[MERGE] fix non-ascii messages handling in 'missing' command

[Alexander Belchenko]

John Arbash Meinel пишет:
> I really don't like swallowing the exception this way, but if win32
> python is going to raise IOError with errno = 0 and text 'Error', there
> isn't much we can do. They aren't raising EPIPE, and it seems to be
> EINVAL to call flush() on sys.stdout once the pipe is gone.
> 
> We could remove the sys.stdout.flush() call, but the whole point is to
> force something like EPIPE to be handled inside the exception handlers,
> rather than while the stack is unwinding at the end.
> 
> I'll have to think of a way to test this. 'less' does exist on win32, so
> it might be sufficient to call run_bzr_subprocess with the output piped
> into less. It's just tricky to force real win32 errors in the current
> test suite.

Well, actually on win32 by default exists only 'more' pager. I've 
install 'less' manually from http://gnuwin32.sf.net project. On other 
hand -- when 'more' used the same error with pipe is raised.

> ------------------------------------------------------------------------
> 
> === modified file 'bzrlib/commands.py'
> --- bzrlib/commands.py	2006-06-20 05:32:16 +0000
> +++ bzrlib/commands.py	2006-06-28 19:54:25 +0000
> @@ -669,7 +669,8 @@
>              if not hasattr(e, 'errno'):
>                  raise
>              if e.errno != errno.EPIPE:
> -                raise
> +                if sys.platform != 'win32' or e.errno != 0:
> +                    raise
>              pass
>          except KeyboardInterrupt:
>              pass
> @@ -692,7 +693,14 @@
>              return run_bzr(argv)
>          finally:
>              # do this here inside the exception wrappers to catch EPIPE
> -            sys.stdout.flush()
> +            if sys.platform != 'win32':
> +                sys.stdout.flush()
> +            else:
> +                try:
> +                    sys.stdout.flush()
> +                except IOError, e:
> +                    if e.errno != errno.EINVAL:
> +                        raise
>      except Exception, e:
>          # used to handle AssertionError and KeyboardInterrupt
>          # specially here, but hopefully they're handled ok by the logger now
> 

This changes seems reasonable for me.

--
Alexander

P.S. My preferred nick as short name is 'bialix'. You can use it for pqm 
stuff.