From: Dmitry Gutov <dgutov@yandex.ru>
To: Eli Zaretskii <eliz@gnu.org>,
Noam Postavsky <npostavs@users.sourceforge.net>
Cc: 23779@debbugs.gnu.org
Subject: bug#23779: 25.0.95; consing "SHELLVAR" onto process-environment doesn't remove it from subprocess env
Date: Fri, 17 Jun 2016 15:17:38 +0300 [thread overview]
Message-ID: <962d42ee-847c-507e-d457-2d6f9a38e955@yandex.ru> (raw)
In-Reply-To: <837fdocmrl.fsf@gnu.org>
On 06/17/2016 10:11 AM, Eli Zaretskii wrote:
> Where does it say that you can use 'cons' or 'push', and only them, to
> the effect of removing the variable from the environment passed to
> child processes?
That works with other Emacs features, such as auto-mode-alist.
You can also override the values in process-environment using a cons
(which strongly suggests the semantics of "first element wins"). Just
not "remove" them, currently.
> process-environment is just a simple list, so these
> two functions just _add_ another member to the list, they don't remove
> the old member.
What would be the point of ever using the "only its name" form if you
have to scrub process-environment of all other mentions of this variable?
> My reading of the last sentence you cite is that you must manually
> remove the old member "SHELL=whatever", and _then_ add a member that
> has no value.
If I've removed all mentions of "GIT_DIR" in there, it's already
removed, and the subprocesses shouldn't see it. Why add the new member then?
next prev parent reply other threads:[~2016-06-17 12:17 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-06-17 3:33 bug#23779: 25.0.95; consing "SHELLVAR" onto process-environment doesn't remove it from subprocess env Noam Postavsky
2016-06-17 7:11 ` Eli Zaretskii
2016-06-17 12:17 ` Dmitry Gutov [this message]
2016-06-17 14:01 ` Eli Zaretskii
2016-06-17 14:12 ` Dmitry Gutov
2016-06-17 14:19 ` Eli Zaretskii
2016-06-17 14:47 ` Dmitry Gutov
2016-06-17 16:52 ` Andreas Schwab
2016-06-17 16:55 ` Dmitry Gutov
2016-06-17 17:06 ` Eli Zaretskii
2016-06-17 19:01 ` Dmitry Gutov
2016-06-17 20:10 ` Eli Zaretskii
2016-06-17 21:26 ` Dmitry Gutov
2016-06-18 7:51 ` Eli Zaretskii
2016-06-18 1:36 ` Noam Postavsky
2016-06-18 1:44 ` Dmitry Gutov
2016-06-19 2:27 ` Paul Eggert
2016-06-19 15:01 ` Eli Zaretskii
2016-06-19 22:53 ` Paul Eggert
2016-06-20 14:21 ` Eli Zaretskii
2016-06-21 13:53 ` Dmitry Gutov
2016-06-21 15:21 ` Eli Zaretskii
2016-06-21 15:24 ` Dmitry Gutov
2016-06-21 16:12 ` Eli Zaretskii
2016-06-21 23:05 ` Dmitry Gutov
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