From 0afc1d761b23315e6172e7c9c5f88d7158840777 Mon Sep 17 00:00:00 2001
From: Michael Chus <mike@mchus.pro>
Date: Thu, 23 Apr 2026 22:58:07 +0300
Subject: [PATCH] Fix empty disk mount detection

---
 internal/disk/disk.go       |  3 +--
 internal/watcher/watcher.go | 15 ++++++++++++---
 2 files changed, 13 insertions(+), 5 deletions(-)

diff --git a/internal/disk/disk.go b/internal/disk/disk.go
index f22ccdc..6ca17d8 100644
--- a/internal/disk/disk.go
+++ b/internal/disk/disk.go
@@ -32,8 +32,7 @@ const idFile = "disk.id"
 func Probe(mountPath string) (DiskInfo, error) {
 	info := DiskInfo{MountPath: mountPath, State: DiskAbsent}
 
-	entries, err := os.ReadDir(mountPath)
-	if err != nil || len(entries) == 0 {
+	if _, err := os.ReadDir(mountPath); err != nil {
 		return info, nil
 	}
 
diff --git a/internal/watcher/watcher.go b/internal/watcher/watcher.go
index 1344923..d690164 100644
--- a/internal/watcher/watcher.go
+++ b/internal/watcher/watcher.go
@@ -5,6 +5,7 @@ import (
 	"os"
 	"path/filepath"
 	"sort"
+	"strings"
 	"sync"
 	"time"
 
@@ -122,14 +123,15 @@ func (w *Watcher) probe() {
 }
 
 func discoverDisks(root string) map[string]disk.DiskInfo {
+	disks := make(map[string]disk.DiskInfo)
+
 	entries, err := os.ReadDir(root)
 	if err != nil {
-		return map[string]disk.DiskInfo{}
+		return disks
 	}
 
-	disks := make(map[string]disk.DiskInfo)
 	for _, entry := range entries {
-		if !entry.IsDir() {
+		if !entry.IsDir() || strings.HasPrefix(entry.Name(), ".") {
 			continue
 		}
 		mountPath := filepath.Join(root, entry.Name())
@@ -139,5 +141,12 @@ func discoverDisks(root string) map[string]disk.DiskInfo {
 		}
 		disks[mountPath] = info
 	}
+
+	// If no child mountpoints were detected, the disk may be mounted directly at root.
+	if len(disks) == 0 {
+		if info, _ := disk.Probe(root); info.State != disk.DiskAbsent {
+			disks[root] = info
+		}
+	}
 	return disks
 }