From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Michael Albinus Newsgroups: gmane.emacs.bugs Subject: bug#3736: 23.1.50; Please use null-device instead of /dev/null Date: Sat, 21 Nov 2020 16:16:01 +0100 Message-ID: <87o8jqu4em.fsf@gmx.de> References: <4A4CB03E.2000602@gnu.org> <87tz1v2nn6.fsf@turtle.gmx.de> <4A4CC0B7.9040907@gnu.org> <87y2ix5mty.fsf@gmx.de> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="40302"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) Cc: 3736@debbugs.gnu.org, Sven Joachim , Jason Rumney To: Stefan Kangas Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Sat Nov 21 16:17:51 2020 Return-path: Envelope-to: geb-bug-gnu-emacs@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 1kgUe7-000APf-9b for geb-bug-gnu-emacs@m.gmane-mx.org; 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Sat, 21 Nov 2020 16:16:03 +0100 In-Reply-To: <87y2ix5mty.fsf@gmx.de> (Michael Albinus's message of "Thu, 19 Nov 2020 17:32:41 +0100") X-Provags-ID: V03:K1:hCoQJP0cNdO6n9l5SA15OantHR5VZWp/4UmlfLUHyMnT6GeGFhu UX7rTAfM1XjfCfXcQGKoeABCwI/GFsWHv4Da9jVJx8WNE3ZUn9wRcvnUmBwxj6HNmIKcYah aUaJvt0cIuUP7SrNjk1/lfeXbxSY94GVirTju+nkzwzVQLPdFcERJf6N2mvUs0xlVF0A7fp euSv5i3maxCqFwjySAgAw== X-UI-Out-Filterresults: notjunk:1;V03:K0:zcL8rOMmnf8=:b/W2jhYTRWdmcNZkHD7T9b SJJnAW8F5reWc+ehEUrf42oP6nR1+coFMo/VCMDaLsIIAO1J7zRRmJhU6CBzXG6CZDsXsP5Xg k0GzDPJXyRFG3FRJRWTWtYf+i9jFVhT9IniP17CzHjvHdTOZOYj5LHnHsSXxDp804ptLTCRkI y+PJ223dbs64Hw06/Z2hBluWvRJRnrob+Rg9ZUhlVHDyu1BfMGuIJ7Y5BGDo0TjkMrUvzvZXM VilYJ7Vz8caUkTbzZaaORNJ4iFiDdL3bsW+U2b0pJdoEc70ze+gNOLWj2ePFuBs5UscJz5OEZ t/AIJpQmzZZ5JibniCNkAjq65jRweKzV6BepEKd46TFQMtYjoL/bb57tir9CBkE9qnH7M/ZHi HG6nbPbj0TiSUPVF1HEldqDa9xVcyJwVzpZGRR3QjAT9wJCgWLb1BrQZ168OdODobjLJSO/ja smsvrkKXtdkKezt3x974AONigTtZaItFnTyXPhAkTvjWEYqZU+n8R8zqY7chGgMrVD70nP8KI C2IBMwXaSBYLMVQ+9gZ1ZqznQuNRhX++i7x2oeXwW6vVZflStINvqxrpYDTlhlVcmDAO7BYB8 DURK4RQEtAq1nEoVH/pJ7XyXdxngPaydAEwJhN27+N5ZY/PecgmczxdTkf1U0MOC+PM4qDfNi oCkGkE0UycJlQkUzng3CM+BGZlkIpDxVXsyQI58N0K6tBq1eMdVrgvvu8DWK5e85a3oeFaXxN mI+HTe3QTQ1Exs3fiQq8X9iuemKZMj4qQzwl++ndpseBTVRmyf7uvpaRwFCgXMobkwFRFU5e X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.io gmane.emacs.bugs:193811 Archived-At: Michael Albinus writes: Hi Stefan, >>>> Probably the best solution is for tramp to implement a general >>>> server-local-variable mechanism, as there are probably other variables >>>> that need different values for different servers too. The user could >>>> then configure a variable (such as tramp-server-local-variable-alist) >>>> to define any such variables that they need to, which would then be >>>> let bound as appropriate in tramp functions. >>> >>> Nice idea. Tramp does it already in some cases (for example for >>> environment variables of the remote host), but your proposal is more >>> general. > >> Now that we have this concept of "connection local variables", does that >> satisfy the requirement to be able to specify null-device for remote >> hosts? > > Yes, shall be possible. I'll see what I could do (with slow progress, as > it happens these days to me). Target will be Emacs 28. I've added the functions null-device and path-separator, which return the connection-local values of the respective variables. As first shot, I've changed grep.el using this. Let's see whether there's feedback. However, people will see a difference only if they work on a local w32 system, and apply Emacs's grep command on a remote machine -- a constellation I cannot test myself. I'll continue to adapt other Emacs Lisp files. Best regards, Michael.