The "OK" log level is silly and should not exist

cmd/syncthing/main.go

@@ -338,7 +338,7 @@ func main() {
 		if err != nil {
 			l.Fatalln("Upgrade:", err) // exits 1
 		}
-		l.Okln("Upgraded from", options.upgradeTo)
+		l.Infoln("Upgraded from", options.upgradeTo)
 		return
 	}
 
@@ -462,14 +462,14 @@ func performUpgrade(release upgrade.Release) {
 		if err != nil {
 			l.Fatalln("Upgrade:", err)
 		}
-		l.Okf("Upgraded to %q", release.Tag)
+		l.Infof("Upgraded to %q", release.Tag)
 	} else {
 		l.Infoln("Attempting upgrade through running Syncthing...")
 		err = upgradeViaRest()
 		if err != nil {
 			l.Fatalln("Upgrade:", err)
 		}
-		l.Okln("Syncthing upgrading")
+		l.Infoln("Syncthing upgrading")
 		os.Exit(exitUpgrading)
 	}
 }
@@ -850,7 +850,7 @@ func syncthingMain(runtimeOptions RuntimeOptions) {
 
 	mainService.Stop()
 
-	l.Okln("Exiting")
+	l.Infoln("Exiting")
 
 	if runtimeOptions.cpuProfile {
 		pprof.StopCPUProfile()

lib/logger/logger.go

@@ -23,7 +23,6 @@ const (
 	LevelDebug LogLevel = iota
 	LevelVerbose
 	LevelInfo
-	LevelOK
 	LevelWarn
 	LevelFatal
 	NumLevels
@@ -42,8 +41,6 @@ type Logger interface {
 	Verbosef(format string, vals ...interface{})
 	Infoln(vals ...interface{})
 	Infof(format string, vals ...interface{})
-	Okln(vals ...interface{})
-	Okf(format string, vals ...interface{})
 	Warnln(vals ...interface{})
 	Warnf(format string, vals ...interface{})
 	Fatalln(vals ...interface{})
@@ -165,24 +162,6 @@ func (l *logger) Infof(format string, vals ...interface{}) {
 	l.callHandlers(LevelInfo, s)
 }
 
-// Okln logs a line with an OK prefix.
-func (l *logger) Okln(vals ...interface{}) {
-	l.mut.Lock()
-	defer l.mut.Unlock()
-	s := fmt.Sprintln(vals...)
-	l.logger.Output(2, "OK: "+s)
-	l.callHandlers(LevelOK, s)
-}
-
-// Okf logs a formatted line with an OK prefix.
-func (l *logger) Okf(format string, vals ...interface{}) {
-	l.mut.Lock()
-	defer l.mut.Unlock()
-	s := fmt.Sprintf(format, vals...)
-	l.logger.Output(2, "OK: "+s)
-	l.callHandlers(LevelOK, s)
-}
-
 // Warnln logs a formatted line with a WARNING prefix.
 func (l *logger) Warnln(vals ...interface{}) {
 	l.mut.Lock()

lib/logger/logger_test.go

@@ -19,8 +19,6 @@ func TestAPI(t *testing.T) {
 	l.AddHandler(LevelDebug, checkFunc(t, LevelDebug, &debug))
 	info := 0
 	l.AddHandler(LevelInfo, checkFunc(t, LevelInfo, &info))
-	ok := 0
-	l.AddHandler(LevelOK, checkFunc(t, LevelOK, &ok))
 	warn := 0
 	l.AddHandler(LevelWarn, checkFunc(t, LevelWarn, &warn))
 
@@ -28,20 +26,15 @@ func TestAPI(t *testing.T) {
 	l.Debugln("test", 0)
 	l.Infof("test %d", 1)
 	l.Infoln("test", 1)
-	l.Okf("test %d", 2)
-	l.Okln("test", 2)
 	l.Warnf("test %d", 3)
 	l.Warnln("test", 3)
 
-	if debug != 8 {
+	if debug != 6 {
 		t.Errorf("Debug handler called %d != 8 times", debug)
 	}
-	if info != 6 {
+	if info != 4 {
 		t.Errorf("Info handler called %d != 6 times", info)
 	}
-	if ok != 4 {
-		t.Errorf("Ok handler called %d != 4 times", ok)
-	}
 	if warn != 2 {
 		t.Errorf("Warn handler called %d != 2 times", warn)
 	}

lib/model/model.go

@@ -189,7 +189,7 @@ func (m *Model) StartFolderRW(folder string) {
 	m.folderRunnerTokens[folder] = append(m.folderRunnerTokens[folder], token)
 	m.fmut.Unlock()
 
-	l.Okln("Ready to synchronize", folder, "(read-write)")
+	l.Infoln("Ready to synchronize", folder, "(read-write)")
 }
 
 func (m *Model) warnAboutOverwritingProtectedFiles(folder string) {
@@ -241,7 +241,7 @@ func (m *Model) StartFolderRO(folder string) {
 	m.folderRunnerTokens[folder] = append(m.folderRunnerTokens[folder], token)
 	m.fmut.Unlock()
 
-	l.Okln("Ready to synchronize", folder, "(read only; no external updates accepted)")
+	l.Infoln("Ready to synchronize", folder, "(read only; no external updates accepted)")
 }
 
 func (m *Model) RemoveFolder(folder string) {