Date: Tue, 15 Oct 2019 09:34:34 -0700 From: Cy Schubert <Cy.Schubert@cschubert.com> To: freebsd-hackers@freebsd.org, Mark Johnston <markj@freebsd.org>, Gordon Bergling <gbergling@gmail.com> Subject: Re: uname -a default options Message-ID: <B50FCD18-08E2-4623-A7B3-F84E387C8090@cschubert.com> In-Reply-To: <20191015162600.GE26396@raichu> References: <F49E4A66-9874-4126-AEEF-5F32FD662668@gmail.com> <20191015162600.GE26396@raichu>
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On October 15, 2019 9:26:00 AM PDT, Mark Johnston <markj@freebsd=2Eorg> wro= te: >On Tue, Aug 13, 2019 at 05:41:26PM +0200, Gordon Bergling wrote: >> Hello List, >>=20 >> "uname -a" is currently mapping the -a option to =E2=80=9E-mnrsv=E2=80= =9C, which >results in something similar like >>=20 >> $ uname -a >> FreeBSD lion=2E0xfce3=2Enet 12=2E0-STABLE FreeBSD 12=2E0-STABLE r350835 >GENERIC amd64 >>=20 >> What would you think about reducing the option mapping for =E2=80=9E-a= =E2=80=9C to >=E2=80=9E-vmn=E2=80=9C , which would result in a less repetitive version = string like >the one below=2E >>=20 >> $ uname -vmn >> lion=2E0xfce3=2Enet FreeBSD 12=2E0-STABLE r350835 GENERIC amd64 >>=20 >> Adapting this would be trivial, but before I hack something together, >I would like to get some feedback if such a change would be welcomed? > >I'm not sure about the history which led to the current behaviour of >-a, >but the unfortunately reality is that changes like the one you propose >will likely break programs that process uname -a output=2E Of course, >such programs should likely be using more specialized uname options >instead, but the current behaviour of -a has been in place for >something >like 25 years, so it's quite likely that something depends on it=2E In >these situations I prefer to maintain backwards compatibility=2E >_______________________________________________ >freebsd-hackers@freebsd=2Eorg mailing list >https://lists=2Efreebsd=2Eorg/mailman/listinfo/freebsd-hackers >To unsubscribe, send any mail to >"freebsd-hackers-unsubscribe@freebsd=2Eorg" How about a $UNAME_A environment variable? The downside: people will submi= t PRs taking time from legitimate development=2E --=20 Pardon the typos and autocorrect, small keyboard in use=2E=20 Cy Schubert <Cy=2ESchubert@cschubert=2Ecom> FreeBSD UNIX: <cy@FreeBSD=2Eorg> Web: https://www=2EFreeBSD=2Eorg The need of the many outweighs the greed of the few=2E Sent from my Android device with K-9 Mail=2E Please excuse my brevity=2E From owner-freebsd-hackers@freebsd.org Tue Oct 15 16:48:09 2019 Return-Path: <owner-freebsd-hackers@freebsd.org> Delivered-To: freebsd-hackers@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id CF66214DBD2 for <freebsd-hackers@mailman.nyi.freebsd.org>; Tue, 15 Oct 2019 16:48:09 +0000 (UTC) (envelope-from markjdb@gmail.com) Received: from mail-qk1-x742.google.com (mail-qk1-x742.google.com [IPv6:2607:f8b0:4864:20::742]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) server-signature RSA-PSS (4096 bits) client-signature RSA-PSS (2048 bits) client-digest SHA256) (Client CN "smtp.gmail.com", Issuer "GTS CA 1O1" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 46t1Zc4Vf6z4VsB for <freebsd-hackers@freebsd.org>; Tue, 15 Oct 2019 16:48:08 +0000 (UTC) (envelope-from markjdb@gmail.com) Received: by mail-qk1-x742.google.com with SMTP id u22so19779209qkk.11 for <freebsd-hackers@freebsd.org>; Tue, 15 Oct 2019 09:48:08 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=sender:date:from:to:cc:subject:message-id:references:mime-version :content-disposition:content-transfer-encoding:in-reply-to :user-agent; bh=4bC0HELRv7L2ufEtOWOItZjtkiJoG4ZYJ15fyLmNNTM=; b=fbIsK/TJDdHokrY5mSkPK1o3ps+MS7V/ShTYwiqRZEeP00xcNoPgXkYMAQNbHAdTVG XMEYqgMonmdNRtd5oSOLC9Jf5JO0aFsvL6Rla/LyJOAzKzhEMioAZGuKtT2ltjoBwrwb 9ak1bOWIkK/cWluN50MSE+ysXZFDzhzGoWHPxjbG7BXpxelTOx0sxcb4UwBGIHra3hbA amw2tLFjYQE6FU0f4OgSymz1e8C2kWdIz50iYe7vQiHNkQsb3ewpLJkVGJn6qc84bJAZ zu2y4B2DG0QMjBfXFIuQrCtkNHR10GzeadIx9sUJ4Ir0COeUDmCvyxHPiJiX5oUYikAV AZtg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:date:from:to:cc:subject:message-id :references:mime-version:content-disposition :content-transfer-encoding:in-reply-to:user-agent; bh=4bC0HELRv7L2ufEtOWOItZjtkiJoG4ZYJ15fyLmNNTM=; b=lH+i0um7ZbIQOgu2AN1Hm0zeDqKPPzkfya/rKqYGqeJNR718Cs9wtm0D/HfDzZqWz6 bi3Dd8+OwPqDz1WU9oEImffvGJO+eX7vJRGtCQDv9Us6P8SEsoN91Y2JeoXu+Jd3bagT EOPd9TkK9bjcZTdxliqsza/lRbozCTKK+WkL3NcAUEuQxbSqYMl+5WdGxqrAcCyhjyOL dyi22Lr7+Eu6bl6zgJufnvsDmN98kViyN1QzXbg0LL1Okl1FjsuYeivIPsArt1s/CzAK vH99soZtwC/0/t1ej6librWjdr4FylhaY7Dbr1vlIVr4MgkqZvRC+u+QTk/oE69EITEG 6yTw== X-Gm-Message-State: APjAAAUHQDuQzI2T3jASfJ7wwXvkAuJ1OV4U6G33B1vgfM0tcpLqm9Gi V6UD25D5KlX57A3zK4AxB31oKphy X-Google-Smtp-Source: APXvYqzf4LtrHwa5yh4OnMM2ojhNOOZesl14jgzhaL+lw+YRIoSs0dda1uobdn14I2RNdngIIHplBw== X-Received: by 2002:a05:620a:2f3:: with SMTP id a19mr36760923qko.501.1571158087368; Tue, 15 Oct 2019 09:48:07 -0700 (PDT) Received: from raichu (toroon0560w-lp130-05-69-158-183-252.dsl.bell.ca. [69.158.183.252]) by smtp.gmail.com with ESMTPSA id w73sm10498871qkb.111.2019.10.15.09.48.05 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 15 Oct 2019 09:48:06 -0700 (PDT) Sender: Mark Johnston <markjdb@gmail.com> Date: Tue, 15 Oct 2019 12:48:04 -0400 From: Mark Johnston <markj@freebsd.org> To: Gordon Bergling <gbergling@gmail.com> Cc: freebsd-hackers@freebsd.org Subject: Re: uname -a default options Message-ID: <20191015164804.GG26396@raichu> References: <F49E4A66-9874-4126-AEEF-5F32FD662668@gmail.com> <20191015162600.GE26396@raichu> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20191015162600.GE26396@raichu> User-Agent: Mutt/1.12.2 (2019-09-21) X-Rspamd-Queue-Id: 46t1Zc4Vf6z4VsB X-Spamd-Bar: -- Authentication-Results: mx1.freebsd.org; dkim=pass header.d=gmail.com header.s=20161025 header.b=fbIsK/TJ; dmarc=none; spf=pass (mx1.freebsd.org: domain of markjdb@gmail.com designates 2607:f8b0:4864:20::742 as permitted sender) smtp.mailfrom=markjdb@gmail.com X-Spamd-Result: default: False [-2.01 / 15.00]; ARC_NA(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; R_DKIM_ALLOW(-0.20)[gmail.com:s=20161025]; NEURAL_HAM_MEDIUM(-1.00)[-0.996,0]; FROM_HAS_DN(0.00)[]; TO_DN_SOME(0.00)[]; R_SPF_ALLOW(-0.20)[+ip6:2607:f8b0:4000::/36]; NEURAL_HAM_LONG(-1.00)[-1.000,0]; MIME_GOOD(-0.10)[text/plain]; PREVIOUSLY_DELIVERED(0.00)[freebsd-hackers@freebsd.org]; DMARC_NA(0.00)[freebsd.org]; RCVD_COUNT_THREE(0.00)[3]; MIME_TRACE(0.00)[0:+]; TO_MATCH_ENVRCPT_SOME(0.00)[]; DKIM_TRACE(0.00)[gmail.com:+]; RCPT_COUNT_TWO(0.00)[2]; RCVD_IN_DNSWL_NONE(0.00)[2.4.7.