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worktree: refactor repair_worktree_after_gitdir_move()

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This refactors `repair_worktree_after_gitdir_move()` to use the new
`write_worktree_linking_files` function. It also preserves the
relativity of the linking files; e.g., if an existing worktree used
absolute paths then the repaired paths will be absolute (and visa-versa).
`repair_worktree_after_gitdir_move()` is used to repair both sets of
worktree linking files if the `.git` directory is moved during a
re-initialization using `git init`.

This also adds a test case for reinitializing a repository that has
relative worktrees.

Signed-off-by: Caleb White <cdwhite3@pm.me>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Caleb White
2024-11-29 22:23:16 +00:00
committed by Junio C Hamano
parent e6df1ee2c1
commit 2037ca85ad
2 changed files with 26 additions and 25 deletions
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29
worktree.c
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@@ -651,45 +651,32 @@ void repair_worktrees(worktree_repair_fn fn, void *cb_data, int use_relative_pat
void repair_worktree_after_gitdir_move(struct worktree *wt, const char *old_path)
{
struct strbuf path = STRBUF_INIT;
struct strbuf repo = STRBUF_INIT;
struct strbuf gitdir = STRBUF_INIT;
struct strbuf dotgit = STRBUF_INIT;
struct strbuf olddotgit = STRBUF_INIT;
struct strbuf tmp = STRBUF_INIT;
int is_relative_path;
if (is_main_worktree(wt))
goto done;
strbuf_realpath(&repo, git_common_path("worktrees/%s", wt->id), 1);
strbuf_addf(&gitdir, "%s/gitdir", repo.buf);
strbuf_realpath(&gitdir, git_common_path("worktrees/%s/gitdir", wt->id), 1);
if (strbuf_read_file(&olddotgit, gitdir.buf, 0) < 0)
if (strbuf_read_file(&dotgit, gitdir.buf, 0) < 0)
goto done;
strbuf_rtrim(&olddotgit);
if (is_absolute_path(olddotgit.buf)) {
strbuf_addbuf(&dotgit, &olddotgit);
} else {
strbuf_addf(&dotgit, "%s/worktrees/%s/%s", old_path, wt->id, olddotgit.buf);
strbuf_rtrim(&dotgit);
is_relative_path = ! is_absolute_path(dotgit.buf);
if (is_relative_path) {
strbuf_insertf(&dotgit, 0, "%s/worktrees/%s/", old_path, wt->id);
strbuf_realpath_forgiving(&dotgit, dotgit.buf, 0);
}
if (!file_exists(dotgit.buf))
goto done;
strbuf_addbuf(&path, &dotgit);
strbuf_strip_suffix(&path, "/.git");
write_file(dotgit.buf, "gitdir: %s", relative_path(repo.buf, path.buf, &tmp));
write_file(gitdir.buf, "%s", relative_path(dotgit.buf, repo.buf, &tmp));
write_worktree_linking_files(dotgit, gitdir, is_relative_path);
done:
strbuf_release(&path);
strbuf_release(&repo);
strbuf_release(&gitdir);
strbuf_release(&dotgit);
strbuf_release(&olddotgit);
strbuf_release(&tmp);
}
void repair_worktrees_after_gitdir_move(const char *old_path)