Allow for non vendored abseil and gtest, as required on some platforms,

fixes pieter3d#18

.github/dependabot.yml

@@ -0,0 +1,6 @@
+version: 2
+updates:
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "weekly"

.github/workflows/ci.yml

@@ -14,29 +14,87 @@ jobs:
     steps:
 
     - name: Cancel previous
-      uses: styfle/cancel-workflow-action@0.9.1
+      uses: styfle/cancel-workflow-action@0.11.0
       with:
         access_token: ${{ github.token }}
 
+    - name: Install build dependencies for simview and surelog
+      run: |
+        sudo apt-get update -qq
+        sudo apt install -y \
+          libunwind-dev \
+          build-essential \
+          cmake \
+          ninja-build \
+          g++ \
+          default-jre \
+          google-perftools \
+          python3 python3-dev python3-orderedmultidict python3-psutil \
+          libgoogle-perftools-dev \
+          uuid-dev
+
+    - name: Checkout simview
+      uses: actions/checkout@v4
+      with:
+        fetch-depth: 0
+
+    - name: Use ccache
+      uses: hendrikmuhs/[email protected]
+      with:
+        key: build-cache
+
+    - name: Configure shell
+      run: |
+        echo 'PATH=/usr/lib/ccache:'"$PATH" >> $GITHUB_ENV
+        echo 'PREFIX=${GITHUB_WORKSPACE}/surelog-install' >> $GITHUB_ENV
+
+    - name: Show shell configuration
+      run: |
+        env
+
+    - name: Build Surelog
+      run: |
+        git clone --recursive --branch v1.75 https://github.com/chipsalliance/Surelog.git
+        (cd Surelog ; make install)
+
+    - name: Build
+      run: |
+        cmake -B build -GNinja -DCMAKE_PREFIX_PATH=${GITHUB_WORKSPACE}/surelog-install -DCMAKE_CXX_FLAGS="-Wall -W -Wextra -Werror"  .
+        ninja -C build
+
+    - name: Test
+      run: |
+        ninja -C build test
+
+  linux-build-nonvendored:
+    name: Build and Test (No Vendored Dependencies)
+
+    runs-on: ubuntu-latest
+    steps:
+
     - name: Install build dependencies for simview and surelog
       run: |
         sudo apt-get update -qq
         sudo apt install -y libunwind-dev
         sudo apt install -y \
-          build-essential cmake ninja-build \
-          g++ default-jre \
+          libunwind-dev \
+          build-essential \
+          cmake \
+          ninja-build \
+          g++ \
+          default-jre \
           google-perftools \
           python3 python3-dev python3-orderedmultidict python3-psutil \
           libgoogle-perftools-dev \
           uuid-dev
 
     - name: Checkout simview
-      uses: actions/checkout@v2
+      uses: actions/checkout@v4
       with:
         fetch-depth: 0
 
     - name: Use ccache
-      uses: hendrikmuhs/ccache-action@v1
+      uses: hendrikmuhs/ccache-action@v1.2
       with:
         key: build-cache
 
@@ -49,26 +107,35 @@ jobs:
       run: |
         env
 
+    - name: Install Abseil and GTest
+      run: |
+        git clone --depth 1 https://github.com/google/googletest.git
+        cd googletest && cmake -B build -DCMAKE_BUILD_TYPE=Release -DCMAKE_CXX_STANDARD=17 -DCMAKE_POSITION_INDEPENDENT_CODE=ON . && cmake --build build && sudo cmake --install build
+
+        git clone --depth 1 --branch 20230802.1 https://github.com/abseil/abseil-cpp.git
+        pushd abseil-cpp && cmake -B build -DCMAKE_BUILD_TYPE=Release -DCMAKE_CXX_STANDARD=17 -DCMAKE_POSITION_INDEPENDENT_CODE=ON . && cmake --build build && sudo cmake --install build
+
     - name: Build Surelog
       run: |
         git clone --recursive https://github.com/chipsalliance/Surelog.git
         (cd Surelog ; make install)
 
     - name: Build
       run: |
-        cmake -B build -GNinja -DCMAKE_PREFIX_PATH=${GITHUB_WORKSPACE}/surelog-install -DCMAKE_CXX_FLAGS="-Wall -W -Wextra -Werror"  .
+        cmake -B build -GNinja -DCMAKE_PREFIX_PATH=${GITHUB_WORKSPACE}/surelog-install -DCMAKE_CXX_FLAGS="-Wall -W -Wextra -Werror" -DSIMVIEW_USE_HOST_GTEST=ON -DSIMVIEW_USE_HOST_ABSL=ON  .
         ninja -C build
 
     - name: Test
       run: |
         ninja -C build test
 
+
   CodeFormatting:
     runs-on: ubuntu-latest
 
     steps:
     - name: Checkout code
-      uses: actions/checkout@v2
+      uses: actions/checkout@v4
       with:
         fetch-depth: 0
 

