CMake build for ip2 (#5)

CMake build for ip2 along with changes to repo layout

.github/workflows/main.yml

@@ -0,0 +1,69 @@
+name: Build and Test
+on: [push, pull_request]
+
+jobs:
+  build:
+    runs-on: ubuntu-20.04
+    env:
+      FC: gfortran-9
+      CC: gcc-9
+
+    steps:
+
+    - name: checkout-pfunit
+      uses: actions/checkout@v2
+      with:
+        repository: Goddard-Fortran-Ecosystem/pFUnit
+        path: pfunit
+
+    - name: cache-pfunit
+      id: cache-pfunit
+      uses: actions/cache@v2
+      with:
+        path: ~/pfunit
+        key: pfunit-${{ runner.os }}-${{ hashFiles('pfunit/VERSION') }}
+
+    - name: build-pfunit
+      if: steps.cache-pfunit.outputs.cache-hit != 'true'
+      run: |
+        cd pfunit
+        mkdir build
+        cd build
+        cmake .. -DSKIP_MPI=YES -DSKIP_ESMF=YES -DSKIP_FHAMCREST=YES -DCMAKE_INSTALL_PREFIX=~/pfunit
+        make -j2
+        make install
+
+    - name: checkout-sp
+      uses: actions/checkout@v2
+      with:
+        repository: NOAA-EMC/NCEPLIBS-sp
+        path: sp
+        ref: develop
+
+    - name: build-sp
+      run: |
+        cd sp
+        mkdir build
+        cd build
+        cmake .. -DCMAKE_INSTALL_PREFIX=~/sp
+        make -j2
+        make install
+
+    - name: checkout
+      uses: actions/checkout@v2
+      with: 
+        path: ip2
+        submodules: true
+
+    - name: build
+      run: |
+        cd ip2
+        mkdir build 
+        cd build
+        cmake .. -DENABLE_TESTS=ON -DCMAKE_PREFIX_PATH="~/pfunit;~/"
+        make -j2
+    
+    - name: test
+      run: |
+        cd $GITHUB_WORKSPACE/ip2/build
+        make test

.gitignore

@@ -0,0 +1,9 @@
+build/
+install/
+
+*.[ao]
+*.mod
+*.so
+*DS_Store
+
+*.swp

CMakeLists.txt

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+cmake_minimum_required(VERSION 3.15)
+
+file(STRINGS "VERSION" pVersion)
+
+project(
+  ip2
+  VERSION ${pVersion}
+  LANGUAGES Fortran)
+
+option(OPENMP "use OpenMP threading" OFF)
+option(ENABLE_TESTS "Build pfunit tests?" OFF)
+
+if(NOT CMAKE_BUILD_TYPE MATCHES "^(Debug|Release|RelWithDebInfo|MinSizeRel)$")
+  message(STATUS "Setting build type to 'Release' as none was specified.")
+  set(CMAKE_BUILD_TYPE "Release" CACHE STRING "Choose the type of build." FORCE)
+  set_property(CACHE CMAKE_BUILD_TYPE PROPERTY STRINGS "Debug" "Release" "MinSizeRel" "RelWithDebInfo")
+endif()
+
+if(NOT CMAKE_Fortran_COMPILER_ID MATCHES "^(Intel|GNU)$")
+  message(WARNING "Compiler not officially supported: ${CMAKE_Fortran_COMPILER_ID}")
+endif()
+
+if(OPENMP)
+  find_package(OpenMP REQUIRED COMPONENTS Fortran)
+endif()
+
+find_package(sp REQUIRED)
+
+add_subdirectory(src)
+
+if (ENABLE_TESTS)
+  find_package(PFUNIT REQUIRED)
+  enable_testing()
+  add_subdirectory(tests)
+endif()