Merge branch 'main' into fix-random-memory-leak

.bazelrc

@@ -10,6 +10,9 @@ common --enable_platform_specific_config
 # Needed by gRPC to build on some platforms.
 build --copt -DGRPC_BAZEL_BUILD
 
+# Workaround abseil libraries missing symbols
+build:windows --dynamic_mode=off
+
 # Set minimum supported C++ version
 build:macos --host_cxxopt=-std=c++14 --cxxopt=-std=c++14
 build:linux --host_cxxopt=-std=c++14 --cxxopt=-std=c++14

.bazelversion

@@ -1 +1 @@
-5.4.1
+7.1.1

.clang-tidy

@@ -0,0 +1,39 @@
+# Copyright The OpenTelemetry Authors
+# SPDX-License-Identifier: Apache-2.0
+
+Checks: >
+  -*,
+  performance-*,
+  portability-*,
+  abseil-*,
+  -abseil-string-find-str-contains,
+  bugprone-*,
+  -bugprone-easily-swappable-parameters,
+  -bugprone-implicit-widening-of-multiplication-result,
+  -bugprone-inc-dec-in-conditions,
+  -bugprone-narrowing-conversions,
+  -bugprone-unchecked-optional-access,
+  -bugprone-unhandled-exception-at-new,
+  -bugprone-unused-local-non-trivial-variable,
+  google-*,
+  -google-build-using-namespace,
+  -google-default-arguments,
+  -google-explicit-constructor,
+  -google-readability-avoid-underscore-in-googletest-name,
+  -google-readability-braces-around-statements,
+  -google-readability-namespace-comments,
+  -google-readability-todo,
+  -google-runtime-references,
+  misc-*,
+  -misc-const-correctness,
+  -misc-include-cleaner,
+  -misc-non-private-member-variables-in-classes,
+  -misc-unused-alias-decls,
+  -misc-use-anonymous-namespace,
+  cppcoreguidelines-*,
+  -cppcoreguidelines-avoid-c-arrays,
+  -cppcoreguidelines-avoid-magic-numbers,
+  -cppcoreguidelines-init-variables,
+  -cppcoreguidelines-macro-usage,
+  -cppcoreguidelines-non-private-member-variables-in-classes,
+  -cppcoreguidelines-pro-*

.github/workflows/ci.yml

@@ -7,6 +7,37 @@ on:
     branches: [ main ]
 
 jobs:
+  arm64_test:
+    name: CMake test arm64 (with modern protobuf,grpc and abseil)
+    runs-on: actuated-arm64-4cpu-16gb
+    steps:
+    - uses: actions/checkout@v4
+      with:
+        submodules: 'recursive'
+    - name: setup
+      env:
+        PROTOBUF_VERSION: '23.3'
+        ABSEIL_CPP_VERSION: '20230125.3'
+        CXX_STANDARD: '14'
+        CC: /usr/bin/gcc-10
+        CXX: /usr/bin/g++-10
+      run: |
+        sudo -E ./ci/setup_gcc10.sh
+        sudo -E ./ci/setup_cmake.sh
+        sudo -E ./ci/setup_ci_environment.sh
+        sudo -E ./ci/setup_googletest.sh
+        sudo -E ./ci/install_abseil.sh
+        sudo -E ./ci/install_protobuf.sh
+    - name: run otlp exporter tests
+      env:
+        CC: /usr/bin/gcc-10
+        CXX: /usr/bin/g++-10
+        WITH_ABSEIL: 'ON'
+        CXX_STANDARD: '14'
+      run: |
+        sudo -E ./ci/setup_grpc.sh -m -p protobuf -p abseil-cpp
+        ./ci/do_ci.sh cmake.exporter.otprotocol.test
+
   cmake_test:
     name: CMake test (without otlp-exporter)
     runs-on: ubuntu-latest
@@ -41,6 +72,7 @@ jobs:
         CXX: /usr/bin/g++-14
         PROTOBUF_VERSION: 21.12
       run: |
+        sudo apt remove needrestart #refer: https://github.com/actions/runner-images/issues/9937
         sudo -E ./ci/setup_googletest.sh
         sudo -E ./ci/setup_ci_environment.sh
         sudo -E ./ci/install_protobuf.sh
@@ -73,6 +105,7 @@ jobs:
         CXX: /usr/bin/g++-14
         PROTOBUF_VERSION: 21.12
       run: |
+        sudo apt remove needrestart #refer: https://github.com/actions/runner-images/issues/9937
         sudo -E ./ci/setup_googletest.sh
         sudo -E ./ci/setup_ci_environment.sh
         sudo -E ./ci/install_protobuf.sh
@@ -105,6 +138,7 @@ jobs:
         CXX: /usr/bin/clang++-18
         PROTOBUF_VERSION: 21.12
       run: |
+        sudo apt remove needrestart #refer: https://github.com/actions/runner-images/issues/9937
         sudo -E ./ci/setup_googletest.sh
         sudo -E ./ci/setup_ci_environment.sh
         sudo -E ./ci/install_protobuf.sh
@@ -137,6 +171,7 @@ jobs:
         CXX: /usr/bin/clang++-18
         PROTOBUF_VERSION: 21.12
       run: |
+        sudo apt remove needrestart #refer: https://github.com/actions/runner-images/issues/9937
         sudo -E ./ci/setup_googletest.sh
         sudo -E ./ci/setup_ci_environment.sh
         sudo -E ./ci/install_protobuf.sh
@@ -169,6 +204,7 @@ jobs:
         CXX: /usr/bin/clang++-18
         PROTOBUF_VERSION: 21.12
       run: |
+        sudo apt remove needrestart #refer: https://github.com/actions/runner-images/issues/9937
         sudo -E ./ci/setup_googletest.sh
         sudo -E ./ci/setup_ci_environment.sh
         sudo -E ./ci/install_protobuf.sh
@@ -532,8 +568,8 @@ jobs:
     - name: run tests
       run: ./ci/do_ci.sh bazel.test
 
