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authorMax Kellermann <max@duempel.org>2012-06-13 21:28:26 +0200
committerMax Kellermann <max@duempel.org>2012-06-13 21:52:46 +0200
commitc9e63e9fdbd9275243f8a71783a6eb792ba3ef6b (patch)
treec858b206a846978a857086096df63e0373182308 /src/update_archive.c
parentddf7f5c131b04f2caee28c9456b98eeebe0c94ab (diff)
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update_walk: move code to update_archive.c
Diffstat (limited to 'src/update_archive.c')
-rw-r--r--src/update_archive.c157
1 files changed, 157 insertions, 0 deletions
diff --git a/src/update_archive.c b/src/update_archive.c
new file mode 100644
index 000000000..e7cdcbdfd
--- /dev/null
+++ b/src/update_archive.c
@@ -0,0 +1,157 @@
+/*
+ * 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_archive.h"
+#include "update_internal.h"
+#include "db_lock.h"
+#include "directory.h"
+#include "song.h"
+#include "mapper.h"
+#include "glib_compat.h"
+#include "archive_list.h"
+#include "archive_plugin.h"
+
+#include <glib.h>
+
+#include <string.h>
+
+static void
+update_archive_tree(struct directory *directory, char *name)
+{
+ char *tmp = strchr(name, '/');
+ if (tmp) {
+ *tmp = 0;
+ //add dir is not there already
+ db_lock();
+ struct directory *subdir =
+ directory_make_child(directory, name);
+ subdir->device = DEVICE_INARCHIVE;
+ db_unlock();
+ //create directories first
+ update_archive_tree(subdir, tmp+1);
+ } else {
+ if (strlen(name) == 0) {
+ g_warning("archive returned directory only");
+ return;
+ }
+
+ //add file
+ db_lock();
+ struct song *song = directory_get_song(directory, name);
+ db_unlock();
+ if (song == NULL) {
+ song = song_file_load(name, directory);
+ if (song != NULL) {
+ db_lock();
+ directory_add_song(directory, song);
+ db_unlock();
+
+ modified = true;
+ g_message("added %s/%s",
+ directory_get_path(directory), name);
+ }
+ }
+ }
+}
+
+/**
+ * Updates the file listing from an archive file.
+ *
+ * @param parent the parent directory the archive file resides in
+ * @param name the UTF-8 encoded base name of the archive file
+ * @param st stat() information on the archive file
+ * @param plugin the archive plugin which fits this archive type
+ */
+static void
+update_archive_file2(struct directory *parent, const char *name,
+ const struct stat *st,
+ const struct archive_plugin *plugin)
+{
+ db_lock();
+ struct directory *directory = directory_get_child(parent, name);
+ db_unlock();
+
+ if (directory != NULL && directory->mtime == st->st_mtime &&
+ !walk_discard)
+ /* MPD has already scanned the archive, and it hasn't
+ changed since - don't consider updating it */
+ return;
+
+ char *path_fs = map_directory_child_fs(parent, name);
+
+ /* open archive */
+ GError *error = NULL;
+ struct archive_file *file = archive_file_open(plugin, path_fs, &error);
+ if (file == NULL) {
+ g_free(path_fs);
+ g_warning("%s", error->message);
+ g_error_free(error);
+ return;
+ }
+
+ g_debug("archive %s opened", path_fs);
+ g_free(path_fs);
+
+ if (directory == NULL) {
+ g_debug("creating archive directory: %s", name);
+ db_lock();
+ directory = directory_new_child(parent, name);
+ /* mark this directory as archive (we use device for
+ this) */
+ directory->device = DEVICE_INARCHIVE;
+ db_unlock();
+ }
+
+ directory->mtime = st->st_mtime;
+
+ archive_file_scan_reset(file);
+
+ char *filepath;
+ while ((filepath = archive_file_scan_next(file)) != NULL) {
+ /* split name into directory and file */
+ g_debug("adding archive file: %s", filepath);
+ update_archive_tree(directory, filepath);
+ }
+
+ archive_file_close(file);
+}
+
+bool
+update_archive_file(struct directory *directory,
+ const char *name, const char *suffix,
+ const struct stat *st)
+{
+#ifdef ENABLE_ARCHIVE
+ const struct archive_plugin *plugin =
+ archive_plugin_from_suffix(suffix);
+ if (plugin == NULL)
+ return false;
+
+ update_archive_file2(directory, name, st, plugin);
+ return true;
+#else
+ (void)directory;
+ (void)name;
+ (void)suffix;
+ (void)st;
+
+ return false;
+#endif
+}