From: Jacob Abel <jacobabel@nullpo.dev>
To: Junio C Hamano <gitster@pobox.com>
Cc: git@vger.kernel.org, "Ævar Arnfjörð Bjarmason" <avarab@gmail.com>,
"Eric Sunshine" <sunshine@sunshineco.com>,
"Phillip Wood" <phillip.wood123@gmail.com>,
"Rubén Justo" <rjusto@gmail.com>, "Taylor Blau" <me@ttaylorr.com>,
rsbecker@nexbridge.com
Subject: Re: [PATCH v5 3/4] worktree add: add --orphan flag
Date: Wed, 21 Dec 2022 00:17:07 +0000 [thread overview]
Message-ID: <20221221001658.4yd34zyl3yavrjhq@phi> (raw)
In-Reply-To: <xmqqlen2wvtn.fsf@gitster.g>
On 22/12/20 01:19PM, Junio C Hamano wrote:
> Jacob Abel <jacobabel@nullpo.dev> writes:
>
> > Adds support for creating an orphan branch when adding a new worktree.
> > This functionality is equivalent to git switch's --orphan flag.
> >
> > The original reason this feature was implemented was to allow a user
> > to initialise a new repository using solely the worktree oriented
> > workflow.
> >
> > Current Behavior:
> >
> > % git init --bare foo.git
> > Initialized empty Git repository in /path/to/foo.git/
> > % git -C foo.git worktree add main/
> > Preparing worktree (new branch 'main')
> > fatal: not a valid object name: 'HEAD'
> > %
> >
> > New Behavior:
> >
> > % git init --bare foo.git
> > Initialized empty Git repository in /path/to/foo.git/
> > % git -C foo.git worktree add --orphan main main/
> > Preparing worktree (new branch 'main')
> > %
>
> Hmph, I suspect that in reviews for the previous rounds someboddy
> must have brought this up, but I wonder if we can detect the case
> automatically and behave as if "--orphan" were given. In other
> words, shouldn't the desired outcome (i.e. "worktree add" can be run
> to create an orphan branch even when the original were on an unborn
> branch) become the new behaviour WITHOUT having the user learn new
> option?
Yes. Other reviewers have suggested trying to DWYM with the `--orphan` behavior.
I have been hesitant to add that functionality as in my opinion it can lead to
confusing behavior. This is largely because in many cases, where we could want
`--orphan` to DWYM would overlap with a user making a mistake with the more
common uses of `git worktree add`.
I'm not opposed to adding this DWYM behavior in another patch but I think it
might be worth waiting to do so. I'm looking at working on another patchset
after this one which would better illustrate what decisions `git worktree add`
makes when it tries to DWYM. In my opinion, after that patchset would probably
be the best time to try and integrate `--orphan` behavior into DWYM.
>
> If the point of "--orphan" is to create a worktree that checks out a
> yet-to-be-bork branch, whether the original is an empty repository
> or a populated one, then the user may need "--orphan" option, but
> the above illustration is very misleading if that is the intention.
>
> Rather, you should start from a populated repository and explain
> that "worktree add" without "--orphan" (i.e. the current behaviour)
> does not give you an empty tree with empty history, so run an extra
> "switch --orphan" after that. Then illustrate that you can lose the
> last step with the new option "--orphan".
>
> Or something like that.
Understood. I've updated the commit message.
>
> > Signed-off-by: Jacob Abel <jacobabel@nullpo.dev>
> > Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
>
> This e-mail coming from you and not from Ævar, with you apparently
> being the author of the patch, makes these two S-o-b lines
> questionable. What's the chain of custody of the change? If Ævar
> showed some code changes, and you swallowed that into a larger piece
> of work (i.e. this patch), then the above two lines are swapped.
>
Ah, yes. They provided a fairly substantial fixup patch against this patch
during an earlier revision[1]. I integrated it into 3/4 and added that S-o-b as
requested here[2].
I've swapped the S-o-b lines in the commit message.
The diff on the commit message is below. Apologies about the formatting. I
wasn't sure how to get the commit text diff with `git diff` so I used normal
`diff` instead.
