From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Stefan Monnier Newsgroups: gmane.emacs.devel Subject: Re: master daea9b3 1/2: Read mailcaps again only when necessary Date: Tue, 02 Nov 2021 09:51:58 -0400 Message-ID: References: <20211101135344.25800.81476@vcs0.savannah.gnu.org> <20211101135346.2EBEB20B72@vcs0.savannah.gnu.org> <87tugvrerf.fsf@gnus.org> <83sfwflrox.fsf@gnu.org> <87fssfrdul.fsf@gnus.org> <83o873lrg2.fsf@gnu.org> <8735ofrdhz.fsf@gnus.org> <83lf27lp5p.fsf@gnu.org> <83h7cvln71.fsf@gnu.org> <838ry6lnuz.fsf@gnu.org> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="818"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) Cc: larsi@gnus.org, gregory@heytings.org, emacs-devel@gnu.org To: Eli Zaretskii Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Tue Nov 02 15:29:27 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 1mhun1-000AcU-0Y for ged-emacs-devel@m.gmane-mx.org; Tue, 02 Nov 2021 15:29:27 +0100 Original-Received: from localhost ([::1]:56130 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mhun0-0004we-1u for ged-emacs-devel@m.gmane-mx.org; Tue, 02 Nov 2021 10:29:26 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:36684) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mhuCv-00004q-N1 for emacs-devel@gnu.org; Tue, 02 Nov 2021 09:52:09 -0400 Original-Received: from mailscanner.iro.umontreal.ca ([132.204.25.50]:39751) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mhuCr-0008Re-FL; Tue, 02 Nov 2021 09:52:07 -0400 Original-Received: from pmg1.iro.umontreal.ca (localhost.localdomain [127.0.0.1]) by pmg1.iro.umontreal.ca (Proxmox) with ESMTP id 29A031003B4; Tue, 2 Nov 2021 09:52:02 -0400 (EDT) Original-Received: from mail01.iro.umontreal.ca (unknown [172.31.2.1]) by pmg1.iro.umontreal.ca (Proxmox) with ESMTP id 5739C10028A; Tue, 2 Nov 2021 09:52:00 -0400 (EDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=iro.umontreal.ca; s=mail; t=1635861120; bh=YegWbbv5A+otthObrmUX4OJf3h21PkK4acyg1PmemYI=; h=From:To:Cc:Subject:References:Date:In-Reply-To:From; b=AjAoXnnbH9321m2Oae2r+zXLdlpsENPdoNDvlKISoIkvG8Zn7eYPa1yzBesCqUpmY 8iAxchRLHFQuFvc2WcQTr3LoWzUFN0zu/9FsaRuId72YMivNuWu23BV+s7JlgVMEB3 c3tWnBvpIKFA5QWhOUJ5OAX6kU5iLC0af0YxzEQGUcySqEuSKdV7UQcr1kPOMIW+2z kRae1M6uN6YYK19ZJXJmP9A2KLSbFAEcEjKjv8pPXZnQzeltsYXVKpknnLIcfcdIY1 fQeOx6kDdVtm6UFON8gcPoxXTNCPPmV2hKEIfXU5nCKdoFgWvy9CjfHbIB5s3TUR3E V6xGFBuIS45Aw== Original-Received: from ceviche (modemcable063.211-21-96.mc.videotron.ca [96.21.211.63]) by mail01.iro.umontreal.ca (Postfix) with ESMTPSA id 30642120312; Tue, 2 Nov 2021 09:52:00 -0400 (EDT) In-Reply-To: <838ry6lnuz.fsf@gnu.org> (Eli Zaretskii's message of "Tue, 02 Nov 2021 14:54:12 +0200") Received-SPF: pass client-ip=132.204.25.50; envelope-from=monnier@iro.umontreal.ca; helo=mailscanner.iro.umontreal.ca X-Spam_score_int: -42 X-Spam_score: -4.3 X-Spam_bar: ---- X-Spam_report: (-4.3 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, RCVD_IN_DNSWL_MED=-2.3, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 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" Xref: news.gmane.io gmane.emacs.devel:278480 Archived-At: >> From: Stefan Monnier >> Cc: larsi@gnus.org, gregory@heytings.org, emacs-devel@gnu.org >> Date: Mon, 01 Nov 2021 17:07:12 -0400 >> >> But I don't see what's the benefit of calling `file-truename`: I know it >> makes it slower and introduces an (unlikely) broken corner case, but >> what's the upside? > > It will avoid several false responses, with symlinks and on > filesystems with special "features", like case-insensitivity. I can see cases where using `file-truename` will return slightly less pessimistic results, e.g. if we test "FooBar" after having tested "foobar" it may avoid deciding it's changed even tho it wasn't. But that seems like a very minor advantage (such pessimistic results are largely unavoidable, so code should be prepared to work correctly in their presence anyway). Stefan