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From: Michael Haggerty <mhagger@alum.mit.edu>
To: Junio C Hamano <gitster@pobox.com>
Cc: "Stefan Beller" <sbeller@google.com>,
	"Johannes Schindelin" <Johannes.Schindelin@gmx.de>,
	"Nguyễn Thái Ngọc Duy" <pclouds@gmail.com>,
	"Jeff King" <peff@peff.net>,
	"Ævar Arnfjörð Bjarmason" <avarab@gmail.com>,
	"Brandon Williams" <bmwill@google.com>,
	git@vger.kernel.org, "Michael Haggerty" <mhagger@alum.mit.edu>
Subject: [PATCH v2 11/21] mmapped_ref_iterator_advance(): no peeled value for broken refs
Date: Tue, 19 Sep 2017 08:22:19 +0200	[thread overview]
Message-ID: <d34d2cbde67e9ef0b0b11910de19c7f722c2314c.1505799700.git.mhagger@alum.mit.edu> (raw)
In-Reply-To: <cover.1505799700.git.mhagger@alum.mit.edu>

If a reference is broken, suppress its peeled value.

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
---
 refs/packed-backend.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/refs/packed-backend.c b/refs/packed-backend.c
index 312116a99d..724c88631d 100644
--- a/refs/packed-backend.c
+++ b/refs/packed-backend.c
@@ -234,9 +234,15 @@ static int mmapped_ref_iterator_advance(struct ref_iterator *ref_iterator)
 
 		/*
 		 * Regardless of what the file header said, we
-		 * definitely know the value of *this* reference:
+		 * definitely know the value of *this* reference. But
+		 * we suppress it if the reference is broken:
 		 */
-		iter->base.flags |= REF_KNOWS_PEELED;
+		if ((iter->base.flags & REF_ISBROKEN)) {
+			oidclr(&iter->peeled);
+			iter->base.flags &= ~REF_KNOWS_PEELED;
+		} else {
+			iter->base.flags |= REF_KNOWS_PEELED;
+		}
 	} else {
 		oidclr(&iter->peeled);
 	}
-- 
2.14.1


  parent reply	other threads:[~2017-09-19  6:23 UTC|newest]

Thread overview: 40+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-09-19  6:22 [PATCH v2 00/21] Read `packed-refs` using mmap() Michael Haggerty
2017-09-19  6:22 ` [PATCH v2 01/21] ref_iterator: keep track of whether the iterator output is ordered Michael Haggerty
2017-09-19  6:22 ` [PATCH v2 02/21] prefix_ref_iterator: break when we leave the prefix Michael Haggerty
2017-09-20 20:25   ` Stefan Beller
2017-09-21  4:59     ` Jeff King
2017-09-21 17:29       ` Stefan Beller
2017-09-21  7:42     ` Michael Haggerty
2017-09-19  6:22 ` [PATCH v2 03/21] packed_ref_cache: add a backlink to the associated `packed_ref_store` Michael Haggerty
2017-09-19  6:22 ` [PATCH v2 04/21] die_unterminated_line(), die_invalid_line(): new functions Michael Haggerty
2017-09-19  6:22 ` [PATCH v2 05/21] read_packed_refs(): use mmap to read the `packed-refs` file Michael Haggerty
2017-09-19  6:22 ` [PATCH v2 06/21] read_packed_refs(): only check for a header at the top of the file Michael Haggerty
2017-09-19  6:22 ` [PATCH v2 07/21] read_packed_refs(): make parsing of the header line more robust Michael Haggerty
2017-09-19  6:22 ` [PATCH v2 08/21] read_packed_refs(): read references with minimal copying Michael Haggerty
2017-09-20 18:27   ` Jeff King
2017-09-21  7:34     ` Michael Haggerty
2017-09-19  6:22 ` [PATCH v2 09/21] packed_ref_cache: remember the file-wide peeling state Michael Haggerty
2017-09-19  6:22 ` [PATCH v2 10/21] mmapped_ref_iterator: add iterator over a packed-refs file Michael Haggerty
2017-09-19  6:22 ` Michael Haggerty [this message]
2017-09-20 18:29   ` [PATCH v2 11/21] mmapped_ref_iterator_advance(): no peeled value for broken refs Jeff King
2017-09-19  6:22 ` [PATCH v2 12/21] packed-backend.c: reorder some definitions Michael Haggerty
2017-09-19  6:22 ` [PATCH v2 13/21] packed_ref_cache: keep the `packed-refs` file mmapped if possible Michael Haggerty
2017-09-19 12:44   ` Michael Haggerty
2017-09-24  6:56     ` Junio C Hamano
2017-09-20 18:40   ` Jeff King
2017-09-20 18:51     ` Jeff King
2017-09-21  8:04       ` Michael Haggerty
2017-09-19  6:22 ` [PATCH v2 14/21] read_packed_refs(): ensure that references are ordered when read Michael Haggerty
2017-09-20 18:50   ` Jeff King
2017-09-21  8:27     ` Michael Haggerty
2017-09-25 15:44       ` Johannes Schindelin
2017-09-19  6:22 ` [PATCH v2 15/21] packed_ref_iterator_begin(): iterate using `mmapped_ref_iterator` Michael Haggerty
2017-09-19  6:22 ` [PATCH v2 16/21] packed_read_raw_ref(): read the reference from the mmapped buffer Michael Haggerty
2017-09-19  6:22 ` [PATCH v2 17/21] ref_store: implement `refs_peel_ref()` generically Michael Haggerty
2017-09-19  6:22 ` [PATCH v2 18/21] packed_ref_store: get rid of the `ref_cache` entirely Michael Haggerty
2017-09-19  6:22 ` [PATCH v2 19/21] ref_cache: remove support for storing peeled values Michael Haggerty
2017-09-19  6:22 ` [PATCH v2 20/21] mmapped_ref_iterator: inline into `packed_ref_iterator` Michael Haggerty
2017-09-19  6:22 ` [PATCH v2 21/21] packed-backend.c: rename a bunch of things and update comments Michael Haggerty
2017-09-19 19:53 ` [PATCH v2 00/21] Read `packed-refs` using mmap() Johannes Schindelin
2017-09-20 18:57 ` Jeff King
2017-09-25 15:55   ` Johannes Schindelin

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