set-environment-variable Lassi Kortela 05 Dec 2019 00:18 UTC
Re: set-environment-variable John Cowan 05 Dec 2019 19:47 UTC
Re: set-environment-variable hga@xxxxxx 06 Dec 2019 00:28 UTC
Re: set-environment-variable Lassi Kortela 06 Dec 2019 09:55 UTC
Re: set-environment-variable John Cowan 06 Dec 2019 13:20 UTC
Re: set-environment-variable Lassi Kortela 06 Dec 2019 13:53 UTC
Re: set-environment-variable John Cowan 06 Dec 2019 17:51 UTC
Re: set-environment-variable Arthur A. Gleckler 06 Dec 2019 18:45 UTC
Re: set-environment-variable Lassi Kortela 06 Dec 2019 19:00 UTC
Re: set-environment-variable Lassi Kortela 06 Dec 2019 20:40 UTC
Re: set-environment-variable hga@xxxxxx 07 Dec 2019 15:06 UTC
Re: set-environment-variable Lassi Kortela 07 Dec 2019 16:14 UTC
Re: set-environment-variable Lassi Kortela 07 Dec 2019 16:23 UTC
Re: set-environment-variable hga@xxxxxx 07 Dec 2019 16:29 UTC
Re: set-environment-variable John Cowan 07 Dec 2019 17:31 UTC
Re: set-environment-variable Lassi Kortela 07 Dec 2019 20:12 UTC
Is set-environment-variable needed after all? Lassi Kortela 07 Dec 2019 20:15 UTC
Re: Is set-environment-variable needed after all? John Cowan 07 Dec 2019 21:12 UTC
Re: Is set-environment-variable needed after all? Lassi Kortela 08 Dec 2019 19:36 UTC
Re: Is set-environment-variable needed after all? hga@xxxxxx 08 Dec 2019 20:07 UTC
Re: Is set-environment-variable needed after all? Lassi Kortela 09 Dec 2019 11:00 UTC
Re: Is set-environment-variable needed after all? Duy Nguyen 09 Dec 2019 03:51 UTC
Re: Is set-environment-variable needed after all? John Cowan 09 Dec 2019 04:20 UTC
Re: Is set-environment-variable needed after all? Lassi Kortela 09 Dec 2019 10:38 UTC
Re: Is set-environment-variable needed after all? Lassi Kortela 09 Dec 2019 10:41 UTC
Re: Is set-environment-variable needed after all? Duy Nguyen 09 Dec 2019 10:45 UTC
Re: Is set-environment-variable needed after all? Lassi Kortela 09 Dec 2019 10:49 UTC
Re: Is set-environment-variable needed after all? John Cowan 09 Dec 2019 19:35 UTC
Re: Is set-environment-variable needed after all? Lassi Kortela 09 Dec 2019 19:45 UTC

Re: set-environment-variable Lassi Kortela 07 Dec 2019 16:14 UTC

> After accepting the PR, following my MO I'm implementing it in Chibi
> Scheme.

Thanks! Sorry I dropped the ball on that. I think Chibi has getenv
already, but not setenv.

> Turns out POSIX gives us an option not exposed by this or
> other Scheme APIs I've glanced at, an overwrite argument, see:
> https://pubs.opengroup.org/onlinepubs/9699919799/functions/setenv.html
>
>> If the environment variable named by envname already exists and the
>> value of overwrite is non-zero, the function shall return success
>> and the environment shall be updated. If the environment variable
>> named by envname already exists and the value of overwrite is zero,
>> the function shall return success and the environment shall remain
>> unchanged.
>
> It is worthwhile to add this to the SRFI 170 API, as, say, an
> optional argument, defaulting to overwrite?

Yeah, that flag has been in the Unix/C API since forever. I've never
seen anyone use it... People always want to overwrite the old value.
Therefore I suggest leaving out the option from the Scheme API.

The WinAPI function is SetEnvironmentVariable().
<https://docs.microsoft.com/en-us/windows/win32/api/winbase/nf-winbase-setenvironmentvariable>