Initial 2024-01-26

cmpSnipper/cmpSnipperLog.go

@@ -0,0 +1,57 @@
+
+	package cmpSnipper
+
+	import (
+		"fmt"
+		"log"
+		"time"
+		"encoding/json"
+	)
+
+	func (app *App) LogMod(arg interface{}) string {
+		var str string
+
+		switch t := arg.(type) {
+			case nil:
+				str = /* "N:" + */ "null"
+
+			case string:
+				str = /* "S:" + */ t
+
+			case error:
+				str = /* "E:" + */ t.Error()
+
+			case byte:
+				str = /* "B:" + */ string(t)
+
+			case []byte:
+				str = /* "A:" + */ string(t)
+
+			case interface{}:
+				obyte, _ := json.MarshalIndent(arg, "", "\t")
+				str = /* "J:" + */ string(obyte)
+
+			default:
+				str = /* "U:" + */ fmt.Sprintf("Unknown type %T", t)
+		}
+
+		return str
+	}
+
+	func (app *App) Log(farg any, iargs ...interface{}) {
+		var str = app.LogMod(farg)
+
+		log.SetPrefix(time.Now().UTC().Format("2006-01-02 15:04:05") + ": ")
+
+		oargs :=  make([]interface{}, len(iargs))
+
+		for k, arg := range iargs {
+			oargs[k] = app.LogMod(arg)
+		}
+
+		log.Output(2, fmt.Sprintf(str + "\n", oargs...))
+	}
+
+	func (app *App) LogSetup() {
+		log.SetFlags( log.Lshortfile );
+	}