From 766177bf10a7a603d3cf019043ca549d01014b25 Mon Sep 17 00:00:00 2001
From: ejurgensen <espenjurgensen@gmail.com>
Date: Sat, 26 Oct 2013 20:59:05 +0200
Subject: [PATCH] File types to ignore during scan made configurable

---
 forked-daapd.conf |  6 ++++++
 src/conffile.c    |  1 +
 src/filescanner.c | 28 +++++++++++++++++++++++-----
 3 files changed, 30 insertions(+), 5 deletions(-)

diff --git a/forked-daapd.conf b/forked-daapd.conf
index 692f98d1..7b2962bf 100644
--- a/forked-daapd.conf
+++ b/forked-daapd.conf
@@ -33,6 +33,12 @@ library {
 	# forked-daapd will look for jpg and png files with these base names
 #	artwork_basenames = { "artwork", "cover", "Folder" }
 
+	# File types the scanner should ignore
+	# Non-audio files will never be added to the database, but here you
+	# can prevent the scanner from even probing them. This might improve
+	# scan time. By default .db and .ini are ignored.
+#	filetypes_ignore = { ".db", ".ini" }
+
 	# Should iTunes metadata override ours?
 #	itunes_overrides = true
 
diff --git a/src/conffile.c b/src/conffile.c
index 3a0dda94..d38fe8d0 100644
--- a/src/conffile.c
+++ b/src/conffile.c
@@ -62,6 +62,7 @@ static cfg_opt_t sec_library[] =
     CFG_STR_LIST("directories", NULL, CFGF_NONE),
     CFG_STR_LIST("compilations", NULL, CFGF_NONE),
     CFG_STR_LIST("artwork_basenames", "{artwork,cover,Folder}", CFGF_NONE),
+    CFG_STR_LIST("filetypes_ignore", "{.db,.ini}", CFGF_NONE),
     CFG_BOOL("itunes_overrides", cfg_false, CFGF_NONE),
     CFG_STR_LIST("no_transcode", NULL, CFGF_NONE),
     CFG_STR_LIST("force_transcode", NULL, CFGF_NONE),
diff --git a/src/filescanner.c b/src/filescanner.c
index 76ede928..946faa1b 100644
--- a/src/filescanner.c
+++ b/src/filescanner.c
@@ -134,6 +134,24 @@ pop_dir(struct stacked_dir **s)
   return ret;
 }
 
+static int
+ignore_filetype(char *ext)
+{
+  cfg_t *lib;
+  int n;
+  int i;
+
+  lib = cfg_getsec(cfg, "library");
+  n = cfg_size(lib, "filetypes_ignore");
+
+  for (i = 0; i < n; i++)
+    {
+      if (strcmp(ext, cfg_getnstr(lib, "filetypes_ignore", i)) == 0)
+	return 1;
+    }
+
+  return 0;
+}
 
 static void
 normalize_fixup_tag(char **tag, char *src_tag)
@@ -328,16 +346,16 @@ process_media_file(char *file, time_t mtime, off_t size, int compilation, int ur
 	  /* Artwork files - don't scan */
 	  return;
 	}
-      else if ((strcmp(ext, ".db") == 0) || (strcmp(ext, ".ini") == 0))
-	{
-	  /* System files - don't scan */
-	  return;
-	}
       else if ((strlen(filename) > 1) && ((filename[1] == '_') || (filename[1] == '.')))
 	{
 	  /* Hidden files - don't scan */
 	  return;
 	}
+      else if (ignore_filetype(ext))
+	{
+	  /* File extension is in ignore list - don't scan */
+	  return;
+	}
     }
 
   db_file_stamp_bypath(file, &stamp, &id);