From: Derrick Stolee <derrickstolee@github.com>
To: Victoria Dye <vdye@github.com>, git@vger.kernel.org
Cc: Phillip Wood <phillip.wood123@gmail.com>,
"herr.kaste" <herr.kaste@gmail.com>,
Phillip Wood <phillip.wood@dunelm.org.uk>
Subject: Re: [PATCH v2] rebase --update-refs: avoid unintended ref deletion
Date: Mon, 7 Nov 2022 14:25:09 -0500 [thread overview]
Message-ID: <6c19845a-b7e5-da85-34d5-0461960668bc@github.com> (raw)
In-Reply-To: <20221107174752.91186-1-vdye@github.com>
On 11/7/22 12:47 PM, Victoria Dye wrote:
> In b3b1a21d1a5 (sequencer: rewrite update-refs as user edits todo list,
> 2022-07-19), the 'todo_list_filter_update_refs()' step was added to handle
> the removal of 'update-ref' lines from a 'rebase-todo'. Specifically, it
> removes potential ref updates from the "update refs state" if a ref does not
> have a corresponding 'update-ref' line.
>
> However, because 'write_update_refs_state()' will not update the state if
> the 'refs_to_oids' list was empty, removing *all* 'update-ref' lines will
> result in the state remaining unchanged from how it was initialized (with
> all refs' "after" OID being null). Then, when the ref update is applied, all
> refs will be updated to null and consequently deleted.
>
> To fix this, delete the 'update-refs' state file when 'refs_to_oids' is
> empty. Additionally, add a tests covering "all update-ref lines removed"
> cases.
>
> Reported-by: herr.kaste <herr.kaste@gmail.com>
> Helped-by: Phillip Wood <phillip.wood@dunelm.org.uk>
> Helped-by: Derrick Stolee <derrickstolee@github.com>
> Signed-off-by: Victoria Dye <vdye@github.com>
> ---
> Changes since v1:
> - Modified approach to handling empty 'refs_to_oids' from "optional force write
> empty file" to "always unlink"
> - Added/updated tests
This "always unlink" version is much cleaner. Thanks!
The new tests look great and I'm confident that they
are exercising the unlink() followed by a retry of
parsing the update-refs steps.
This version LGTM.
Thanks,
-Stolee
next prev parent reply other threads:[~2022-11-07 19:25 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-10-20 17:01 rebase -i --update-refs can lead to deletion of branches herr.kaste
2022-10-20 20:49 ` Erik Cervin Edin
2022-11-03 9:32 ` Phillip Wood
2022-11-03 15:25 ` herr.kaste
2022-11-03 16:52 ` Erik Cervin Edin
2022-11-04 0:31 ` Victoria Dye
2022-11-04 10:40 ` Phillip Wood
2022-11-04 15:28 ` Victoria Dye
2022-11-04 16:57 ` [PATCH] rebase --update-refs: avoid unintended ref deletion Victoria Dye
2022-11-04 19:44 ` Taylor Blau
2022-11-04 20:17 ` Phillip Wood
2022-11-04 20:12 ` Phillip Wood
2022-11-07 2:39 ` Derrick Stolee
2022-11-07 17:47 ` [PATCH v2] " Victoria Dye
2022-11-07 19:17 ` Taylor Blau
2022-11-07 19:25 ` Derrick Stolee [this message]
2022-11-08 9:58 ` Phillip Wood
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=6c19845a-b7e5-da85-34d5-0461960668bc@github.com \
--to=derrickstolee@github.com \
--cc=git@vger.kernel.org \
--cc=herr.kaste@gmail.com \
--cc=phillip.wood123@gmail.com \
--cc=phillip.wood@dunelm.org.uk \
--cc=vdye@github.com \
/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 read-only IMAP folder(s) and NNTP newsgroup(s).