Would it be possible to also treat signals (128 and above) as 'special' values
as well (as I've seen some merge tools self destruct like that from time to
----- Original Message -----
Cc: Tom Tanner (BLOOMBERG/ LONDON), dav...@gmail.com, email@example.com
At: 08/14/16 04:21:18
John Keeping <j...@keeping.me.uk> writes:
> At the moment difftool's "trust exit code" logic always suppresses the
> exit status of the diff utility we invoke. This is useful because we
> don't want to exit just because diff returned "1" because the files
> differ, but it's confusing if the shell returns an error because the
> selected diff utility is not found.
> POSIX specifies 127 as the exit status for "command not found" and 126
> for "command found but is not executable"  and at least bash and dash
> follow this specification, while diff utilities generally use "1" for
> the exit status we want to ignore.
> Handle 126 and 127 as special values, assuming that they always mean
> that the command could not be executed.
Sounds like a reasonable thing to do. Will queue; thanks.