Reapply "[build] Convert project file generation programs to C++ (#386……

… (grpc#38768)

This reverts commit 6be50c9.

templates/config.m4.inja

@@ -0,0 +1,55 @@
+PHP_ARG_ENABLE(grpc, whether to enable grpc support,
+[  --enable-grpc           Enable grpc support])
+
+if test "$PHP_GRPC" != "no"; then
+  dnl Write more examples of tests here...
+
+  dnl # --with-grpc -> add include path
+  PHP_ADD_INCLUDE(PHP_EXT_SRCDIR()/include)
+  PHP_ADD_INCLUDE(PHP_EXT_SRCDIR()/src/core/ext/upb-gen)
+  PHP_ADD_INCLUDE(PHP_EXT_SRCDIR()/src/core/ext/upbdefs-gen)
+  PHP_ADD_INCLUDE(PHP_EXT_SRCDIR()/src/php/ext/grpc)
+  PHP_ADD_INCLUDE(PHP_EXT_SRCDIR()/third_party/abseil-cpp)
+  PHP_ADD_INCLUDE(PHP_EXT_SRCDIR()/third_party/address_sorting/include)
+  PHP_ADD_INCLUDE(PHP_EXT_SRCDIR()/third_party/boringssl-with-bazel/src/include)
+  PHP_ADD_INCLUDE(PHP_EXT_SRCDIR()/third_party/re2)
+  PHP_ADD_INCLUDE(PHP_EXT_SRCDIR()/third_party/upb)
+  PHP_ADD_INCLUDE(PHP_EXT_SRCDIR()/third_party/utf8_range)
+  PHP_ADD_INCLUDE(PHP_EXT_SRCDIR()/third_party/xxhash)
+
+  LIBS="-lpthread $LIBS"
+
+  CFLAGS="-std=c11 -g -O2"
+  CXXFLAGS="-std=c++17 -fno-exceptions -fno-rtti -g -O2"
+  GRPC_SHARED_LIBADD="-lpthread $GRPC_SHARED_LIBADD"
+  PHP_REQUIRE_CXX()
+  PHP_ADD_LIBRARY(pthread)
+  PHP_ADD_LIBRARY(dl,,GRPC_SHARED_LIBADD)
+  PHP_ADD_LIBRARY(dl)
+
+  case $host in
+    *darwin*)
+      PHP_ADD_LIBRARY(c++,1,GRPC_SHARED_LIBADD)
+      ;;
+    *)
+      PHP_ADD_LIBRARY(stdc++,1,GRPC_SHARED_LIBADD)
+      PHP_ADD_LIBRARY(rt,,GRPC_SHARED_LIBADD)
+      PHP_ADD_LIBRARY(rt)
+      ;;
+  esac
+
+  PHP_SUBST(GRPC_SHARED_LIBADD)
+  PHP_NEW_EXTENSION(grpc,
+## for src in php_config_m4.srcs
+    {{src}} \
+## endfor
+    , $ext_shared, , -fvisibility=hidden \
+    -DOPENSSL_NO_ASM -D_GNU_SOURCE -DWIN32_LEAN_AND_MEAN \
+    -D_HAS_EXCEPTIONS=0 -DNOMINMAX -DGRPC_ARES=0 \
+    -DGRPC_POSIX_FORK_ALLOW_PTHREAD_ATFORK=1 \
+    -DGRPC_XDS_USER_AGENT_NAME_SUFFIX='"\"PHP\""' \
+    -DGRPC_XDS_USER_AGENT_VERSION_SUFFIX='"\"{{settings.version.php}}\""')
+## for dir in php_config_m4.dirs
+  PHP_ADD_BUILD_DIR($ext_builddir/{{dir}})
+## endfor
+fi

tools/artifact_gen/.gitignore

@@ -0,0 +1,2 @@
+*.xml
+*.json

tools/artifact_gen/BUILD

@@ -0,0 +1,92 @@
+# Copyright 2025 The gRPC Authors
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+cc_library(
+    name = "extract_metadata_from_bazel_xml",
+    srcs = ["extract_metadata_from_bazel_xml.cc"],
+    hdrs = ["extract_metadata_from_bazel_xml.h"],
+    deps = [
+        "@abseil-cpp//absl/algorithm:container",
+        "@abseil-cpp//absl/flags:flag",
+        "@abseil-cpp//absl/log",
+        "@abseil-cpp//absl/log:check",
+        "@abseil-cpp//absl/strings",
+        "@nlohmann_json//:json",
+        "@pugixml",
+    ],
+)
+
+cc_library(
+    name = "metadata_for_wrapped_languages",
+    srcs = ["metadata_for_wrapped_languages.cc"],
+    hdrs = ["metadata_for_wrapped_languages.h"],
+    deps = [
+        "utils",
+        "@abseil-cpp//absl/log",
+        "@abseil-cpp//absl/log:check",
+        "@abseil-cpp//absl/strings",
+        "@nlohmann_json//:json",
+    ],
+)
+
+cc_library(
+    name = "boringssl",
+    srcs = ["boringssl.cc"],
+    hdrs = ["boringssl.h"],
+    deps = [
+        "@abseil-cpp//absl/log",
+        "@abseil-cpp//absl/log:check",
+        "@abseil-cpp//absl/strings",
+        "@nlohmann_json//:json",
+    ],
+)
+
+cc_library(
+    name = "utils",
+    srcs = ["utils.cc"],
+    hdrs = ["utils.h"],
+    deps = [
+        "@abseil-cpp//absl/log",
+        "@nlohmann_json//:json",
+        "@yaml-cpp//:yaml-cpp",
+    ],
+)
+
+cc_library(
+    name = "render",
+    srcs = ["render.cc"],
+    hdrs = ["render.h"],
+    deps = [
+        ":utils",
+        "@abseil-cpp//absl/flags:flag",
+        "@abseil-cpp//absl/log",
+        "@abseil-cpp//absl/log:check",
+        "@abseil-cpp//absl/strings",
+        "@nlohmann_json//:json",
+        "@pantor_inja//:inja",
+    ],
+)
+
+cc_binary(
+    name = "artifact_gen",
+    srcs = ["artifact_gen.cc"],
+    deps = [
+        ":extract_metadata_from_bazel_xml",
+        ":metadata_for_wrapped_languages",
+        ":render",
+        ":utils",
+        "@abseil-cpp//absl/flags:parse",
+        "@pantor_inja//:inja",
+    ],
+)

