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* bug#32090: 26.1; connection-local-variables do not match as described
@ 2018-07-08  4:10 Christopher Cooper
  2018-07-08  9:46 ` Michael Albinus
  2018-07-08 18:23 ` bug#32090: Fwd: " Michael Albinus
  0 siblings, 2 replies; 9+ messages in thread
From: Christopher Cooper @ 2018-07-08  4:10 UTC (permalink / raw)
  To: 32090

According to the docstring for 'connection-local-criteria-alist',
"CRITERIA is a plist identifying a connection and the application
using this connection. ... All properties are optional; if
CRITERIA is nil, it always applies."

This does not appear to be true. In fact, this is plainly evident by
simple visual inspection of 'connection-local-get-profiles'. Only
:application seems to be optional.

Reproduction is quite simple. Run emacs -Q and eval the following elisp:

(defvar test--var nil)
(setf enable-connection-local-variables t)
(connection-local-set-profile-variables 'test-profile '((test--var . t)))
(connection-local-set-profiles nil 'test-profile)

Now open any TRAMP connection. Switch to the TRAMP buffer (where
connection-local-variables should have taken effect) and do
M-: test--var. The result is nil.

If you conduct the same test, but specify the :protocol, :user, and
:machine as part of the criteria in the 'connection-local-set-profiles'
call, test--var will evaluate to t, which is correct.

At best this is a case of misleading documentation, and at worst it is a
feature that never got implemented. Connection-local variables would be
very useful to me if they worked as described. I am glad to provide more
info or help in any capacity.


In GNU Emacs 26.1 (build 1, x86_64-pc-linux-gnu, GTK+ Version 3.22.30)
 of 2018-07-05 built on juergen
Windowing system distributor 'The X.Org Foundation', version 11.0.12000000
System -e Description:    Arch Linux

Configured using:
 'configure --prefix=/usr --sysconfdir=/etc --libexecdir=/usr/lib
 --localstatedir=/var --with-x-toolkit=gtk3 --with-xft --with-modules
 'CFLAGS=-march=x86-64 -mtune=generic -O2 -pipe -fstack-protector-strong
 -fno-plt' CPPFLAGS=-D_FORTIFY_SOURCE=2
 LDFLAGS=-Wl,-O1,--sort-common,--as-needed,-z,relro,-z,now'

Configured features:
XPM JPEG TIFF GIF PNG RSVG IMAGEMAGICK SOUND GPM DBUS GSETTINGS NOTIFY
ACL GNUTLS LIBXML2 FREETYPE M17N_FLT LIBOTF XFT ZLIB TOOLKIT_SCROLL_BARS
GTK3 X11 MODULES THREADS LIBSYSTEMD LCMS2

Important settings:
  value of $LANG: en_US.UTF-8
  value of $XMODIFIERS: @im=ibus
  locale-coding-system: utf-8-unix

Major mode: Magit

Minor modes in effect:
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  buffer-read-only: t
  line-number-mode: t
  transient-mark-mode: t

Load-path shadows:
/home/cooperc/.emacs.d/elpa/git-commit-2.13.0/git-commit hides
/home/cooperc/.emacs.d/elpa/magit-2.13.0/git-commit

Features:
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erc-backend erc-compat mm-archive network-stream starttls url-cache smex
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base64 format env code-pages mule custom widget hashtable-print-readable
backquote dbusbind inotify lcms2 dynamic-setting system-font-setting
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make-network-process emacs)

Memory information:
((conses 16 1489394 166969)
 (symbols 48 46723 1)
 (miscs 40 4164 3342)
 (strings 32 243899 19322)
 (string-bytes 1 6360239)
 (vectors 16 100112)
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 (floats 8 409 1000)
 (intervals 56 139320 3213)
 (buffers 992 46))





^ permalink raw reply	[flat|nested] 9+ messages in thread

end of thread, other threads:[~2018-11-08  9:27 UTC | newest]

Thread overview: 9+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2018-07-08  4:10 bug#32090: 26.1; connection-local-variables do not match as described Christopher Cooper
2018-07-08  9:46 ` Michael Albinus
2018-07-08 13:09   ` Christopher Cooper
2018-07-09 14:15     ` Michael Albinus
2018-09-05  9:02       ` Michael Albinus
2018-09-05 18:08         ` Glenn Morris
2018-09-06  7:07           ` Michael Albinus
2018-11-08  9:27         ` Michael Albinus
2018-07-08 18:23 ` bug#32090: Fwd: " Michael Albinus

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