diff --git a/sequencer.c b/sequencer.c
index 9c8bd3f632..f791729271 100644
--- a/sequencer.c
+++ b/sequencer.c
@@ -1401,31 +1401,6 @@ static int allow_empty(struct replay_opts *opts, struct commit *commit)
 		return 1;
 }
 
-/*
- * Note that ordering matters in this enum. Not only must it match the mapping
- * below, it is also divided into several sections that matter.  When adding
- * new commands, make sure you add it in the right section.
- */
-enum todo_command {
-	/* commands that handle commits */
-	TODO_PICK = 0,
-	TODO_REVERT,
-	TODO_EDIT,
-	TODO_REWORD,
-	TODO_FIXUP,
-	TODO_SQUASH,
-	/* commands that do something else than handling a single commit */
-	TODO_EXEC,
-	TODO_LABEL,
-	TODO_RESET,
-	TODO_MERGE,
-	/* commands that do nothing but are counted for reporting progress */
-	TODO_NOOP,
-	TODO_DROP,
-	/* comments (not counted for reporting progress) */
-	TODO_COMMENT
-};
-
 static struct {
 	char c;
 	const char *str;
@@ -1897,26 +1872,7 @@ enum todo_item_flags {
 	TODO_EDIT_MERGE_MSG = 1
 };
 
-struct todo_item {
-	enum todo_command command;
-	struct commit *commit;
-	unsigned int flags;
-	const char *arg;
-	int arg_len;
-	size_t offset_in_buf;
-};
-
-struct todo_list {
-	struct strbuf buf;
-	struct todo_item *items;
-	int nr, alloc, current;
-	int done_nr, total_nr;
-	struct stat_data stat;
-};
-
-#define TODO_LIST_INIT { STRBUF_INIT }
-
-static void todo_list_release(struct todo_list *todo_list)
+void todo_list_release(struct todo_list *todo_list)
 {
 	strbuf_release(&todo_list->buf);
 	FREE_AND_NULL(todo_list->items);
@@ -2017,7 +1973,7 @@ static int parse_insn_line(struct todo_item *item, const char *bol, char *eol)
 	return !item->commit;
 }
 
-static int parse_insn_buffer(char *buf, struct todo_list *todo_list)
+int todo_list_parse_insn_buffer(char *buf, struct todo_list *todo_list)
 {
 	struct todo_item *item;
 	char *p = buf, *next_p;
@@ -2115,7 +2071,7 @@ static int read_populate_todo(struct todo_list *todo_list,
 		return error(_("could not stat '%s'"), todo_file);
 	fill_stat_data(&todo_list->stat, &st);
 
-	res = parse_insn_buffer(todo_list->buf.buf, todo_list);
+	res = todo_list_parse_insn_buffer(todo_list->buf.buf, todo_list);
 	if (res) {
 		if (is_rebase_i(opts))
 			return error(_("please fix this using "
@@ -2146,7 +2102,7 @@ static int read_populate_todo(struct todo_list *todo_list,
 		FILE *f = fopen_or_warn(rebase_path_msgtotal(), "w");
 
 		if (strbuf_read_file(&done.buf, rebase_path_done(), 0) > 0 &&
-				!parse_insn_buffer(done.buf.buf, &done))
+				!todo_list_parse_insn_buffer(done.buf.buf, &done))
 			todo_list->done_nr = count_commands(&done);
 		else
 			todo_list->done_nr = 0;
@@ -4276,7 +4232,7 @@ int sequencer_add_exec_commands(const char *commands)
 	if (strbuf_read_file(&todo_list.buf, todo_file, 0) < 0)
 		return error(_("could not read '%s'."), todo_file);
 
-	if (parse_insn_buffer(todo_list.buf.buf, &todo_list)) {
+	if (todo_list_parse_insn_buffer(todo_list.buf.buf, &todo_list)) {
 		todo_list_release(&todo_list);
 		return error(_("unusable todo list: '%s'"), todo_file);
 	}
@@ -4311,7 +4267,7 @@ int transform_todos(unsigned flags)
 	if (strbuf_read_file(&todo_list.buf, todo_file, 0) < 0)
 		return error(_("could not read '%s'."), todo_file);
 
