* apt/*.py: Initial rename work for Bug#481061

A new module, apt.deprecation, is introduced containing functions and
classes which assist in the deprecation.

The apt_pkg extension gets a new attribute, _COMPAT_0_7 which can be set
by defining COMPAT_0_7 at compile time (-DCOMPAT_0_7).
      
The names are changed, and compatibility functions are enabled if
bool(apt_pkg._COMPAT_0_7) == True, i.e. if the package has been built with
backward compatibility fixes.

This commit changes the apt and aptsources packages, the apt_pkg and
apt_inst extensions will be the next renames.

1 files changed, 5 insertions, 1 deletions

diff --git a/aptsources/sourceslist.py b/aptsources/sourceslist.py
index 1dfd870f..fdc0f029 100644
--- a/aptsources/sourceslist.py
+++ b/aptsources/sourceslist.py
@@ -33,6 +33,7 @@ import time
 
 import apt_pkg
 from aptsources.distinfo import DistInfo
+from apt.deprecation import function_deprecated_by
 
 
 # some global helpers
@@ -309,7 +310,7 @@ class SourcesList(object):
         """ remove the specified entry from the sources.list """
         self.list.remove(source_entry)
 
-    def restoreBackup(self, backup_ext):
+    def restore_backup(self, backup_ext):
         " restore sources.list files based on the backup extension "
         file = apt_pkg.Config.FindFile("Dir::Etc::sourcelist")
         if os.path.exists(file+backup_ext) and \
@@ -321,6 +322,9 @@ class SourcesList(object):
             if os.path.exists(file+backup_ext):
                 shutil.copy(file+backup_ext, file)
 
+    if apt_pkg._COMPAT_0_7:
+        restoreBackup = function_deprecated_by(restore_backup)
+
     def backup(self, backup_ext=None):
         """ make a backup of the current source files, if no backup extension
             is given, the current date/time is used (and returned) """