[PATCH v2 1/3] merge: abort if fails to commit

["Nguyễn Thái Ngọc Duy" <pclouds@gmail.com>]

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
---
 2011/12/15 Junio C Hamano <gitster@pobox.com>:
 >> -     commit_tree(merge_msg.buf, merge_msg.len, result_tree, parent, result_commit, NULL);
 >> +     if (commit_tree(merge_msg.buf, merge_msg.len,
 >> +                     result_tree, parent, result_commit, NULL))
 >> +             die(_("failed to write commit object"));
 >>       finish(head, result_commit, "In-index merge");
 >>       drop_save();
 >>       return 0;
 >
 > Should we die immediately, or should we do some clean-ups after ourselves
 > before doing so?

 I'm not sure. I had a quick look over the command and it seems we do
 not need to do any clean-ups. But I'm not familiar with the command
 anyway..

 > In any case, this is a good change that shouldn't be taken hostage to the
 > unrelated change in patch [1/3].

 Moved it up so it you can cherry-pick it independently.

 builtin/merge.c |    6 ++++--
 1 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/builtin/merge.c b/builtin/merge.c
index 2870a6a..27576c0 100644
--- a/builtin/merge.c
+++ b/builtin/merge.c
@@ -913,7 +913,8 @@ static int merge_trivial(struct commit *head)
 	parent->next->item = remoteheads->item;
 	parent->next->next = NULL;
 	prepare_to_commit();
-	commit_tree(merge_msg.buf, result_tree, parent, result_commit, NULL);
+	if (commit_tree(merge_msg.buf, result_tree, parent, result_commit, NULL))
+		die(_("failed to write commit object"));
 	finish(head, result_commit, "In-index merge");
 	drop_save();
 	return 0;
@@ -944,7 +945,8 @@ static int finish_automerge(struct commit *head,
 	strbuf_addch(&merge_msg, '\n');
 	prepare_to_commit();
 	free_commit_list(remoteheads);
-	commit_tree(merge_msg.buf, result_tree, parents, result_commit, NULL);
+	if (commit_tree(merge_msg.buf, result_tree, parents, result_commit, NULL))
+		die(_("failed to write commit object"));
 	strbuf_addf(&buf, "Merge made by the '%s' strategy.", wt_strategy);
 	finish(head, result_commit, buf.buf);
 	strbuf_release(&buf);
-- 
1.7.8.36.g69ee2