From mboxrd@z Thu Jan 1 00:00:00 1970 X-GM-THRID: 6661144938075389952 X-Received: by 2002:a1c:7c09:: with SMTP id x9mr1048439wmc.19.1551092905120; Mon, 25 Feb 2019 03:08:25 -0800 (PST) X-BeenThere: isar-users@googlegroups.com Received: by 2002:adf:de8c:: with SMTP id w12ls1087682wrl.16.gmail; Mon, 25 Feb 2019 03:08:24 -0800 (PST) X-Google-Smtp-Source: AHgI3IYCHaa4urNfkEa/j0TkHFHyIJGzo+FoCEX8lmn1FuTHyYkQ8NPpROY4EM5PVSxbuMczgsls X-Received: by 2002:adf:a390:: with SMTP id l16mr851061wrb.11.1551092904595; Mon, 25 Feb 2019 03:08:24 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1551092904; cv=none; d=google.com; s=arc-20160816; b=J8Bmmf/aa19MUntQMNVoFa3L50qBuaJvEofFRJ+gBMCKXMN4O3uz1TqrzDK1YoA3jK 1PYsMfGytlOFCJ+VcSoFNrCfYBpcEoM9sVB52YJz0IpyEdLuAP+b1W0OxWocrBeP3I8k 3HEMsQfhnUJZ0DkgmQPiCc2Dfz4mUvdZybGj3suZEuzayYZuSAENpugLDj4ZqpqijlrV rNFZ5QM6xClz65RS8Rk+OFSzB8ipdTj3VFXHmwBa8Zt7Gp2mI9ZnXketWk9YxaXNNOr7 qTx/xMy2A/OzMg3jHx+I6D4g0DDVqGN5Y8aFxI2LKHLhTjfFZwLpLmWr8xxOxK4VSTkg jmAA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=content-transfer-encoding:content-language:in-reply-to:mime-version :user-agent:date:message-id:from:references:cc:to:subject; bh=ugJX1MZssjhEXvD/pTkg3ksurVAMUb9r25Pvp90IThE=; b=O1pSSF/I3b5KLzKEd9bFei8NBsimnDhKAeLui1IxFkpnuZqmxglFhPRaP8W+J105CD QzTZboDwkPaMYkAufo/Udjr3OvmL1B68uKvM4eAgbfPFxzbFQvk5Bpy5q0VEIS7oCqLF dJatjjbEKpwxlrssuTa4jILxs/uFqkds0vFS1PFszj/UtnHS9GQsHi08btFjdzIVqkkw t5dkV546y/RDpdEK2jL0Tb0RMXnYfnk8ON8WIfeCjzt9Fpz8HIUKR+rltDEzxCqLqwqM D3gBNjCFTp3m7i7LCc6GwhVGP8y7xZXKDbHpPh2dvrJ3hQnIERood53rv8L/Yv1VA/JR a2Ww== ARC-Authentication-Results: i=1; gmr-mx.google.com; spf=pass (google.com: domain of jan.kiszka@siemens.com designates 192.35.17.2 as permitted sender) smtp.mailfrom=jan.kiszka@siemens.com Return-Path: Received: from thoth.sbs.de (thoth.sbs.de. [192.35.17.2]) by gmr-mx.google.com with ESMTPS id r15si397303wmc.4.2019.02.25.03.08.24 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 25 Feb 2019 03:08:24 -0800 (PST) Received-SPF: pass (google.com: domain of jan.kiszka@siemens.com designates 192.35.17.2 as permitted sender) client-ip=192.35.17.2; Authentication-Results: gmr-mx.google.com; spf=pass (google.com: domain of jan.kiszka@siemens.com designates 192.35.17.2 as permitted sender) smtp.mailfrom=jan.kiszka@siemens.com Received: from mail2.sbs.de (mail2.sbs.de [192.129.41.66]) by thoth.sbs.de (8.15.2/8.15.2) with ESMTPS id x1PB8ODI011177 (version=TLSv1.2 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK) for ; Mon, 25 Feb 2019 12:08:24 +0100 Received: from [139.25.68.37] (md1q0hnc.ad001.siemens.net [139.25.68.37] (may be forged)) by mail2.sbs.de (8.15.2/8.15.2) with ESMTP id x1PB8NSe001815; Mon, 25 Feb 2019 12:08:23 +0100 Subject: Re: [PATCH] buildchroot: Allow downgrades when installing packages To: Henning Schild Cc: isar-users References: <88c264fd-db0f-55cc-ce5e-f19c11a45320@web.de> <20190225103935.489a466e@md1za8fc.ad001.siemens.net> <65117e48-f372-526a-08e2-35aef444c884@siemens.com> <20190225111530.36c1b655@md1za8fc.ad001.siemens.net> From: Jan Kiszka Message-ID: Date: Mon, 25 Feb 2019 12:08:23 +0100 User-Agent: Mozilla/5.0 (X11; U; Linux i686 (x86_64); de; rv:1.8.1.12) Gecko/20080226 SUSE/2.0.0.12-1.1 Thunderbird/2.0.0.12 Mnenhy/0.7.5.666 MIME-Version: 1.0 In-Reply-To: <20190225111530.36c1b655@md1za8fc.ad001.siemens.net> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit X-TUID: PiO4oWDGDHR3 On 25.02.19 11:15, Henning Schild wrote: > Am Mon, 25 Feb 2019 10:57:33 +0100 > schrieb Jan Kiszka : > >> On 25.02.19 10:39, [ext] Henning Schild wrote: >>> Am Sat, 23 Feb 2019 11:44:21 +0100 >>> schrieb Jan Kiszka : >>> >>>> From: Jan Kiszka >>>> >>>> This can happen when changing the recipe of a self-built package, >>>> and that already when going from v1.0-rc3 to v1.0. >>> >>> Seems pretty risky. If the only motivation is a local package, i >>> would argue your layer has a bug because it is going "up and down". >>> If it >> >> Look at the example I cited: It was an upgrade. > > In that case your version was wrong. > > ... The format is: [epoch:]upstream_version[-debian_revision]. > > ... The upstream_version may contain only alphanumerics [6] and the > characters . + - ~ (full stop, plus, hyphen, tilde) and should start > with a digit. If there is no debian_revision then hyphens are not > allowed. > > https://www.debian.org/doc/debian-policy/ch-controlfields.html#s-f-version > > So it should have been v1.0-rc3-deb0, or v1.0+rc3 ... > It is a bug in your layer not in Isar. Removing -rcX from a version string is lexically a downgrade, logically not. I'm not that sure if you can compensate this. Anyway, a real downgrade is a valid development scenario as well for our isar-apt. Jan -- Siemens AG, Corporate Technology, CT RDA IOT SES-DE Corporate Competence Center Embedded Linux