Replace code for finding ControlProtocols/Surface plugins with a portable equivalent.

Remove Session::control_protocol_path and the supporting non-portable
Session::suffixed_search_path from Session.

Add ARDOUR::control_protocol_search_path which is used in place of
Session::control_protocol_path

Replace ARDOUR::get_system_module_path with ARDOUR::system_module_directory which
is used by ARDOUR::control_protocol_search_path

Export ARDOUR_SURFACES_PATH in gtk2_ardour/ardev_common.sh which is returned
by ARDOUR::control_protocol_search_path if defined. This means the control surfaces
in the libs/surfaces/* directories can now be used without installing them.

Add pbd/file_utils.h/cc containing functions for finding files matching a certain
pattern

Update documentation in SearchPath and add another constructor that takes
a sys::path


git-svn-id: svn://localhost/ardour2/trunk@2049 d708f5d6-7413-0410-9779-e7cbd77b26cf

1 files changed, 52 insertions, 0 deletions

diff --git a/libs/ardour/control_protocol_search_path.cc b/libs/ardour/control_protocol_search_path.cc
new file mode 100644
index 0000000000..aac83c602a
--- /dev/null
+++ b/libs/ardour/control_protocol_search_path.cc
@@ -0,0 +1,52 @@
+/*
+    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.
+
+*/
+
+#include <glibmm/miscutils.h>
+
+#include <ardour/control_protocol_search_path.h>
+#include <ardour/directory_names.h>
+#include <ardour/filesystem_paths.h>
+
+namespace {
+	const char * const surfaces_env_variable_name = "ARDOUR_SURFACES_PATH";
+} // anonymous
+
+namespace ARDOUR {
+
+SearchPath
+control_protocol_search_path ()
+{
+	bool surfaces_path_defined = false;
+	SearchPath spath_env(Glib::getenv(surfaces_env_variable_name, surfaces_path_defined));
+	
+	if (surfaces_path_defined)
+	{
+		return spath_env;
+	}
+
+	SearchPath spath(user_config_directory ());
+
+	spath += system_module_directory ();
+
+	spath.add_subdirectory_to_paths(surfaces_dir_name);
+
+	return spath;
+}
+
+} // namespace ARDOUR