feat: added autotagger workflow

.forgejo/workflows/autotagger.yaml

@@ -0,0 +1,66 @@
+name: Autotagger
+on:
+  push:
+    branches:
+      - 'main'
+
+jobs:
+  Autotagger:
+    runs-on: docker
+    container: catthehacker/ubuntu:act-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Set up Git
+        run: |
+          git config --global user.name "SeaswimmerTheFsh"
+          git config --global user.email "seaswimmerthefsh@gmail.com"
+
+      - name: Import GPG key
+        uses: actions/gpg@v4
+        with:
+          gpg_private_key : ${{ secrets.GPG_PRIVATE_KEY }}
+          passphrase : ${{ secrets.GPG_PASSPHRASE }}
+
+      - name: Extract commit message
+        id: extract_commit_message
+        run: echo "::set-output name=message::$(git log --format=%B -n 1 $GITHUB_SHA)
+
+      - name: Get new version
+        id: get_version
+        run: ::set-output name=version::$(awk -F '=' '/^ *version/ {gsub(/[[:space:]]/, "", $2); print $2}' pyproject.toml)
+
+      - name: Get latest tag
+        id: get_latest_tag
+        run: |
+          git fetch --tags
+          LATEST_TAG=$(git describe --tags `git rev-list --tags --max-count=1`)
+          echo "::set-output name=latest_tag::$LATEST_TAG"
+
+      - name: Compare version and latest tag
+        id: compare
+        run: |
+          VERSION=${{ steps.get_version.outputs.version }}
+          LATEST_TAG=${{ steps.get_latest_tag.outputs.latest_tag }}
+          if [ "$VERSION" = "$LATEST_TAG" ]; then
+            echo "::set-output name=latest_tag::$LATEST_TAG"
+          fi
+          echo "::set-output name=version::$VERSION"
+
+      - name: Create tag
+        if: steps.compare.outputs.version
+        run: |
+          VERSION=${{ steps.get_version.outputs.version }}
+          git tag -s $VERSION -m "version bumped to $VERSION"
+          git push origin $VERSION
+
+      - name: Update latest tag
+        if: steps.compare.outputs.latest_tag
+        run: |
+          MESSAGE=${{ steps.extract_commit_message.outputs.message }}
+          LATEST_TAG=${{ steps.compare.outputs.latest_tag }}
+          git tag -fs $LATEST_TAG -m "$MESSAGE"
+          git push origin $LATEST_TAG --force