From 3c09958c331666add7a83892cd1814a0f5d1bfe1 Mon Sep 17 00:00:00 2001
From: Matthew Thompson <matthew.thompson@nasa.gov>
Date: Wed, 4 Sep 2024 11:45:03 -0400
Subject: [PATCH] Add flang to CI

---
 .github/workflows/main.yml | 56 ++++++++++++++++++++++++++++++++++++++
 ChangeLog.md               |  1 +
 2 files changed, 57 insertions(+)

diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index d187e8b..56266de 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -224,3 +224,59 @@ jobs:
           path: |
             build/**/*.log
 
+  Flang:
+    runs-on: ubuntu-latest
+    container: gmao/llvm-flang:latest
+    env:
+      FC: flang-new
+
+    name: Flang
+    steps:
+      - name: Versions
+        run: |
+          ${FC} --version
+          cmake --version
+
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 1
+
+      - name: Set all directories as git safe
+        run: |
+          git config --global --add safe.directory '*'
+
+      - name: Add python-is-python3 package
+        run: |
+          apt-get update
+          apt-get install -y python-is-python3
+
+      - name: Build GFE Prereqs
+        run: |
+          bash ./tools/ci-install-gfe.bash
+
+      - name: Build pFlogger
+        run: |
+          mkdir -p build
+          cd build
+          cmake .. -DCMAKE_Fortran_COMPILER=${FC} -DCMAKE_INSTALL_PREFIX=${HOME}/Software/pFlogger -DCMAKE_PREFIX_PATH=${HOME}/Software/GFE
+          make -j4
+
+      - name: Build Tests
+        run: |
+          cd build
+          make -j4 tests
+
+      - name: Run Tests
+        run: |
+          cd build
+          ctest -j1 --output-on-failure --repeat until-pass:4
+
+      - name: Archive log files on failure
+        uses: actions/upload-artifact@v4
+        if: failure()
+        with:
+          name: logfiles
+          path: |
+            build/**/*.log
+
diff --git a/ChangeLog.md b/ChangeLog.md
index d5ed8c7..b9bb5ab 100644
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -17,6 +17,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Modified CMake logic to build entirely separate library (pflogger-with-mock) to support testing with mocks. Previous cheat to link pflogger against real MPI for runs but mock MPI for tests did not work with LLVM.   Seems to be due to some encryption type protection on module info.
 - Update CI to have `gfortran-10` and `gfortran-11` only on `ubuntu-22.04`
 - Update CI NVIDIA to NVHPC 24.7
+- Add Flang to CI
 
 ## [1.15.0] - 2024-05-17