/**
* media_art_remove:
* @artist: artist the media art belongs to
* @album: (allow-none): album the media art belongs or %NULL
* @cancellable: (allow-none): optional #GCancellable object, %NULL to ignore.
* @error: location to store the error occurring, or %NULL to ignore
*
* Removes media art for given album/artist provided.
*
* If @artist and @album are %NULL, ALL media art cache is removed.
*
* Returns: #TRUE on success, otherwise #FALSE where @error will be set.
*
* Since: 0.2.0
*/
gboolean
media_art_remove (const gchar *artist,
const gchar *album,
GCancellable *cancellable,
GError **error)
{
GError *local_error = NULL;
const gchar *name;
GDir *dir;
gchar *dirname;
gboolean success = TRUE;
g_return_val_if_fail (artist != NULL && artist[0] != '\0', FALSE);
dirname = g_build_filename (g_get_user_cache_dir (), "media-art", NULL);
dir = g_dir_open (dirname, 0, &local_error);
if (!dir || local_error) {
/* Nothing to do if there is no directory in the first place. */
g_debug ("Removing media-art for artist:'%s', album:'%s': directory could not be opened, %s",
artist, album, local_error ? local_error->message : "no error given");
g_clear_error (&local_error);
if (dir) {
g_dir_close (dir);
}
g_free (dirname);
/* We wanted to remove media art, so if there is no
* media art, the caller has achieved what they wanted.
*/
return TRUE;
}
/* NOTE: We expect to not find some of these paths for
* artist/album conbinations, so don't error in those
* cases...
*/
if (artist || album) {
gchar *target = NULL;
gint removed = 0;
/* The get_path API does stripping itself */
media_art_get_path (artist, album, "album", &target);
if (target) {
if (g_unlink (target) != 0) {
g_debug ("Could not delete file '%s'", target);
} else {
g_message ("Removed media-art for artist:'%s', album:'%s': deleting file '%s'",
artist, album, target);
removed++;
}
g_free (target);
}
/* Add the album path also (to which the symlinks are made) */
if (album) {
media_art_get_path (NULL, album, "album", &target);
if (target) {
if (g_unlink (target) != 0) {
g_debug ("Could not delete file '%s'", target);
} else {
g_message ("Removed media-art for album:'%s': deleting file '%s'",
album, target);
removed++;
}
g_free (target);
}
}
success = removed > 0;
} else {
for (name = g_dir_read_name (dir);
name != NULL;
name = g_dir_read_name (dir)) {
gchar *target;
target = g_build_filename (dirname, name, NULL);
if (g_unlink (target) != 0) {
g_warning ("Could not delete file '%s'", target);
success = FALSE;
} else {
g_message ("Removing all media-art: deleted file '%s'", target);
}
g_free (target);
}
}
if (!success) {
g_set_error_literal (error,
G_IO_ERROR,
G_IO_ERROR_FAILED,
_("Could not remove one or more files from media art cache"));
}
g_dir_close (dir);
g_free (dirname);
return success;
}
static void
on_query_finished (GObject *source_object,
GAsyncResult *res,
gpointer user_data)
{
GError *error = NULL;
TrackerSparqlCursor *cursor = NULL;
GDir *dir = NULL;
GHashTable *table = NULL;
const gchar *name;
gchar *dirname = NULL;
GList *to_remove = NULL;
cursor = tracker_sparql_connection_query_finish (TRACKER_SPARQL_CONNECTION (source_object),
res,
&error);
if (error) {
goto on_error;
}
dirname = g_build_filename (g_get_user_cache_dir (),
"media-art",
NULL);
if (!g_file_test (dirname, G_FILE_TEST_EXISTS)) {
/* Ignore this and just quit the function */
goto on_error;
}
dir = g_dir_open (dirname, 0, &error);
if (error) {
goto on_error;
}
table = g_hash_table_new_full (g_str_hash,
g_str_equal,
(GDestroyNotify) g_free,
(GDestroyNotify) NULL);
while (tracker_sparql_cursor_next (cursor, NULL, NULL)) {
gchar *target = NULL, *album_path = NULL;
const gchar *album, *artist;
album = tracker_sparql_cursor_get_string (cursor, 0, NULL);
