nix: don't allow overriding the import packages. This causes overlays to fail

default.nix

@@ -1,294 +1,294 b''
 # Nix environment for the community edition
 #
 # This shall be as lean as possible, just producing the enterprise-ce
 # derivation. For advanced tweaks to pimp up the development environment we use
 # "shell.nix" so that it does not have to clutter this file.
 #
 # Configuration, set values in "~/.nixpkgs/config.nix".
 # example
 #  {
 #    # Thoughts on how to configure the dev environment
 #    rc = {
-#      codeInternalUrl = "https://usr:[e-mail]";
+#      codeInternalUrl = "https://usr:[e-mail]/internal";
 #      sources = {
 #        rhodecode-vcsserver = "/home/user/work/rhodecode-vcsserver";
 #        rhodecode-enterprise-ce = "/home/user/work/rhodecode-enterprise-ce";
 #        rhodecode-enterprise-ee = "/home/user/work/rhodecode-enterprise-ee";
 #      };
 #    };
 #  }
 
 args@
 { pythonPackages ? "python27Packages"
 , pythonExternalOverrides ? self: super: {}
 , doCheck ? false
 , ...
 }:
-let pkgs_ = (import <nixpkgs> {}); in
 
 let
-  # Use nixpkgs from args or import them. We use this indirect approach
-  # through args to be able to use the name `pkgs` for our customized packages.
-  # Otherwise we will end up with an infinite recursion.
-  pkgs = args.pkgs or (import <nixpkgs> {
+  pkgs_ = (import <nixpkgs> {});
+in
+
+let
+  pkgs = import <nixpkgs> {
     overlays = [
       (import ./pkgs/overlays.nix)
     ];
     inherit
       (pkgs_)
       system;
-  });
+  };
 
   # Works with the new python-packages, still can fallback to the old
   # variant.
   basePythonPackagesUnfix = basePythonPackages.__unfix__ or (
     self: basePythonPackages.override (a: { inherit self; }));
 
   # Evaluates to the last segment of a file system path.
   basename = path: with pkgs.lib; last (splitString "/" path);
 
   # source code filter used as arugment to builtins.filterSource.
   src-filter = path: type: with pkgs.lib;
     let
       ext = last (splitString "." path);
     in
       !builtins.elem (basename path) [
         ".git" ".hg" "__pycache__" ".eggs" ".idea" ".dev"
         "node_modules" "node_binaries"
         "build" "data" "result" "tmp"] &&
       !builtins.elem ext ["egg-info" "pyc"] &&
       # TODO: johbo: This check is wrong, since "path" contains an absolute path,
       # it would still be good to restore it since we want to ignore "result-*".
       !hasPrefix "result" path;
 
   sources =
     let
       inherit
         (pkgs.lib)
         all
         isString
         attrValues;
       sourcesConfig = pkgs.config.rc.sources or {};
     in
       # Ensure that sources are configured as strings. Using a path
       # would result in a copy into the nix store.
       assert all isString (attrValues sourcesConfig);
       sourcesConfig;
 
   version = builtins.readFile "${rhodecode-enterprise-ce-src}/rhodecode/VERSION";
   rhodecode-enterprise-ce-src = builtins.filterSource src-filter ./.;
 
   nodeEnv = import ./pkgs/node-default.nix {
     inherit
       pkgs;
   };
   nodeDependencies = nodeEnv.shell.nodeDependencies;
 
   rhodecode-testdata-src = sources.rhodecode-testdata or (
     pkgs.fetchhg {
       url = "https://code.rhodecode.com/upstream/rc_testdata";
       rev = "v0.10.0";
       sha256 = "0zn9swwvx4vgw4qn8q3ri26vvzgrxn15x6xnjrysi1bwmz01qjl0";
   });
 
   rhodecode-testdata = import "${rhodecode-testdata-src}/default.nix" {
   inherit
     doCheck
     pkgs
     pythonPackages;
   };
 
   pythonLocalOverrides = self: super: {
     rhodecode-enterprise-ce =
       let
         linkNodePackages = ''
           export RHODECODE_CE_PATH=${rhodecode-enterprise-ce-src}
 
           echo "[BEGIN]: Link node packages and binaries"
           # 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.
           rm -fr node_modules
           mkdir node_modules
           ln -s ${nodeDependencies}/lib/node_modules/* node_modules/
           export NODE_PATH=./node_modules
 
           rm -fr node_binaries
           mkdir node_binaries
           ln -s ${nodeDependencies}/bin/* node_binaries/
           echo "[DONE ]: Link node packages and binaries"
         '';
 
         releaseName = "RhodeCodeEnterpriseCE-${version}";
       in super.rhodecode-enterprise-ce.override (attrs: {
       inherit
         doCheck
         version;
 
       name = "rhodecode-enterprise-ce-${version}";
       releaseName = releaseName;
       src = rhodecode-enterprise-ce-src;
       dontStrip = true; # prevent strip, we don't need it.
 
