dependencies: Adding Bower out of nixpkgs

Usually bower would be installed globally, so it seems to be appropriate to use
the one out of the nixpkgs so that we don't have to pin a specific version
ourselves.

default.nix

@@ -1,218 +1,219 b''
 # Nix environment for the community edition
 #
 # This shall be as lean as possible, just producing the Enterprise
 # derivation. For advanced tweaks to pimp up the development environment we use
 # "shell.nix" so that it does not have to clutter this file.
 
 { pkgs ? (import <nixpkgs> {})
 , pythonPackages ? "python27Packages"
 , pythonExternalOverrides ? self: super: {}
 , doCheck ? true
 }:
 
 let pkgs_ = pkgs; in
 
 let
   pkgs = pkgs_.overridePackages (self: super: {
     # Override subversion derivation to
     #  - activate python bindings
     #  - set version to 1.8
     subversion = super.subversion18.override {
        httpSupport = true;
        pythonBindings = true;
        python = self.python27Packages.python;
     };
   });
 
   inherit (pkgs.lib) fix extends;
 
   basePythonPackages = with builtins; if isAttrs pythonPackages
     then pythonPackages
     else getAttr pythonPackages pkgs;
 
   elem = builtins.elem;
   basename = path: with pkgs.lib; last (splitString "/" path);
   startsWith = prefix: full: let
     actualPrefix = builtins.substring 0 (builtins.stringLength prefix) full;
   in actualPrefix == prefix;
 
   src-filter = path: type: with pkgs.lib;
     let
       ext = last (splitString "." path);
     in
       !elem (basename path) [
         ".git" ".hg" "__pycache__" ".eggs" "node_modules"
         "build" "data" "tmp"] &&
       !elem ext ["egg-info" "pyc"] &&
       !startsWith "result" path;
 
   sources = pkgs.config.rc.sources or {};
   rhodecode-enterprise-ce-src = builtins.filterSource src-filter ./.;
 
   nodeEnv = import ./pkgs/node-default.nix {
     inherit pkgs;
   };
   nodeDependencies = nodeEnv.shell.nodeDependencies;
 
   pythonGeneratedPackages = self: basePythonPackages.override (a: {
     inherit self;
   })
   // (scopedImport {
     self = self;
     super = basePythonPackages;
     inherit pkgs;
     inherit (pkgs) fetchurl fetchgit;
   } ./pkgs/python-packages.nix);
 
   pythonOverrides = import ./pkgs/python-packages-overrides.nix {
     inherit
       basePythonPackages
       pkgs;
   };
 
   pythonLocalOverrides = self: super: {
     rhodecode-enterprise-ce =
       let
         version = builtins.readFile ./rhodecode/VERSION;
         linkNodeModules = ''
           echo "Link node packages"
           rm -fr node_modules
           mkdir node_modules
 
           # johbo: Linking individual packages allows us to run "npm install"
           # inside of a shell to try things out. Re-entering the shell will
           # restore a clean environment.
           ln -s ${nodeDependencies}/lib/node_modules/* node_modules/
 
           echo "DONE: Link node packages"
         '';
       in super.rhodecode-enterprise-ce.override (attrs: {
 
       inherit
         doCheck
         version;
       name = "rhodecode-enterprise-ce-${version}";
       releaseName = "RhodeCodeEnterpriseCE-${version}";
       src = rhodecode-enterprise-ce-src;
 
       buildInputs =
         attrs.buildInputs ++
         (with self; [
+          pkgs.nodePackages.bower
           pkgs.nodePackages.grunt-cli
           pkgs.subversion
           pytest-catchlog
           rhodecode-testdata
         ]);
 
       propagatedBuildInputs = attrs.propagatedBuildInputs ++ (with self; [
         rhodecode-tools
       ]);
 
       # TODO: johbo: Make a nicer way to expose the parts. Maybe
       # pkgs/default.nix?
       passthru = {
         inherit
           linkNodeModules
           myPythonPackagesUnfix
           pythonLocalOverrides;
         pythonPackages = self;
       };
 
       LC_ALL = "en_US.UTF-8";
       LOCALE_ARCHIVE =
         if pkgs.stdenv ? glibc
         then "${pkgs.glibcLocales}/lib/locale/locale-archive"
         else "";
 
       # Somewhat snappier setup of the development environment
       # TODO: move into shell.nix
       # TODO: think of supporting a stable path again, so that multiple shells
       #       can share it.
       shellHook = ''
         tmp_path=$(mktemp -d)
         export PATH="$tmp_path/bin:$PATH"
         export PYTHONPATH="$tmp_path/${self.python.sitePackages}:$PYTHONPATH"
         mkdir -p $tmp_path/${self.python.sitePackages}
         python setup.py develop --prefix $tmp_path --allow-hosts ""
       '' + linkNodeModules;
 
       preCheck = ''
         export PATH="$out/bin:$PATH"
       '';
 
       postCheck = ''
         rm -rf $out/lib/${self.python.libPrefix}/site-packages/pytest_pylons
         rm -rf $out/lib/${self.python.libPrefix}/site-packages/rhodecode/tests
       '';
 
       preBuild = linkNodeModules + ''
         grunt
         rm -fr node_modules
       '';
 
       postInstall = ''
         # python based programs need to be wrapped
         ln -s ${self.supervisor}/bin/supervisor* $out/bin/
         ln -s ${self.gunicorn}/bin/gunicorn $out/bin/
         ln -s ${self.PasteScript}/bin/paster $out/bin/
         ln -s ${self.channelstream}/bin/channelstream $out/bin/
         ln -s ${self.pyramid}/bin/* $out/bin/  #*/
 
         # rhodecode-tools
         # TODO: johbo: re-think this. Do the tools import anything from enterprise?
         ln -s ${self.rhodecode-tools}/bin/rhodecode-* $out/bin/
 
         # note that condition should be restricted when adding further tools
         for file in $out/bin/*; do  #*/
           wrapProgram $file \
               --prefix PYTHONPATH : $PYTHONPATH \
               --prefix PATH : $PATH \
               --set PYTHONHASHSEED random
         done
 
         mkdir $out/etc
         cp configs/production.ini $out/etc
 
         echo "Writing meta information for rccontrol to nix-support/rccontrol"
         mkdir -p $out/nix-support/rccontrol
         cp -v rhodecode/VERSION $out/nix-support/rccontrol/version
         echo "DONE: Meta information for rccontrol written"
 
         # TODO: johbo: Make part of ac-tests
         if [ ! -f rhodecode/public/js/scripts.js ]; then
           echo "Missing scripts.js"
           exit 1
         fi
         if [ ! -f rhodecode/public/css/style.css ]; then
           echo "Missing style.css"
           exit 1
         fi
       '';
 
     });
 
     rhodecode-testdata = import "${rhodecode-testdata-src}/default.nix" {
     inherit
       doCheck
       pkgs
       pythonPackages;
     };
 
   };
 
   rhodecode-testdata-src = sources.rhodecode-testdata or (
     pkgs.fetchhg {
       url = "https://code.rhodecode.com/upstream/rc_testdata";
       rev = "v0.8.0";
       sha256 = "0hy1ba134rq2f9si85yx7j4qhc9ky0hjzdk553s3q026i7km809m";
   });
 
   # Apply all overrides and fix the final package set
   myPythonPackagesUnfix =
     (extends pythonExternalOverrides
     (extends pythonLocalOverrides
     (extends pythonOverrides
              pythonGeneratedPackages)));
   myPythonPackages = (fix myPythonPackagesUnfix);
 
 in myPythonPackages.rhodecode-enterprise-ce