sequencer: convert fast_forward_to to struct object_id

fast_forward_to is required for checkout_fast_fowrard, which is required
for parse_tree_indirect.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/sequencer.c b/sequencer.c
index 218895fde1ba0f1059e60227f3695ee60fb589c3..9ca352ac78472dd285d7102599815e393caa8a67 100644 (file)
--- a/sequencer.c
+++ b/sequencer.c
@@ -374,7 +374,7 @@ static void update_abort_safety_file(void)
                write_file(git_path_abort_safety_file(), "%s", "");
 }
 
-static int fast_forward_to(const unsigned char *to, const unsigned char *from,
+static int fast_forward_to(const struct object_id *to, const struct object_id *from,
                        int unborn, struct replay_opts *opts)
 {
        struct ref_transaction *transaction;
@@ -382,7 +382,7 @@ static int fast_forward_to(const unsigned char *to, const unsigned char *from,
        struct strbuf err = STRBUF_INIT;
 
        read_cache();
-       if (checkout_fast_forward(from, to, 1))
+       if (checkout_fast_forward(from->hash, to->hash, 1))
                return -1; /* the callee should have complained already */
 
        strbuf_addf(&sb, _("%s: fast-forward"), _(action_name(opts)));
@@ -390,7 +390,7 @@ static int fast_forward_to(const unsigned char *to, const unsigned char *from,
        transaction = ref_transaction_begin(&err);
        if (!transaction ||
            ref_transaction_update(transaction, "HEAD",
-                                  to, unborn ? null_sha1 : from,
+                                  to->hash, unborn ? null_sha1 : from->hash,
                                   0, sb.buf, &err) ||
            ref_transaction_commit(transaction, &err)) {
                ref_transaction_free(transaction);
@@ -935,7 +935,7 @@ static int do_pick_commit(enum todo_command command, struct commit *commit,
 {
        unsigned int flags = opts->edit ? EDIT_MSG : 0;
        const char *msg_file = opts->edit ? NULL : git_path_merge_msg();
-       unsigned char head[20];
+       struct object_id head;
        struct commit *base, *next, *parent;
        const char *base_label, *next_label;
        struct commit_message msg = { NULL, NULL, NULL, NULL };
@@ -949,12 +949,12 @@ static int do_pick_commit(enum todo_command command, struct commit *commit,
                 * that represents the "current" state for merge-recursive
                 * to work on.
                 */
-               if (write_cache_as_tree(head, 0, NULL))
+               if (write_cache_as_tree(head.hash, 0, NULL))
                        return error(_("your index file is unmerged."));
        } else {
-               unborn = get_sha1("HEAD", head);
+               unborn = get_oid("HEAD", &head);
                if (unborn)
-                       hashcpy(head, EMPTY_TREE_SHA1_BIN);
+                       oidcpy(&head, &empty_tree_oid);
                if (index_differs_from(unborn ? EMPTY_TREE_SHA1_HEX : "HEAD", 0, 0))
                        return error_dirty_index(opts);
        }
@@ -990,11 +990,11 @@ static int do_pick_commit(enum todo_command command, struct commit *commit,
                        oid_to_hex(&commit->object.oid));
 
        if (opts->allow_ff && !is_fixup(command) &&
-           ((parent && !hashcmp(parent->object.oid.hash, head)) ||
+           ((parent && !oidcmp(&parent->object.oid, &head)) ||
             (!parent && unborn))) {
                if (is_rebase_i(opts))
                        write_author_script(msg.message);
-               res = fast_forward_to(commit->object.oid.hash, head, unborn,
+               res = fast_forward_to(&commit->object.oid, &head, unborn,
                        opts);
                if (res || command != TODO_REWORD)
                        goto leave;
@@ -1081,7 +1081,7 @@ static int do_pick_commit(enum todo_command command, struct commit *commit,
                res = -1;
        else if (!opts->strategy || !strcmp(opts->strategy, "recursive") || command == TODO_REVERT) {
                res = do_recursive_merge(base, next, base_label, next_label,
-                                        head, &msgbuf, opts);
+                                        head.hash, &msgbuf, opts);
                if (res < 0)
                        return res;
                res |= write_message(msgbuf.buf, msgbuf.len,
@@ -1097,7 +1097,7 @@ static int do_pick_commit(enum todo_command command, struct commit *commit,
                commit_list_insert(next, &remotes);
                res |= try_merge_command(opts->strategy,
                                         opts->xopts_nr, (const char **)opts->xopts,
-                                       common, sha1_to_hex(head), remotes);
+                                       common, oid_to_hex(&head), remotes);
                free_commit_list(common);
                free_commit_list(remotes);
        }