-  bazel_test_async:
-    name: Bazel with async export
+  bazel_no_bzlmod_test:
+    name: Bazel without bzlmod
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v4
@@ -551,10 +587,10 @@ jobs:
         sudo ./ci/setup_ci_environment.sh
         sudo ./ci/install_bazelisk.sh
     - name: run tests
-      run: ./ci/do_ci.sh bazel.with_async_export.test
+      run: ./ci/do_ci.sh bazel.no_bzlmod.test
 
-  bazel_with_abseil:
-    name: Bazel with external abseil
+  bazel_test_async:
+    name: Bazel with async export
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v4
@@ -572,7 +608,7 @@ jobs:
         sudo ./ci/setup_ci_environment.sh
         sudo ./ci/install_bazelisk.sh
     - name: run tests
-      run: ./ci/do_ci.sh bazel.with_abseil
+      run: ./ci/do_ci.sh bazel.with_async_export.test
 
   bazel_valgrind:
     name: Bazel valgrind
@@ -726,11 +762,11 @@ jobs:
 
   format:
     name: Format
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-24.04
     steps:
     - uses: actions/checkout@v4
     - name: setup
-      run: sudo ./ci/install_format_tools.sh
+      run: sudo apt remove needrestart && sudo ./ci/install_format_tools.sh #refer: https://github.com/actions/runner-images/issues/9937
     - name: run tests
       run: ./ci/do_ci.sh format
 

