Add Release Github-Action

Author: ankitkhushwaha

cookiecutter.json

@@ -45,5 +45,21 @@
         "documentation_url": "Documentation URL, optional",
         "changelog_url": "URL to the changelog, optional",
         "issue_tracker_url": "URL to the issue tracker, optional"
-    }
+    },
+    "all_repos" : [
+        "sunpy/sunpy",
+        "sunpy/ndcube",
+        "sunpy/sunkit-magex",
+        "sunpy/streamtracer",
+        "sunpy/sunkit-dem",
+        "sunpy/mpl-animators",
+        "sunpy/sunkit-image",
+        "sunpy/sunkit-pyvista",
+        "sunpy/sunpy-soar",
+        "sunpy/sunkit-instruments",
+        "sunpy/drms",
+        "sunpy/sunraster",
+        "sunpy/sunkit-spex",
+        "sunpy/radiospectra"
+    ]
 }

{{ cookiecutter.package_name }}/.github/workflows/ci.yml

@@ -122,3 +122,34 @@ jobs:
 {%- endif %}
     secrets:
       pypi_token: {{ '${{ secrets.pypi_token }}' }}
+{%- if cookiecutter.github_repo in cookiecutter.all_repos %}
+  release:
+    if: startsWith(github.ref, 'refs/tags/v')
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write
+      actions: none
+      checks: none
+      deployments: none
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+      - name: Install Pandoc
+        run: sudo apt-get update && sudo apt-get install -y pandoc
+      - name: Generate GitHub Release Notes
+        run: |
+          pip install bleach
+          pandoc --wrap=none -t markdown_strict CHANGELOG.rst > notes.md
+          python3 -c "import bleach, sys; print(bleach.clean(sys.stdin.read()))" < notes.md > release_notes.md
+          { echo "RELEASE_BODY<<EOF"; cat release_notes.md; echo "EOF"; } >> $GITHUB_ENV
+      - name: Create GitHub Release
+        uses: "actions/[email protected]"
+        env:
+          GITHUB_TOKEN: {{ '${{ secrets.GITHUB_TOKEN }}' }}
+        with:
+          tag_name: {{ '${{ github.ref }}' }}
+          release_name: {{ '${{ github.ref_name }}' }}
+          body: {{ '${{ env.RELEASE_BODY }}' }}
+          draft: false
+          prerelease: false
+{%- endif %}