From owner-freebsd-git@freebsd.org Thu May 30 13:23:27 2019 Return-Path: Delivered-To: freebsd-git@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 6394615C2874 for ; Thu, 30 May 2019 13:23:27 +0000 (UTC) (envelope-from carpeddiem@gmail.com) Received: from mail-it1-f193.google.com (mail-it1-f193.google.com [209.85.166.193]) (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 368D589B6C for ; Thu, 30 May 2019 13:23:26 +0000 (UTC) (envelope-from carpeddiem@gmail.com) Received: by mail-it1-f193.google.com with SMTP id i63so5026655ita.3 for ; Thu, 30 May 2019 06:23:26 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc:content-transfer-encoding; bh=LCjt2Vo6Pahn9xmxPpU+3Qjw7U/GpLMc9+gDrbvm73E=; b=Bl7TCfAZdsQDOX+TAV9TEvmW7BNSDM9qcE9mR5pmF9rlMAFgJPopUWKBVoM0Sw60go BQ4GjsAfu0ueRXWYjcrAOaZvIfKKPJukPMMttpFJzxsAPs8HmTSBKcc0J6rdYO/XFX8w OGDfNyb/qR1MBeYHgLiqBOPMKagpdANcHMpjdPuQ19JSyuZ0Bi/ERMMn9GwCZRVB1Bjv ZtaEYkOYG1iB7gFHCekMfOJZFbc6QqNfmNonOKfAQKn9///++qXK22r9Kb1VNhbqJY7L ojVFusEX2GAHz86YGDulGjJXPJYZf8uL6fwLj1ANCe7CdhmBzWAE4/uTLRudPTUbtUu9 WOrQ== X-Gm-Message-State: APjAAAXl1ocrPJvR8Pximb7sU8C+wLS1FTwnQtpRCu4DMgfsWCRgmiP6 4DCGeXebwLw+bc0V/1GbGPl/W74Fnc+NZgpy428CmQ== X-Google-Smtp-Source: APXvYqwdUZGTa/xTp6F6uPT11Ne4WcUYzfUIjKV6dsJj9yZ9gR24HstwMrQWlLThNeOJDIMC5l0WeJE+5+W6I0kiJXU= X-Received: by 2002:a24:fec9:: with SMTP id w192mr2737296ith.44.1559222605027; Thu, 30 May 2019 06:23:25 -0700 (PDT) MIME-Version: 1.0 References: <8697933A-B813-4088-90B7-A84589C3CD33@freebsd.org> <6fb4c8cb-7f59-872e-4de6-a8a02e7c4e29@gjunka.com> <82938a26-892e-0459-aa23-bdcd9e318b6c@gjunka.com> In-Reply-To: From: Ed Maste Date: Thu, 30 May 2019 09:23:11 -0400 Message-ID: Subject: Re: Git handling of commit times To: Warner Losh Cc: Grzegorz Junka , freebsd-git@freebsd.org Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Rspamd-Queue-Id: 368D589B6C X-Spamd-Bar: ---- Authentication-Results: mx1.freebsd.org; spf=pass (mx1.freebsd.org: domain of carpeddiem@gmail.com designates 209.85.166.193 as permitted sender) smtp.mailfrom=carpeddiem@gmail.com X-Spamd-Result: default: False [-4.26 / 15.00]; ARC_NA(0.00)[]; NEURAL_HAM_MEDIUM(-1.00)[-1.000,0]; FROM_HAS_DN(0.00)[]; RCPT_COUNT_THREE(0.00)[3]; R_SPF_ALLOW(-0.20)[+ip4:209.85.128.0/17]; NEURAL_HAM_LONG(-1.00)[-1.000,0]; MIME_GOOD(-0.10)[text/plain]; PREVIOUSLY_DELIVERED(0.00)[freebsd-git@freebsd.org]; DMARC_NA(0.00)[freebsd.org]; TO_DN_SOME(0.00)[]; MIME_TRACE(0.00)[0:+]; TO_MATCH_ENVRCPT_SOME(0.00)[]; MX_GOOD(-0.01)[cached: alt3.gmail-smtp-in.l.google.com]; NEURAL_HAM_SHORT(-0.97)[-0.972,0]; RCVD_IN_DNSWL_NONE(0.00)[193.166.85.209.list.dnswl.org : 127.0.5.0]; RCVD_TLS_LAST(0.00)[]; FORGED_SENDER(0.30)[emaste@freebsd.org,carpeddiem@gmail.com]; RWL_MAILSPIKE_POSSIBLE(0.00)[193.166.85.209.rep.mailspike.net : 127.0.0.17]; R_DKIM_NA(0.00)[]; FREEMAIL_ENVFROM(0.00)[gmail.com]; ASN(0.00)[asn:15169, ipnet:209.85.128.0/17, country:US]; FROM_NEQ_ENVFROM(0.00)[emaste@freebsd.org,carpeddiem@gmail.com]; IP_SCORE(-1.28)[ip: (-0.67), ipnet: 209.85.128.0/17(-3.38), asn: 15169(-2.29), country: US(-0.06)]; RCVD_COUNT_TWO(0.00)[2] X-BeenThere: freebsd-git@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Discussion of git use in the FreeBSD project List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 30 May 2019 13:23:27 -0000 On Wed, 29 May 2019 at 22:28, Warner Losh wrote: > > How do I see this other timestamp. git log doesn't show it by default, he= nce the basis of my views... git log --format=3Dfuller or if you want to see all of the metadata without git interpreting it, git log --format=3Draw > I have no clue what the time on git.freebsd.org is, nor do I know if it i= s sane or not in the face of all kinds of crazy stuff, including leap secon= ds, bad configuration, active attack, clock steps because someone[tm] thoug= h a different ntp daemon would be good enough and didn't understand all the= nuanced differences? I expect that the folks managing freebsd.org infrastructure understand the details well enough that we wouldn't have grossly a grossly inaccurate clock due to misconfiguration, at least. In any case we're a bit off in the weeds on this, we're not yet at a point where we need to sort out these details.