.github/workflows/clang-tidy.yaml

@@ -0,0 +1,84 @@
+name: clang-tidy
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+
+jobs:
+  clang-tidy:
+    runs-on: ubuntu-24.04
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          submodules: recursive
+
+      - name: Setup Environment
+        env:
+          PROTOBUF_VERSION: '23.3'
+          ABSEIL_CPP_VERSION: '20230125.3'
+          CXX_STANDARD: '14'
+        run: |
+          sudo apt update -y
+          sudo apt install -y --no-install-recommends --no-install-suggests \
+          build-essential \
+          iwyu \
+          cmake \
+          libssl-dev \
+          libcurl4-openssl-dev \
+          libprotobuf-dev \
+          protobuf-compiler \
+          libgmock-dev \
+          libgtest-dev \
+          libbenchmark-dev
+
+          if ! command -v clang-tidy &> /dev/null; then
+            echo "clang-tidy could not be found"
+            exit 1
+          fi
+          echo "Using clang-tidy version: $(clang-tidy --version)"
+          echo "clang-tidy installed at: $(which clang-tidy)"
+
+
+      - name: Prepare CMake
+        env:
+          CC: clang
+          CXX: clang++
+        run: |
+          mkdir -p build && cd build
+          echo "Running cmake..."
+          cmake .. \
+            -DCMAKE_CXX_STANDARD=14 \
+            -DWITH_STL=CXX14 \
+            -DWITH_OTLP_HTTP=ON \
+            -DWITH_OTLP_FILE=ON \
+            -DWITH_PROMETHEUS=ON \
+            -DWITH_ZIPKIN=ON \
+            -DWITH_ELASTICSEARCH=ON \
+            -DWITH_OTLP_HTTP_COMPRESSION=ON \
+            -DWITH_EXAMPLES=ON \
+            -DWITH_EXAMPLES_HTTP=ON \
+            -DBUILD_W3CTRACECONTEXT_TEST=ON \
+            -DWITH_METRICS_EXEMPLAR_PREVIEW=ON \
+            -DWITH_ASYNC_EXPORT_PREVIEW=ON \
+            -DCMAKE_EXPORT_COMPILE_COMMANDS=ON \
+            -DCMAKE_CXX_CLANG_TIDY="clang-tidy"
+
+      - name: Run clang-tidy
+        run: |
+          cd build
+          make -j$(nproc) 2>&1 | tee -a clang-tidy.log || exit 1
+
+      - uses: actions/upload-artifact@v4
+        with:
+          name: Logs (clang-tidy)
+          path: ./build/clang-tidy.log
+
+      - name: Count warnings
+        run: |
+          cd build
+          COUNT=$(grep -c "warning:" clang-tidy.log)
+          echo "clang-tidy reported ${COUNT} warning(s)"
+
+# TODO: include WITH_OTLP_GRPC and WITH_ABSEIL flags.

.github/workflows/dependencies_image.yml

@@ -21,7 +21,7 @@ jobs:
       uses: docker/setup-buildx-action@v3
     -
       name: Build Image
-      uses: docker/build-push-action@v5
+      uses: docker/build-push-action@v6
       with:
         builder: ${{ steps.buildx.outputs.name }}
         context: ci/

.github/workflows/iwyu.yml

@@ -0,0 +1,68 @@
+
+name: include-what-you-use
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+jobs:
+  iwyu:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          submodules: 'recursive'
+
+      - name: setup dependencies
+        run: |
+          sudo apt update -y
+          sudo apt install -y --no-install-recommends --no-install-suggests \
+            build-essential \
+            iwyu \
+            cmake \
+            ninja-build \
+            libssl-dev \
+            libcurl4-openssl-dev \
+            libprotobuf-dev \
+            protobuf-compiler \
+            libgmock-dev \
+            libgtest-dev \
+            libbenchmark-dev
+
+      - name: Prepare CMake
+        run: |
+          TOPDIR=`pwd`
+          mkdir build && cd build
+          CC="clang" CXX="clang++" cmake \
+            -DCMAKE_CXX_STANDARD=14 \
+            -DWITH_STL=CXX14 \
+            -DCMAKE_CXX_INCLUDE_WHAT_YOU_USE="include-what-you-use;-w;-Xiwyu;--mapping_file=${TOPDIR}/.iwyu.imp;" \
+            -DBUILD_TESTING=OFF \
+            -DBUILD_W3CTRACECONTEXT_TEST=OFF \
+            -DWITH_OTLP_GRPC=OFF \
+            -DWITH_OTLP_HTTP=ON \
+            -DWITH_OTLP_FILE=ON \
+            -DWITH_OTLP_HTTP_COMPRESSION=ON \
+            -DWITH_ZIPKIN=ON \
+            -DWITH_PROMETHEUS=OFF \
+            ..
+
+      - name: iwyu_tool
+        run: |
+          cd build
+          make -k 2>&1 | tee -a iwyu.log
+
+      - uses: actions/upload-artifact@v4
+        if: success() || failure()
+        with:
+          name: Logs (include-what-you-use)
+          path: ./build/*.log
+
+      - name: count warnings
+        run: |
+          cd build
+          COUNT=`grep -c "Warning:" iwyu.log`
+          echo "include-what-you-use reported ${COUNT} warning(s)"
+

.gitignore

@@ -37,6 +37,7 @@
 *.app
 
 # Bazel files
+MODULE.bazel.lock
 /bazel-*
 
 # Mac

.iwyu.imp

@@ -0,0 +1,13 @@
+# Copyright The OpenTelemetry Authors
+# SPDX-License-Identifier: Apache-2.0
+
+# include-what-you-use mapping file
+
+[
+  # Work around for C++ STL
+  { "include": ["<bits/chrono.h>", "private", "<chrono>", "public"] },
+
+  # Local opentelemetry-cpp
+
+]
+