its been a while

agent/internal/logs/state.go

@@ -0,0 +1,35 @@
+package logs
+
+import (
+	"encoding/json"
+	"os"
+)
+
+func ReadState(path string) (map[string]SourceState, error) {
+	data, err := os.ReadFile(path)
+	if err != nil {
+		if os.IsNotExist(err) {
+			return map[string]SourceState{}, nil
+		}
+		return nil, err
+	}
+	out := map[string]SourceState{}
+	if len(data) == 0 {
+		return out, nil
+	}
+	if err := json.Unmarshal(data, &out); err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func WriteState(path string, state map[string]SourceState) error {
+	if state == nil {
+		state = map[string]SourceState{}
+	}
+	data, err := json.Marshal(state)
+	if err != nil {
+		return err
+	}
+	return os.WriteFile(path, data, 0o600)
+}