[library/spotify] Implement rescan in spotify.c and purge old files

after rescan

src/db.c

@@ -3528,12 +3528,12 @@ db_directory_addorupdate(char *virtual_path, int disabled, int parent_id)
 }
 
 void
-db_directory_ping_bymatch(char *path)
+db_directory_ping_bymatch(char *virtual_path)
 {
-#define Q_TMPL_DIR "UPDATE directories SET db_timestamp = %" PRIi64 " WHERE virtual_path = '/file:%q' OR virtual_path LIKE '/file:%q/%%';"
+#define Q_TMPL_DIR "UPDATE directories SET db_timestamp = %" PRIi64 " WHERE virtual_path = '%q' OR virtual_path LIKE '%q/%%';"
   char *query;
 
-  query = sqlite3_mprintf(Q_TMPL_DIR, (int64_t)time(NULL), path, path);
+  query = sqlite3_mprintf(Q_TMPL_DIR, (int64_t)time(NULL), virtual_path, virtual_path);
 
   db_query_run(query, 1, 0);
 #undef Q_TMPL_DIR

src/db.h

@@ -633,7 +633,7 @@ int
 db_directory_addorupdate(char *virtual_path, int disabled, int parent_id);
 
 void
-db_directory_ping_bymatch(char *path);
+db_directory_ping_bymatch(char *virtual_path);
 
 void
 db_directory_disable_bymatch(char *path, char *strip, uint32_t cookie);

src/filescanner.c

@@ -766,6 +766,8 @@ bulk_scan(int flags)
   time_t end;
   int parent_id;
   int i;
+  char virtual_path[PATH_MAX];
+  int ret;
 
   start = time(NULL);
 
@@ -793,7 +795,11 @@ bulk_scan(int flags)
 
 	  db_file_ping_bymatch(path, 1);
 	  db_pl_ping_bymatch(path, 1);
-	  db_directory_ping_bymatch(path);
+	  ret = snprintf(virtual_path, sizeof(virtual_path), "/file:%s", path);
+	  if ((ret < 0) || (ret >= sizeof(virtual_path)))
+	    DPRINTF(E_LOG, L_SCAN, "Virtual path exceeds PATH_MAX (/file:%s)\n", path);
+	  else
+	    db_directory_ping_bymatch(virtual_path);
 
 	  continue;
 	}

src/library.c

@@ -572,6 +572,8 @@ rescan(void *arg, int *ret)
 	sources[i]->rescan();
     }
 
+  purge_cruft(starttime);
+
   endtime = time(NULL);
   DPRINTF(E_LOG, L_LIB, "Library rescan completed in %.f sec\n", difftime(endtime, starttime));
 
@@ -646,10 +648,13 @@ initscan()
 	sources[i]->initscan();
     }
 
-  purge_cruft(starttime);
+  if (! (cfg_getbool(cfg_getsec(cfg, "library"), "filescan_disable")))
+    {
+      purge_cruft(starttime);
 
-  DPRINTF(E_DBG, L_LIB, "Running post library scan jobs\n");
+      DPRINTF(E_DBG, L_LIB, "Running post library scan jobs\n");
-  db_hook_post_scan();
+      db_hook_post_scan();
+    }
 
   endtime = time(NULL);
   DPRINTF(E_LOG, L_LIB, "Library init scan completed in %.f sec\n", difftime(endtime, starttime));

src/spotify.c

@@ -2233,7 +2233,7 @@ scan_playlists()
 
 /* Thread: library */
 static int
-spotify_initscan()
+initscan()
 {
   cfg_t *spotify_cfg;
   int ret;
@@ -2283,14 +2283,31 @@ spotify_initscan()
 
 /* Thread: library */
 static int
-spotify_rescan()
+rescan()
 {
+  /*
+   * Scan saved tracks from the web api
+   */
+  if (spotify_access_token_valid)
+    {
+      scan_saved_albums();
+      scan_playlists();
+    }
+  else
+    {
+      db_transaction_begin();
+      db_file_ping_bymatch("spotify:", 0);
+      db_pl_ping_bymatch("spotify:", 0);
+      db_directory_ping_bymatch("/spotify:");
+      db_transaction_end();
+    }
+
   return 0;
 }
 
 /* Thread: library */
 static int
-spotify_fullrescan()
+fullrescan()
 {
   return 0;
 }
@@ -2498,7 +2515,7 @@ struct library_source spotifyscanner =
   .disabled = 0,
   .init = spotify_init,
   .deinit = spotify_deinit,
-  .rescan = spotify_rescan,
+  .rescan = rescan,
-  .initscan = spotify_initscan,
+  .initscan = initscan,
-  .fullrescan = spotify_fullrescan,
+  .fullrescan = fullrescan,
 };