       # expose following attributed outside
       passthru = {
         inherit
           rhodecode-testdata
           linkNodePackages
           myPythonPackagesUnfix
           pythonLocalOverrides
           pythonCommunityOverrides;
 
         pythonPackages = self;
       };
 
       buildInputs =
         attrs.buildInputs or [] ++ [
           rhodecode-testdata
         ];
 
       #NOTE: option to inject additional propagatedBuildInputs
       propagatedBuildInputs =
         attrs.propagatedBuildInputs or [] ++ [
 
         ];
 
       LC_ALL = "en_US.UTF-8";
       LOCALE_ARCHIVE =
         if pkgs.stdenv.isLinux
         then "${pkgs.glibcLocales}/lib/locale/locale-archive"
         else "";
 
       # Add bin directory to path so that tests can find 'rhodecode'.
       preCheck = ''
         export PATH="$out/bin:$PATH"
       '';
 
       # custom check phase for testing
       checkPhase = ''
         runHook preCheck
         PYTHONHASHSEED=random py.test -vv -p no:sugar -r xw --cov-config=.coveragerc --cov=rhodecode --cov-report=term-missing rhodecode
         runHook postCheck
       '';
 
       postCheck = ''
         echo "Cleanup of rhodecode/tests"
         rm -rf $out/lib/${self.python.libPrefix}/site-packages/rhodecode/tests
       '';
 
       preBuild = ''
         echo "[BEGIN]: Building frontend assets"
         ${linkNodePackages}
         make web-build
         rm -fr node_modules
         rm -fr node_binaries
         echo "[DONE ]: Building frontend assets"
       '';
 
       postInstall = ''
         # check required files
         STATIC_CHECK="/robots.txt /502.html
                       /js/scripts.js /js/rhodecode-components.js
                       /css/style.css /css/style-polymer.css"
 
         for file in $STATIC_CHECK;
         do
             if [ ! -f rhodecode/public/$file ]; then
               echo "Missing $file"
               exit 1
             fi
         done
 
         echo "Writing enterprise-ce 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 ]: enterprise-ce meta information for rccontrol written"
 
         mkdir -p $out/etc
         cp configs/production.ini $out/etc
         echo "[DONE ]: saved enterprise-ce production.ini into $out/etc"
 
         cp -r rhodecode/config/rcextensions $out/etc/rcextensions.tmpl
         echo "[DONE ]: saved enterprise-ce rcextensions into $out/etc/rcextensions.tmpl"
 
         # python based programs need to be wrapped
         mkdir -p $out/bin
 
         # required binaries from dependencies
         ln -s ${self.supervisor}/bin/supervisorctl $out/bin/
         ln -s ${self.supervisor}/bin/supervisord $out/bin/
         ln -s ${self.pastescript}/bin/paster $out/bin/
         ln -s ${self.channelstream}/bin/channelstream $out/bin/
         ln -s ${self.celery}/bin/celery $out/bin/
         ln -s ${self.gunicorn}/bin/gunicorn $out/bin/
         ln -s ${self.pyramid}/bin/prequest $out/bin/
         ln -s ${self.pyramid}/bin/pserve $out/bin/
 
         echo "[DONE ]: created symlinks into $out/bin"
         DEPS="$out/bin/supervisorctl \
               $out/bin/supervisord \
               $out/bin/paster \
               $out/bin/channelstream \
               $out/bin/celery \
               $out/bin/gunicorn \
               $out/bin/prequest \
               $out/bin/pserve"
 
         # wrap only dependency scripts, they require to have full PYTHONPATH set
         # to be able to import all packages
         for file in $DEPS;
         do
           wrapProgram $file \
             --prefix PATH : $PATH \
             --prefix PYTHONPATH : $PYTHONPATH \
             --set PYTHONHASHSEED random
         done
 
         echo "[DONE ]: enterprise-ce binary wrapping"
 
         # rhodecode-tools don't need wrapping
         ln -s ${self.rhodecode-tools}/bin/rhodecode-* $out/bin/
 
         # expose sources of CE
         ln -s $out $out/etc/rhodecode_enterprise_ce_source
 
         # expose static files folder
         cp -Rf $out/lib/${self.python.libPrefix}/site-packages/rhodecode/public/ $out/etc/static
         chmod 755 -R $out/etc/static
 
       '';
     });
 
   };
 
   basePythonPackages = with builtins;
     if isAttrs pythonPackages then
       pythonPackages
     else
       getAttr pythonPackages pkgs;
 
   pythonGeneratedPackages = import ./pkgs/python-packages.nix {
     inherit
       pkgs;
     inherit
       (pkgs)
       fetchurl
       fetchgit
       fetchhg;
   };
 
   pythonCommunityOverrides = import ./pkgs/python-packages-overrides.nix {
     inherit pkgs basePythonPackages;
   };
 
   # Apply all overrides and fix the final package set
   myPythonPackagesUnfix = with pkgs.lib;
     (extends pythonExternalOverrides
     (extends pythonLocalOverrides
     (extends pythonCommunityOverrides
     (extends pythonGeneratedPackages
              basePythonPackagesUnfix))));
 
   myPythonPackages = (pkgs.lib.fix myPythonPackagesUnfix);
 
 in myPythonPackages.rhodecode-enterprise-ce

release.nix

@@ -1,21 +1,19 b''
 # This file defines how to "build" for packaging.
 
-{ pkgs ? import <nixpkgs> {}
-, doCheck ? false
+{ doCheck ? false
 }:
 
 let
   enterprise_ce = import ./default.nix {
     inherit
-      doCheck
-      pkgs;
+      doCheck;
 
     # disable checkPhase for build
     checkPhase = ''
     '';
 
   };
 
 in {
   build = enterprise_ce;
 }