[sysadmin-bin] ftpadmin: lazily init moduleinfo, prevversion so data is correct when many tarball versions are inst

[Olav Vitters <ovitters src gnome org>]

commit 4fd2cf385c690f4635fbc20ae449cf67e007c515
Author: Olav Vitters <olav vitters nl>
Date:   Thu May 26 11:46:15 2011 +0200

    ftpadmin: lazily init moduleinfo, prevversion so data is correct when many tarball versions are installed at once

 ftpadmin |   19 +++++++++++++++----
 1 files changed, 15 insertions(+), 4 deletions(-)
---
diff --git a/ftpadmin b/ftpadmin
index 83f9501..e45b0dc 100755
--- a/ftpadmin
+++ b/ftpadmin
@@ -799,13 +799,24 @@ class InstallModule(BasicInfo):
             self.destination = os.path.join(self.FTPROOT, self.section, self.fileinfo.module, self.majmin)
             if DEBUG:
                 self.destination = os.path.join(self.FTPROOT_DEBUG, self.section, self.fileinfo.module, self.majmin)
-
-            self.moduleinfo = ModuleInfo(self.fileinfo.module, section=self.section)
-            self.prevversion = get_latest_version(self.moduleinfo.versions, self.version)
         else:
-            self.moduleinfo = None
+            self._moduleinfo = None
             self.module = None
 
+    @property
+    def moduleinfo(self):
+        if not hasattr(self, '_moduleinfo'):
+            self._moduleinfo = ModuleInfo(self.fileinfo.module, section=self.section)
+
+        return self._moduleinfo
+
+    @property
+    def prevversion(self):
+        if not hasattr(self, '_prevversion'):
+            self._prevversion = get_latest_version(self.moduleinfo.versions, self.version)
+
+        return self._prevversion
+
     def confirm_install(self):
 
         print """