update_walk: move code to update_song.c

1 files changed, 114 insertions, 0 deletions

diff --git a/src/update_song.c b/src/update_song.c
new file mode 100644
index 00000000..5f06985a
--- /dev/null
+++ b/src/update_song.c
@@ -0,0 +1,114 @@
+/*
+ * Copyright (C) 2003-2012 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "config.h" /* must be first for large file support */
+#include "update_song.h"
+#include "update_internal.h"
+#include "update_io.h"
+#include "update_db.h"
+#include "update_container.h"
+#include "db_lock.h"
+#include "directory.h"
+#include "song.h"
+#include "glib_compat.h"
+#include "decoder_list.h"
+#include "decoder_plugin.h"
+
+#include <glib.h>
+
+#include <unistd.h>
+
+static void
+update_song_file2(struct directory *directory,
+		  const char *name, const struct stat *st,
+		  const struct decoder_plugin *plugin)
+{
+	db_lock();
+	struct song *song = directory_get_song(directory, name);
+	db_unlock();
+
+	if (!directory_child_access(directory, name, R_OK)) {
+		g_warning("no read permissions on %s/%s",
+			  directory_get_path(directory), name);
+		if (song != NULL) {
+			db_lock();
+			delete_song(directory, song);
+			db_unlock();
+		}
+
+		return;
+	}
+
+	if (!(song != NULL && st->st_mtime == song->mtime &&
+	      !walk_discard) &&
+	    update_container_file(directory, name, st, plugin)) {
+		if (song != NULL) {
+			db_lock();
+			delete_song(directory, song);
+			db_unlock();
+		}
+
+		return;
+	}
+
+	if (song == NULL) {
+		g_debug("reading %s/%s",
+			directory_get_path(directory), name);
+		song = song_file_load(name, directory);
+		if (song == NULL) {
+			g_debug("ignoring unrecognized file %s/%s",
+				directory_get_path(directory), name);
+			return;
+		}
+
+		db_lock();
+		directory_add_song(directory, song);
+		db_unlock();
+
+		modified = true;
+		g_message("added %s/%s",
+			  directory_get_path(directory), name);
+	} else if (st->st_mtime != song->mtime || walk_discard) {
+		g_message("updating %s/%s",
+			  directory_get_path(directory), name);
+		if (!song_file_update(song)) {
+			g_debug("deleting unrecognized file %s/%s",
+				directory_get_path(directory), name);
+			db_lock();
+			delete_song(directory, song);
+			db_unlock();
+		}
+
+		modified = true;
+	}
+}
+
+bool
+update_song_file(struct directory *directory,
+		 const char *name, const char *suffix,
+		 const struct stat *st)
+{
+	const struct decoder_plugin *plugin =
+		decoder_plugin_from_suffix(suffix, false);
+	if (plugin == NULL)
+		return false;
+
+	update_song_file2(directory, name, st, plugin);
+	return true;
+}