From: Kristoffer Haugsbakk <kristofferhaugsbakk@fastmail.com>
Date: Wed, 28 Oct 2026 11:32:30 GMT
Subject: Re: [PATCH v2] worktree list: add --branch to select worktrees by branch
Message-ID: <ad504925-cdda-4de6-8791-97a51a9d90a3@app.fastmail.com>
In-Reply-To: <20261024165311.57387-1-me@jaspermayone.com>

On Sat, Oct 24, 2026, at 18:53, Jasper Mayone wrote:
> There is no direct way to ask which worktree has a given branch
> checked out. "git worktree list --porcelain" prints the branch of
> every worktree, so a script has to parse the whole list and match the
> "branch" lines itself.

git-for-each-ref(1) (and git-branch(1) etc.) have `worktreepath`.

    git worktree add ../test-branch
    git worktree remove $(git for-each-ref \
        --format='%(worktreepath)' refs/heads/test-branch)
    git branch -d test-branch

It will not list the worktree path if that branch is being rebased.

>
> Teach "git worktree list" a "--branch=<branch>" option that lists
> only the worktrees that have <branch> checked out. It can be given
> more than once. A worktree that is rebasing or bisecting a branch
> counts as having it checked out, as it does for "git branch -d" and
> "git worktree add". <branch> is a branch name, or a full name under
> refs/heads/.
>
> This keeps the choice of branches in "git branch", which already has
> --merged, --contains, --points-at and patterns. For example, to list
> the worktrees whose branch is merged into origin/main:
>
>     git worktree list \
> 	$(git branch --format='--branch=%(refname)' --merged origin/main)
>
> The --format is needed because the default output of "git branch"
> marks the current branch with "*" and the branches checked out in
> other worktrees with "+". It uses the full name because
> %(refname:short) gives "heads/topic" when a tag is also called
> "topic".
>
> Each worktree's branch is found once and looked up in a set of the
> requested branches, so feeding it every branch of a large repository
> stays cheap.
>
> A detached worktree has no branch, so it is never listed.
>
> Suggested-by: Junio C Hamano <gitster@pobox.com>
> Signed-off-by: Jasper Mayone <me@jaspermayone.com>
> ---
>[snip]