Re: local failure

[Laurent Picquet]

Ok, thanks for the clarification.

This behaviour is not fully documented and I believe this should be
addressed.

I don't mind participating. Could you point me in the right direction to do
that and raise a pull request?

Regards,
Laurent

On Sat, 30 May 2020, 16:32 Oğuz, <oguzismailuysal@gmail.com> wrote:

>
>
> 30 Mayıs 2020 Cumartesi tarihinde Laurent Picquet <lpicquet@gmail.com>
> yazdı:
>
>> Hello Dale,
>>
>> This is really interesting.
>> Should the 'local' command be the one able to detect that the assignment
>> to
>> the variable had an non-zero exit code and return the non-zero exit code?
>>
>> as a developer, it is counter-intuitive that the 'local' command tells us
>> everything is ok when it wasn't. If feel it should know that the
>> assignment
>> encountered a problem and should report it
>>
>>
> Everything is ok for `local` though; it takes a valid assignment statement
> and successfully evaluates that. So it's not that the assignment
> encountered a problem, but that the expansion has failed, which has nothing
> to do with `local`. So there is no reason for `local` to return a non-zero
> exit status in that case.
>
>
>> The return status is zero unless local is used outside a function, an
>> invalid name is supplied, or name is a readonly variable.
>>
>>
>>
>> On Fri, 29 May 2020 at 03:43, Dale R. Worley <worley@alum.mit.edu> wrote:
>>
>> > It's a subtle point.  See this paragraph in the bash manual page:
>> >
>> >        If there is a command name left after expansion, execution
>> >        proceeds as described below.  Otherwise, the command exits.  If
>> >        one of the expansions contained a command substitution, the exit
>> >        status of the command is the exit status of the last command
>> >        substitution performed.  If there were no command substitutions,
>> >        the command exits with a status of zero.
>> >
>> > In one of your examples, a "local" command is generated using a command
>> > substitution, so the exit status is that of the local command.  In the
>> > other, only an assignment is done, which is not a command, so the exit
>> > status is that of the last command substitution.
>> >
>> > Dale
>> >
>>
>>
>> --
>>
>>
>> --
>>
>> Laurent Picquet
>>
>> 16, Hunters Chase
>>
>> South Godstone
>>
>> RH98HR
>>
>> England
>>
>> tel: 07882 356 104
>>
>
>
> --
> Oğuz
>
>