From 9102a712cbcf5e1fec197a447235458c02df87e9 Mon Sep 17 00:00:00 2001
From: Alex Richert <alexander.richert@noaa.gov>
Date: Thu, 9 Nov 2023 14:57:29 -0800
Subject: [PATCH] Add IntelLLVM support (+Intel-based CI)

---
 .github/workflows/Intel.yml | 78 +++++++++++++++++++++++++++++++++++++
 CMakeLists.txt              |  2 +-
 src/CMakeLists.txt          |  2 +-
 3 files changed, 80 insertions(+), 2 deletions(-)
 create mode 100644 .github/workflows/Intel.yml

diff --git a/.github/workflows/Intel.yml b/.github/workflows/Intel.yml
new file mode 100644
index 0000000..8bab3aa
--- /dev/null
+++ b/.github/workflows/Intel.yml
@@ -0,0 +1,78 @@
+name: Intel
+on:
+  push:
+    branches:
+    - develop
+  pull_request:
+    branches:
+    - develop
+
+# Use custom shell with -l so .bash_profile is sourced which loads intel/oneapi/setvars.sh
+# without having to do it in manually every step
+defaults:
+  run:
+    shell: bash -leo pipefail {0}
+
+jobs:
+  Intel:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        compilers: ["CC=icc FC=ifort", "CC=icx FC=ifx"]
+
+    steps:
+
+    # See https://software.intel.com/content/www/us/en/develop/articles/oneapi-repo-instructions.html
+    - name: install-intel
+      run: |
+        cd /tmp
+        wget https://apt.repos.intel.com/intel-gpg-keys/GPG-PUB-KEY-INTEL-SW-PRODUCTS.PUB
+        sudo apt-key add GPG-PUB-KEY-INTEL-SW-PRODUCTS.PUB
+        rm GPG-PUB-KEY-INTEL-SW-PRODUCTS.PUB
+        echo "deb https://apt.repos.intel.com/oneapi all main" | sudo tee /etc/apt/sources.list.d/oneAPI.list
+        sudo apt-get update
+        sudo apt-get install intel-oneapi-compiler-fortran intel-oneapi-compiler-dpcpp-cpp-and-cpp-classic
+        echo "source /opt/intel/oneapi/setvars.sh" >> ~/.bash_profile
+
+    - 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-${{ runner.os }}-${{ matrix.compilers }}
+
+    - name: build-pfunit
+      if: steps.cache-pfunit.outputs.cache-hit != 'true'
+      run: |
+        cd pfunit
+        mkdir build
+        cd build
+        ${{ matrix.compilers }} cmake .. -DSKIP_MPI=YES -DSKIP_ESMF=YES -DSKIP_FHAMCREST=YES -DCMAKE_INSTALL_PREFIX=~/pfunit -DCMAKE_BUILD_TYPE=Release
+        make -j2 VERBOSE=1
+        make install
+
+    - name: checkout
+      uses: actions/checkout@v4
+      with: 
+        path: sfcio
+        submodules: true
+
+    - name: build
+      run: |
+        cd sfcio
+        mkdir build 
+        cd build
+        ${{ matrix.compilers }} cmake .. -DENABLE_TESTS=ON -DCMAKE_PREFIX_PATH="~/pfunit"
+        make -j2 VERBOSE=1
+    
+    - name: test
+      run: |
+        cd $GITHUB_WORKSPACE/sfcio/build
+        make test VERBOSE=1
+
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 32901d2..84d009d 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -21,7 +21,7 @@ if(NOT CMAKE_BUILD_TYPE MATCHES "^(Debug|Release|RelWithDebInfo|MinSizeRel)$")
                                                "MinSizeRel" "RelWithDebInfo")
 endif()
 
-if(NOT CMAKE_Fortran_COMPILER_ID MATCHES "^(Intel|GNU|Clang|AppleClang)$")
+if(NOT CMAKE_Fortran_COMPILER_ID MATCHES "^(Intel|IntelLLVM|GNU|Clang|AppleClang)$")
   message(
     WARNING "Compiler not officially supported: ${CMAKE_Fortran_COMPILER_ID}")
 endif()
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index f69f26a..bdaf3e4 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -2,7 +2,7 @@
 #
 # Mark Potts, Kyle Gerheiser
 
-if(CMAKE_Fortran_COMPILER_ID MATCHES "^(Intel)$")
+if(CMAKE_Fortran_COMPILER_ID MATCHES "^(Intel|IntelLLVM)$")
   set(CMAKE_Fortran_FLAGS
       "-g -traceback -free -convert big_endian -assume byterecl ${CMAKE_Fortran_FLAGS}")
   set(CMAKE_Fortran_FLAGS_RELEASE "-O2")