Re: [PATCH v7 16/16] rebase--interactive: move several functions to rebase--interactive.c

> As sequencer_add_exec_commands(), rearrange_squash_in_todo_file(), and
> transform_todo_file() are only needed inside of rebase--interactive.c
> for rebase -p, they are moved there from sequencer.c.
> 
> The parameter r (repository) is dropped from them, and the error
> handling of rearrange_squash_in_todo_file() is slightly improved.
> 
> Signed-off-by: Alban Gruin <alban.gruin@gmail.com>
> ---
>  builtin/rebase--interactive.c | 81 +++++++++++++++++++++++++++++++++--
>  sequencer.c                   | 79 ++--------------------------------
>  sequencer.h                   |  7 ++-
>  3 files changed, 84 insertions(+), 83 deletions(-)
> 
> diff --git a/builtin/rebase--interactive.c b/builtin/rebase--interactive.c
> index 370d584683..fb11f23692 100644
> --- a/builtin/rebase--interactive.c
> +++ b/builtin/rebase--interactive.c
> @@ -13,6 +13,81 @@ static GIT_PATH_FUNC(path_state_dir, "rebase-merge/")
>  static GIT_PATH_FUNC(path_squash_onto, "rebase-merge/squash-onto")
>  static GIT_PATH_FUNC(path_interactive, "rebase-merge/interactive")
>  
> +static int add_exec_commands(struct string_list *commands)
> +{
> +	const char *todo_file = rebase_path_todo();
> +	struct todo_list todo_list = TODO_LIST_INIT;
> +	int res;
> +
> +	if (strbuf_read_file(&todo_list.buf, todo_file, 0) < 0)
> +		return error_errno(_("could not read '%s'."), todo_file);
> +
> +	if (todo_list_parse_insn_buffer(the_repository, todo_list.buf.buf,
> +					&todo_list)) {
> +		todo_list_release(&todo_list);
> +		return error(_("unusable todo list: '%s'"), todo_file);
> +	}
> +
> +	todo_list_add_exec_commands(&todo_list, commands);
> +	res = todo_list_write_to_file(the_repository, &todo_list,
> +				      todo_file, NULL, NULL, -1, 0);
> +	todo_list_release(&todo_list);
> +
> +	if (res)
> +		return error_errno(_("could not write '%s'."), todo_file);
> +	return 0;
> +}
> +
> +static int rearrange_squash_in_todo_file(void)
> +{
> +	const char *todo_file = rebase_path_todo();
> +	struct todo_list todo_list = TODO_LIST_INIT;
> +	int res = 0;
> +
> +	if (strbuf_read_file(&todo_list.buf, todo_file, 0) < 0)
> +		return error_errno(_("could not read '%s'."), todo_file);
> +	if (todo_list_parse_insn_buffer(the_repository, todo_list.buf.buf,
> +					&todo_list)) {
> +		todo_list_release(&todo_list);
> +		return error(_("unusable todo list: '%s'"), todo_file);
> +	}
> +
> +	res = todo_list_rearrange_squash(&todo_list);
> +	if (!res)
> +		res = todo_list_write_to_file(the_repository, &todo_list,
> +					      todo_file, NULL, NULL, -1, 0);
> +
> +	todo_list_release(&todo_list);
> +
> +	if (res)
> +		return error_errno(_("could not write '%s'."), todo_file);
> +	return 0;
> +}
> +
> +static int transform_todo_file(unsigned flags)
> +{
> +	const char *todo_file = rebase_path_todo();
> +	struct todo_list todo_list = TODO_LIST_INIT;
> +	int res;
> +
> +	if (strbuf_read_file(&todo_list.buf, todo_file, 0) < 0)
> +		return error_errno(_("could not read '%s'."), todo_file);
> +
> +	if (todo_list_parse_insn_buffer(the_repository, todo_list.buf.buf,
> +					&todo_list)) {
> +		todo_list_release(&todo_list);
> +		return error(_("unusable todo list: '%s'"), todo_file);
> +	}
