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[PATCH] diff: fix the culling of unneeded delete record.

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The commit 15d061b435

    [PATCH] Fix the way diffcore-rename records unremoved source.

still leaves unneeded delete records in its output stream by
mistake, which was covered up by having an extra check to turn
such a delete into a no-op downstream.  Fix the check in the
diffcore-rename to simplify the output routine.

Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Junio C Hamano 2005-05-30 00:08:07 -07:00 committed by Linus Torvalds
parent 9d429ff6ff
commit 2cd68882ee
2 changed files with 35 additions and 32 deletions
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23
diff.c
View File

@ -792,27 +792,8 @@ static void diff_resolve_rename_copy(void)
p->status = 'U';
else if (!DIFF_FILE_VALID(p->one))
p->status = 'N';
else if (!DIFF_FILE_VALID(p->two)) {
/* Deleted entry may have been picked up by
* another rename-copy entry. So we scan the
* queue and if we find one that uses us as the
* source we do not say delete for this entry.
*/
for (j = 0; j < q->nr; j++) {
pp = q->queue[j];
if (!strcmp(p->one->path, pp->one->path) &&
DIFF_PAIR_RENAME(pp)) {
/* rename/copy are always valid
* so we do not say DIFF_FILE_VALID()
* on pp->one and pp->two.
*/
p->status = 'X';
break;
}
}
if (!p->status)
p->status = 'D';
}
else if (!DIFF_FILE_VALID(p->two))
p->status = 'D';
else if (DIFF_PAIR_TYPE_CHANGED(p))
p->status = 'T';

44
diffcore-rename.c
View File

@ -328,26 +328,48 @@ void diffcore_rename(int detect_rename, int minimum_score)
outq.nr = outq.alloc = 0;
for (i = 0; i < q->nr; i++) {
struct diff_filepair *p = q->queue[i];
struct diff_rename_dst *dst = locate_rename_dst(p->two, 0);
struct diff_filepair *pair_to_free = NULL;
if (dst) {
/* creation */
if (dst->pair) {
/* renq has rename/copy to produce
* this file already, so we do not
* emit the creation record in the
* output.
*/
if (!DIFF_FILE_VALID(p->one) && DIFF_FILE_VALID(p->two)) {
/*
* Creation
*
* We would output this create record if it has
* not been turned into a rename/copy already.
*/
struct diff_rename_dst *dst =
locate_rename_dst(p->two, 0);
if (dst && dst->pair) {
diff_q(&outq, dst->pair);
pair_to_free = p;
}
else
/* no matching rename/copy source, so record
* this as a creation.
/* no matching rename/copy source, so
* record this as a creation.
*/
diff_q(&outq, p);
}
else if (DIFF_FILE_VALID(p->one) && !DIFF_FILE_VALID(p->two)) {
/*
* Deletion
*
* We would output this delete record if renq
* does not have a rename/copy to move
* p->one->path out.
*/
for (j = 0; j < renq.nr; j++)
if (!strcmp(renq.queue[j]->one->path,
p->one->path))
break;
if (j < renq.nr)
/* this path remains */
pair_to_free = p;
if (pair_to_free)
;
else
diff_q(&outq, p);
}
else if (!diff_unmodified_pair(p))
/* all the usual ones need to be kept */
diff_q(&outq, p);