On Sat, Mar 19, 2016 at 2:17 PM, Jose Ivan B. Vilarouca Filho
<[email protected]> wrote:
> From: "Jose Ivan B. Vilarouca Filho" <[email protected]>
You can drop this line since it is the same as the From: line in the
email envelope.
> Fixing segmentation fault when merging FETCH_HEAD
Alternate:
merge: don't dereference NULL pointer
> A segmentaion fault is raised when trying to merge FETCH_HEAD
> formed only by "not-for-merge" refs.
>
> Ex:
> git init .
> git remote add origin ...
> git fetch origin
> git merge FETCH_HEAD
Can you add a test to ensure that some future change doesn't regress
this fix? The above recipe would make a good basis for the new test.
> Signed-off-by: Jose Ivan B. Vilarouca Filho <[email protected]>
> ---
> diff --git a/builtin/merge.c b/builtin/merge.c
> @@ -1270,9 +1270,9 @@ int cmd_merge(int argc, const char **argv, const char
> *prefix)
> "an empty head"));
> remoteheads = collect_parents(head_commit, &head_subsumed,
> argc, argv, NULL);
> - remote_head = remoteheads->item;
> - if (!remote_head)
> + if ((!remoteheads) || (!remoteheads->item))
Style: drop unnecessary parantheses
if (!remoteheads || !remoteheads->item)
> die(_("%s - not something we can merge"), argv[0]);
> + remote_head = remoteheads->item;
> if (remoteheads->next)
> die(_("Can merge only exactly one commit into empty
> head"));
> read_empty(remote_head->object.oid.hash, 0);
> --
> 1.7.10.4
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