tools/artifact_gen/MODULE.bazel

@@ -0,0 +1,30 @@
+# Copyright 2025 The gRPC Authors
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+bazel_dep(name = "pugixml", version = "1.15")
+bazel_dep(name = "abseil-cpp", version = "20240722.0")
+bazel_dep(name = "nlohmann_json", version = "3.11.3.bcr.1")
+bazel_dep(name = "yaml-cpp", version = "0.8.0")
+
+http_archive = use_repo_rule("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
+
+http_archive(
+    name = "pantor_inja",
+    build_file = "inja.BUILD",
+    integrity = "sha256-5ijZlHYtzaqal/Y6m4tz2a9Rrw/6Ws6mvbugrOr47iU=",
+    strip_prefix = "inja-3.3.0",
+    urls = [
+        "https://github.com/pantor/inja/archive/refs/tags/v3.3.0.tar.gz",
+    ],
+)

tools/artifact_gen/artifact_gen.cc

@@ -0,0 +1,42 @@
+// Copyright 2025 gRPC authors.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include <fstream>
+
+#include "absl/flags/flag.h"
+#include "absl/flags/parse.h"
+#include "extract_metadata_from_bazel_xml.h"
+#include "metadata_for_wrapped_languages.h"
+#include "render.h"
+#include "utils.h"
+
+ABSL_FLAG(std::vector<std::string>, extra_build_yaml, {},
+          "Extra build.yaml files to merge");
+ABSL_FLAG(bool, save_json, false, "Save the generated build.yaml to a file");
+
+int main(int argc, char** argv) {
+  absl::ParseCommandLine(argc, argv);
+  auto build_yaml = ExtractMetadataFromBazelXml();
+  for (const auto& filename : absl::GetFlag(FLAGS_extra_build_yaml)) {
+    build_yaml.update(LoadYaml(filename), true);
+  }
+  // TODO(ctiller): all the special yaml updates
+  AddMetadataForWrappedLanguages(build_yaml);
+  if (absl::GetFlag(FLAGS_save_json)) {
+    std::ofstream ofs("build.json");
+    ofs << build_yaml.dump(4);
+  }
+  RenderAllTemplates(build_yaml);
+  return 0;
+}

tools/artifact_gen/artifact_gen.sh

@@ -0,0 +1,38 @@
+#!/bin/bash
+# Copyright 2025 gRPC authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+
+set -e
+
+# PHASE 0: query bazel for information we'll need
+cd $(dirname $0)/../..
+tools/bazel query --noimplicit_deps --output=xml 'deps(//test/...)' > tools/artifact_gen/test_deps.xml
+tools/bazel query --noimplicit_deps --output=xml 'deps(//:all)' > tools/artifact_gen/root_all_deps.xml
+tools/bazel query --noimplicit_deps --output=xml 'deps(//src/compiler/...)' > tools/artifact_gen/compiler_deps.xml
+tools/bazel query --noimplicit_deps --output=xml 'kind(alias, "//third_party:*")' > tools/artifact_gen/third_party_alias_deps.xml
+tools/bazel query --noimplicit_deps --output=xml 'deps(kind("^proto_library", @envoy_api//envoy/...))' > tools/artifact_gen/envoy_api_proto_deps.xml
+tools/bazel query --noimplicit_deps --output=xml 'deps("@com_google_protobuf//upb:generated_code_support__only_for_generated_code_do_not_use__i_give_permission_to_break_me")' > tools/artifact_gen/upb_deps.xml
+tools/bazel query --noimplicit_deps --output=xml 'kind(http_archive, //external:*)' > tools/artifact_gen/external_http_archive_deps.xml
+
+# PHASE 1: generate artifacts
+cd tools/artifact_gen
+bazel build -c opt :artifact_gen 
+bazel-bin/artifact_gen \
+	--target_query=`pwd`/test_deps.xml,`pwd`/root_all_deps.xml,`pwd`/compiler_deps.xml,`pwd`/third_party_alias_deps.xml,`pwd`/envoy_api_proto_deps.xml,`pwd`/upb_deps.xml \
+	--external_http_archive_query=`pwd`/external_http_archive_deps.xml \
+	--extra_build_yaml=`pwd`/../../build_handwritten.yaml \
+	--templates_dir=`pwd`/../../templates \
+	--output_dir=`pwd`/../.. \
+	--save_json=true