fetchRepoProject: init.

Added to grab projects added by git-repo.

Contains some problems still reguarding purity and clone.bundle,
but good enough for now.

pkgs/build-support/fetchrepoproject/default.nix

@@ -0,0 +1,42 @@
+{stdenv, git, gitRepo, gnupg ? null, cacert}:
+
+{name, manifest, rev ? "HEAD", sha256 ? "", repoRepoURL ? "", repoRepoRev ? "", referenceDir ? "",
+localManifests ? [] }:
+
+assert repoRepoRev != "" -> repoRepoURL != "";
+
+stdenv.mkDerivation {
+  buildCommand = with stdenv.lib; ''
+    mkdir ./.repo
+    mkdir ./.repo/local_manifests
+    for local_manifest in ${concatMapStringsSep " " (x: "${x}") localManifests}
+    do
+      cp $local_manifest ./.repo/local_manifests/$(stripHash $local_manifest; echo $strippedName)
+    done
+
+    export HOME=.repo
+    repo init --manifest-url=${manifest} --manifest-branch=${rev} --depth=1 --no-clone-bundle''
+  + ${optionalString (repoRepoURL != "") " --repo-url=${repoRepoURL}"}
+  + ${optionalString (repoRepoRev != "") " --repo-branch=${repoRepoRev}"}
+  + ${optionalString (referenceDir != "") " --reference=${referenceDir}"}
+  + ''
+    repo sync --jobs=$NIX_BUILD_CORES --current-branch
+    rm -rf $out/.repo
+  '';
+
+  GIT_SSL_CAINFO = "${cacert}/etc/ssl/certs/ca-bundle.crt";
+
+  impureEnvVars = stdenv.lib.fetchers.proxyImpureEnvVars ++ [
+    "GIT_PROXY_COMMAND" "SOCKS_SERVER"
+  ];
+
+  buildInputs = [git gitRepo cacert] ++ stdenv.lib.optional (gnupg != null) [gnupg] ;
+
+  outputHashAlgo = "sha256";
+  outputHashMode = "recursive";
+  outputHash = sha256;
+
+  preferLocalBuild = true;
+  enableParallelBuilding = true;
+  inherit name cacert manifest rev repoRepoURL repoRepoRev referenceDir;
+}

pkgs/top-level/all-packages.nix

@@ -170,6 +170,8 @@ with pkgs;
     inherit curl stdenv;
   };
 
+  fetchRepoProject = callPackage ../build-support/fetchrepoproject { };
+
   # fetchurlBoot is used for curl and its dependencies in order to
   # prevent a cyclic dependency (curl depends on curl.tar.bz2,
   # curl.tar.bz2 depends on fetchurl, fetchurl depends on curl).  It