Update the build workflow

.github/workflows/build-pdf.yml

@@ -1,13 +1,21 @@
-name: Build Specification
+name: Build Document PDF
 
 on:
   workflow_dispatch:
-  push:
-    branches:
-      - main
-  pull_request:
-    branches:
-      - main
+    inputs:
+      release_type:
+        description: 'Release type (draft or regular)'
+        required: true
+        type: string
+        default: 'regular'
+      version:
+        description: 'Release version, e.g. X.Y.Z:'
+        required: true
+        type: string
+      target_branch:
+        description: 'Target branch to run the workflow on'
+        required: true
+        default: 'main'
 
 jobs:
   build:
@@ -24,11 +32,14 @@ jobs:
     - name: Pull Container
       run: |
         docker pull riscvintl/riscv-docs-base-container-image:latest
+
     # Build PDF file using the container
     - name: Build Files
+      id: build_files
       run: |
         docker run --rm -v ${{ github.workspace }}:/build riscvintl/riscv-docs-base-container-image:latest \
         /bin/sh -c 'make'
+
     # Set the short SHA and repo name for use in artifact names
     - name: Set short SHA and repo name
       run: |
@@ -39,6 +50,22 @@ jobs:
     - name: Upload Build Artifact
       uses: actions/upload-artifact@v3
       with:
-        name: ${{ env.REPO_NAME }}-${{ env.SHORT_SHA }}.pdf
-        path: ${{ github.workspace }}/*.pdf
+        name: ${{ env.REPO_NAME }}-${{ env.SHORT_SHA }}
+        path: |
+          ${{ github.workspace }}/*.pdf
         retention-days: 7
+
+    - name: Create Release
+      if: steps.build_files.outcome == 'success' && github.event_name == 'workflow_dispatch' && github.event.inputs.release_type != ''
+      uses: softprops/action-gh-release@v1
+      with:
+        draft: ${{ github.event.inputs.release_type == 'draft' }}
+        tag_name: v${{ github.event.inputs.version }}
+        name: ${{ env.CURRENT_DATE }}
+        body: |
+          This release was created by: ${{ github.event.sender.login }}
+          Release Notes: ${{ github.event.inputs.release_notes }}
+        files: |
+          ${{ github.workspace }}/*.pdf
+      env:
+        GITHUB_TOKEN: ${{ secrets.GHTOKEN }}