Re: [PATCH] Make git-prune submodule aware (and fix a SEGFAULT in the process)
- From
Junio C Hamano <gitster@pobox.com>
- Date
- Aug 17, 2007, 23:48 UTC
- Message-ID
- <7vtzqxen8b.fsf@gitster.siamese.dyndns.org>
- In-Reply-To
- <alpine.LFD.0.999.0708170956140.30176@woody.linux-foundation.org>
Linus Torvalds <torvalds@linux-foundation.org> writes:
Show 32 quoted lines
> On Fri, 17 Aug 2007, Andy Parkins wrote:
>>
>> Could any of the guru's give me a guide to upload-pack.c? I assume the
>> problem is going to be the same as it was for git-prune, the hash for the
>> gitlink object in the tree is being assumed to be an object in the ODB;
>> which isn't the case with gitlink entries. Where would that be happening
>> in git-upload-pack? The fix is going to be..
>>
>> if( S_ISGITLINK(mode))
>> continue;
>>
>> But I've got no idea where to put it :-)
>
> Maybe this one?
>
> ---
> builtin-pack-objects.c | 2 ++
> 1 files changed, 2 insertions(+), 0 deletions(-)
>
> diff --git a/builtin-pack-objects.c b/builtin-pack-objects.c
> index 24926db..77481df 100644
> --- a/builtin-pack-objects.c
> +++ b/builtin-pack-objects.c
> @@ -979,6 +979,8 @@ static void add_pbase_object(struct tree_desc *tree,
> int cmp;
>
> while (tree_entry(tree,&entry)) {
> + if (S_ISGITLINK(entry.mode))
> + continue;
> cmp = tree_entry_len(entry.path, entry.sha1) != cmplen ? 1 :
> memcmp(name, entry.path, cmplen);
> if (cmp > 0)This sounds very plausible.
Andy, in the repository your fetch fails, if a fetch-pack without "--thin" before Linus's patch does not barf, that strongly suggests that the breakage you are seeing is related to this codepath. And with Linus's patch, "fetch-pack --thin" would also be fixed.