CMakeLists.txt

@@ -19,6 +19,11 @@ endif()
 set(CMAKE_CXX_FLAGS_DEBUG "-g -O0")
 set(CMAKE_CXX_FLAGS_RELEASE "-O3")
 
+# Options
+option(SIMVIEW_BUILD_TESTS "Build tests" ON)
+option(SIMVIEW_USE_HOST_ABSL "Use abseil from host" OFF)
+option(SIMVIEW_USE_HOST_GTEST "Use gtest from host" OFF)
+
 # Require out-of-source builds
 file(TO_CMAKE_PATH "${PROJECT_BINARY_DIR}/CMakeLists.txt" LOC_PATH)
 if(EXISTS "${LOC_PATH}")
@@ -41,8 +46,10 @@ endif()
 # Helper macros are defined in a separate file.
 include(macros.cmake)
 
-# Testing is good!
-enable_testing()
+if(SIMVIEW_BUILD_TESTS)
+  # Testing is good!
+  enable_testing()
+endif()
 
 # All include is relative to project root, or local dir.
 include_directories(${PROJECT_SOURCE_DIR})

external/CMakeLists.txt

@@ -1,23 +1,40 @@
-find_package(Git QUIET)
-if(GIT_FOUND AND EXISTS "${PROJECT_SOURCE_DIR}/.git")
-  # Update submodules as needed
-  option(GIT_SUBMODULE "Check submodules during build" ON)
-  if(GIT_SUBMODULE)
-    message(STATUS "Submodule update")
-    execute_process(COMMAND ${GIT_EXECUTABLE} submodule update --init --recursive
-                    WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
-                    RESULT_VARIABLE GIT_SUBMOD_RESULT)
-    if(NOT GIT_SUBMOD_RESULT EQUAL "0")
-      message(FATAL_ERROR "git submodule update --init failed with ${GIT_SUBMOD_RESULT}, please checkout submodules")
+
+if(NOT SIMVIEW_USE_HOST_ABSL OR (SIMVIEW_BUILD_TESTS AND NOT SIMVIEW_USE_HOST_GTEST))
+  find_package(Git QUIET)
+  if(GIT_FOUND AND EXISTS "${PROJECT_SOURCE_DIR}/.git")
+    # Update submodules as needed
+    option(GIT_SUBMODULE "Check submodules during build" ON)
+    if(GIT_SUBMODULE)
+      message(STATUS "Submodule update")
+      execute_process(COMMAND ${GIT_EXECUTABLE} submodule update --init --recursive
+                      WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
+                      RESULT_VARIABLE GIT_SUBMOD_RESULT)
+      if(NOT GIT_SUBMOD_RESULT EQUAL "0")
+        message(FATAL_ERROR "git submodule update --init failed with ${GIT_SUBMOD_RESULT}, please checkout submodules")
+      endif()
     endif()
   endif()
 endif()
 
-# Abseil can trigger this warning at current version.
-set(CMAKE_CXX_FLAGS  "${CMAKE_CXX_FLAGS} -Wno-maybe-uninitialized")
+if(NOT SIMVIEW_USE_HOST_ABSL)
+  # Abseil can trigger this warning at current version.
+  set(CMAKE_CXX_FLAGS  "-Wno-maybe-uninitialized")
+
+  # Add all expected submodules.
+  set(ABSL_PROPAGATE_CXX_STD ON)
+  add_subdirectory(abseil-cpp EXCLUDE_FROM_ALL)
+else()
+  find_package(absl CONFIG REQUIRED)
+  set_target_properties(absl::flat_hash_map PROPERTIES IMPORTED_GLOBAL True)
+  set_target_properties(absl::str_format PROPERTIES IMPORTED_GLOBAL True)
+  set_target_properties(absl::time PROPERTIES IMPORTED_GLOBAL True)
+endif()
+
+if(SIMVIEW_BUILD_TESTS AND NOT SIMVIEW_USE_HOST_GTEST)
+  add_subdirectory(googletest EXCLUDE_FROM_ALL)
+elseif(SIMVIEW_BUILD_TESTS)
+  find_package(GTest CONFIG)
+  set_target_properties(GTest::gtest_main PROPERTIES IMPORTED_GLOBAL True)
+endif()
 
-# Add all expected submodules.
-set(ABSL_PROPAGATE_CXX_STD ON)
-add_subdirectory(abseil-cpp EXCLUDE_FROM_ALL)
-add_subdirectory(googletest EXCLUDE_FROM_ALL)
 add_subdirectory(fst)

macros.cmake

@@ -1,6 +1,8 @@
 # Simplify testing definitions.
 macro(simview_add_test Name)
-  add_executable(${Name} ${ARGN})
-  target_link_libraries(${Name} PRIVATE gtest_main)
-  add_test(NAME ${Name} COMMAND ${Name})
+  if(SIMVIEW_BUILD_TESTS)
+    add_executable(${Name} ${ARGN})
+    target_link_libraries(${Name} PRIVATE gtest_main)
+    add_test(NAME ${Name} COMMAND ${Name})
+  endif()
 endmacro()