Allow multiple `log-level-overrides` on the same field

docs/releases.md

@@ -6,8 +6,9 @@ and the [ntfy Android app](https://github.com/binwiederhier/ntfy-android/release
 
 **Bug fixes + maintenance:**
 
-* Upgrade dialog: Disable submit button for free tier (no ticket)
 * Remove health check from `Dockerfile` and [document it](config.md#health-checks) ([#635](https://github.com/binwiederhier/ntfy/issues/635), thanks to [@Andersbiha](https://github.com/Andersbiha)) 
+* Upgrade dialog: Disable submit button for free tier (no ticket)
+* Allow multiple `log-level-overrides` on the same field (no ticket)
 
 ## ntfy server v2.1.0
 Released February 25, 2023

log/event.go

@@ -210,11 +210,13 @@ func (e *Event) globalLevelWithOverride() Level {
 	if e.fields == nil {
 		return l
 	}
-	for field, override := range ov {
+	for field, fieldOverrides := range ov {
 		value, exists := e.fields[field]
 		if exists {
-			if override.value == "" || override.value == value || override.value == fmt.Sprintf("%v", value) {
-				return override.level
+			for _, o := range fieldOverrides {
+				if o.value == "" || o.value == value || o.value == fmt.Sprintf("%v", value) {
+					return o.level
+				}
 			}
 		}
 	}

log/log.go

@@ -19,7 +19,7 @@ var (
 var (
 	level               = DefaultLevel
 	format              = DefaultFormat
-	overrides           = make(map[string]*levelOverride)
+	overrides           = make(map[string][]*levelOverride)
 	output    io.Writer = DefaultOutput
 	filename            = ""
 	mu                  = &sync.RWMutex{}
@@ -111,14 +111,17 @@ func SetLevel(newLevel Level) {
 func SetLevelOverride(field string, value string, level Level) {
 	mu.Lock()
 	defer mu.Unlock()
-	overrides[field] = &levelOverride{value: value, level: level}
+	if _, ok := overrides[field]; !ok {
+		overrides[field] = make([]*levelOverride, 0)
+	}
+	overrides[field] = append(overrides[field], &levelOverride{value: value, level: level})
 }
 
 // ResetLevelOverrides removes all log level overrides
 func ResetLevelOverrides() {
 	mu.Lock()
 	defer mu.Unlock()
-	overrides = make(map[string]*levelOverride)
+	overrides = make(map[string][]*levelOverride)
 }
 
 // CurrentFormat returns the current log format

log/log_test.go

@@ -177,6 +177,27 @@ func TestLog_LevelOverrideAny(t *testing.T) {
 	require.Equal(t, "", File())
 }
 
+func TestLog_LevelOverride_ManyOnSameField(t *testing.T) {
+	t.Cleanup(resetState)
+
+	var out bytes.Buffer
+	SetOutput(&out)
+	SetFormat(JSONFormat)
+	SetLevelOverride("tag", "manager", DebugLevel)
+	SetLevelOverride("tag", "publish", DebugLevel)
+
+	Time(time.Unix(11, 0).UTC()).Field("tag", "manager").Debug("this is logged")
+	Time(time.Unix(12, 0).UTC()).Field("tag", "no-match").Debug("this is not logged")
+	Time(time.Unix(13, 0).UTC()).Field("tag", "publish").Info("this is also logged")
+
+	expected := `{"time":"1970-01-01T00:00:11Z","level":"DEBUG","message":"this is logged","tag":"manager"}
+{"time":"1970-01-01T00:00:13Z","level":"INFO","message":"this is also logged","tag":"publish"}
+`
+	require.Equal(t, expected, out.String())
+	require.False(t, IsFile())
+	require.Equal(t, "", File())
+}
+
 func TestLog_UsingStdLogger_JSON(t *testing.T) {
 	t.Cleanup(resetState)