From c6fedb9e172d3a943e50598889a0c5d51d398332 Mon Sep 17 00:00:00 2001
From: Adrian Ulrich <adrian@blinkenlights.ch>
Date: Mon, 22 Oct 2018 21:03:24 +0200
Subject: [PATCH] do not index hidden files or folders.

---
 .../android/medialibrary/MediaScanner.java      | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/app/src/main/java/ch/blinkenlights/android/medialibrary/MediaScanner.java b/app/src/main/java/ch/blinkenlights/android/medialibrary/MediaScanner.java
index 0ba862ee..206bac3d 100644
--- a/app/src/main/java/ch/blinkenlights/android/medialibrary/MediaScanner.java
+++ b/app/src/main/java/ch/blinkenlights/android/medialibrary/MediaScanner.java
@@ -426,6 +426,9 @@ public class MediaScanner implements Handler.Callback {
 		if (new File(dir, ".nomedia").exists())
 			return;
 
+		if (isDotfile(dir))
+			return;
+
 		File[] dirents = dir.listFiles();
 		if (dirents == null)
 			return;
@@ -450,6 +453,9 @@ public class MediaScanner implements Handler.Callback {
 		if (isBlacklisted(file))
 			return false;
 
+		if (isDotfile(file))
+			return false;
+
 		long dbEntryMtime = mBackend.getColumnFromSongId(MediaLibrary.SongColumns.MTIME, songId) * 1000; // this is in unixtime -> convert to 'ms'
 		long songFlags = mBackend.getColumnFromSongId(MediaLibrary.SongColumns.FLAGS, songId);
 		long fileMtime = file.lastModified();
@@ -646,6 +652,17 @@ public class MediaScanner implements Handler.Callback {
 	}
 
 
+	private static final Pattern sDotfilePattern = Pattern.compile("^\\..*$", Pattern.CASE_INSENSITIVE);
+	/**
+	 * Returns true if the file is a hidden dotfile.
+	 *
+	 * @param file to inspect
+	 * @return boolean
+	 */
+	private boolean isDotfile(File file) {
+		return sDotfilePattern.matcher(file.getName()).matches();
+	}
+
 	// MediaScanPlan describes how we are going to perform the media scan
 	class MediaScanPlan {
 		class Step {