[giggle] Add helper method for removing a directory recursively

[Javier Jardón <jjardon src gnome org>]

commit cec4aeabe5d6ae24b25e992a7899ed233b3e1dcf
Author: Florian Müllner <florian muellner gmail com>
Date:   Fri May 7 04:27:32 2010 +0200

    Add helper method for removing a directory recursively
    
    Credit goes to Paolo Bacchilega, who wrote this code for file-roller.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=608267

 src/giggle-helpers.c |   65 ++++++++++++++++++++++++++++++++++++++++++++++++++
 src/giggle-helpers.h |    2 +
 2 files changed, 67 insertions(+), 0 deletions(-)
---
diff --git a/src/giggle-helpers.c b/src/giggle-helpers.c
index d5419ba..cd35ce0 100644
--- a/src/giggle-helpers.c
+++ b/src/giggle-helpers.c
@@ -212,3 +212,68 @@ giggle_open_file (GtkWidget  *widget,
 	g_free (path);
 	g_free (uri);
 }
+
+static gboolean
+delete_directory_recursive (GFile *dir, GError **error)
+{
+	gchar *uri;
+	GFileEnumerator *file_enum;
+	GFileInfo *info;
+	gboolean _failure = FALSE;
+
+	if (error != NULL)
+		*error = NULL;
+
+	file_enum = g_file_enumerate_children (dir,
+					       G_FILE_ATTRIBUTE_STANDARD_NAME ","
+					       G_FILE_ATTRIBUTE_STANDARD_TYPE,
+					       G_FILE_QUERY_INFO_NOFOLLOW_SYMLINKS, NULL, error);
+
+	uri = g_file_get_uri (dir);
+	while (! _failure &&
+               (info = g_file_enumerator_next_file (file_enum, NULL, error))) {
+		gchar *child_uri;
+		GFile *child;
+
+		child_uri = g_build_filename (uri, g_file_info_get_name (info), NULL);
+		child = g_file_new_for_uri (child_uri);
+		g_free (child_uri);
+
+		switch (g_file_info_get_file_type (info)) {
+		case G_FILE_TYPE_DIRECTORY:
+			if (! delete_directory_recursive (child, error))
+				_failure = TRUE;
+			break;
+		default:
+			if (! g_file_delete (child, NULL, error))
+				_failure = TRUE;
+			break;
+		}
+
+		g_object_unref (child);
+		g_object_unref (info);
+	}
+	if (file_enum)
+		g_object_unref (file_enum);
+	g_free (uri);
+
+	if (! _failure && ! g_file_delete (dir, NULL, error))
+		_failure = TRUE;
+
+	return !_failure;
+}
+
+void
+giggle_remove_directory_recursive (const gchar *path)
+{
+	GFile *dir;
+	GError *error = NULL;
+
+	dir = g_file_new_for_path (path);
+	delete_directory_recursive (dir, &error);
+	if (error) {
+		g_warning ("Cannot delete %s: %s", path, error->message);
+		g_error_free (error);
+	}
+	g_object_unref (dir);
+}
diff --git a/src/giggle-helpers.h b/src/giggle-helpers.h
index c9df2e5..5d39ad9 100644
--- a/src/giggle-helpers.h
+++ b/src/giggle-helpers.h
@@ -43,6 +43,8 @@ void                giggle_open_file                      (GtkWidget         *wi
 void                giggle_error_dialog                   (GtkWindow         *window,
                                                            GError            *error);
 
+void                giggle_remove_directory_recursive     (const gchar       *uri);
+
 G_END_DECLS
 
 #endif /* __GIGGLE_DUMMY_H__ */