prometheus: extracted from goPackages

pkgs/servers/monitoring/prometheus/default.nix

@@ -0,0 +1,48 @@
+# This file was generated by go2nix.
+{ stdenv, lib, goPackages, fetchgit, fetchhg, fetchbzr, fetchsvn }:
+
+with goPackages;
+
+buildGoPackage rec {
+  name = "prometheus-${version}";
+  version = "0.17.0";
+  rev = "${version}";
+
+  goPackagePath = "github.com/prometheus/prometheus";
+
+  src = fetchgit {
+    inherit rev;
+    url = "https://github.com/prometheus/prometheus";
+    sha256 = "176198krna2i37dfhwsqi7m36sqn175yiny6n52vj27mc9s8ggzx";
+  };
+
+  docheck = true;
+
+  preBuild = ''
+    export GO15VENDOREXPERIMENT=1
+  '';
+
+  buildFlagsArray = let t = "${goPackagePath}/version"; in ''
+    -ldflags=
+       -X ${t}.Version=${version}
+       -X ${t}.Revision=unknown
+       -X ${t}.Branch=unknown
+       -X ${t}.BuildUser=nix@nixpkgs
+       -X ${t}.BuildDate=unknown
+       -X ${t}.GoVersion=${stdenv.lib.getVersion go}
+  '';
+
+  preInstall = ''
+    mkdir -p "$bin/share/doc/prometheus" "$bin/etc/prometheus"
+    cp -a $src/documentation/* $bin/share/doc/prometheus
+    cp -a $src/console_libraries $src/consoles $bin/etc/prometheus
+  '';
+
+  meta = with stdenv.lib; {
+    description = "Service monitoring system and time series database";
+    homepage = http://prometheus.io;
+    license = licenses.asl20;
+    maintainers = with maintainers; [ benley ];
+    platforms = platforms.unix;
+  };
+}