.each do |row|
            key = row[0]
            pods_key = prefix + key
            newXcconfig = newXcconfig.sub(key, pods_key)
        end
        
        newXcconfig += "\n\n\n\n// Create association, just in case the the values are not overriden anywhere else\n// If you need to override the following xcconfig keys, make sure to add the respective `POD_` prefixed key\n"
        keys.each do |row|
            key = row[0]
            next if keys_to_keep_intact.include? key
            newXcconfig += key + " = $(inherited) $#{prefix + key}\n"
        end
        
        newXcconfig = xcconfig_string_modifier_hook(newXcconfig)
        
        File.open(xcconfigFilename, "w") { |file| file << newXcconfig }
        
        puts "-----------"
    end
end

# An array with the keys that shouldn't be mofidied,
# because you are modifying it yourself and is
# including the respective `PODS_` key
def keys_to_keep_intact
    return ["OTHER_LDFLAGS"]
end

def xcconfig_string_modifier_hook(string)
    # Remove reference to Reveal lib otherwise it will fail when building for device
    string = string.sub(" -framework \"Reveal\"", "")
    
    return string
end