Autocreate errors log file

errFS.go

@@ -9,6 +9,21 @@ import (
 var errFS *os.File = nil
 var errFSLock sync.Mutex
 
+func init() {
+	bn, e := os.Executable()
+	if e != nil {
+		panic("Can not get executable name")
+	}
+	ef, e := os.OpenFile(bn+".error", os.O_CREATE|os.O_APPEND|os.O_WRONLY, 0665)
+	if e != nil {
+		panic("Can not open or create error log file")
+	}
+	err := InitFS(ef)
+	if err != nil {
+		panic(err)
+	}
+}
+
 func InitFS(f *os.File) *Err {
 	errFS = f
 	errFSLock = sync.Mutex{}