From: Taylor Blau <me@ttaylorr.com>
To: Denton Liu <liu.denton@gmail.com>
Cc: Git Mailing List <git@vger.kernel.org>,
"brian m . carlson" <sandals@crustytoothpaste.net>
Subject: Re: [PATCH 2/4] builtin/rev-parse: learn --null-oid
Date: Fri, 18 Sep 2020 10:16:14 -0400 [thread overview]
Message-ID: <20200918141614.GC1602321@nand.local> (raw)
In-Reply-To: <20200918141125.GB1602321@nand.local>
On Fri, Sep 18, 2020 at 10:11:25AM -0400, Taylor Blau wrote:
> Hi Denton,
>
> On Fri, Sep 18, 2020 at 04:19:03AM -0700, Denton Liu wrote:
> > When a user needed the null OID for scripting purposes, it used to be
> > very easy: hardcode 40 zeros. However, since Git started supporting
> > SHA-256, this assumption became false which may break some scripts.
> > Allow users to fix their broken scripts by providing users with a
> > hash-agnostic method of obtaining the null OID.
>
> I have not been very involved in the hash transition, so please take my
> comments with a grain of salt (and if they are misplaced, feel free to
> ignore them).
Same disclaimer above applies here, too ;-). There are a number of spots
in the test suite that reference 'ZERO_OID', as well as OIDs for the
empty tree and blob. Maybe the definition of those could be updated to
use any new flags you do/don't introduce?
I'd be just as happy if that were to occur in a different series than
this, since I don't want to hold you up by adding a bunch of new things
to your list.
In either case, I think '--zero-oid' makes more sense than '--null-oid'
(and it matches the tests that are already written). The pair
'--zero-oid' and '--empty-oid=<type>' make sense to me.
Thanks,
Taylor
next prev parent reply other threads:[~2020-09-18 14:16 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-18 11:19 [PATCH 0/4] sample hooks: become hash agnostic Denton Liu
2020-09-18 11:19 ` [PATCH 1/4] hooks--pre-push.sample: prefer $() for command substitution Denton Liu
2020-09-18 16:57 ` Eric Sunshine
2020-09-18 11:19 ` [PATCH 2/4] builtin/rev-parse: learn --null-oid Denton Liu
2020-09-18 14:11 ` Taylor Blau
2020-09-18 14:16 ` Taylor Blau [this message]
2020-09-18 18:16 ` Junio C Hamano
2020-09-18 18:21 ` Taylor Blau
2020-09-18 21:26 ` brian m. carlson
2020-09-20 4:25 ` Chris Torek
2020-09-20 18:58 ` brian m. carlson
2020-09-20 15:35 ` Taylor Blau
2020-09-20 16:03 ` Andreas Schwab
2020-09-18 11:19 ` [PATCH 3/4] hooks--pre-push.sample: use hash-agnostic null OID Denton Liu
2020-09-18 17:06 ` Eric Sunshine
2020-09-18 11:19 ` [PATCH 4/4] hooks--update.sample: " Denton Liu
2020-09-18 17:08 ` Eric Sunshine
2020-09-18 21:35 ` [PATCH 0/4] sample hooks: become hash agnostic brian m. carlson
2020-09-23 9:38 ` [PATCH v2 0/3] " Denton Liu
2020-09-23 9:38 ` [PATCH v2 1/3] hooks--pre-push.sample: modernize script Denton Liu
2020-09-23 9:38 ` [PATCH v2 2/3] hooks--pre-push.sample: use hash-agnostic zero OID Denton Liu
2020-09-23 9:38 ` [PATCH v2 3/3] hooks--update.sample: " Denton Liu
2020-09-23 16:34 ` [PATCH v2 0/3] sample hooks: become hash agnostic Junio C Hamano
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20200918141614.GC1602321@nand.local \
--to=me@ttaylorr.com \
--cc=git@vger.kernel.org \
--cc=liu.denton@gmail.com \
--cc=sandals@crustytoothpaste.net \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).