Report panic details (stack trace w/args&stdin) to clients; drop synccycles.StringGen() (moved to go-boilerplate)

libmuttonserver.go

@@ -5,6 +5,7 @@ import (
 	"encoding/json"
 	"fmt"
 	"os"
+	"runtime/debug"
 	"strings"
 
 	"github.com/rwinkhart/go-boilerplate/back"
@@ -33,6 +34,14 @@ func main() {
 		}
 	}
 
+	// allow reporting panic details to clients
+	defer func() {
+		if r := recover(); r != nil {
+			fmt.Printf("{\"errMsg\":\"SERVER-SIDE PANIC OCCURRED!%sARGS: (%v)%sSTDIN: (%v)%sSTACK TRACE: %s\"}", global.FSSpace, os.Args, global.FSSpace, stdin, global.FSSpace, strings.ReplaceAll(strings.ReplaceAll(string(debug.Stack()), "\n", global.FSSpace), "\t", ""))
+			return
+		}
+	}()
+
 	switch args[1] {
 	case "fetch":
 		// print all information needed for syncing to stdout for interpretation by the client