structure appears to work

.drone.sh

@@ -0,0 +1,35 @@
+#!/bin/sh
+
+# disable CGO for cross-compiling
+export CGO_ENABLED=0
+
+commit=$(git rev-parse HEAD)
+#tag=$(git describe --tags --abbrev=0)
+buildtime=$(TZ=Australia/Sydney date +%Y-%m-%dT%T%z)
+git_version=$(git describe --tags --always --long --dirty)
+package_name=vctp
+
+platforms=("linux/amd64" "darwin/amd64")
+
+echo Building $package_name with git version: $git_version
+for platform in "${platforms[@]}"
+do
+   platform_split=(${platform//\// })
+   GOOS=${platform_split[0]}
+   GOARCH=${platform_split[1]}
+   output_name=$package_name'-'$GOOS'-'$GOARCH
+   if [ $GOOS = "windows" ]; then
+       output_name+='.exe'
+   fi
+
+   echo "build commences"
+   env GOOS=$GOOS GOARCH=$GOARCH go build -trimpath -ldflags="-X main.sha1ver=$commit -X main.buildTime=$buildtime" -o build/$output_name $package
+   if [ $? -ne 0 ]; then
+       echo 'An error has occurred! Aborting the script execution...'
+       exit 1
+   fi
+   echo "build complete at $buildtime : $output_name"
+   sha256sum build/$output_name > build/${output_name}_checksum.txt
+done
+
+ls -lah build