From a234563a3b329c8513fabbe9d8f9435987f10eb6 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Nguy=E1=BB=85n=20Th=C3=A1i=20Ng=E1=BB=8Dc=20Duy?= Date: Mon, 28 Nov 2016 16:36:54 +0700 Subject: get_worktrees() must return main worktree as first item even on error MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This is required by git-worktree.txt, stating that the main worktree is the first line (especially in --porcelain mode when we can't just change behavior at will). There's only one case when get_worktrees() may skip main worktree, when parse_ref() fails. Update the code so that we keep first item as main worktree and return something sensible in this case: - In user-friendly mode, since we're not constraint by anything, returning "(error)" should do the job (we already show "(detached HEAD)" which is not machine-friendly). Actually errors should be printed on stderr by parse_ref() (*) - In plumbing mode, we do not show neither 'bare', 'detached' or 'branch ...', which is possible by the format description if I read it right. Careful readers may realize that when the local variable "head_ref" in get_main_worktree() is emptied, add_head_info() will do nothing to wt->head_sha1. But that's ok because head_sha1 is zero-ized in the previous patch. (*) Well, it does not. But it's supposed to be a stop gap implementation until we can reuse refs code to parse "ref: " stuff in HEAD, from resolve_refs_unsafe(). Now may be the time since refs refactoring is mostly done. Signed-off-by: Nguyễn Thái Ngọc Duy Signed-off-by: Junio C Hamano --- builtin/worktree.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'builtin/worktree.c') diff --git a/builtin/worktree.c b/builtin/worktree.c index 8a654e4ad3..b835b91f63 100644 --- a/builtin/worktree.c +++ b/builtin/worktree.c @@ -388,7 +388,7 @@ static void show_worktree_porcelain(struct worktree *wt) printf("HEAD %s\n", sha1_to_hex(wt->head_sha1)); if (wt->is_detached) printf("detached\n"); - else + else if (wt->head_ref) printf("branch %s\n", wt->head_ref); } printf("\n"); @@ -408,8 +408,10 @@ static void show_worktree(struct worktree *wt, int path_maxlen, int abbrev_len) find_unique_abbrev(wt->head_sha1, DEFAULT_ABBREV)); if (wt->is_detached) strbuf_addstr(&sb, "(detached HEAD)"); - else + else if (wt->head_ref) strbuf_addf(&sb, "[%s]", shorten_unambiguous_ref(wt->head_ref, 0)); + else + strbuf_addstr(&sb, "(error)"); } printf("%s\n", sb.buf); -- cgit v1.2.1