ci: add release workflow

Author: ksm2

.github/workflows/release.yml

@@ -0,0 +1,46 @@
+name: Release
+
+on:
+  workflow_dispatch:
+    inputs:
+      version:
+        description: 'Next Version'
+        required: true
+
+env:
+  python_version: '3.x'
+
+permissions:
+  contents: write
+
+jobs:
+  release:
+    runs-on: ubuntu-latest
+    timeout-minutes: 10
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          token: ${{ secrets.release_token }}
+
+      - name: Set author in Git
+        run: |
+          git config user.name github-actions
+          git config user.email [email protected]
+
+      - uses: actions/setup-python@v5
+        with:
+          python-version: ${{ env.python_version }}
+
+      - name: Bump version
+        run: |
+          python .scripts/bump.py ${{ github.event.inputs.version }}
+          git commit --message ${{ github.event.inputs.version }} setup.py
+          git tag v${{ github.event.inputs.version }}
+
+      - name: Push release commit
+        run: git push --tags origin ${{ github.ref_name }}
+
+      - uses: ncipollo/release-action@v1
+        with:
+          tag: v${{ github.event.inputs.version }}
+          draft: true

.scripts/bump.py

@@ -0,0 +1,28 @@
+import re
+import sys
+from os import path
+
+if len(sys.argv) < 2:
+    raise Exception("Please provide a new version number:\n\tbump.py <VERSION>")
+
+new_version = sys.argv[1]
+setup_file = path.realpath(path.join(path.dirname(__file__), "..", "setup.py"))
+
+with open(setup_file, "r") as file:
+    lines = file.readlines()
+
+changed = False
+for i, line in enumerate(lines):
+    if "version=" in line:
+        line = re.sub(r'"[^"]+"', '"' + new_version + '"', line)
+        if line != lines[i]:
+            lines[i] = line
+            changed = True
+
+if changed:
+    with open(setup_file, "w") as file:
+        file.writelines(lines)
+        print("setup.py changed to version: " + new_version)
+else:
+    print("setup.py did not change")
+    sys.exit(1)