Refactoring & test FsGrid

.clang-format

@@ -0,0 +1,14 @@
+---
+BasedOnStyle:  LLVM
+UseTab: Never
+IndentWidth: 3
+TabWidth: 3
+BreakBeforeBraces: Attach
+PointerAlignment: Left
+AlignAfterOpenBracket: true
+AllowShortIfStatementsOnASingleLine: false
+IndentCaseLabels: false
+ColumnLimit: 120
+AccessModifierOffset: -3
+...
+

.github/workflows/cmake_single_platform.yml

@@ -0,0 +1,58 @@
+name: CMake build and test fsgrid
+
+on:
+  push:
+    branches: [ "master", "development", "ctest_gtest" ]
+  pull_request:
+    branches: [ "master", "development", "ctest_gtest" ]
+
+env:
+  # Customize the CMake build type here (Release, Debug, RelWithDebInfo, etc.)
+  BUILD_TYPE: Release
+  PROJECT_NAME: fsgrid
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v4
+
+    - name: Install OpenMPI
+      run: >
+        sudo apt-get install
+        openmpi-bin
+        libopenmpi-dev
+        openmpi-common
+
+    - name: Configure CMake
+      run: >
+        cmake
+        -B ${{github.workspace}}/build
+        -DCMAKE_BUILD_TYPE=${{env.BUILD_TYPE}}
+        -Dproject_name=${{env.PROJECT_NAME}}
+        -DMPI_TEST_NUM_PROCS=16
+        -DMPI_TEST_EXTRA_FLAGS=--oversubscribe
+
+    - name: Build
+      run: >
+        cmake
+        --build ${{github.workspace}}/build
+        --config ${{env.BUILD_TYPE}}
+
+    - name: Test
+      id: test
+      working-directory: ${{github.workspace}}
+      run: >
+        ctest
+        --test-dir ${{github.workspace}}/build/
+        -C ${{env.BUILD_TYPE}}
+        --output-on-failure
+        --output-log ${{github.workspace}}/build/github_test_log.log
+
+    - name: Archive test logs
+      if: always()
+      uses: actions/upload-artifact@v4
+      with:
+        name: test-logs
+        path: ${{github.workspace}}/build/github_test_log.log

.gitignore

@@ -26,3 +26,10 @@
 *.exe
 *.out
 *.app
+
+# directories to ignore
+build/
+.cache/
+
+# compile_commands
+compile_commands.json

CMakeLists.txt

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+cmake_minimum_required(VERSION 3.18...3.24)
+
+project(${project_name} VERSION 1.0 DESCRIPTION "Fsgrid testing with ctest and googletest" LANGUAGES CXX)
+
+set(CMAKE_CXX_STANDARD 20)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+
+# Download googletest as a dependency
+include(FetchContent)
+FetchContent_Declare(
+  googletest
+  GIT_REPOSITORY https://github.com/google/googletest.git
+  GIT_TAG        f8d7d77c06936315286eb55f8de22cd23c188571 # release-1.14.0
+)
+FetchContent_MakeAvailable(googletest)
+
+include(CTest)
+enable_testing()
+
+set(gcc "$<COMPILE_LANG_AND_ID:CXX,ARMClang,AppleClang,Clang,GNU,LCC>")
+
+set(debug_gcc "$<AND:$<CONFIG:Debug>,${gcc}>")
+
+set(gcc_warn -Wall;-Werror;-Wextra;-Wconversion;-Wsign-conversion;)
+set(gcc_warn ${gcc_warn};-pedantic-errors;-Wcast-qual;-Wwrite-strings;)
+set(gcc_warn ${gcc_warn};-Wcast-align=strict;-Wparentheses;)
+set(gcc_warn ${gcc_warn};-Wlogical-op;-Wlogical-not-parentheses;)
+set(gcc_warn ${gcc_warn};-Wredundant-decls;-Wformat=2;)
+set(gcc_warn ${gcc_warn};-Wformat-security;-Wformat-nonliteral;)
+set(gcc_warn ${gcc_warn};-Wnull-dereference;-Winit-self;-Wuninitialized;)
+set(gcc_warn ${gcc_warn};-Warith-conversion;-Wduplicated-branches;)
+set(gcc_warn ${gcc_warn};-Wpointer-arith;-Wundef;)
+set(gcc_warn ${gcc_warn};-Wduplicated-cond;-Wformat-signedness;)
+
+set(gcc_deb_opt -Og;)
+set(gcc_rel_opt -O3;)
+
+add_compile_options(
+    "$<${gcc}:${gcc_warn}>"
+    "$<IF:${debug_gcc},${gcc_deb_opt},${gcc_rel_opt}>"
+    )
+
+# This must be after the add_compile_options for it to have any effect
+add_subdirectory(tests)

Makefile

@@ -0,0 +1,30 @@
+MAKEFLAGS += --silent
+
+project_name:=fsgrid
+root_dir:=$(shell dirname $(realpath $(firstword $(MAKEFILE_LIST))))
+source_dir:=$(root_dir)
+build_dir_prefix:=$(root_dir)/build
+
+.PHONY: all test clean
+
+.ONESHELL:
+all:
+	build_type=Release
+	build_dir=$(build_dir_prefix)/$${build_type}
+	cmake \
+		-B $${build_dir} \
+		-S $(source_dir) \
+		-DCMAKE_BUILD_TYPE:STRING=$${build_type} \
+		-Dproject_name=$(project_name) \
+		-DMPI_TEST_NUM_PROCS=16 \
+		-DCMAKE_EXPORT_COMPILE_COMMANDS=ON
+	cmake \
+		--build $${build_dir} \
+		-j8
+	cp $${build_dir}/compile_commands.json $(source_dir)
+
+clean:
+	rm -rf $(build_dir_prefix) $(project_name)
+
+test: all
+	ctest --test-dir $(build_dir_prefix)/Release --output-on-failure