anchor.diff:      sha256 = "13wzs2qrxd72ah32ym0ppswhvyimjw5cqaq3q153y68vlvxd048c";
     };
   
  -  cobra = buildGoPackage rec {
  -    date = "20140617";
  -    rev = "10a8494a87448bf5003222d9974f166437e7f042";
  -    name = "cobra-${date}-${stdenv.lib.strings.substring 0 7 rev}";
  -    goPackagePath = "github.com/spf13/cobra";
  -    src = fetchgit {
  -      inherit rev;
  -      url = "https://${goPackagePath}.git";
  -      sha256 = "1ydcccx0zdswca4v9hfmrn8ck42h485hy3wrd9k7y6mra3r6c08j";
  -    };
  -    propagatedBuildInputs = [ pflag ];
  +  cobra = buildFromGitHub {
  +    rev    = "ee6224d01f6a83f543ae90f881b703cf195782ba";
  +    owner  = "spf13";
  +    repo   = "cobra";
  +    sha256 = "0skmq1lmkh2xzl731a2sfcnl2xbcy9v1050pcf10dahwqzsbx6ij";
  +    propagatedBuildInputs = [ pflag-spf13 mousetrap go-md2man viper ];
     };
   
     cli-go = buildFromGitHub {
  
positive.code:     };
    };
  
    check-v1 = buildGoPackage rec {
      rev = "871360013c92e1c715c2de6d06b54899468a8a2d";
      name = "check-v1-${stdenv.lib.strings.substring 0 7 rev}";
  
negative.code:     buildFlags = [ "-tags release" ];
    };
  
    nitro = buildFromGitHub {
      rev    = "24d7ef30a12da0bdc5e2eb370a79c659ddccf0e8";
      owner  = "spf13";
      repo   = "nitro";
      sha256 = "143sbpx0jdgf8f8ayv51x6l4jg6cnv6nps6n60qxhx4vd90s6mib";
    };
  
    nsq = buildFromGitHub {
      rev = "v0.3.5";
      owner = "bitly";
  