> +
> +	res = todo_list_write_to_file(the_repository, &todo_list, todo_file,
> +				      NULL, NULL, -1, flags);
> +	todo_list_release(&todo_list);
> +
> +	if (res)
> +		return error_errno(_("could not write '%s'."), todo_file);
> +	return 0;
> +}
> +
>  static int edit_todo_file(unsigned flags)
>  {
>  	const char *todo_file = rebase_path_todo();
> @@ -276,16 +351,16 @@ int cmd_rebase__interactive(int argc, const char **argv, const char *prefix)
>  	}
>  	case SHORTEN_OIDS:
>  	case EXPAND_OIDS:
> -		ret = transform_todo_file(the_repository, flags);
> +		ret = transform_todo_file(flags);
>  		break;
>  	case CHECK_TODO_LIST:
>  		ret = check_todo_list_from_file(the_repository);
>  		break;
>  	case REARRANGE_SQUASH:
> -		ret = rearrange_squash_in_todo_file(the_repository);
> +		ret = rearrange_squash_in_todo_file();
>  		break;
>  	case ADD_EXEC:
> -		ret = sequencer_add_exec_commands(the_repository, &commands);
> +		ret = add_exec_commands(&commands);
>  		break;
>  	default:
>  		BUG("invalid command '%d'", command);
> diff --git a/sequencer.c b/sequencer.c
> index df8b239fdc..7d35f83f4c 100644
> --- a/sequencer.c
> +++ b/sequencer.c
> @@ -4499,8 +4499,8 @@ int sequencer_make_script(struct repository *r, struct strbuf *out, int argc,
>   * Add commands after pick and (series of) squash/fixup commands
>   * in the todo list.
>   */
> -static void todo_list_add_exec_commands(struct todo_list *todo_list,
> -					struct string_list *commands)
> +void todo_list_add_exec_commands(struct todo_list *todo_list,
> +				 struct string_list *commands)
>  {
>  	struct strbuf *buf = &todo_list->buf;
>  	size_t base_offset = buf->len;
> @@ -4559,30 +4559,6 @@ static void todo_list_add_exec_commands(struct todo_list *todo_list,
>  	todo_list->alloc = alloc;
>  }
>  
> -int sequencer_add_exec_commands(struct repository *r,
> -				struct string_list *commands)
> -{
> -	const char *todo_file = rebase_path_todo();
> -	struct todo_list todo_list = TODO_LIST_INIT;
> -	int res;
> -
> -	if (strbuf_read_file(&todo_list.buf, todo_file, 0) < 0)
> -		return error_errno(_("could not read '%s'."), todo_file);
> -
> -	if (todo_list_parse_insn_buffer(r, todo_list.buf.buf, &todo_list)) {
> -		todo_list_release(&todo_list);
> -		return error(_("unusable todo list: '%s'"), todo_file);
> -	}
> -
> -	todo_list_add_exec_commands(&todo_list, commands);
> -	res = todo_list_write_to_file(r, &todo_list, todo_file, NULL, NULL, -1, 0);
> -	todo_list_release(&todo_list);
> -
> -	if (res)
> -		return error_errno(_("could not write '%s'."), todo_file);
> -	return 0;
> -}
> -
>  static void todo_list_to_strbuf(struct repository *r, struct todo_list *todo_list,
>  				struct strbuf *buf, int num, unsigned flags)
>  {
> @@ -4649,29 +4625,6 @@ int todo_list_write_to_file(struct repository *r, struct todo_list *todo_list,
>  	return res;
>  }
>  
> -int transform_todo_file(struct repository *r, unsigned flags)
> -{
> -	const char *todo_file = rebase_path_todo();
> -	struct todo_list todo_list = TODO_LIST_INIT;
> -	int res;
> -
> -	if (strbuf_read_file(&todo_list.buf, todo_file, 0) < 0)
> -		return error_errno(_("could not read '%s'."), todo_file);
> -
> -	if (todo_list_parse_insn_buffer(r, todo_list.buf.buf, &todo_list)) {
> -		todo_list_release(&todo_list);
