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From: "Rafael Ascensão" <rafa.almas@gmail.com>
To: git@vger.kernel.org
Cc: Junio C Hamano <gitster@pobox.com>,
	David Turner <dturner@twopensource.com>,
	Jonathan Nieder <jrnieder@gmail.com>,
	Michael Haggerty <mhagger@alum.mit.edu>,
	"brian m. carlson" <sandals@crustytoothpaste.net>
Subject: git update-ref fails to create reference. (bug)
Date: Fri, 4 May 2018 17:28:12 +0100	[thread overview]
Message-ID: <cced9e2c-7d02-47fd-109a-1185eed13e63@gmail.com> (raw)

While trying to create a pseudo reference named REF pointing to the
empty tree iff it doesn't exist, I stumbled on the following:

I assume both are valid ways to create such reference:
 	a) $ echo -e option no-deref\\nupdate REF $(git hash-object -t tree /dev/null) 0000000000000000000000000000000000000000 | git update-ref --stdin
 	b) $ git update-ref --no-deref REF $(git hash-object -t tree /dev/null) 0000000000000000000000000000000000000000

While a) works, b) will throw:
	fatal: could not read ref 'REF'

Bisect seems to point to:
2c3aed138 (pseudoref: check return values from read_ref(), 2015-07-15)

Thanks,
Rafael Ascensão

             reply	other threads:[~2018-05-04 16:28 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-05-04 16:28 Rafael Ascensão [this message]
2018-05-04 18:26 ` git update-ref fails to create reference. (bug) Martin Ågren
2018-05-05 19:08   ` Rafael Ascensão
2018-05-06 13:35     ` [PATCH] refs: handle null-oid for pseudorefs Martin Ågren
2018-05-06 15:37       ` David Turner
2018-05-07  7:39       ` Michael Haggerty
2018-05-07 10:05         ` Martin Ågren
2018-05-10 19:29           ` [PATCH v2 0/3] refs: handle zero oid " Martin Ågren
2018-05-10 19:29             ` [PATCH v2 1/3] refs.c: refer to "object ID", not "sha1", in error messages Martin Ågren
2018-05-10 19:29             ` [PATCH v2 2/3] t1400: add tests around adding/deleting pseudorefs Martin Ågren
2018-05-10 19:29             ` [PATCH v2 3/3] refs: handle zero oid for pseudorefs Martin Ågren

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