Added Github action to build wheels.

.github/workflows/build.yml

@@ -0,0 +1,59 @@
+name: build
+
+on:
+  push:
+    branches: master
+  pull_request:
+    branches: master
+
+# cancels prior builds for this workflow when new commit is pushed
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  setup:
+    name: Install dependencies
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest, macos-latest, windows-latest]
+        python-version: ['3.9', '3.10', '3.11']
+        ipopt-version: ['3.14']
+    env:
+      PYTHON_VERSION: ${{ matrix.python-version }}
+    defaults:
+      run:
+        shell: bash -l {0}
+    steps:
+      - name: Set Additional Envs
+        shell: bash
+        run: |
+          echo "PYTHON_SUBVERSION=$(echo $PYTHON_VERSION | cut -c 3-)" >> $GITHUB_ENV
+      - name: Checkout CyIpopt
+        uses: actions/checkout@v2
+      - uses: conda-incubator/setup-miniconda@v2
+        with:
+          auto-update-conda: true
+          activate-environment: test-environment
+          python-version: ${{ matrix.python-version }}
+          channels: conda-forge
+          miniforge-variant: Mambaforge
+      - name: Install basic dependencies
+        run: |
+          mamba install -q -y cython>=0.26 "ipopt=${{ matrix.ipopt-version }}" numpy>=1.15 pkg-config>=0.29.2 setuptools>=39.0
+          mamba list
+      - name: Build wheels
+        uses: pypa/[email protected]
+      - uses: actions/upload-artifact@v3
+        with:
+          path: ./wheelhouse/*.whl
+      #- name: Build wheel
+        #run: |
+          #python setup.py bdist_wheel --dist-dir=wheelhouse
+          #for wheel in wheelhouse/*.whl; do auditwheel repair $wheel; done
+          #unzip -l wheelhouse/*.whl
+          #mamba remove ipopt numpy
+          #python -m pip install wheelhouse/*.whl
+          #python examples/hs071.py