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Merge branch 'rj/avoid-switching-to-already-used-branch'

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A few subcommands have been taught to stop users from working on a
branch that is being used in another worktree linked to the same
repository.

* rj/avoid-switching-to-already-used-branch:
  switch: reject if the branch is already checked out elsewhere (test)
  rebase: refuse to switch to a branch already checked out elsewhere (test)
  branch: fix die_if_checked_out() when ignore_current_worktree
  worktree: introduce is_shared_symref()
This commit is contained in:
Junio C Hamano
2023-03-19 15:03:11 -07:00
parent c79786c486 894ea94509
commit 96a806f87a
5 changed files with 89 additions and 37 deletions
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14
branch.c
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@ -821,12 +821,16 @@ void remove_branch_state(struct repository *r, int verbose)
void die_if_checked_out(const char *branch, int ignore_current_worktree)
{
struct worktree **worktrees = get_worktrees();
const struct worktree *wt;
wt = find_shared_symref(worktrees, "HEAD", branch);
if (wt && (!ignore_current_worktree || !wt->is_current)) {
skip_prefix(branch, "refs/heads/", &branch);
die(_("'%s' is already checked out at '%s'"), branch, wt->path);
for (int i = 0; worktrees[i]; i++) {
if (worktrees[i]->is_current && ignore_current_worktree)
continue;
if (is_shared_symref(worktrees[i], "HEAD", branch)) {
skip_prefix(branch, "refs/heads/", &branch);
die(_("'%s' is already checked out at '%s'"),
branch, worktrees[i]->path);
}
}
free_worktrees(worktrees);