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Do not feed rev-list an invalid SHA1 expression.
The previous round to optimize fetch-pack has a small bug that feeds SHA1^ ("parent commit") before making sure SHA1 is actually a commit (or a tag that eventually dereferences to a commit). Also it did not help culling the known-to-be-common parents if the common one was a merge. Signed-off-by: Junio C Hamano <junkio@cox.net>
This commit is contained in:
parent
0a8944dd48
commit
4dab94d52e
32
fetch-pack.c
32
fetch-pack.c
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@ -28,22 +28,36 @@ static int find_common(int fd[2], unsigned char *result_sha1,
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fetching = 0;
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for ( ; refs ; refs = refs->next) {
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unsigned char *remote = refs->old_sha1;
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struct object *o;
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/*
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If that object is complete (i.e. it is a descendant of a
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local ref), we don't want it, nor its descendants.
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*/
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if (has_sha1_file(remote)
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&& parse_object(remote)->flags & COMPLETE) {
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if (rev_command_len + 44 < sizeof(rev_command)) {
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* If that object is complete (i.e. it is an ancestor of a
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* local ref), we tell them we have it but do not have to
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* tell them about its ancestors, which they already know
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* about.
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*/
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if (has_sha1_file(remote) &&
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((o = parse_object(remote)) != NULL) &&
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(o->flags & COMPLETE)) {
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struct commit_list *p;
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struct commit *commit =
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(struct commit *) (o = deref_tag(o));
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if (!o)
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goto repair;
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if (o->type != commit_type)
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continue;
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p = commit->parents;
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while (p &&
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rev_command_len + 44 < sizeof(rev_command)) {
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snprintf(rev_command + rev_command_len, 44,
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" ^%s^", sha1_to_hex(remote));
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" ^%s",
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sha1_to_hex(p->item->object.sha1));
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rev_command_len += 43;
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p = p->next;
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}
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continue;
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}
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repair:
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packet_write(fd[1], "want %s\n", sha1_to_hex(remote));
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fetching++;
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}
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