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[PATCH 11/20] mmapped_ref_iterator_advance(): no peeled value for broken refs

From
Michael Haggerty <mhagger@alum.mit.edu>
Date
Sep 13, 2017, 17:16 UTC
Message-ID
<d34d2cbde67e9ef0b0b11910de19c7f722c2314c.1505319366.git.mhagger@alum.mit.edu>
In-Reply-To
<cover.1505319366.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
Previous: Michael HaggertyNext: Michael Haggerty
Message 9 of 27 in “Read `packed-refs` using mmap()”
  1. 00/20 Read `packed-refs` using mmap()Michael Haggerty, Sep 13, 2017
  2. 01/20 ref_iterator: keep track of whether the iterator output is orderedMichael Haggerty, Sep 13, 2017
  3. 02/20 prefix_ref_iterator: break when we leave the prefixMichael Haggerty, Sep 13, 2017
  4. 03/20 packed_ref_cache: add a backlink to the associated `packed_ref_store`Michael Haggerty, Sep 13, 2017
  5. 05/20 read_packed_refs(): use mmap to read the `packed-refs` fileMichael Haggerty, Sep 13, 2017
  6. 06/20 read_packed_refs(): only check for a header at the top of the fileMichael Haggerty, Sep 13, 2017
  7. 07/20 read_packed_refs(): make parsing of the header line more robustMichael Haggerty, Sep 13, 2017
  8. 09/20 packed_ref_cache: remember the file-wide peeling stateMichael Haggerty, Sep 13, 2017
  9. 11/20 mmapped_ref_iterator_advance(): no peeled value for broken refsMichael Haggerty, Sep 13, 2017
  10. 12/20 packed_ref_cache: keep the `packed-refs` file open and mmappedMichael Haggerty, Sep 13, 2017
  11. 17/20 packed_ref_store: get rid of the `ref_cache` entirelyMichael Haggerty, Sep 13, 2017
  12. 19/20 mmapped_ref_iterator: inline into `packed_ref_iterator`Michael Haggerty, Sep 13, 2017
  13. 20/20 packed-backend.c: rename a bunch of things and update commentsMichael Haggerty, Sep 13, 2017
  14. Stefan BellerSep 13, 2017
  15. 14/20 packed_ref_iterator_begin(): iterate using `mmapped_ref_iterator`Michael Haggerty, Sep 13, 2017
  16. 18/20 ref_cache: remove support for storing peeled valuesMichael Haggerty, Sep 13, 2017
  17. 10/20 mmapped_ref_iterator: add iterator over a packed-refs fileMichael Haggerty, Sep 13, 2017
  18. 15/20 packed_read_raw_ref(): read the reference from the mmapped bufferMichael Haggerty, Sep 13, 2017
  19. 16/20 ref_store: implement `refs_peel_ref()` genericallyMichael Haggerty, Sep 13, 2017
  20. 04/20 die_unterminated_line(), die_invalid_line(): new functionsMichael Haggerty, Sep 13, 2017
  21. 13/20 read_packed_refs(): ensure that references are ordered when readMichael Haggerty, Sep 13, 2017
  22. 08/20 read_packed_refs(): read references with minimal copyingMichael Haggerty, Sep 13, 2017
  23. Junio C HamanoSep 13, 2017
  24. Michael HaggertySep 14, 2017
  25. Johannes SchindelinSep 14, 2017
  26. Johannes SchindelinSep 14, 2017
  27. Michael HaggertySep 15, 2017

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