Initial working fully go release

pkg/pva/env.go

@@ -0,0 +1,21 @@
+package pva
+
+import (
+	"os"
+	"strings"
+)
+
+// addrsFromEnv returns addresses from EPICS_PVA_ADDR_LIST, if set.
+func addrsFromEnv() []string {
+	v := os.Getenv("EPICS_PVA_ADDR_LIST")
+	if v == "" {
+		return nil
+	}
+	var addrs []string
+	for _, a := range strings.Fields(v) {
+		if a != "" {
+			addrs = append(addrs, a)
+		}
+	}
+	return addrs
+}