[.NET, CI] Add workflow for building native libs needed for Nuget pkg

.github/workflows/nuget.yml

@@ -0,0 +1,130 @@
+name: Build Nuget package native libraries
+
+on:
+  workflow_dispatch:
+    # allow manual triggering of this workflow
+    inputs:
+      outgoing_ref:
+        description: "The ref to be built. Can be a tag, commit hash, or branch name"
+        required: true
+        default: "main"
+  push:
+    # Run when the main branch is pushed to
+    branches:
+      - main
+  pull_request:
+    # Build when a pull request targets main
+    branches:
+      - main
+
+# use oldest version of OS runner availability for maximum backward compatibility
+# this workflow identifies different builds by their .NET Runtime Identifier (RID)
+# for consistency with the Nuget packaging scheme
+jobs:
+  linux-x64:
+    name: Build linux-x64 native lib
+    runs-on: ubuntu-20.04
+    timeout-minutes: 60
+    steps:
+      - uses: actions/checkout@v3
+        name: Checkout the repository
+        with:
+          submodules: recursive
+      - name: Setup Python
+        uses: actions/setup-python@v4
+        with:
+          python-version: "3.11"
+          architecture: x64
+      - name: Install Apt dependencies
+        run: |
+          sudo apt update
+          sudo apt install libboost-dev scons
+          # todo blas and lapack
+          gcc --version
+      - name: Build Cantera
+        run: |
+          python3 `which scons` build env_vars=all -j2 debug=n --debug=time \
+          system_fmt=n python_package=n
+      - name: Upload native library
+        uses: actions/upload-artifact@v3
+        with:
+          path: build/lib/libcantera_shared.so
+          name: libcantera_shared.so-linux-64
+          retention-days: 7
+
+  win-x64:
+    name: Build win-x64 native lib
+    runs-on: windows-2019
+    timeout-minutes: 60
+    env:
+      BOOST_ROOT: ${{github.workspace}}/3rdparty/boost
+      BOOST_URL: https://boostorg.jfrog.io/artifactory/main/release/1.78.0/source/boost_1_78_0.7z
+    steps:
+      - uses: actions/checkout@v3
+        name: Checkout the repository
+        with:
+          submodules: recursive
+      - name: Set Up Python
+        uses: actions/setup-python@v4
+        with:
+          python-version: "3.11"
+          architecture: x64
+      - name: Install Python dependencies
+        run: |
+          python -m pip install -U pip
+          python -m pip install '"scons<4.4.0"'
+      - name: Restore Boost cache
+        uses: actions/cache@v3
+        id: cache-boost
+        with:
+          path: ${{env.BOOST_ROOT}}
+          key: boost-178-win
+      - name: Install Boost Headers
+        if: steps.cache-boost.outputs.cache-hit != 'true'
+        run: |
+          BOOST_ROOT=$(echo $BOOST_ROOT | sed 's/\\/\//g')
+          mkdir -p $BOOST_ROOT
+          curl --progress-bar --location --output $BOOST_ROOT/download.7z $BOOST_URL
+          7z -o$BOOST_ROOT x $BOOST_ROOT/download.7z -y -bd boost_1_78_0/boost
+          mv $BOOST_ROOT/boost_1_78_0/boost $BOOST_ROOT/boost
+          rm $BOOST_ROOT/download.7z
+        shell: bash
+      - name: Build Cantera
+        run: scons build -j2 boost_inc_dir=%BOOST_ROOT% debug=n logging=debug
+          python_package=n env_vars=USERPROFILE,GITHUB_ACTIONS
+          msvc_version=14.1 f90_interface=n --debug=time
+        shell: cmd
+      - name: Upload native library
+        uses: actions/upload-artifact@v3
+        with:
+          path: build/lib/cantera_shared.dll
+          name: cantera_shared.dll-win-64
+          retention-days: 7
+
+  osx-x64:
+    name: Build osx-x64 native lib
+    runs-on: macos-11
+    timeout-minutes: 90
+    steps:
+      # Attempt to fix intermittent cloning errors. The error message says something like
+      # error: RPC failed; curl 18 transfer closed with outstanding read data remaining
+      # The clone is already being done with --depth=1, so the next recommended fix is to
+      # increase the buffer size. See also:
+      # https://github.com/actions/virtual-environments/issues/2198
+      # https://stackoverflow.com/q/38618885
+      - name: Configure git
+        run: /usr/local/bin/git config --global http.postBuffer 1048576000
+      - uses: actions/checkout@v3
+        name: Checkout the repository
+        with:
+          submodules: recursive
+      - name: Install Brew dependencies
+        run: brew install --display-times boost scons
+      - name: Build Cantera
+        run: scons build env_vars=all -j3 python_package=n debug=n --debug=time
+      - name: Upload shared library
+        uses: actions/upload-artifact@v3
+        with:
+          path: build/lib/libcantera_shared.dylib
+          name: libcantera_shared.dylib-osx-x64
+          retention-days: 7