Feat: Github Actions CI release workflow

Author: sajattack

.github/workflows/release.yml

@@ -0,0 +1,55 @@
+name: release
+
+on:
+    push:
+        branches: [ $default-branch ]
+    workflow_dispatch:
+
+jobs:
+    build:
+        runs-on: ubuntu-latest
+        steps:
+            - name: Checkout repository
+              uses: actions/checkout@v2
+
+            - name: Checkout submodules
+              run: git submodule update --init --recursive
+
+            - name: Install FPGA toolchain
+              uses: YosysHQ/setup-oss-cad-suite@v1
+
+                #- name: Install RISC-V toolchain
+                #run: |
+                #wget https://github.com/xpack-dev-tools/riscv-none-embed-gcc-xpack/releases/download/v10.1.0-1.1/xpack-riscv-none-embed-gcc-10.1.0-1.1-linux-x64.tar.gz
+                #tar -xf xpack-riscv-none-embed-gcc-10.1.0-1.1-linux-x64.tar.gz
+                #rm xpack-riscv-none-embed-gcc-10.1.0-1.1-linux-x64.tar.gz
+                #echo "$(pwd)/xpack-riscv-none-embed-gcc-10.1.0-1.1/bin" >> $GITHUB_PATH
+            
+            - name: Set Env Vars
+              run: |
+                echo "SHORT_SHA=$(git rev-parse --short HEAD)" >> $GITHUB_ENV
+                echo "DATE=$(date +'%Y%m%d')" >> $GITHUB_ENV
+                echo ${{ env.SHORT_SHA }}
+                echo ${{ env.DATE }}
+
+            - name: Run gateware build
+              run: | 
+                make -j$(nproc)
+                mv "build/icesid.bin" "build/icesid-${{ env.DATE }}-${{ env.SHORT_SHA }}.bin"
+
+            - name: Build artifact upload
+              uses: actions/upload-artifact@v2
+              with:
+                name: icesid-build
+                path: build/icesid*.bin
+
+            - name: Release (as draft)
+              uses: softprops/action-gh-release@v1
+              with:
+                name: Release ${{ env.DATE }}-${{ env.SHORT_SHA }}
+                tag_name: ${{ env.DATE }}-${{ env.SHORT_SHA }}
+                draft: true
+                files: |
+                  build/icesid*.bin
+              env:
+                GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}