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merge-recursive: Avoid excessive output for and reprocessing of renames

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In 5a2580d (merge_recursive: Fix renames across paths below D/F conflicts
2010-07-09) and ae74548 (merge-recursive: Fix multiple file rename across
D/F conflict 2010-08-17), renames across D/F conflicts were fixed by
making process_renames() consider as unprocessed renames whose dst_entry
"still" had higher stage entries.  The assumption was that those higher
stage entries would have been cleared out of dst_entry by that point in
cases where the conflict could be resolved (normal renames with no D/F
conflicts).  That is not the case -- higher stage entries will remain in
all cases.

Fix this by checking for higher stage entries corresponding to D/F
conflicts, namely that stages 2 and 3 have exactly one nonzero mode between
them.  The nonzero mode stage corresponds to a file at the path, while the
stage with a zero mode will correspond to a directory at that path (since
rename/delete conflicts will have already been handled before this codepath
is reached.)

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Elijah Newren 2010-08-20 06:55:40 -06:00 committed by Junio C Hamano
parent ae745487ad
commit 96ecac677a
1 changed files with 2 additions and 6 deletions
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8
merge-recursive.c
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@ -1020,7 +1020,6 @@ static int process_renames(struct merge_options *o,
if (mfi.clean &&
sha_eq(mfi.sha, ren1->pair->two->sha1) &&
mfi.mode == ren1->pair->two->mode) {
int i;
/*
* This message is part of
* t6022 test. If you change
@ -1032,12 +1031,9 @@ static int process_renames(struct merge_options *o,
* in the index (e.g. due to a D/F
* conflict) that need to be resolved.
*/
for (i = 1; i <= 3; i++) {
if (!ren1->dst_entry->stages[i].mode)
continue;
if (!ren1->dst_entry->stages[2].mode !=
!ren1->dst_entry->stages[3].mode)
ren1->dst_entry->processed = 0;
break;
}
} else {
if (mfi.merge || !mfi.clean)
output(o, 1, "Renaming %s => %s", ren1_src, ren1_dst);