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Merge branch 'maint-1.7.6' into maint-1.7.7

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* maint-1.7.6:
  Update draft release notes to 1.7.6.6
  thin-pack: try harder to use preferred base objects as base
This commit is contained in:
Junio C Hamano 2012-01-12 23:31:05 -08:00
commit 901c907d83
2 changed files with 12 additions and 2 deletions
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5
Documentation/RelNotes/1.7.6.6.txt
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@ -8,4 +8,9 @@ Fixes since v1.7.6.5
directory when two paths in question are in adjacent directories and
the name of the one directory is a prefix of the other.
* When producing a "thin pack" (primarily used in bundles and smart
HTTP transfers) out of a fully packed repository, we unnecessarily
avoided sending recent objects as a delta against objects we know
the other side has.
Also contains minor fixes and documentation updates.

9
builtin/pack-objects.c
View File

@ -1421,11 +1421,16 @@ static int try_delta(struct unpacked *trg, struct unpacked *src,
return -1;
/*
* We do not bother to try a delta that we discarded
* on an earlier try, but only when reusing delta data.
* We do not bother to try a delta that we discarded on an
* earlier try, but only when reusing delta data. Note that
* src_entry that is marked as the preferred_base should always
* be considered, as even if we produce a suboptimal delta against
* it, we will still save the transfer cost, as we already know
* the other side has it and we won't send src_entry at all.
*/
if (reuse_delta && trg_entry->in_pack &&
trg_entry->in_pack == src_entry->in_pack &&
!src_entry->preferred_base &&
trg_entry->in_pack_type != OBJ_REF_DELTA &&
trg_entry->in_pack_type != OBJ_OFS_DELTA)
return 0;