[game-data-packager] 08/16: Lazily initialize PackagingTask.packaging

[Simon McVittie]

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smcv pushed a commit to branch master
in repository game-data-packager.

commit ce53d5bbc11da5a1b11ec97e70e07d9b1e518a98
Author: Simon McVittie <smcv at debian.org>
Date:   Wed Jan 6 21:43:56 2016 +0000

    Lazily initialize PackagingTask.packaging
---
 game_data_packager/build.py | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

diff --git a/game_data_packager/build.py b/game_data_packager/build.py
index 961a9b4..d0cdfcb 100644
--- a/game_data_packager/build.py
+++ b/game_data_packager/build.py
@@ -345,11 +345,8 @@ class PackagingTask(object):
         # A GameData object.
         self.game = game
 
-        if packaging is None:
-            packaging = get_native_packaging_system()
-
         # A packaging system.
-        self.packaging = packaging
+        self.__packaging = packaging
 
         # A temporary directory.
         self.__workdir = None
@@ -413,6 +410,14 @@ class PackagingTask(object):
                 logger.warning('error removing "%s":' % path, exc_info=ei))
         self._cleanup_dirs = set()
 
+    @property
+    def packaging(self):
+        """The PackagingSystem in use."""
+        if self.__packaging is None:
+            self.__packaging = get_native_packaging_system()
+
+        return self.__packaging
+
     def get_workdir(self):
         if self.__workdir is None:
             self.__workdir = tempfile.mkdtemp(prefix='gdptmp.')

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