--- 3-of-4-v5 2022-12-20 18:49:43.007548775 -0500
+++ 3-of-4-v6 2022-12-20 19:14:38.296292361 -0500
@@ -1,28 +1,48 @@
worktree add: add --orphan flag
Adds support for creating an orphan branch when adding a new worktree.
This functionality is equivalent to git switch's --orphan flag.
The original reason this feature was implemented was to allow a user
to initialise a new repository using solely the worktree oriented
workflow.
Current Behavior:
-
-% git init --bare foo.git
-Initialized empty Git repository in /path/to/foo.git/
+% git -C foo.git --no-pager branch -l
++ main
% git -C foo.git worktree add main/
Preparing worktree (new branch 'main')
+HEAD is now at 6c93a75 a commit
+%
+
+% git init bar.git
+Initialized empty Git repository in /path/to/bar.git/
+% git -C bar.git --no-pager branch -l
+
+% git -C bar.git worktree add main/
+Preparing worktree (new branch 'main')
fatal: not a valid object name: 'HEAD'
%
New Behavior:
-% git init --bare foo.git
-Initialized empty Git repository in /path/to/foo.git/
-% git -C foo.git worktree add --orphan main main/
+% git -C foo.git --no-pager branch -l
++ main
+% git -C foo.git worktree add main/
+Preparing worktree (new branch 'main')
+HEAD is now at 6c93a75 a commit
+%
+
+% git init --bare bar.git
+Initialized empty Git repository in /path/to/bar.git/
+% git -C bar.git --no-pager branch -l
+
+% git -C bar.git worktree add main/
+Preparing worktree (new branch 'main')
+fatal: invalid reference: HEAD
+% git -C bar.git worktree add --orphan main main/
Preparing worktree (new branch 'main')
%
-Signed-off-by: Jacob Abel <jacobabel@nullpo.dev>
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
+Signed-off-by: Jacob Abel <jacobabel@nullpo.dev>
1. https://lore.kernel.org/git/221115.86edu3kfqz.gmgdl@evledraar.gmail.com/
2. https://lore.kernel.org/git/221119.861qpzf9ey.gmgdl@evledraar.gmail.com/
next prev parent reply other threads:[~2022-12-21 0:17 UTC|newest]
Thread overview: 129+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-11-04 1:02 [PATCH 0/4] worktree: Support `--orphan` when creating new worktrees Jacob Abel
2022-11-04 1:03 ` [PATCH 1/4] worktree add: Include -B in usage docs Jacob Abel
2022-11-04 3:05 ` Eric Sunshine
2022-11-04 4:24 ` Jacob Abel
2022-11-04 1:03 ` [PATCH 2/4] builtin/worktree.c: Update checkout_worktree() to use git-worktree Jacob Abel
2022-11-04 1:32 ` Ævar Arnfjörð Bjarmason
2022-11-04 3:58 ` Jacob Abel
2022-11-04 20:45 ` Taylor Blau
2022-11-04 1:03 ` [PATCH 3/4] worktree add: add --orphan flag Jacob Abel
2022-11-04 1:33 ` Ævar Arnfjörð Bjarmason
2022-11-04 4:11 ` Jacob Abel
2022-11-04 5:03 ` Eric Sunshine
2022-11-04 16:41 ` Jacob Abel
2022-11-10 4:13 ` Eric Sunshine
2022-11-10 21:21 ` Jacob Abel
2022-11-04 1:03 ` [PATCH 4/4] worktree add: Add unit tests for --orphan Jacob Abel
