Publish on tag or [Release] commit

.github/workflows/build_docs.yml

@@ -7,7 +7,7 @@ on:
       publish:
         description: Whether to publish the docgen to PyPI.
         type: boolean
-        default: false
+        required: true
       segment:
         description: The version segment to bump with Hatch.
         type: string
@@ -36,19 +36,18 @@ jobs:
 
       - name: Install docgen
         run: pip install . hatch
-
-      - name: Bump version
-        if: inputs.segment
-        run: hatch version ${{ inputs.segment }}
-        
-      - name: Commit updated version
-        if: inputs.segment
-        uses: stefanzweifel/git-auto-commit-action@v4
-        with:
-          commit_message: Bump version from ${{ github.ref }}
-
+      
       - name: Generate web book
         run: hexdoc doc/properties.toml --ci -o out
+
+      - name: Bump version
+        if: github.event_name == 'workflow_dispatch' && inputs.segment
+        run: hatch version ${{ inputs.segment }}
+        
+      - name: Commit changes
+        uses: stefanzweifel/git-auto-commit-action@v4
+        with:
+          commit_message: Build web book from ${{ github.ref }}
       
       - name: Build docgen
         run: hatch build
@@ -96,7 +95,10 @@ jobs:
   publish:
     runs-on: ubuntu-latest
     needs: build
-    if: inputs.publish == true
+    if: |-
+      inputs.publish == true ||
+      startsWith(github.ref, 'refs/tags') ||
+      startsWith(github.event.head_commit.message, '[Release]')
 
     environment:
       name: testpypi