Re: [PATCH 13/22] sequencer: remember the onelines when parsing the todo file

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W dniu 29.08.2016 o 10:05, Johannes Schindelin pisze:

> The `git-rebase-todo` file contains a list of commands. Most of those
> commands have the form
> 
> 	<verb> <sha1> <oneline>
> 
> The <oneline> is displayed primarily for the user's convenience, as
> rebase -i really interprets only the <verb> <sha1> part. However, there
> are *some* places in interactive rebase where the <oneline> is used to
> display messages, e.g. for reporting at which commit we stopped.
> 
> So let's just remember it when parsing the todo file; we keep a copy of
> the entire todo file anyway (to write out the new `done` and
> `git-rebase-todo` file just before processing each command), so all we
> need to do is remember the begin and end offsets.

Actually what we remember is pointer and length, or begin offset and length,
not offset and offset.

> 
> Signed-off-by: Johannes Schindelin <johannes.schindelin@xxxxxx>

Nice, I'll see how it is used later (and in which commit in series).

> ---
>  sequencer.c | 7 +++++++
>  1 file changed, 7 insertions(+)
> 
> diff --git a/sequencer.c b/sequencer.c
> index 06759d4..3398774 100644
> --- a/sequencer.c
> +++ b/sequencer.c
> @@ -709,6 +709,8 @@ static int read_and_refresh_cache(struct replay_opts *opts)
>  struct todo_item {
>  	enum todo_command command;
>  	struct commit *commit;
> +	const char *arg;
> +	int arg_len;

Why 'arg', and not 'oneline', or 'subject'?
I'm not saying it is bad name.

>  	size_t offset_in_buf;
>  };
>  
> @@ -760,6 +762,9 @@ static int parse_insn_line(struct todo_item *item, const char *bol, char *eol)
>  	status = get_sha1(bol, commit_sha1);
>  	*end_of_object_name = saved;
>  
> +	item->arg = end_of_object_name + strspn(end_of_object_name, " \t");
> +	item->arg_len = (int)(eol - item->arg);
> +

Does it work correctly for line without <oneline>, that is

  	<verb> <sha1>

I think it does, but I not entirely sure.

>  	if (status < 0)
>  		return -1;
>  
> @@ -880,6 +885,8 @@ static int walk_revs_populate_todo(struct todo_list *todo_list,
>  
>  		item->command = command;
>  		item->commit = commit;
> +		item->arg = NULL;
> +		item->arg_len = 0;
>  		item->offset_in_buf = todo_list->buf.len;
>  		subject_len = find_commit_subject(commit_buffer, &subject);
>  		strbuf_addf(&todo_list->buf, "%s %s %.*s\n",
> 




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