add build script with versioning

build.sh

@@ -1,10 +1,16 @@
 #!/usr/bin/env sh
 
-# shellcheck disable=SC2155
-export GIT_COMMIT=$(git rev-list -1 HEAD)
+GOPATH=$GOPATH:$(pwd)
+export GOPATH
+
+GIT_COMMIT=$(git rev-list -1 HEAD)
+export GIT_COMMIT
 CANONICAL_VERSION=$(cat ./VERSION)
-VERSION_STRING="$CANONICAL_VERSION ($GIT_COMMIT)"
+export CANONICAL_VERSION
+VERSION_STRING="$CANONICAL_VERSION-$GIT_COMMIT"
+export VERSION_STRING
 
 go mod vendor
 go mod tidy
+
 go build -o build/gostations -ldflags "-X main.version=$VERSION_STRING"

stations.go

@@ -6,7 +6,7 @@ import (
 	"os"
 )
 
-var version float32
+var version string
 
 func showVersion(){
 	fmt.Println(version)