2022-11-04 1:37 ` Ævar Arnfjörð Bjarmason
2022-11-04 4:17 ` Jacob Abel
2022-11-04 4:33 ` [PATCH 0/4] worktree: Support `--orphan` when creating new worktrees Eric Sunshine
2022-11-04 4:47 ` Jacob Abel
2022-11-04 4:50 ` Jacob Abel
2022-11-04 21:34 ` [PATCH v2 0/2] " Jacob Abel
2022-11-04 21:34 ` [PATCH v2 1/2] worktree add: Include -B in usage docs Jacob Abel
2022-11-04 21:34 ` [PATCH v2 2/2] worktree add: add --orphan flag Jacob Abel
2022-11-10 23:32 ` [PATCH v3 0/2] worktree: Support `--orphan` when creating new worktrees Jacob Abel
2022-11-10 23:32 ` [PATCH v3 1/2] worktree add: Include -B in usage docs Jacob Abel
2022-11-10 23:32 ` [PATCH v3 2/2] worktree add: add --orphan flag Jacob Abel
2022-11-15 21:08 ` Ævar Arnfjörð Bjarmason
2022-11-15 21:29 ` Eric Sunshine
2022-11-15 22:35 ` Ævar Arnfjörð Bjarmason
2022-11-16 0:19 ` Eric Sunshine
2022-11-19 3:13 ` Jacob Abel
2022-11-19 3:09 ` Jacob Abel
2022-11-19 11:50 ` Ævar Arnfjörð Bjarmason
2022-11-19 1:44 ` Jacob Abel
2022-11-22 6:00 ` Eric Sunshine
2022-11-22 23:09 ` Jacob Abel
2022-11-15 22:09 ` Ævar Arnfjörð Bjarmason
2022-11-19 2:57 ` Jacob Abel
2022-11-19 11:50 ` Ævar Arnfjörð Bjarmason
2022-11-16 0:39 ` [PATCH v3 0/2] worktree: Support `--orphan` when creating new worktrees Eric Sunshine
2022-11-17 10:00 ` Ævar Arnfjörð Bjarmason
2022-11-19 3:47 ` Jacob Abel
2022-11-19 11:48 ` Ævar Arnfjörð Bjarmason
2022-11-22 5:16 ` Eric Sunshine
2022-11-22 23:26 ` Jacob Abel
2022-11-22 23:55 ` Ævar Arnfjörð Bjarmason
2022-11-23 2:47 ` Jacob Abel
2022-11-23 2:43 ` Rubén Justo
2022-11-23 5:37 ` Jacob Abel
2022-11-23 7:35 ` Rubén Justo
2022-11-22 14:45 ` Phillip Wood
2022-11-23 4:21 ` Jacob Abel
2022-12-12 1:42 ` [PATCH v4 0/3] " Jacob Abel
2022-12-12 1:42 ` [PATCH v4 1/3] worktree add: Include -B in usage docs Jacob Abel
2022-12-12 1:42 ` [PATCH v4 2/3] worktree add: add --orphan flag Jacob Abel
2022-12-12 8:11 ` Ævar Arnfjörð Bjarmason
2022-12-12 14:55 ` Jacob Abel
2022-12-12 18:14 ` Ævar Arnfjörð Bjarmason
2022-12-12 22:39 ` Jacob Abel
2022-12-12 1:43 ` [PATCH v4 3/3] worktree add: Add hint to use --orphan when bad ref Jacob Abel
2022-12-12 8:35 ` Ævar Arnfjörð Bjarmason
2022-12-12 14:59 ` Jacob Abel
2022-12-12 18:16 ` Ævar Arnfjörð Bjarmason
2022-12-12 18:35 ` Eric Sunshine
2022-12-12 22:36 ` Jacob Abel
2022-12-12 22:38 ` Jacob Abel
2022-12-20 2:37 ` [PATCH v5 0/4] worktree: Support `--orphan` when creating new worktrees Jacob Abel
2022-12-20 2:37 ` [PATCH v5 1/4] worktree add: Include -B in usage docs Jacob Abel
2022-12-20 3:42 ` Junio C Hamano
2022-12-20 23:24 ` Jacob Abel
2022-12-20 2:37 ` [PATCH v5 2/4] worktree add: refactor opt exclusion tests Jacob Abel
2022-12-20 4:00 ` Junio C Hamano
2022-12-20 23:29 ` Jacob Abel
2022-12-20 2:38 ` [PATCH v5 3/4] worktree add: add --orphan flag Jacob Abel
2022-12-20 4:19 ` Junio C Hamano
