From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.devel Subject: Re: [PATCH] Buffer-local process environments Date: Sat, 28 Aug 2021 15:37:04 +0300 Message-ID: <837dg5oidr.fsf@gnu.org> References: <87eeets6jf.fsf@gmail.com> <8735v99f4i.fsf@gmail.com> <87y2d1xada.fsf@gmx.de> <877dkkcjrj.fsf@gmail.com> <87tunoyzzd.fsf@gmx.de> <87eeerby1n.fsf@gmail.com> <87a6pfepo6.fsf@gmx.de> <874kflmzn3.fsf@gmail.com> <87wns9glm1.fsf@gmx.de> <87y2co4hto.fsf@gmail.com> <87v97reubc.fsf@gmx.de> <87lf4lkb1w.fsf_-_@gmail.com> Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="28088"; mail-complaints-to="usenet@ciao.gmane.io" Cc: michael.albinus@gmx.de, monnier@iro.umontreal.ca, emacs-devel@gnu.org To: Augusto Stoffel Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Sat Aug 28 14:38:04 2021 Return-path: Envelope-to: ged-emacs-devel@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1mJxb1-000792-Rj for ged-emacs-devel@m.gmane-mx.org; Sat, 28 Aug 2021 14:38:03 +0200 Original-Received: from localhost ([::1]:58204 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mJxaz-0008Hz-UD for ged-emacs-devel@m.gmane-mx.org; Sat, 28 Aug 2021 08:38:01 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:39932) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mJxaL-0007b9-G7 for emacs-devel@gnu.org; Sat, 28 Aug 2021 08:37:22 -0400 Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]:34622) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mJxaJ-0003Dn-SW; Sat, 28 Aug 2021 08:37:19 -0400 Original-Received: from 84.94.185.95.cable.012.net.il ([84.94.185.95]:4860 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mJxaJ-00037f-FT; Sat, 28 Aug 2021 08:37:19 -0400 In-Reply-To: <87lf4lkb1w.fsf_-_@gmail.com> (message from Augusto Stoffel on Sat, 28 Aug 2021 14:28:59 +0200) X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Original-Sender: "Emacs-devel" Xref: news.gmane.io gmane.emacs.devel:273288 Archived-At: > From: Augusto Stoffel > Date: Sat, 28 Aug 2021 14:28:59 +0200 > > Specifically, whenever `compile' is called from a buffer where > `process-environment' is local, the *compilation* buffer inherits the > original buffer's `process-environment' and `exec-path'. When > `process-environment' is not local in the buffer from which `compile' > is called, any local values of those two variables are killed in the > *compilation* buffer as well. (There's no check for buffer-localness > of `exec-path' because it's usually misguided to keep it out of sync > with PATH.) Thanks. The patch should be accompanied by a suitable documentation change, of course. And I'm not sure I understand the rationale, and you didn't describe it. Environment variables and PATH in particular are generally global on the entire system, so what does this feature correspond to? separate environment variables in each shell window? Why would anyone want to do that? And why should we make it easier by providing buffer-local values of those, instead of letting each Lisp program that needs it let-bind the variables instead?