Add nuopc shr methods

.github/actions/buildshare/action.yaml

@@ -0,0 +1,46 @@
+name: SHARE build and cache
+description: 'Build the SHARE library'
+inputs:
+  share_version:
+    description: 'Tag in the SHARE repository to use'
+    default: main
+    required: False
+    type: string
+  pio_path:
+    description: 'Path to the installed parallelio code root'
+    default: $HOME/pio
+    required: False
+    type: string
+  esmfmkfile:
+    description: 'Path to the installed ESMF library mkfile'
+    default: $HOME/ESMF/lib/libg/Linux.gfortran.64.openmpi.default/esmf.mk 
+    required: False
+    type: string
+  src_root:
+    description: 'Path to share source'
+    default: $GITHUB_WORKSPACE
+    required: False
+    type: string
+  cmake_flags:
+    description: 'Extra flags for cmake command'
+    default: -Wno-dev
+    required: False
+    type: string
+  install_prefix:
+    description: 'Install path of share'
+    default: $HOME/share
+    required: False
+    type: string
+runs:
+  using: composite
+  steps:
+    - id : Build-SHARE
+      shell: bash
+      run: |
+        mkdir build-share
+        pushd build-share
+        export ESMFMKFILE=${{ inputs.esmfmkfile }}
+        export PIO_ROOT=${{ inputs.pio_path }}
+        cmake ${{ inputs.cmake_flags }} ${{ inputs.src_root }}
+        make VERBOSE=1
+        popd

.github/workflows/extbuild.yml

@@ -0,0 +1,77 @@
+# This is a workflow to compile the share source without cime
+name: extbuild
+# Controls when the action will run. Triggers the workflow on push or pull request
+# events but only for the main branch
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+# A workflow run is made up of one or more jobs that can run sequentially or in parallel
+jobs:
+  build-share:
+    runs-on: ubuntu-latest
+    env:
+      CC: mpicc
+      FC: mpifort
+      CXX: mpicxx
+      CPPFLAGS: "-I/usr/include -I/usr/local/include "
+      LDFLAGS: "-L/usr/lib/x86_64-linux-gnu "
+      # Versions of all dependencies can be updated here - these match tag names in the github repo
+      ESMF_VERSION: v8.6.1
+      ParallelIO_VERSION: pio2_6_2
+    steps:
+      - id: checkout-share
+        uses: actions/checkout@v4
+      - id: load-env
+        run: |
+          sudo apt-get update
+          sudo apt-get install gfortran
+          sudo apt-get install wget
+          sudo apt-get install openmpi-bin libopenmpi-dev
+          sudo apt-get install netcdf-bin libnetcdf-dev libnetcdff-dev
+          sudo apt-get install pnetcdf-bin libpnetcdf-dev
+      - name: Cache PARALLELIO
+        id: cache-PARALLELIO
+        uses: actions/cache@v4
+        with:
+          path: ${GITHUB_WORKSPACE}/pio
+          key: ${{ runner.os }}-${{ env.ParallelIO_VERSION }}-pio
+      - name: Build ParallelIO
+        if: steps.cache-PARALLELIO.outputs.cache-hit != 'true'
+        uses: NCAR/ParallelIO/.github/actions/parallelio_cmake@9390e30e29d4ebbfbef0fc72162cacd9e8f25e4e
+        with:
+          parallelio_version: ${{ env.ParallelIO_VERSION }}
+          enable_fortran: True
+          install_prefix: ${GITHUB_WORKSPACE}/pio
+      - name: Install ESMF
+        uses: esmf-org/install-esmf-action@v1
+        env:
+          ESMF_COMPILER: gfortran
+          ESMF_BOPT: g
+          ESMF_COMM: openmpi
+          ESMF_NETCDF: nc-config
+          ESMF_PNETCDF: pnetcdf-config
+          ESMF_INSTALL_PREFIX: ${GITHUB_WORKSPACE}/ESMF
+          ESMF_PIO: external
+          ESMF_PIO_INCLUDE: ${GITHUB_WORKSPACE}/pio/include
+          ESMF_PIO_LIBPATH: ${GITHUB_WORKSPACE}/pio/lib
+        with:
+          version: ${{ env.ESMF_VERSION }}
+          esmpy: false
+          cache: true
+
+      - name: Build SHARE
+        uses: ./.github/actions/buildshare
+        with:
+          esmfmkfile: $ESMFMKFILE
+          pio_path: ${GITHUB_WORKSPACE}/pio
+          src_root: ${GITHUB_WORKSPACE}
+          cmake_flags: " -Wno-dev -DCMAKE_BUILD_TYPE=DEBUG -DWERROR=ON  -DCMAKE_Fortran_FLAGS=\"-DCPRGNU -g -Wall \
+          -ffree-form -ffree-line-length-none -fallow-argument-mismatch\" \
+          -DCMAKE_MODULE_PATH=$ESMF_ROOT/cmake"
+      - name: Test CDEPS
+        run: |
+          cd build-share
+          make VERBOSE=1