2022-12-21 0:17 ` Jacob Abel [this message]
2022-12-20 2:38 ` [PATCH v5 4/4] worktree add: Add hint to use --orphan when bad ref Jacob Abel
2022-12-20 6:18 ` Junio C Hamano
2022-12-21 0:42 ` Jacob Abel
2022-12-28 6:16 ` [PATCH v6 0/4] worktree: Support `--orphan` when creating new worktrees Jacob Abel
2022-12-28 6:16 ` [PATCH v6 1/4] worktree add: include -B in usage docs Jacob Abel
2022-12-28 6:16 ` [PATCH v6 2/4] worktree add: refactor opt exclusion tests Jacob Abel
2022-12-28 12:54 ` Junio C Hamano
2022-12-29 6:51 ` Jacob Abel
2022-12-29 10:07 ` Junio C Hamano
2022-12-29 20:48 ` Jacob Abel
2023-01-06 6:31 ` Jacob Abel
2023-01-06 12:34 ` Junio C Hamano
2023-01-07 4:45 ` Jacob Abel
2022-12-28 6:17 ` [PATCH v6 3/4] worktree add: add --orphan flag Jacob Abel
2022-12-28 6:17 ` [PATCH v6 4/4] worktree add: add hint to direct users towards --orphan Jacob Abel
2023-01-06 14:19 ` Phillip Wood
2022-12-28 8:01 ` [PATCH v6 0/4] worktree: Support `--orphan` when creating new worktrees Ævar Arnfjörð Bjarmason
2022-12-29 6:38 ` Jacob Abel
2022-12-29 10:42 ` Ævar Arnfjörð Bjarmason
2022-12-29 21:22 ` Jacob Abel
2023-01-07 4:58 ` [PATCH v7 " Jacob Abel
2023-01-07 4:59 ` [PATCH v7 1/4] worktree add: include -B in usage docs Jacob Abel
2023-01-07 4:59 ` [PATCH v7 2/4] worktree add: refactor opt exclusion tests Jacob Abel
2023-01-08 7:13 ` Junio C Hamano
2023-01-08 15:08 ` Jacob Abel
2023-01-07 4:59 ` [PATCH v7 3/4] worktree add: add --orphan flag Jacob Abel
2023-01-07 4:59 ` [PATCH v7 4/4] worktree add: add hint to direct users towards --orphan Jacob Abel
2023-01-09 12:26 ` [PATCH v7 0/4] worktree: Support `--orphan` when creating new worktrees Ævar Arnfjörð Bjarmason
2023-01-09 17:11 ` Jacob Abel
2023-01-09 17:21 ` Ævar Arnfjörð Bjarmason
2023-01-09 17:26 ` Jacob Abel
2023-01-09 17:32 ` [PATCH v8 " Jacob Abel
2023-01-09 17:32 ` [PATCH v8 1/4] worktree add: include -B in usage docs Jacob Abel
2023-01-09 17:33 ` [PATCH v8 2/4] worktree add: refactor opt exclusion tests Jacob Abel
2023-01-09 17:33 ` [PATCH v8 3/4] worktree add: add --orphan flag Jacob Abel
2023-01-13 10:20 ` Phillip Wood
2023-01-13 17:32 ` Junio C Hamano
2023-01-14 22:47 ` Jacob Abel
2023-01-15 3:09 ` Junio C Hamano
2023-01-15 3:41 ` rsbecker
2023-01-15 3:49 ` Junio C Hamano
2023-01-18 22:46 ` 'Jacob Abel'
2023-01-18 22:18 ` Jacob Abel
2023-01-19 15:32 ` Ævar Arnfjörð Bjarmason
2023-01-19 16:32 ` Junio C Hamano
2023-01-16 10:47 ` Phillip Wood
2023-01-18 22:40 ` Jacob Abel
2023-01-19 16:18 ` Phillip Wood
2023-01-19 22:20 ` Jacob Abel
2023-01-09 17:33 ` [PATCH v8 4/4] worktree add: add hint to direct users towards --orphan Jacob Abel
2023-01-09 19:20 ` [PATCH v8 0/4] worktree: Support `--orphan` when creating new worktrees Ævar Arnfjörð Bjarmason
2023-01-13 17:34 ` Junio C Hamano
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