class GitUrl

    def self.pull url
        if(url.kind_of?(Array))
            url.each{|u| GitUrl.pull u}
        else
            puts ' '
            work_dir = get_work_dir(url)
            if(!Dir.exists?(work_dir))
                puts "git clone #{url} #{work_dir}"
                puts `git clone #{url} #{work_dir}`
            end
        
            Dir.chdir(work_dir) do
                puts "git pull (#{work_dir})"
                puts `git pull`
            end
        end
    end

    def self.build url 

        if(url.kind_of?(Array))
            url.each{|u| GitUrl.build u}
        else
            GitUrl.pull url
            puts "build #{url}"
            work_dir = get_work_dir(url)
            puts "work_dir #{work_dir}"

            Dir.chdir(work_dir) do
                puts "rake #{work_dir}"
                puts `rake`
                puts "rake clobber"
                puts `rake clobber`
            end
        end
    end

    def self.update_build_repo url
        local_dir = Environment.dev_root + "/build/" + get_relative_dir(url)
        if(!Dir.exists?(local_dir))
            puts "git clone #{url} #{local_dir}"
            puts `git clone #{url} #{local_dir}`
        end
        stags=''
        Dir.chdir(local_dir) do
            puts `git pull` 
        end
    end

    def self.build_tags url

        if(url.kind_of?(Array))
            url.each{|u| GitUrl.build_tags u}
        else
            puts "GitUrl.build_tags #{url}"
            local_dir = Environment.dev_root + "/build/" + get_relative_dir(url)
            if(!Dir.exists?(local_dir))
                puts "git clone #{url} #{local_dir}"
                puts `git clone #{url} #{local_dir}`
            end
            stags=''
            Dir.chdir(local_dir) do
                puts `git pull`
                stags = `git tag`.gsub('\r','')
                
            end
            tags = stags.split("\n").reverse
            puts "tags: #{tags}"
            tags.each{|tag|
                build_tag url, tag.strip
            }
        end
    end

    def self.build_tag url, tag
        build_dir = get_build_dir_tag(url,tag)
        if(!Dir.exists?(build_dir))
            puts "git clone -b #{tag} --single-branch --depth 1 #{url} #{build_dir}"
            puts `git clone -b #{tag} --single-branch --depth 1 #{url} #{build_dir}`

            if(Dir.exists?(build_dir)) 
                Dir.chdir(build_dir) do
                    puts "rake #{build_dir}"
                    puts `rake`
                end
            end
        end
    end
    
    def self.get_work_dir url
        Environment.dev_root + "/work/" + get_relative_dir(url)
    end

    def self.get_build_dir url
        Environment.dev_root + "/build/" + get_relative_dir(url)
    end

    def self.get_build_dir_tag url, tag
        Environment.dev_root + "/build/" + get_relative_dir(url) + "-#{tag}"
    end
    
    def self.get_relative_dir url 
        url.gsub('http://','').gsub('https://','').gsub('.git','')
    end
end