bazel_7: fix cpp-test with bzlmod, for linux

1 files changed, 99 insertions, 0 deletions

diff --git a/pkgs/development/tools/build-managers/bazel/bazel_7/cpp-test.nix b/pkgs/development/tools/build-managers/bazel/bazel_7/cpp-test.nix
new file mode 100644
index 0000000000000..f81526240312b
--- /dev/null
+++ b/pkgs/development/tools/build-managers/bazel/bazel_7/cpp-test.nix
@@ -0,0 +1,99 @@
+{
+  bazel
+, bazel-examples
+, bazelTest
+, callPackage
+, darwin
+, distDir
+, extraBazelArgs ? ""
+, Foundation ? null
+, lib
+, runLocal
+, runtimeShell
+, stdenv
+, symlinkJoin
+, writeScript
+, writeText
+}:
+
+let
+
+  localDistDir = callPackage ./bazel-repository-cache.nix {
+    lockfile = ./cpp-test-MODULE.bazel.lock;
+
+    # Take all the rules_ deps, bazel_ deps and their transitive dependencies,
+    # but none of the platform-specific binaries, as they are large and useless.
+    requiredDepNamePredicate = name:
+      null == builtins.match ".*(macos|osx|linux|win|apple|android|maven).*" name
+      && null != builtins.match "(platforms|com_google_|protobuf|rules_|bazel_).*" name ;
+  };
+
+  mergedDistDir = symlinkJoin {
+    name = "mergedDistDir";
+    paths = [ localDistDir distDir ];
+  };
+
+  toolsBazel = writeScript "bazel" ''
+    #! ${runtimeShell}
+
+    export CXX='${stdenv.cc}/bin/clang++'
+    export LD='${darwin.cctools}/bin/ld'
+    export LIBTOOL='${darwin.cctools}/bin/libtool'
+    export CC='${stdenv.cc}/bin/clang'
+    export BAZEL_LINKLIBS='-lstdc++:-lm'
+    export BAZEL_LINKOPTS='-x:c++'
+
+    # XXX: hack for macosX, this flags disable bazel usage of xcode
+    # See: https://github.com/bazelbuild/bazel/issues/4231
+    export BAZEL_USE_CPP_ONLY_TOOLCHAIN=1
+
+    exec "$BAZEL_REAL" "$@"
+  '';
+
+  workspaceDir = runLocal "our_workspace" {} (''
+    cp -r ${bazel-examples}/cpp-tutorial/stage3 $out
+    find $out -type d -exec chmod 755 {} \;
+    cp ${./cpp-test-MODULE.bazel} $out/MODULE.bazel
+    cp ${./cpp-test-MODULE.bazel.lock} $out/MODULE.bazel.lock
+    echo > $out/WORSPACE
+  ''
+  + (lib.optionalString stdenv.isDarwin ''
+    mkdir $out/tools
+    cp ${toolsBazel} $out/tools/bazel
+  ''));
+
+  testBazel = bazelTest {
+    name = "bazel-test-cpp";
+    inherit workspaceDir;
+    bazelPkg = bazel;
+    bazelScript = ''
+      set -x
+      env | grep c..abi
+      ${bazel}/bin/bazel build //... \
+        --enable_bzlmod \
+        --verbose_failures \
+        --repository_cache=${mergedDistDir} \
+        --action_env=NIX_DEBUG=1 \
+        --announce_rc \
+        --curses=no \
+    '' + lib.optionalString (stdenv.isDarwin) ''
+        --repo_env=BAZEL_LINKLIBS \
+        --repo_env=BAZEL_LINKOPTS \
+        --cxxopt=-x --cxxopt=c++ \
+        --host_cxxopt=-x --host_cxxopt=c++ \
+        --action_env=NIX_CFLAGS_COMPILE \
+        --action_env=NIX_LDFLAGS \
+    '' + lib.optionalString (stdenv.isDarwin && Foundation != null) ''
+        --linkopt=-Wl,-F${Foundation}/Library/Frameworks \
+        --linkopt=-L${darwin.libobjc}/lib \
+    '' + ''
+
+    '';
+    #'' + lib.optionalString (stdenv.isDarwin) ''
+    #    --repo_env=BAZEL_LINKLIBS='-lstdc++:-lm' \
+    #'' + lib.optionalString (stdenv.isDarwin) ''
+    #    --cxxopt=-x --cxxopt=c++ --host_cxxopt=-x --host_cxxopt=c++ \
+    #    --linkopt=-Wl,-lstdc++ --host_linkopt=-Wl,-lstdc++ \
+  };
+
+in testBazel