Bug 903534

Description of problem:

Not able to compare files from Graphical interface. Always display message  "Differences exist in a file that is not readable by all. Re-deployment of configuration file is recommended."

Version-Release number of selected component (if applicable):
rhncfg*-5.10.27-11.el5sat.noarch

How reproducible:
Always

Steps to Reproduce:
1. Install rhncfg*-5.10.27-11.el5sat.noarch packages on client system.
2. System should be subscribed to a config channel and config file.
3. On clinet machine permission should be root:root 664 /root/test
4. Now try to shedule comparison from GUI - systemprofile -> configuration -> compare files
5. Run rhn_check -vvv on client machine.


Actual results:

Always display messgae "Differences exist in a file that is not readable by all. Re-deployment of configuration file is recommended."

  
Expected results:

Should display result of comparison.

Additional info:
This is a regression bug, GUI functionality is working correctly using rhncfg*-5.10.27-8.el6sat.noarch packages.

After debugging further, we can see the code belongs to this issue in /usr/share/rhn/config_common/file_utils.py -


128                 else:
129                     raise e
130         else:
131             result = ''.join(diff(path, temp_file))
132 

On line 131 is the code which is used to call the diff function with a src and dst. Here path which is the actual file on the client system is sent as SOURCE and temp_file is being set as DESTINATION.

If I swap the values on line 131 making the call as 
result = ''.join(diff(temp_file, path))
then the result of compare events scheduled by WEB UI works perfectly fine.