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diff: futureproof "stop feeding the backend early" logic

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Refactor the "do not stop feeding the backend early" logic into a small
helper function and use it in both run_diff_files() and diff_tree() that
has the stop-early optimization. We may later add other types of diffcore
transformation that require to look at the whole result like diff-filter
does, and having the logic in a single place is essential for longer term
maintainability.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Junio C Hamano
2011-05-31 09:14:17 -07:00
parent af7b41c923
commit 28b9264dd6
4 changed files with 11 additions and 6 deletions
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4
diff-lib.c
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@ -73,9 +73,7 @@ int run_diff_files(struct rev_info *revs, unsigned int option)
struct cache_entry *ce = active_cache[i];
int changed;
if (DIFF_OPT_TST(&revs->diffopt, QUICK) &&
!revs->diffopt.filter &&
DIFF_OPT_TST(&revs->diffopt, HAS_CHANGES))
if (diff_can_quit_early(&revs->diffopt))
break;
if (!ce_path_match(ce, revs->prune_data))