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From: "Kristoffer Haugsbakk" <code@khaugsbakk•name>
To: "Elijah Newren" <newren@gmail•com>,
	"Kristoffer Haugsbakk" <kristofferhaugsbakk@fastmail•com>
Cc: git@vger•kernel.org,
	"Christian Couder" <christian.couder@gmail•com>,
	"Siddharth Asthana" <siddharthasthana31@gmail•com>,
	"Phillip Wood" <phillip.wood@dunelm•org.uk>
Subject: Re: [PATCH v2 3/5] replay: die descriptively when invalid commit-ish is given
Date: Fri, 02 Jan 2026 12:11:29 +0100	[thread overview]
Message-ID: <c488a180-b840-43df-a593-4dac6b7f00d2@app.fastmail.com> (raw)
In-Reply-To: <CABPp-BH1b3rHi96qXLQwQRX6g7POmqYLKyAc=_1UsWmfiWsGFg@mail.gmail.com>

On Tue, Dec 30, 2025, at 23:52, Elijah Newren wrote:
>>[snip]
>> @@ -349,13 +351,10 @@ int cmd_replay(int argc,
>>
>>         populate_for_onto_or_advance_mode(repo, &revs.cmdline,
>>                                           onto_name, &advance_name,
>>                                           &onto, &update_refs);
>>
>> -       if (!onto) /* FIXME: Should handle replaying down to root commit */
>> -               die("Replaying down to root commit is not supported yet!");
>> -
>
> Removing the `if` makes sense given the current code, but I wonder if
> we should keep a corrected FIXME here:
>     /* FIXME: Should allow replaying commits with the first as a root commit */

Okay, I will change to keeping this updated comment at this line but
remove the if-block. And I will remove the moved comment:

    if (!commit->parents) /* FIXME: Should handle replaying down to root commit */
        die(_("replaying down to root commit is not supported yet!"));

Specifically I will remove the if-block on this patch/commit and make
another patch for both renaming the comment and the “replaying down”
die-statement.

>
> This is out-of-scope for this series, but behind that FIXME...
>
>  I'm guessing the user would specify to cherry-pick onto NULL via something like
>    git replay --root A..B
> which would translate into making `onto` be NULL, and mean that the
> first commit after A would be a root commit.
>
> Similarly the user could be allowed to do something like
>   git replay --advance new-empty-branch A..B
> where new-empty-branch doesn't yet point to a commit, this would also
> result in `onto` being NULL, and start new-empty-branch by
> cherry-picking some commits into it.

Okay. With options from git-rev-list(1) like `--root` this mode makes sense.

>
>>         if (prepare_revision_walk(&revs) < 0) {
>>                 ret = error(_("error preparing revisions"));
>>                 goto cleanup;
>>         }
>>
>>
>> @@ -367,11 +366,11 @@ int cmd_replay(int argc,
>>         while ((commit = get_revision(&revs))) {
>>                 const struct name_decoration *decoration;
>>                 khint_t pos;
>>                 int hr;
>>
>> -               if (!commit->parents)
>> +               if (!commit->parents) /* FIXME: Should handle replaying down to root commit */
>>                         die(_("replaying down to root commit is not supported yet!"));
>
> I wonder if I should have written s/to/from/ here ?

“replaying down from”? Not “replaying from”?

>
>
>>[snip]

  reply	other threads:[~2026-01-02 11:11 UTC|newest]

Thread overview: 35+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-12-22 22:04 [PATCH 0/2] replay: die descriptively when invalid commit-ish kristofferhaugsbakk
2025-12-22 22:04 ` [PATCH 1/2] " kristofferhaugsbakk
2025-12-23  3:12   ` Junio C Hamano
2025-12-23 10:52     ` Phillip Wood
2025-12-23 13:41       ` Junio C Hamano
2025-12-30 14:30       ` Kristoffer Haugsbakk
2025-12-22 22:04 ` [PATCH 2/2] t3650: add more regression tests for failure conditions kristofferhaugsbakk
2025-12-23 10:58   ` Phillip Wood
2025-12-30 14:33     ` Kristoffer Haugsbakk
2025-12-23  3:16 ` [PATCH 0/2] replay: die descriptively when invalid commit-ish Junio C Hamano
2025-12-30 14:33   ` Kristoffer Haugsbakk
2025-12-24  3:03 ` Elijah Newren
2025-12-30 14:31   ` Kristoffer Haugsbakk
2025-12-30 15:01 ` [PATCH v2 0/5] " kristofferhaugsbakk
2025-12-30 15:01   ` [PATCH v2 1/5] replay: remove dead code and rearrange kristofferhaugsbakk
2025-12-30 22:50     ` Elijah Newren
2025-12-30 23:37       ` Junio C Hamano
2026-01-02  9:51       ` Kristoffer Haugsbakk
2025-12-30 15:01   ` [PATCH v2 2/5] replay: find *onto only after testing for ref name kristofferhaugsbakk
2025-12-30 22:51     ` Elijah Newren
2025-12-30 15:01   ` [PATCH v2 3/5] replay: die descriptively when invalid commit-ish is given kristofferhaugsbakk
2025-12-30 22:52     ` Elijah Newren
2026-01-02 11:11       ` Kristoffer Haugsbakk [this message]
2025-12-30 15:01   ` [PATCH v2 4/5] replay: die if we cannot parse object kristofferhaugsbakk
2025-12-30 15:01   ` [PATCH v2 5/5] t3650: add more regression tests for failure conditions kristofferhaugsbakk
2025-12-30 22:53   ` [PATCH v2 0/5] replay: die descriptively when invalid commit-ish Elijah Newren
2026-01-05 19:53   ` [PATCH v3 0/6] " kristofferhaugsbakk
2026-01-05 19:53     ` [PATCH v3 1/6] replay: remove dead code and rearrange kristofferhaugsbakk
2026-01-05 19:53     ` [PATCH v3 2/6] replay: find *onto only after testing for ref name kristofferhaugsbakk
2026-01-05 19:53     ` [PATCH v3 3/6] replay: die descriptively when invalid commit-ish is given kristofferhaugsbakk
2026-01-05 19:53     ` [PATCH v3 4/6] replay: improve code comment and die message kristofferhaugsbakk
2026-01-05 19:53     ` [PATCH v3 5/6] replay: die if we cannot parse object kristofferhaugsbakk
2026-01-05 19:53     ` [PATCH v3 6/6] t3650: add more regression tests for failure conditions kristofferhaugsbakk
2026-01-06 23:12     ` [PATCH v3 0/6] replay: die descriptively when invalid commit-ish Elijah Newren
2026-01-07  3:56       ` Junio C Hamano

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