From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <g.goller@proxmox.com>
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 ADABDB3A1A
 for <pbs-devel@lists.proxmox.com>; Wed, 29 Nov 2023 13:50:02 +0100 (CET)
Received: from firstgate.proxmox.com (localhost [127.0.0.1])
 by firstgate.proxmox.com (Proxmox) with ESMTP id 85F796CE5
 for <pbs-devel@lists.proxmox.com>; Wed, 29 Nov 2023 13:50:02 +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
 for <pbs-devel@lists.proxmox.com>; Wed, 29 Nov 2023 13:50:01 +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 4909540A70
 for <pbs-devel@lists.proxmox.com>; Wed, 29 Nov 2023 13:50:01 +0100 (CET)
Message-ID: <860129ad-64b5-44b2-bb05-bf6f6fa3272a@proxmox.com>
Date: Wed, 29 Nov 2023 13:50:00 +0100
MIME-Version: 1.0
User-Agent: Mozilla Thunderbird
Content-Language: en-US
To: Wolfgang Bumiller <w.bumiller@proxmox.com>
Cc: pbs-devel@lists.proxmox.com
References: <20231129090746.38798-1-g.goller@proxmox.com>
 <20231129090746.38798-5-g.goller@proxmox.com>
 <e7zx65tjgetshodlko2rfc5yfsbnj2glhtcom3gqvyx3jacuck@xhu5a4jcge7w>
From: Gabriel Goller <g.goller@proxmox.com>
In-Reply-To: <e7zx65tjgetshodlko2rfc5yfsbnj2glhtcom3gqvyx3jacuck@xhu5a4jcge7w>
Content-Type: text/plain; charset=UTF-8; format=flowed
Content-Transfer-Encoding: 7bit
X-SPAM-LEVEL: Spam detection results:  0
 AWL -0.186 Adjusted score from AWL reputation of From: address
 BAYES_00                 -1.9 Bayes spam probability is 0 to 1%
 DMARC_MISSING             0.1 Missing DMARC policy
 KAM_DMARC_STATUS 0.01 Test Rule for DKIM or SPF Failure with Strict Alignment
 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 v4 proxmox-backup 4/5] node: status:
 declutter kernel-version
X-BeenThere: pbs-devel@lists.proxmox.com
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: Proxmox Backup Server development discussion
 <pbs-devel.lists.proxmox.com>
List-Unsubscribe: <https://lists.proxmox.com/cgi-bin/mailman/options/pbs-devel>, 
 <mailto:pbs-devel-request@lists.proxmox.com?subject=unsubscribe>
List-Archive: <http://lists.proxmox.com/pipermail/pbs-devel/>
List-Post: <mailto:pbs-devel@lists.proxmox.com>
List-Help: <mailto:pbs-devel-request@lists.proxmox.com?subject=help>
List-Subscribe: <https://lists.proxmox.com/cgi-bin/mailman/listinfo/pbs-devel>, 
 <mailto:pbs-devel-request@lists.proxmox.com?subject=subscribe>
X-List-Received-Date: Wed, 29 Nov 2023 12:50:02 -0000

On 11/29/23 11:23, Wolfgang Bumiller wrote:
> On Wed, Nov 29, 2023 at 10:07:45AM +0100, Gabriel Goller wrote:
>>   
>> +#[api]
>> +#[derive(Serialize, Deserialize, Default)]
>> +#[serde(rename_all = "lowercase")]
>> +/// The current kernel version (output of `uname`)
>> +pub struct KernelVersionInformation {
>> +    /// The systemname/nodename
>> +    pub sysname: String,
>> +    /// The kernel release number
>> +    pub release: String,
>> +    /// The kernel version
>> +    pub version: String,
>> +    /// The machine architecture
>> +    pub machine: String,
>> +}
>> +
>> +impl KernelVersionInformation {
>> +    pub fn from_ostr(sysname: &OsStr, release: &OsStr, version: &OsStr, machine: &OsStr) -> Self {
> from_ostr is a bit of a weird name for a public method taking 4
> parameters.
>
> consider a `From<&UtsName>` implementation.
Hmm I was under the impression that we don't want to pull in any more 
crates into `pbs-api-types`...
Another option I had was implement From<[&OsStr; 4] on 
KernelVersionInformation?
>> +        KernelVersionInformation {
>> +            sysname: sysname
>> +                .to_os_string()
>> +                .into_string()
>> +                .unwrap_or("".to_string()),
> .unwrap_or_default(), also, whenver you think "".to_string(), type
> String::new() instead ;-)
>
> also, you first convert to an owned string - this always works, and then
> do the fallible `into_string()`, so even if it's not a valid string you
> clone and discard, instead, do:
>      sysname
>          .to_str()
>          .map(String::from)
>          .unwrap_or_default()
>
> this way there's no string copying if it's not valid utf-8 becausee that
> is checked first
>
> same for the cases below
Ohh, thanks for the heads up!