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.0.4.6.8.4.0.b.8.f.7.0.6.2.list.dnswl.org : 127.0.5.0]; IP_SCORE(-0.31)[ip: (3.08), ipnet: 2607:f8b0::/32(-2.48), asn: 15169(-2.10), country: US(-0.05)]; FORGED_SENDER(0.30)[markj@freebsd.org,markjdb@gmail.com]; FREEMAIL_TO(0.00)[gmail.com]; MID_RHS_NOT_FQDN(0.50)[]; FREEMAIL_ENVFROM(0.00)[gmail.com]; ASN(0.00)[asn:15169, ipnet:2607:f8b0::/32, country:US]; FROM_NEQ_ENVFROM(0.00)[markj@freebsd.org,markjdb@gmail.com]; RCVD_TLS_ALL(0.00)[] X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Technical Discussions relating to FreeBSD <freebsd-hackers.freebsd.org> List-Unsubscribe: <https://lists.freebsd.org/mailman/options/freebsd-hackers>, <mailto:freebsd-hackers-request@freebsd.org?subject=unsubscribe> List-Archive: <http://lists.freebsd.org/pipermail/freebsd-hackers/>; List-Post: <mailto:freebsd-hackers@freebsd.org> List-Help: <mailto:freebsd-hackers-request@freebsd.org?subject=help> List-Subscribe: <https://lists.freebsd.org/mailman/listinfo/freebsd-hackers>, <mailto:freebsd-hackers-request@freebsd.org?subject=subscribe> X-List-Received-Date: Tue, 15 Oct 2019 16:48:09 -0000 On Tue, Oct 15, 2019 at 12:26:00PM -0400, Mark Johnston wrote: > On Tue, Aug 13, 2019 at 05:41:26PM +0200, Gordon Bergling wrote: > > Hello List, > > > > "uname -a" is currently mapping the -a option to „-mnrsv“, which results in something similar like > > > > $ uname -a > > FreeBSD lion.0xfce3.net 12.0-STABLE FreeBSD 12.0-STABLE r350835 GENERIC amd64 > > > > What would you think about reducing the option mapping for „-a“ to „-vmn“ , which would result in a less repetitive version string like the one below. > > > > $ uname -vmn > > lion.0xfce3.net FreeBSD 12.0-STABLE r350835 GENERIC amd64 > > > > Adapting this would be trivial, but before I hack something together, I would like to get some feedback if such a change would be welcomed? > > I'm not sure about the history which led to the current behaviour of -a, > but the unfortunately reality is that changes like the one you propose > will likely break programs that process uname -a output. Of course, > such programs should likely be using more specialized uname options > instead, but the current behaviour of -a has been in place for something > like 25 years, so it's quite likely that something depends on it. In > these situations I prefer to maintain backwards compatibility. It seems that the mail I replied to is a duplicate of [1], but it reappeared in my inbox for some reason. The conclusion there was basically the same as what I wrote. [1] https://lists.freebsd.org/pipermail/freebsd-hackers/2019-August/054963.html
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