artist = tracker_sparql_cursor_get_value_type (cursor, 1) != TRACKER_SPARQL_VALUE_TYPE_UNBOUND ? tracker_sparql_cursor_get_string (cursor, 1, NULL) : NULL;
/* The get_path API does stripping itself */
media_art_get_path (artist,
album,
"album", NULL,
&target, NULL);
g_hash_table_replace (table, target, target);
/* Also add the file to which the symlinks are made */
media_art_get_path (NULL,
album,
"album", NULL,
&album_path, NULL);
g_hash_table_replace (table, album_path, album_path);
}
/* Perhaps we should have an internal list of media art files that we made,
* instead of going over all the media art (which could also have been made
* by other softwares) */
for (name = g_dir_read_name (dir); name != NULL; name = g_dir_read_name (dir)) {
gpointer value;
gchar *full;
full = g_build_filename (dirname, name, NULL);
value = g_hash_table_lookup (table, full);
if (!value) {
g_message ("Removing media-art file %s: no album exists that has "
"any songs for this media-art cache", name);
to_remove = g_list_prepend (to_remove, (gpointer) full);
} else {
g_free (full);
}
}
g_list_foreach (to_remove, (GFunc) g_unlink, NULL);
g_list_foreach (to_remove, (GFunc) g_free, NULL);
g_list_free (to_remove);
on_error:
g_free (dirname);
if (table) {
g_hash_table_unref (table);
}
if (cursor) {
g_object_unref (cursor);
}
if (dir) {
g_dir_close (dir);
}
if (error) {
g_critical ("Error running cleanup of media-art: %s",
error->message ? error->message : "No error given");
g_error_free (error);
}
}
/**
* media_art_remove:
* @artist: artist the media art belongs to
* @album: (allow-none): album the media art belongs or %NULL
*
* Removes media art for given album/artist/etc provided.
*
* Returns: #TRUE on success, otherwise #FALSE.
*
* Since: 0.2.0
*/
gboolean
media_art_remove (const gchar *artist,
const gchar *album)
{
GError *error = NULL;
GHashTable *table = NULL;
const gchar *name;
GDir *dir;
gchar *dirname;
GList *to_remove = NULL;
gchar *target = NULL;
gchar *album_path = NULL;
g_return_if_fail (artist != NULL && artist[0] != '\0');
dirname = g_build_filename (g_get_user_cache_dir (), "media-art", NULL);
if (!g_file_test (dirname, G_FILE_TEST_EXISTS)) {
/* Ignore this and just quit the function */
g_debug ("Nothing to do, media-art cache directory '%s' doesn't exist", dirname);
g_free (dirname);
return TRUE;
}
dir = g_dir_open (dirname, 0, &error);
if (error) {
g_critical ("Call to g_dir_open() failed, %s", error->message);
g_error_free (error);
g_free (dirname);
if (dir) {
g_dir_close (dir);
}
return FALSE;
}
table = g_hash_table_new_full (g_str_hash,
g_str_equal,
(GDestroyNotify) g_free,
(GDestroyNotify) NULL);
/* The get_path API does stripping itself */
media_art_get_path (artist, album, "album", NULL, &target, NULL);
g_hash_table_replace (table, target, target);
/* Also add the file to which the symlinks are made */
media_art_get_path (NULL, album, "album", NULL, &album_path, NULL);
g_hash_table_replace (table, album_path, album_path);
/* Perhaps we should have an internal list of media art files that we made,
* instead of going over all the media art (which could also have been made
* by other softwares) */
for (name = g_dir_read_name (dir); name != NULL; name = g_dir_read_name (dir)) {
gpointer value;
gchar *full;
full = g_build_filename (dirname, name, NULL);
value = g_hash_table_lookup (table, full);
if (!value) {
g_message ("Removing media-art file '%s': no album exists with songs for this media-art cache", name);
to_remove = g_list_prepend (to_remove, (gpointer) full);
} else {
g_free (full);
}
}
if (dir) {
g_dir_close (dir);
}
g_free (dirname);
g_list_foreach (to_remove, (GFunc) g_unlink, NULL);
g_list_foreach (to_remove, (GFunc) g_free, NULL);
g_list_free (to_remove);
if (table) {
g_hash_table_unref (table);
}
return TRUE;
}
