update automation scripts

.github/workflows/Build.yml

@@ -0,0 +1,46 @@
+name: Build
+
+on:
+  push:
+  
+jobs:
+
+  build:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+
+    - name: Set up Go
+      uses: actions/setup-go@v2
+      with:
+        go-version: 1.17
+
+    - name: Build
+      run: |
+        #see https://en.wikipedia.org/wiki/Raspberry_Pi#Specifications for RPi arm versions
+        #see https://github.com/golang/go/wiki/GoArm
+        platforms=("windows/amd64" "windows/386" "darwin/amd64" "linux/386" "linux/amd64" "linux/arm/6" "linux/arm/7" "linux/arm64/8" "freebsd/386" "freebsd/amd64")
+        mkdir -p releases
+        for platform in "${platforms[@]}"
+        do
+            platform_split=(${platform//\// })
+            GOOS=${platform_split[0]}
+            GOARCH=${platform_split[1]}
+            GOARM=${platform_split[2]}
+            output_name='digitalocean-dynamic-dns-ip-'$GOOS'-'$GOARCH
+            if [[ ! -z "$GOARM" ]]; then
+                output_name+="v${GOARM}"
+                # arm v8 is only supported for ARCH=arm64 and requires an empty GOARM version
+                if [[ "8" -eq "$GOARM" ]]; then
+                    GOARM=""
+                fi
+            fi
+            if [ $GOOS = "windows" ]; then
+                output_name+='.exe'
+            fi
+            env GOOS="$GOOS" GOARCH="$GOARCH" GOARM="$GOARM" go build -o "releases/$output_name"
+            if [ $? -ne 0 ]; then
+                echo 'An error has occurred! Aborting the script execution...'
+                exit 1
+            fi
+        done    

.github/workflows/PublishRelease.yml

@@ -1,4 +1,4 @@
-name: Go
+name: Publish Release
 
 on:
   push:
@@ -46,8 +46,9 @@ jobs:
             fi
         done
     - uses: ncipollo/release-action@v1
-      name: "Create Release"
+      name: "Publish Release "
       with:
+        allowUpdates: true
         artifacts: "releases/*"
         token: ${{ secrets.GITHUB_TOKEN }}