diff options
Diffstat (limited to 'diff.c')
| -rw-r--r-- | diff.c | 76 |
1 files changed, 37 insertions, 39 deletions
@@ -518,6 +518,7 @@ struct diff_filepair *diff_queue(struct diff_queue_struct *queue, dp->one = one; dp->two = two; dp->score = 0; + dp->source_stays = 0; diff_q(queue, dp); return dp; } @@ -675,8 +676,8 @@ void diff_debug_filepair(const struct diff_filepair *p, int i) { diff_debug_filespec(p->one, i, "one"); diff_debug_filespec(p->two, i, "two"); - fprintf(stderr, "score %d, status %c\n", - p->score, p->status ? : '?'); + fprintf(stderr, "score %d, status %c source_stays %d\n", + p->score, p->status ? : '?', p->source_stays); } void diff_debug_queue(const char *msg, struct diff_queue_struct *q) @@ -698,8 +699,6 @@ static void diff_resolve_rename_copy(void) struct diff_filepair *p, *pp; struct diff_queue_struct *q = &diff_queued_diff; - /* This should not depend on the ordering of things. */ - diff_debug_queue("resolve-rename-copy", q); for (i = 0; i < q->nr; i++) { @@ -707,23 +706,28 @@ static void diff_resolve_rename_copy(void) p->status = 0; /* undecided */ if (DIFF_PAIR_UNMERGED(p)) p->status = 'U'; - else if (!DIFF_FILE_VALID((p)->one)) + else if (!DIFF_FILE_VALID(p->one)) p->status = 'N'; - else if (!DIFF_FILE_VALID((p)->two)) { - /* Deletion record should be omitted if there - * are rename/copy entries using this one as - * the source. Then we can say one of them - * is a rename and the rest are copies. + 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. */ - p->status = 'D'; for (j = 0; j < q->nr; j++) { pp = q->queue[j]; - if (!strcmp(pp->one->path, p->one->path) && - strcmp(pp->one->path, pp->two->path)) { + if (!strcmp(p->one->path, pp->one->path) && + pp->score) { + /* 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_PAIR_TYPE_CHANGED(p)) p->status = 'T'; @@ -732,33 +736,24 @@ static void diff_resolve_rename_copy(void) * whose both sides are valid and of the same type, i.e. * either in-place edit or rename/copy edit. */ - else if (strcmp(p->one->path, p->two->path)) { - /* See if there is somebody else anywhere that - * will keep the path (either modified or - * unmodified). If so, we have to be a copy, - * not a rename. In addition, if there is - * some other rename or copy that comes later - * than us that uses the same source, we - * have to be a copy, not a rename. + else if (p->score) { + if (p->source_stays) { + p->status = 'C'; + continue; + } + /* See if there is some other filepair that + * copies from the same source as us. If so + * we are a copy. Otherwise we are a rename. */ - for (j = 0; j < q->nr; j++) { + for (j = i + 1; j < q->nr; j++) { pp = q->queue[j]; if (strcmp(pp->one->path, p->one->path)) - continue; - if (!strcmp(pp->one->path, pp->two->path)) { - if (DIFF_FILE_VALID(pp->two)) { - /* non-delete */ - p->status = 'C'; - break; - } - continue; - } - /* pp is a rename/copy ... */ - if (i < j) { - /* ... and comes later than us */ - p->status = 'C'; - break; - } + continue; /* not us */ + if (!pp->score) + continue; /* not a rename/copy */ + /* pp is a rename/copy from the same source */ + p->status = 'C'; + break; } if (!p->status) p->status = 'R'; @@ -767,8 +762,11 @@ static void diff_resolve_rename_copy(void) p->one->mode != p->two->mode) p->status = 'M'; else - /* this is a "no-change" entry */ - p->status = 'X'; + /* this is a "no-change" entry. + * should not happen anymore. + * p->status = 'X'; + */ + die("internal error in diffcore: unmodified entry remains"); } diff_debug_queue("resolve-rename-copy done", q); } |