From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Juri Linkov Newsgroups: gmane.emacs.devel Subject: Re: Not clobbering bash history Date: Mon, 20 Nov 2023 19:50:39 +0200 Organization: LINKOV.NET Message-ID: <864jhgs500.fsf_-_@mail.linkov.net> References: <87wmufm7r7.fsf@catern.com> <87fs12jkik.fsf@yahoo.com> <87ttphlqlo.fsf@catern.com> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="9219"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/30.0.50 (x86_64-pc-linux-gnu) Cc: emacs-devel@gnu.org, Spencer Baugh , Po Lu To: brickviking Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Mon Nov 20 18:58:16 2023 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 1r58XI-0002Bv-1r for ged-emacs-devel@m.gmane-mx.org; Mon, 20 Nov 2023 18:58:16 +0100 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1r58WR-0005gK-GH; Mon, 20 Nov 2023 12:57:23 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1r58WO-0005g2-VN for emacs-devel@gnu.org; Mon, 20 Nov 2023 12:57:20 -0500 Original-Received: from relay1-d.mail.gandi.net ([217.70.183.193]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1r58WM-0000pK-Kp for emacs-devel@gnu.org; Mon, 20 Nov 2023 12:57:20 -0500 Original-Received: by mail.gandi.net (Postfix) with ESMTPSA id 9269E240002; Mon, 20 Nov 2023 17:57:14 +0000 (UTC) In-Reply-To: (brickviking@gmail.com's message of "Mon, 20 Nov 2023 18:55:35 +1300") X-GND-Sasl: juri@linkov.net Received-SPF: pass client-ip=217.70.183.193; envelope-from=juri@linkov.net; helo=relay1-d.mail.gandi.net X-Spam_score_int: -25 X-Spam_score: -2.6 X-Spam_bar: -- X-Spam_report: (-2.6 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.29 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-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Xref: news.gmane.io gmane.emacs.devel:313063 Archived-At: > Just as a complete aside for preventing bash history erasure, I got around > it like this: > > * export HISTCONTROL=ignoreboth # I could also have used erasedups here but > felt this would be unacceptably slow Actually this is not quite off-topic. In Emacs, the corresponding option is 'history-delete-duplicates' that corresponds to 'ignoredups'. But unfortunately still no option corresponding to 'ignorespace'. Instead of using such advice (define-advice add-to-history (:around (ofun history-var newelt &rest args) ignorespace) (unless (string-match-p "\\` " newelt) (apply ofun history-var newelt args))) maybe 'history-delete-duplicates' should support a new value 'ignorespace'? > * export HISTSIZE=30000000 > # Yes, it's huge, but I get history going back years I found that it helps to reduce the size of the shell history by splitting the history file by different file trees using advice: (define-advice shell (:around (ofun &rest args) per-tree-history) (let ((process-environment (copy-sequence process-environment)) (root (locate-dominating-file default-directory ".bash_history"))) (when root (setenv "HISTFILE" (expand-file-name ".bash_history" root))) (apply ofun args))) but no idea how this could be more customizable.