> -		return error(_("unusable todo list: '%s'"), todo_file);
> -	}
> -
> -	res = todo_list_write_to_file(r, &todo_list, todo_file,
> -				      NULL, NULL, -1, flags);
> -	todo_list_release(&todo_list);
> -
> -	if (res)
> -		return error_errno(_("could not write '%s'."), todo_file);
> -	return 0;
> -}
> -
>  static const char edit_todo_list_advice[] =
>  N_("You can fix this with 'git rebase --edit-todo' "
>  "and then run 'git rebase --continue'.\n"
> @@ -4754,8 +4707,6 @@ static int skip_unnecessary_picks(struct repository *r,
>  	return 0;
>  }
>  
> -static int todo_list_rearrange_squash(struct todo_list *todo_list);
> -
>  int complete_action(struct repository *r, struct replay_opts *opts, unsigned flags,
>  		    const char *shortrevisions, const char *onto_name,
>  		    const char *onto, const char *orig_head, struct string_list *commands,
> @@ -4862,7 +4813,7 @@ define_commit_slab(commit_todo_item, struct todo_item *);
>   * message will have to be retrieved from the commit (as the oneline in the
>   * script cannot be trusted) in order to normalize the autosquash arrangement.
>   */
> -static int todo_list_rearrange_squash(struct todo_list *todo_list)
> +int todo_list_rearrange_squash(struct todo_list *todo_list)
>  {
>  	struct hashmap subject2item;
>  	int rearranged = 0, *next, *tail, i, nr = 0, alloc = 0;
> @@ -5000,27 +4951,3 @@ static int todo_list_rearrange_squash(struct todo_list *todo_list)
>  
>  	return 0;
>  }
> -
> -int rearrange_squash_in_todo_file(struct repository *r)
> -{
> -	const char *todo_file = rebase_path_todo();
> -	struct todo_list todo_list = TODO_LIST_INIT;
> -	int res = 0;
> -
> -	if (strbuf_read_file_or_whine(&todo_list.buf, todo_file) < 0)
> -		return -1;
> -	if (todo_list_parse_insn_buffer(r, todo_list.buf.buf, &todo_list) < 0) {
> -		todo_list_release(&todo_list);
> -		return -1;
> -	}
> -
> -	res = todo_list_rearrange_squash(&todo_list);
> -	if (!res)
> -		res = todo_list_write_to_file(r, &todo_list, todo_file, NULL, NULL, -1, 0);
> -
> -	todo_list_release(&todo_list);
> -
> -	if (res)
> -		return error_errno(_("could not write '%s'."), todo_file);
> -	return 0;
> -}
> diff --git a/sequencer.h b/sequencer.h
> index b0688ba2a1..7cca49eff2 100644
> --- a/sequencer.h
> +++ b/sequencer.h
> @@ -143,15 +143,14 @@ int sequencer_remove_state(struct replay_opts *opts);
>  int sequencer_make_script(struct repository *r, struct strbuf *out, int argc,
>  			  const char **argv, unsigned flags);
>  
> -int sequencer_add_exec_commands(struct repository *r,
> -				struct string_list *commands);
> -int transform_todo_file(struct repository *r, unsigned flags);
> +void todo_list_add_exec_commands(struct todo_list *todo_list,
> +				 struct string_list *commands);
>  int check_todo_list_from_file(struct repository *r);
>  int complete_action(struct repository *r, struct replay_opts *opts, unsigned flags,
>  		    const char *shortrevisions, const char *onto_name,
>  		    const char *onto, const char *orig_head, struct string_list *commands,
>  		    unsigned autosquash, struct todo_list *todo_list);
> -int rearrange_squash_in_todo_file(struct repository *r);
> +int todo_list_rearrange_squash(struct todo_list *todo_list);
>  
>  extern const char sign_off_header[];
>  
>