Add release workflow

.github/workflows/release.yaml

@@ -0,0 +1,94 @@
+name: Release
+
+on:
+  push:
+    tags: ["v*"]
+  workflow_dispatch:
+    inputs:
+      tag:
+        description: "Specify a version tag (v#.#.#)"
+        required: true
+
+permissions:
+  contents: write # needed to create releases
+
+jobs:
+  create-release:
+    name: Create release
+    runs-on: ubuntu-latest
+    outputs:
+      upload_url: ${{ steps.create_release.outputs.upload_url }}
+    steps:
+      - name: Create release
+        id: create_release
+        uses: actions/create-release@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          tag_name: ${{ github.ref }}
+          release_name: ${{ github.ref }}
+          draft: true
+          prerelease: false
+
+  build:
+    needs: ["create-release"]
+    name: Build
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          submodules: true
+
+      - name: Install clang
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y clang
+
+      - name: Build
+        run: make amalgamate
+
+      - name: Create Release Archive
+        shell: bash
+        run: |
+          mkdir staging
+          cp amalgamate/* staging/
+          cd staging
+          zip ../release.zip *
+
+      - name: Prepare Asset Name
+        shell: bash
+        run: |
+          TAG_NAME=$(
+            if [ "${{ github.event_name }}" == 'workflow_dispatch' ]; then
+              echo "${{ github.event.inputs.tag }}";
+            else
+              echo "${{ github.ref }}";
+            fi
+          )
+          echo "ASSET_NAME=caught-$TAG_NAME" >> $GITHUB_ENV
+
+      - name: Upload .h to Release
+        uses: actions/upload-release-asset@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          upload_url: ${{ needs.create-release.outputs.upload_url }}
+          asset_path: amalgamate/caught.h
+          asset_name: caught.h
+
+      - name: Upload .c to Release
+        uses: actions/upload-release-asset@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          upload_url: ${{ needs.create-release.outputs.upload_url }}
+          asset_path: amalgamate/caught.c
+          asset_name: caught.c
+          asset_content_type: application/octet-stream
+
+      - name: Upload Archive as Artifact
+        uses: actions/upload-artifact@v3
+        with:
+          name: ${{ env.ASSET_NAME }}.zip
+          path: release.zip