From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Dmitry Gutov Newsgroups: gmane.emacs.devel Subject: Re: Generation of tags for the current project on the fly Date: Fri, 9 Feb 2018 03:22:40 +0300 Message-ID: <954ed2cb-b266-e2a7-20ef-424372e042de@yandex.ru> References: <4559858d-eb32-d071-fdad-e51430700260@yandex.ru> <8360863o6a.fsf@gnu.org> <27a58fb2-d2ee-e5fc-158d-ec41be401987@yandex.ru> <83y3l0za1f.fsf@gnu.org> <259c557d-e3a3-c01b-9ba3-30df09d247ea@yandex.ru> <83inc3znpu.fsf@gnu.org> <98f4f0c3-6815-bf86-fa23-1a330c60b9f3@yandex.ru> <87lggwkuth.fsf@tromey.com> <877esgqdhk.fsf@tromey.com> <1fad0c79-cd65-df83-9dcc-2650fed4dad1@yandex.ru> <76696ae3-318c-bb83-bbf9-a4f8680114ba@yandex.ru> <87lggsnkwc.fsf@tromey.com> <854cd0fd-5e4f-771a-0f58-b94373a2f98c@yandex.ru> <878tcgaqd9.fsf@tromey.com> <22dbecf2-4153-9410-722f-e98e48481302@yandex.ru> <83372f8ix9.fsf@gnu.org> <651fd4fb-bd0b-1cf5-62e0-aa8abe104817@yandex.ru> <83eflx7vw2.fsf@gnu.org> <2acd2301-771d-1749-36b7-a08fa6d668e8@yandex.ru> <83d11h7a54.fsf@gnu.org> <2d15ac14-586f-b997-1cce-0e8a6f998584@yandex.ru> NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit X-Trace: blaine.gmane.org 1518135696 10792 195.159.176.226 (9 Feb 2018 00:21:36 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Fri, 9 Feb 2018 00:21:36 +0000 (UTC) User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:58.0) Gecko/20100101 Thunderbird/58.0 Cc: Eli Zaretskii , tom@tromey.com, emacs-devel@gnu.org To: John Yates Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Fri Feb 09 01:21:31 2018 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by blaine.gmane.org with esmtp (Exim 4.84_2) (envelope-from ) id 1ejwRV-0002SJ-Ui for ged-emacs-devel@m.gmane.org; Fri, 09 Feb 2018 01:21:30 +0100 Original-Received: from localhost ([::1]:40100 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ejwTX-0008GB-4a for ged-emacs-devel@m.gmane.org; Thu, 08 Feb 2018 19:23:35 -0500 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:40773) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ejwSo-0008Fh-0x for emacs-devel@gnu.org; Thu, 08 Feb 2018 19:22:51 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ejwSj-0003jG-5Q for emacs-devel@gnu.org; Thu, 08 Feb 2018 19:22:50 -0500 Original-Received: from mail-lf0-x22a.google.com ([2a00:1450:4010:c07::22a]:38960) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1ejwSi-0003il-R7; Thu, 08 Feb 2018 19:22:45 -0500 Original-Received: by mail-lf0-x22a.google.com with SMTP id h78so1723495lfg.6; Thu, 08 Feb 2018 16:22:44 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=sender:subject:to:cc:references:from:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=TIoOGTlj7CuKJVEXQxaCvTAeYXCv5EAT4wfjRA1SFHg=; b=TTbke2EOkYLIm8kLF80nw4rDcU5ixFRxCXOv7jdmif+sojgUw6KsjdKerz58bCRRJz GXCf5rfUbW7gUccyU7V76AdwpqTqHYG4TbTiY9dpBHRD86TLDGlf6ap39gTEJogIHpj3 pQ1Do/F6FtoOM1SI/0C43q3Y37XYFFzd2YTjijFZh1sW4xLXvzTvgXN3PsCciniuRjlX ESnevN0HpsZO+hr9TkxiraGIpbIQB5u3ATmP18IX5bekAh9gLHx2FGSw8OZ5VUCUNT0I 164IlLoSrwXJc0Oy3oAFX04Mq6KBp4oKs+XcSg5FCFpgmaUIFvrr6pxaeA0a8XcT7mKs M3RQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:subject:to:cc:references:from:message-id :date:user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=TIoOGTlj7CuKJVEXQxaCvTAeYXCv5EAT4wfjRA1SFHg=; b=oSXZ1tXOI6RGWuctV8bW6dDgIfNTwMwsjikbNn5wKsmyaeTM2o6OPjLRLdKROejDdR 01MPkbqD1QanWkyNm9uUGmpgMrw7GpalJ312F3PtHxsGxc3ji+4lZnMR4Jg9IyHBwo7a y1BExLhUOgu52MkvDo8sNXs08n76h1Ra81wAxNE6S8qzV7SihKxdRUeGWyReW5siSYug i9fZkyiJSgohrZl8qiwPWiSynCKFlqgy14iuYcP+YlLx/9mkD0DqV6JXqIU02eH1PKt5 Bwd6ofBDZPMSmdHvUGpDhUSD0IMUcLeIclSqUeA0wtS0HJgGwmdMPvjdk9c+B/K1c7PZ zf4Q== X-Gm-Message-State: APf1xPAqaQLPHH1e7/9R61gp9C6gp8YRKRzkPTbkADlRXuzRRS4iGvmy PFHivdOYqfb+Tj1dnQIOXHhk24g9 X-Google-Smtp-Source: AH8x224RB4Kv4ARYzIxZTBsCcpON9eFMHd/wZiIsVxAE61Q9WmszJAStI6WcZtOgyzZbN3ucGHOK4g== X-Received: by 10.46.62.6 with SMTP id l6mr585216lja.57.1518135762856; Thu, 08 Feb 2018 16:22:42 -0800 (PST) Original-Received: from [192.168.1.190] ([178.252.127.239]) by smtp.googlemail.com with ESMTPSA id c123sm213707lfc.94.2018.02.08.16.22.40 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 08 Feb 2018 16:22:41 -0800 (PST) In-Reply-To: Content-Language: en-US X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2a00:1450:4010:c07::22a X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.21 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.org@gnu.org Original-Sender: "Emacs-devel" Xref: news.gmane.org gmane.emacs.devel:222633 Archived-At: On 2/8/18 23:31, John Yates wrote: > Git seems to be able to compute new/modified/dropped with quite > tolerable efficiency even fir large projects. Are there lessons to be > learned there? One way to interpret that is maybe checking the presence of even a large number of files is a fast enough operation. Would you like to give it a test? Alternatively, Git uses some smart caching somewhere.