Automatic releasing (#176)

* Automatic releasing

* Update dev-environment.yml

Author: martinRenou

.github/workflows/release.yml

@@ -0,0 +1,43 @@
+name: Publish Package
+
+on:
+  release:
+    types: [published]
+
+defaults:
+  run:
+    shell: bash -l {0}
+
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v2
+
+    - name: Setup conda
+      uses: conda-incubator/setup-miniconda@v2
+      with:
+        activate-environment: ipycanvas-dev
+        environment-file: dev-environment.yml
+        python-version: ${{ matrix.python-version }}
+        mamba-version: "*"
+        auto-activate-base: false
+        channels: conda-forge
+
+    - name: Build package
+      run: python setup.py sdist bdist_wheel
+
+    - name: Publish the Python package
+      env:
+        TWINE_USERNAME: __token__
+        TWINE_PASSWORD: ${{ secrets.PYPI_API_TOKEN }}
+      run: twine upload dist/ipycanvas*
+
+    - name: Publish the NPM package
+      run: |
+        yarn install && yarn run build
+        npm publish
+      env:
+        NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}
+        PRE_RELEASE: ${{ github.event.release.prerelease }}

dev-environment.yml

@@ -8,3 +8,6 @@ dependencies:
     - jupyterlab=3
     - ipywidgets>=7.6
     - flake8
+    - setuptools
+    - wheel
+    - twine