From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from firstgate.proxmox.com (firstgate.proxmox.com [212.224.123.68]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by lists.proxmox.com (Postfix) with ESMTPS id 7B29A61221 for ; Tue, 8 Feb 2022 16:30:39 +0100 (CET) Received: from firstgate.proxmox.com (localhost [127.0.0.1]) by firstgate.proxmox.com (Proxmox) with ESMTP id 6AA4930C81 for ; Tue, 8 Feb 2022 16:30:09 +0100 (CET) Received: from proxmox-new.maurer-it.com (proxmox-new.maurer-it.com [94.136.29.106]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by firstgate.proxmox.com (Proxmox) with ESMTPS id E664E30C78 for ; Tue, 8 Feb 2022 16:30:08 +0100 (CET) Received: from proxmox-new.maurer-it.com (localhost.localdomain [127.0.0.1]) by proxmox-new.maurer-it.com (Proxmox) with ESMTP id B81AC46209 for ; Tue, 8 Feb 2022 16:30:08 +0100 (CET) Message-ID: <23c29e64-bc74-9a8f-7b70-bad0abdb633a@proxmox.com> Date: Tue, 8 Feb 2022 16:30:08 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.5.0 Content-Language: en-US To: Dominik Csapak , Proxmox Backup Server development discussion , Thomas Lamprecht References: <20220207124825.1116194-1-s.sterz@proxmox.com> <10c2b794-7815-30b8-9957-a89acdafcab1@proxmox.com> From: Stefan Sterz In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-SPAM-LEVEL: Spam detection results: 0 AWL 0.000 Adjusted score from AWL reputation of From: address BAYES_00 -1.9 Bayes spam probability is 0 to 1% KAM_DMARC_STATUS 0.01 Test Rule for DKIM or SPF Failure with Strict Alignment NICE_REPLY_A -0.001 Looks like a legit reply (A) SPF_HELO_NONE 0.001 SPF: HELO does not publish an SPF Record SPF_PASS -0.001 SPF: sender matches SPF record T_SCC_BODY_TEXT_LINE -0.01 - Subject: Re: [pbs-devel] [PATCH proxmox-backup 1/2] fix #3853: api: add force option to tape key change-passphrase X-BeenThere: pbs-devel@lists.proxmox.com X-Mailman-Version: 2.1.29 Precedence: list List-Id: Proxmox Backup Server development discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 08 Feb 2022 15:30:39 -0000 On 2/8/22 16:26, Dominik Csapak wrote: > On 2/7/22 17:14, Stefan Sterz wrote: >> On 2/7/22 16:57, Stefan Sterz wrote: >>> On 2/7/22 15:58, Thomas Lamprecht wrote: >>>> On 07.02.22 13:48, Stefan Sterz wrote: > [snip] >>>>> +    // sanity checks for "password xor --force" >>>>> +    if force && password.is_some() { >>>>> +        bail!("password is not allowed when using force") >>>>> +    } >>>>> + >>>>> +    if !force && password.is_none() { >>>>> +        bail!("missing parameter: password") >>>>> +    } >>>> Above two if's could be written slightly shorter while IMO even >>>> improving readability >>>> >>>> match (force, password) { >>>>      (true, Some(_)) => bail!("password is not allowed when using >>>> force"), >>>>      (false, None) => bail!("missing parameter: password"), >>>>      _ => (), // OK >>>> } >>> This does not work, because here password is moved into the match >>> expression. The borrow checker will complain about it being used >>> later on when trying to decrypt the key configuration. You could >>> clone password here, but this solution strikes me as rather >>> "inelegant". > > did not look at the rest of the patch really, but i think thats wrong.. > > couldn't you simply use the reference instead? then the value > will not be moved? > > match (force, &password) { > ... > } > > > ? Yes sorry, using a reference works too. The value is moved when the tuple is constructed is what I meant. This can be avoided by cloning it or as you mentioned using a reference.