-	if (parse_insn_buffer(todo_list.buf.buf, &todo_list)) {
+	if (todo_list_parse_insn_buffer(todo_list.buf.buf, &todo_list)) {
 		todo_list_release(&todo_list);
 		return error(_("unusable todo list: '%s'"), todo_file);
 	}
@@ -4397,7 +4353,7 @@ int check_todo_list(void)
 		goto leave_check;
 	}
 	advise_to_edit_todo = res =
-		parse_insn_buffer(todo_list.buf.buf, &todo_list);
+		todo_list_parse_insn_buffer(todo_list.buf.buf, &todo_list);
 
 	if (res || check_level == MISSING_COMMIT_CHECK_IGNORE)
 		goto leave_check;
@@ -4416,7 +4372,7 @@ int check_todo_list(void)
 		goto leave_check;
 	}
 	strbuf_release(&todo_file);
-	res = !!parse_insn_buffer(todo_list.buf.buf, &todo_list);
+	res = !!todo_list_parse_insn_buffer(todo_list.buf.buf, &todo_list);
 
 	/* Find commits in git-rebase-todo.backup yet unseen */
 	for (i = todo_list.nr - 1; i >= 0; i--) {
@@ -4498,7 +4454,7 @@ static int skip_unnecessary_picks(struct object_id *output_oid)
 
 	if (strbuf_read_file_or_whine(&todo_list.buf, todo_file) < 0)
 		return -1;
-	if (parse_insn_buffer(todo_list.buf.buf, &todo_list) < 0) {
+	if (todo_list_parse_insn_buffer(todo_list.buf.buf, &todo_list) < 0) {
 		todo_list_release(&todo_list);
 		return -1;
 	}
@@ -4586,7 +4542,7 @@ int complete_action(struct replay_opts *opts, unsigned flags,
 	if (strbuf_read_file(buf, todo_file, 0) < 0)
 		return error_errno(_("could not read '%s'."), todo_file);
 
-	if (parse_insn_buffer(buf->buf, &todo_list)) {
+	if (todo_list_parse_insn_buffer(buf->buf, &todo_list)) {
 		todo_list_release(&todo_list);
 		return error(_("unusable todo list: '%s'"), todo_file);
 	}
@@ -4694,7 +4650,7 @@ int rearrange_squash(void)
 
 	if (strbuf_read_file_or_whine(&todo_list.buf, todo_file) < 0)
 		return -1;
-	if (parse_insn_buffer(todo_list.buf.buf, &todo_list) < 0) {
+	if (todo_list_parse_insn_buffer(todo_list.buf.buf, &todo_list) < 0) {
 		todo_list_release(&todo_list);
 		return -1;
 	}
diff --git a/sequencer.h b/sequencer.h
index aab280f276..cc69473bc2 100644
--- a/sequencer.h
+++ b/sequencer.h
@@ -67,6 +67,54 @@ enum missing_commit_check_level {
 int write_message(const void *buf, size_t len, const char *filename,
 		  int append_eol);
 
+/*
+ * Note that ordering matters in this enum. Not only must it match the mapping
+ * of todo_command_info (in sequencer.c), it is also divided into several
+ * sections that matter.  When adding new commands, make sure you add it in the
+ * right section.
+ */
+enum todo_command {
+	/* commands that handle commits */
+	TODO_PICK = 0,
+	TODO_REVERT,
+	TODO_EDIT,
+	TODO_REWORD,
+	TODO_FIXUP,
+	TODO_SQUASH,
+	/* commands that do something else than handling a single commit */
+	TODO_EXEC,
+	TODO_LABEL,
+	TODO_RESET,
+	TODO_MERGE,
+	/* commands that do nothing but are counted for reporting progress */
+	TODO_NOOP,
+	TODO_DROP,
+	/* comments (not counted for reporting progress) */
+	TODO_COMMENT
+};
+
+struct todo_item {
+	enum todo_command command;
+	struct commit *commit;
+	unsigned int flags;
+	const char *arg;
+	int arg_len;
+	size_t offset_in_buf;
+};
+
+struct todo_list {
+	struct strbuf buf;
+	struct todo_item *items;
+	int nr, alloc, current;
+	int done_nr, total_nr;
+	struct stat_data stat;
+};
+
+#define TODO_LIST_INIT { STRBUF_INIT }
+
+int todo_list_parse_insn_buffer(char *buf, struct todo_list *todo_list);
+void todo_list_release(struct todo_list *todo_list);
+
 /* Call this to setup defaults before parsing command line options */
 void sequencer_init_config(struct replay_opts *opts);
 int sequencer_pick_revisions(struct replay_opts *opts);
