rollback to 3428, before the mysterious removal of libs/* at 3431/3432

git-svn-id: svn://localhost/ardour2/branches/3.0@3435 d708f5d6-7413-0410-9779-e7cbd77b26cf

1 files changed, 65 insertions, 0 deletions

diff --git a/libs/ardour/ardour/session_state_utils.h b/libs/ardour/ardour/session_state_utils.h
new file mode 100644
index 0000000000..8825b041f3
--- /dev/null
+++ b/libs/ardour/ardour/session_state_utils.h
@@ -0,0 +1,65 @@
+/*
+	Copyright (C) 2007 Tim Mayberry 
+
+	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., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#ifndef ARDOUR_SESSION_STATE_UTILS_INCLUDED
+#define ARDOUR_SESSION_STATE_UTILS_INCLUDED
+
+#include <vector>
+#include <string>
+
+#include <pbd/filesystem.h>
+
+namespace ARDOUR {
+
+using std::string;
+using std::vector;
+using namespace PBD;
+
+/**
+ * Attempt to create a backup copy of a file.
+ *
+ * A copy of the file is created in the same directory using 
+ * the same filename with the backup suffix appended.
+ *
+ * @return true if successful, false otherwise.
+ */
+bool create_backup_file (const sys::path & file_path);
+
+/**
+ * Get the absolute paths to all state files in the directory 
+ * at path directory_path.
+ *
+ * @param directory_path The absolute path to a directory.
+ * @param result vector to contain resulting state files.
+ */
+void get_state_files_in_directory (const sys::path & directory_path,
+		vector<sys::path>& result);
+
+/**
+ * Given a vector of paths to files, return a vector containing
+ * the filenames without any extension.
+ *
+ * @param file_paths a vector containing the file paths
+ * @return a vector containing a list of file names without any 
+ * filename extension.
+ */
+vector<string> get_file_names_no_extension (const vector<sys::path> & file_paths);
+
+} // namespace ARDOUR
+
+#endif