[PATCH rhel5-branch] Ignore duplicate opening of rpm package file (#506361).

[Radek Vykydal]

Yum calls open file callback twice for some packages which
makes our callback try second download and fail in some
cases. See the bz for details.

Resolves: rhbz#506361

Though this seems to be a yum bug, there is no will to fix it
there (it doesn't cause errors on installed system) so here
I am sending a patch on anaconda side.
---
 yuminstall.py |    8 ++++++--
 1 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/yuminstall.py b/yuminstall.py
index 209a8d6..a4c0209 100644
--- a/yuminstall.py
+++ b/yuminstall.py
@@ -134,13 +134,17 @@ class simpleCallback:

nvra = "%s" %(po,)
             self.instLog.write(self.modeText % (nvra,))
+            if nvra in self.files:
+                self.instLog.write("RPMCALLBACK_INST_OPEN_FILE already called for the file, skipping")
+                fn = self.files[nvra].name
+                f = open(fn, 'r')
+                self.files[nvra] = f

self.instLog.flush()
-            self.files[nvra] = None

self.size = po.returnSimple('installedsize')

-            while self.files[nvra] == None:
+            while nvra not in self.files:
                 try:
                     fn = repo.getPackage(po)

[Chris Lumens]

> Though this seems to be a yum bug, there is no will to fix it
> there (it doesn't cause errors on installed system) so here
> I am sending a patch on anaconda side.

Ugh, okay, if we have to.

- Chris