[add] Added release automation (creates drafts automatically and pushes to pypi on release) (#98)

Co-authored-by: Roi Lipman <[email protected]>

Author: filipecosta90

.github/release-drafter-config.yml

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+name-template: 'Version $NEXT_PATCH_VERSION'
+tag-template: 'v$NEXT_PATCH_VERSION'
+categories:
+  - title: 'Features'
+    labels:
+      - 'feature'
+      - 'enhancement'
+  - title: 'Bug Fixes'
+    labels:
+      - 'fix'
+      - 'bugfix'
+      - 'bug'
+  - title: 'Maintenance'
+    label: 'chore'
+change-template: '- $TITLE @$AUTHOR (#$NUMBER)'
+exclude-labels:
+  - 'skip-changelog'
+template: |
+  ## Changes
+
+  $CHANGES

.github/workflows/check-pypi.yml

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+
+name: Check if required secrets are set to publish to Pypi
+
+on: push
+
+jobs:
+  checksecret:
+    name: check if PYPI_TOKEN and TESTPYPI_TOKEN are set in github secrets
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check PYPI_TOKEN
+        env:
+          PYPI_TOKEN: ${{ secrets.PYPI_TOKEN }}
+        run: |
+          if ${{ env.PYPI_TOKEN == '' }} ; then
+            echo "PYPI_TOKEN secret is not set"
+            exit 1
+          fi
+      - name: Check TESTPYPI_TOKEN
+        env:
+          TESTPYPI_TOKEN: ${{ secrets.TESTPYPI_TOKEN }}
+        run: |
+          if ${{ env.TESTPYPI_TOKEN == '' }} ; then
+            echo "TESTPYPI_TOKEN secret is not set"
+            exit 1
+          fi
+
+

.github/workflows/publish-pypi.yml

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+name: Publish Pypi
+on:
+  release:
+    types: [published]
+
+jobs:
+  publish:
+    name: publish
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@master
+      - name: Set up Python 2.7
+        uses: actions/setup-python@v1
+        with:
+          python-version: 2.7
+
+      - name: Install twine
+        run: |
+            pip install twine
+
+      - name: Install wheel
+        run: |
+            pip install wheel
+
+      - name: Create a source distribution
+        run: |
+          python setup.py sdist
+
+      - name: Create a wheel
+        run: |
+            python setup.py bdist_wheel
+
+      - name: Create a .pypirc
+        run: |
+            echo -e "[pypi]" >> ~/.pypirc
+            echo -e "username = __token__" >> ~/.pypirc
+            echo -e "password = ${{ secrets.PYPI_TOKEN }}" >> ~/.pypirc
+            echo -e "[testpypi]" >> ~/.pypirc
+            echo -e "username = __token__" >> ~/.pypirc
+            echo -e "password = ${{ secrets.TESTPYPI_TOKEN }}" >> ~/.pypirc
+
+      - name: Publish to Test PyPI
+        if: github.event_name == 'release'
+        run: |
+          twine upload --skip-existing -r testpypi dist/*
+
+      - name: Publish to PyPI
+        if: github.event_name == 'release'
+        run: |
+          twine upload -r pypi dist/*

.github/workflows/release-drafter.yml

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+name: Release Drafter
+
+on:
+  push:
+    # branches to consider in the event; optional, defaults to all
+    branches:
+      - master
+
+jobs:
+  update_release_draft:
+    runs-on: ubuntu-latest
+    steps:
+      # Drafts your next Release notes as Pull Requests are merged into "master"
+      - uses: release-drafter/release-drafter@v5
+        with:
+          # (Optional) specify config name to use, relative to .github/. Default: release-drafter.yml
+           config-name: release-drafter-config.yml
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}