[PATCH v2 1/8] rebase --apply: remove duplicated code

["Phillip Wood via GitGitGadget" <gitgitgadget@gmail.com>]

From: Phillip Wood <phillip.wood@dunelm.org.uk>

When we are reattaching HEAD after a fast-forward we can use
move_to_original_branch() rather than open coding a copy of that
code. The old code appears to handle the case where the rebase is
started from a detached HEAD but in fact in that case there is nothing
to do as we have already updated HEAD.

Note that the removal of "strbuf_release(&msg)" is safe as there is an
identical call just above this hunk which can be seen by viewing the
diff with -U6.

Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
---
 builtin/rebase.c | 11 +----------
 1 file changed, 1 insertion(+), 10 deletions(-)

diff --git a/builtin/rebase.c b/builtin/rebase.c
index e942c300f8c..4832f16e675 100644
--- a/builtin/rebase.c
+++ b/builtin/rebase.c
@@ -1782,19 +1782,10 @@ int cmd_rebase(int argc, const char **argv, const char *prefix)
 	 * If the onto is a proper descendant of the tip of the branch, then
 	 * we just fast-forwarded.
 	 */
-	strbuf_reset(&msg);
 	if (oideq(&merge_base, &options.orig_head)) {
 		printf(_("Fast-forwarded %s to %s.\n"),
 			branch_name, options.onto_name);
-		strbuf_addf(&msg, "rebase finished: %s onto %s",
-			options.head_name ? options.head_name : "detached HEAD",
-			oid_to_hex(&options.onto->object.oid));
-		memset(&ropts, 0, sizeof(ropts));
-		ropts.branch = options.head_name;
-		ropts.flags = RESET_HEAD_REFS_ONLY;
-		ropts.head_msg = msg.buf;
-		reset_head(the_repository, &ropts);
-		strbuf_release(&msg);
+		move_to_original_branch(&options);
 		ret = finish_rebase(&options);
 		goto cleanup;
 	}
-- 
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