From: Augusto Stoffel <arstoffel@gmail.com>
To: 50607@debbugs.gnu.org
Subject: bug#50607: 28.0.50; 'M-x compile' misbehaves if 'process-environment' is buffer-local
Date: Wed, 15 Sep 2021 20:08:07 +0200 [thread overview]
Message-ID: <87h7el4sqg.fsf@gmail.com> (raw)
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This has already been discussed on email-devel but didn't come to a
conclusion. I don't want to linger on it, but I would like the problem
to get assigned a bug number, so it has a chance of being addressed in
the future.
A summary of the problem: suppose buffer A has a buffer-local value of
'process-environment' containing an extra directory in the PATH, and
that a given 'program' is only available on that directory. Then 'M-x
compile RET program RET' will not find 'program', because the
*compilation* buffer will not "inherit" the PATH from A.
For the reasons why one would want/need such a setup, see
https://lists.gnu.org/archive/html/emacs-devel/2021-08/msg01380.html
and other messages in that thread.
Finally, I attach my proposed patch.
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[-- Attachment #2: 0001-Make-compile-respect-buffer-local-process-environmen.patch --]
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From a104e1eae100f01585587df30f49866f3b038785 Mon Sep 17 00:00:00 2001
From: Augusto Stoffel <arstoffel@gmail.com>
Date: Thu, 29 Apr 2021 12:45:04 +0200
Subject: [PATCH] Make 'compile' respect buffer-local process environment
* lisp/progmodes/compile.el (compilation-start): Use
`process-environment' from original buffer in the compilation process.
---
lisp/progmodes/compile.el | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/lisp/progmodes/compile.el b/lisp/progmodes/compile.el
index af7b8292b7..bdf20a3f51 100644
--- a/lisp/progmodes/compile.el
+++ b/lisp/progmodes/compile.el
@@ -1783,6 +1783,8 @@ compilation-start
(replace-regexp-in-string "-mode\\'" "" (symbol-name mode))))
(thisdir default-directory)
(thisenv compilation-environment)
+ (bufferpath (when (local-variable-p 'exec-path) exec-path))
+ (bufferenv (when (local-variable-p 'process-environment) process-environment))
outwin outbuf)
(with-current-buffer
(setq outbuf
@@ -1850,6 +1852,12 @@ compilation-start
;; NB: must be done after (funcall mode) as that resets local variables
(setq-local compilation-directory thisdir)
(setq-local compilation-environment thisenv)
+ (if bufferpath
+ (setq-local exec-path bufferpath)
+ (kill-local-variable 'exec-path))
+ (if bufferenv
+ (setq-local process-environment bufferenv)
+ (kill-local-variable 'process-environment))
(if highlight-regexp
(setq-local compilation-highlight-regexp highlight-regexp))
(if (or compilation-auto-jump-to-first-error
--
2.31.1
next reply other threads:[~2021-09-15 18:08 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-15 18:08 Augusto Stoffel [this message]
2021-09-16 14:06 ` bug#50607: 28.0.50; 'M-x compile' misbehaves if 'process-environment' is buffer-local Lars Ingebrigtsen
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