From owner-freebsd-current@freebsd.org Tue Dec 29 01:06:34 2020 Return-Path: Delivered-To: freebsd-current@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 91FCA4C859E for ; Tue, 29 Dec 2020 01:06:34 +0000 (UTC) (envelope-from david@catwhisker.org) Received: from mx.catwhisker.org (mx.catwhisker.org [107.204.234.170]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 4D4bpd4gMNz4yRj for ; Tue, 29 Dec 2020 01:06:33 +0000 (UTC) (envelope-from david@catwhisker.org) Received: from albert.catwhisker.org (localhost [127.0.0.1]) by albert.catwhisker.org (8.16.1/8.15.2) with ESMTP id 0BT16Qeq016818 for ; Tue, 29 Dec 2020 01:06:26 GMT (envelope-from david@albert.catwhisker.org) Received: (from david@localhost) by albert.catwhisker.org (8.16.1/8.16.1/Submit) id 0BT16QmM016817 for freebsd-current@freebsd.org; Mon, 28 Dec 2020 17:06:26 -0800 (PST) (envelope-from david) Date: Mon, 28 Dec 2020 17:06:26 -0800 From: David Wolfskill To: freebsd-current@freebsd.org Subject: Re: git and the loss of revision numbers Message-ID: Reply-To: current@freebsd.org Mail-Followup-To: current@freebsd.org, freebsd-current@freebsd.org References: <54116640-E6A1-4C53-9D7E-4384F942628E@ellael.org> <8ABAC674-89AA-47BE-996C-4DF6E7713F21@ellael.org> <53dd689b-2401-8e90-f332-50c60c549c2e@FreeBSD.org> <1d1e2003-0cc1-6e67-0ceb-f0fcba03f8f7@twcny.rr.com> <20201229005639.GS31099@funkthat.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="/0TPpVhDBVQOvb2J" Content-Disposition: inline In-Reply-To: <20201229005639.GS31099@funkthat.com> X-Rspamd-Queue-Id: 4D4bpd4gMNz4yRj X-Spamd-Bar: ----- X-Spamd-Result: default: False [-5.15 / 15.00]; HAS_REPLYTO(0.00)[current@freebsd.org]; ARC_NA(0.00)[]; FREEFALL_USER(0.00)[david]; FROM_HAS_DN(0.00)[]; RBL_DBL_DONT_QUERY_IPS(0.00)[107.204.234.170:from]; TO_MATCH_ENVRCPT_ALL(0.00)[]; R_SPF_ALLOW(-0.20)[+ip4:107.204.234.170]; MIME_GOOD(-0.20)[multipart/signed,text/plain]; REPLYTO_DOM_NEQ_FROM_DOM(0.00)[]; PREVIOUSLY_DELIVERED(0.00)[freebsd-current@freebsd.org]; RCPT_COUNT_ONE(0.00)[1]; SPAMHAUS_ZRD(0.00)[107.204.234.170:from:127.0.2.255]; TO_DN_NONE(0.00)[]; NEURAL_HAM_LONG(-1.00)[-1.000]; NEURAL_HAM_SHORT(-0.75)[-0.752]; DMARC_NA(0.00)[catwhisker.org]; NEURAL_HAM_MEDIUM(-1.00)[-1.000]; RCVD_TLS_LAST(0.00)[]; SIGNED_PGP(-2.00)[]; FROM_EQ_ENVFROM(0.00)[]; R_DKIM_NA(0.00)[]; MIME_TRACE(0.00)[0:+,1:+,2:~]; ASN(0.00)[asn:7018, ipnet:107.192.0.0/12, country:US]; RCVD_COUNT_TWO(0.00)[2]; MAILMAN_DEST(0.00)[freebsd-current] X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 29 Dec 2020 01:06:34 -0000 --/0TPpVhDBVQOvb2J Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Mon, Dec 28, 2020 at 04:56:39PM -0800, John-Mark Gurney wrote: > monochrome wrote this message on Mon, Dec 28, 2020 at 19:38 -0500: > > what would be the git command for reverting source to a previous versio= n=20 > > using these numbers? for example, with svn and old numbers: > > svnlite update -r367627 /usr/src > >=20 > > this is needed often when it blows up for someone tracking current >=20 > Get the hash from a commit number: > $git rev-list --reverse HEAD | tail -n +255241 | head -n 1 > 3cc0c0d66a065554459bd2f9b4f80cc07426464a >=20 > so: > git checkout $(git rev-list --reverse HEAD | tail -n +255240 | head -n 1) > .... Or save a process: git rev-list --reverse HEAD | awk 'NR =3D=3D 255241 {print; exit 0}' 3cc0c0d66a065554459bd2f9b4f80cc07426464a (And thus: git checkout $(git rev-list --reverse HEAD | awk 'NR =3D=3D 255241 {print; = exit 0}') Could also pass the number to awk via the "-v var=3Dvalue" command-line.) Peace, david --=20 David H. Wolfskill david@catwhisker.org While Trump successfully conned a lot of people for a while, in the end he's just a failure throwing a temper tantrum because he lost. See https://www.catwhisker.org/~david/publickey.gpg for my public key. --/0TPpVhDBVQOvb2J Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQGTBAEBCgB9FiEE4owz2QxMJyaxAefyQLJg+bY2PckFAl/qgRJfFIAAAAAALgAo aXNzdWVyLWZwckBub3RhdGlvbnMub3BlbnBncC5maWZ0aGhvcnNlbWFuLm5ldEUy OEMzM0Q5MEM0QzI3MjZCMTAxRTdGMjQwQjI2MEY5QjYzNjNEQzkACgkQQLJg+bY2 Pcn7nAf9FFcmQJqZjD4LBGpmk5Jy+FGIrc5kOpnH+jbo/Lo4z24rUB+jzy2aQQKn Cpaz+2Tt5B0GeW6u++qsIKZc9SvOm3btr/RnKg9JGHRvyw4erHyLUozzWV+EAAfT YynXLNfw/RKnq3RPgE1eyLCQi7nMziVYDy6JgUMz1sg0tlzGSrVTA9chmmEGqdl2 bVAxkmGZS15qvLr+bRaRqVqhA4OEDVezKdIXy5RRe8XZwCLP01NDPiRVMpOtq5Va prWiY0FP5opcCm4yvgTKTs7f1kprUMaBbSH4KpaSDqGRi2b1QGlcF3nJ+eXrCKsr JryDc/6WlkrFMcnhrGyHzWD/rbPJsw== =ZAOG -----END PGP SIGNATURE----- --/0TPpVhDBVQOvb2J--