From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mp1 ([2001:41d0:2:4a6f::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by ms11 with LMTPS id h56MFCfJ418UUAAA0tVLHw (envelope-from ) for ; Wed, 23 Dec 2020 22:48:07 +0000 Received: from aspmx1.migadu.com ([2001:41d0:2:4a6f::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by mp1 with LMTPS id 8NryDyfJ41/7MAAAbx9fmQ (envelope-from ) for ; Wed, 23 Dec 2020 22:48:07 +0000 Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by aspmx1.migadu.com (Postfix) with ESMTPS id D7EC49404DF for ; Wed, 23 Dec 2020 22:48:06 +0000 (UTC) Received: from localhost ([::1]:60854 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ksCvN-0003QC-SP for larch@yhetil.org; Wed, 23 Dec 2020 17:48:05 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:34964) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1ksCuc-0003Lt-17 for guix-devel@gnu.org; Wed, 23 Dec 2020 17:47:18 -0500 Received: from mout.web.de ([212.227.15.14]:41093) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1ksCuZ-0005cg-Uw for guix-devel@gnu.org; Wed, 23 Dec 2020 17:47:17 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=web.de; s=dbaedf251592; t=1608763633; bh=MepNB/2eAXsmX+rqoBq6yHL3neVMuDDMlnnDJ3aWao8=; h=X-UI-Sender-Class:Subject:To:References:From:Date:In-Reply-To; b=fsxnDoOBQ3mqaFkuDHKH/8STsMgthOBvaHucVw6KCsL0gjor40S1wP/N7QpDs3LsU 5xHESlzIDlSSBhz2NQmBwPNVoI+x9EAAUpLVhxLfO+28cACO10SEiwZ8LoXfVH+C3Z wP9CMn8iRkafXKP9ydLvR/KRukfN7eJ5n0IcmOYQ= X-UI-Sender-Class: c548c8c5-30a9-4db5-a2e7-cb6cb037b8f9 Received: from [192.168.178.74] ([5.146.192.224]) by smtp.web.de (mrweb003 [213.165.67.108]) with ESMTPSA (Nemesis) id 0LopdT-1kOeqp3v7T-00gouy for ; Wed, 23 Dec 2020 23:47:12 +0100 Subject: Re: Identical files across subsequent package revisions To: guix-devel@gnu.org References: <87wnx9wlea.fsf@gnu.org> <9851ca1f-ae56-66f3-912c-55db3f053c80@gmail.com> <87im8si3cd.fsf@netris.org> From: Jonathan Brielmaier Message-ID: <53f94254-e398-4b95-5393-52b619261ec7@web.de> Date: Wed, 23 Dec 2020 23:47:12 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Icedove/78.6.0 MIME-Version: 1.0 In-Reply-To: <87im8si3cd.fsf@netris.org> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-GB Content-Transfer-Encoding: quoted-printable X-Provags-ID: V03:K1:yxEI0QH7xS9AWe3AY7GoOpNOGVviukHb7fmL5SalbJQsyhQ9D8U JUOCt5hz1mekVXBE0WZXnvQu7p6dareFaUqaK5KOKH+HFv8K/LzlZos47+4VShxhkaFTGBp P0+6Lvmw6pyyOXVJHC2XO7KwOgSJWyhz3jFgWafARpR+SBFPPin8Y0+IgavIesqToQnp818 xKiF+/6TNIq5mAEHQm/Nw== X-UI-Out-Filterresults: notjunk:1;V03:K0:hfuah/Hv8RY=:fFxwKzpGGxRI3mFrM7POzn gdoBklocrSp0+HzFnBl1Ja0FZBksfJYXnO5FuBU89cENU0+tLOP92BmV3YcsYkOzBZK9+xX7v qQnkIf4oV5rpQKli8dHvvLuxVmHTm3lBPUPHvlC+Xqz+pgTJ/orNjG6r6TB1coKxgxyYcewsP FkIWuy7rOuanfFuwMPLxpzdcILKhFN22jfPj+ut9CGWck+Tbs8dT4zDvoYKUMkFuDokGdb/OU 5A5Z9H5gSefBGQR2VobIz9kugEYNzy2bi/+cu7JBykxE7Pr6YPzUwZqrixNuLdJFVxajTac13 e1r+nb3knQZX5sjRbGMrlRkvv6USesA4U3fjH030KXr8gSUFilD4OaNhvfCNitEGRCRVnIlKX GdfygLX6yPMe5QCqijJX5cthGiQqGOgln52aoo7TDslk7oERxvEAXJ8rWbV7si+VaKfwFrTiY uPI/mCj2FvwqvGy8i7eLo7Vn27sG4PGEsNe0lApjU4cmDhTTjpyxrIDOh1AZWCPDIiuhhViGz VMvJ61dSLo/sneqMI34jAzlFlhKnh6EYdwKtgI02apHrrhX2hSrQ6pJZ/aTg8lwxY9U7f53Rk v+VjSNVXqzFq6T8HPawPo8A3TPFbEA1BAVpuTpOxBfCb0qNk0VQuMCPSlZkr+Aq6k7k7ifAda F5LGWjbs4lkmXYokypt9QT+3rpv3wNDjQMFEiu1CSdIKdonBoUSr1sHBRjlWCB/hfj8yAS+7q 8HeQb7ZI8n11GpHDi+p8c3fEK61u4UtoqhdnGYkHc4KSXNtg6t3DXH2Y0W7d8yn3Y/3UfqcFg UnLH0ZGiKq1rm/nPOcH18GsaiBUj6q1dfDZtAAVmqzqhVt7juQf48ut+88flUUdsznpw15Iw9 Ie6aSevSPu3mOnNe4nhuxDR442UUQ4RESflTM/wtI= Received-SPF: pass client-ip=212.227.15.14; envelope-from=jonathan.brielmaier@web.de; helo=mout.web.de X-Spam_score_int: -52 X-Spam_score: -5.3 X-Spam_bar: ----- X-Spam_report: (-5.3 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, NICE_REPLY_A=-2.521, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: guix-devel@gnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: "Development of GNU Guix and the GNU System distribution." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: guix-devel-bounces+larch=yhetil.org@gnu.org Sender: "Guix-devel" X-Migadu-Flow: FLOW_IN X-Migadu-Spam-Score: -3.03 Authentication-Results: aspmx1.migadu.com; dkim=pass header.d=web.de header.s=dbaedf251592 header.b=fsxnDoOB; dmarc=pass (policy=none) header.from=web.de; spf=pass (aspmx1.migadu.com: domain of guix-devel-bounces@gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=guix-devel-bounces@gnu.org X-Migadu-Queue-Id: D7EC49404DF X-Spam-Score: -3.03 X-Migadu-Scanner: scn0.migadu.com X-TUID: zqJqCrG3cBTZ On 23.12.20 23:06, Mark H Weaver wrote: > Hi Taylan, > > Taylan Kammer writes: >> My second thought: it's surprising that IceCat supposedly changes so >> much between releases. I suppose the reason is that this analysis is o= n >> a per-file basis, and IceCat is mostly a massive binary. > > FYI, here's the reason that IceCat is unusual among the projects sampled > in Ludovic's analysis: the large collection of JavaScript source files > and other auxiliary files, which are mostly unchanged from one release > to the next, are bundled into a single zip file in lib/icecat/omni.ja. And even more most of the changed files differ only via the different hash in the output path. So the actual diff is a few hundred lines of almost the same -> should get compressed very good...