[GHC] #13489: openTempFile fails when the template parameter contain a path separator

[GHC]

#13489: openTempFile fails when the template parameter contain a path separator
-------------------------------------+-------------------------------------
        Reporter:  harendra          |                Owner:  (none)
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  libraries/base    |              Version:  8.0.1
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  Poor/confusing    |  Unknown/Multiple
  error message                      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
-------------------------------------+-------------------------------------

Comment (by bgamari):

 I don't think we want to create any directories in `openTempFile`.
 Afterall, it would then be unclear whether the user should cleanup the
 parent directories or just the file.

 Consequently, I think the right solution here is to simply disallow path
 separators in the template: if the user wants to specify a directory
 component then they can provide it in the first argument.

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/13489#comment:1>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler