buildBazelPackage: support multiple targets

pkgs/build-support/build-bazel-package/default.nix

@@ -10,7 +10,7 @@ args@{
 , bazelBuildFlags ? []
 , bazelTestFlags ? []
 , bazelFetchFlags ? []
-, bazelTarget
+, bazelTargets
 , bazelTestTargets ? []
 , buildAttrs
 , fetchAttrs
@@ -69,11 +69,11 @@ let
     '';
 in
 stdenv.mkDerivation (fBuildAttrs // {
-  inherit name bazelFlags bazelBuildFlags bazelTestFlags bazelFetchFlags bazelTarget bazelTestTargets;
+  inherit name bazelFlags bazelBuildFlags bazelTestFlags bazelFetchFlags bazelTargets bazelTestTargets;
 
   deps = stdenv.mkDerivation (fFetchAttrs // {
     name = "${name}-deps.tar.gz";
-    inherit bazelFlags bazelBuildFlags bazelTestFlags bazelFetchFlags bazelTarget bazelTestTargets;
+    inherit bazelFlags bazelBuildFlags bazelTestFlags bazelFetchFlags bazelTargets bazelTestTargets;
 
     impureEnvVars = lib.fetchers.proxyImpureEnvVars ++ fFetchAttrs.impureEnvVars or [];
 
@@ -94,21 +94,18 @@ stdenv.mkDerivation (fBuildAttrs // {
     buildPhase = fFetchAttrs.buildPhase or ''
       runHook preBuild
 
-      # See footnote called [USER and BAZEL_USE_CPP_ONLY_TOOLCHAIN variables].
+      ${
+        bazelCmd {
+          cmd = if fetchConfigured then "build --nobuild" else "fetch";
+          additionalFlags = [
             # We disable multithreading for the fetching phase since it can lead to timeouts with many dependencies/threads:
             # https://github.com/bazelbuild/bazel/issues/6502
-      BAZEL_USE_CPP_ONLY_TOOLCHAIN=1 \
-      USER=homeless-shelter \
-      bazel \
-        --batch \
-        --output_base="$bazelOut" \
-        --output_user_root="$bazelUserRoot" \
-        ${if fetchConfigured then "build --nobuild" else "fetch"} \
-        --loading_phase_threads=1 \
-        $bazelFlags \
-        $bazelFetchFlags \
-        ${bazelTarget} \
-        ${lib.strings.concatStringsSep " " bazelTestTargets}
+            "--loading_phase_threads=1"
+            "$bazelFetchFlags"
+          ];
+          targets = bazelTargets ++ bazelTestTargets;
+        }
+      }
 
       runHook postBuild
     '';
@@ -232,7 +229,7 @@ stdenv.mkDerivation (fBuildAttrs // {
       bazelCmd {
         cmd = "build";
         additionalFlags = bazelBuildFlags;
-        targets = [bazelTarget];
+        targets = bazelTargets;
       }
     }
     runHook postBuild

pkgs/development/python-modules/jaxlib/default.nix

@@ -138,7 +138,7 @@ let
       rm -f .bazelversion
     '';
 
-    bazelTarget = "//build:build_wheel";
+    bazelTargets = [ "//build:build_wheel" ];
 
     removeRulesCC = false;
 

pkgs/development/python-modules/tensorflow-probability/default.nix

@@ -50,7 +50,7 @@ let
 
     bazel = bazel_6;
 
-    bazelTarget = ":pip_pkg";
+    bazelTargets = [ ":pip_pkg" ];
     LIBTOOL = lib.optionalString stdenv.isDarwin "${cctools}/bin/libtool";
 
     fetchAttrs = {

pkgs/development/python-modules/tensorflow/default.nix

@@ -385,7 +385,7 @@ let
     ]
     ++ lib.optionals (mklSupport) [ "--config=mkl" ];
 
-    bazelTarget = "//tensorflow/tools/pip_package:build_pip_package //tensorflow/tools/lib_package:libtensorflow";
+    bazelTargets = [ "//tensorflow/tools/pip_package:build_pip_package //tensorflow/tools/lib_package:libtensorflow" ];
 
     removeRulesCC = false;
     # Without this Bazel complaints about sandbox violations.

pkgs/development/tools/bazel-watcher/default.nix

@@ -45,7 +45,7 @@ buildBazelPackage rec {
   bazel = bazel_5;
   bazelFlags = [ "--override_repository=rules_proto=${rulesProto}" ];
   bazelBuildFlags = lib.optionals stdenv.cc.isClang [ "--cxxopt=-x" "--cxxopt=c++" "--host_cxxopt=-x" "--host_cxxopt=c++" ];
-  bazelTarget = "//cmd/ibazel";
+  bazelTargets = [ "//cmd/ibazel" ];
 
   fetchConfigured = false; # we want to fetch all dependencies, regardless of the current system
   fetchAttrs = {

pkgs/development/tools/language-servers/verible/default.nix

@@ -74,7 +74,7 @@ buildBazelPackage rec {
 
   bazel = bazel_4;
   removeRulesCC = false;
-  bazelTarget = ":install-binaries";
+  bazelTargets = [ ":install-binaries" ];
   bazelTestTargets = [ "//..." ];
   bazelBuildFlags = [
     "-c opt"

pkgs/servers/http/envoy/default.nix

@@ -140,7 +140,7 @@ buildBazelPackage rec {
   removeRulesCC = false;
   removeLocalConfigCc = true;
   removeLocal = false;
-  bazelTarget = "//source/exe:envoy-static";
+  bazelTargets = [ "//source/exe:envoy-static" ];
   bazelBuildFlags = [
     "-c opt"
     "--spawn_strategy=standalone"