Re: [PATCH] fast-import: catch garbage after marks in from/merge

[Jonathan Nieder <jrnieder@gmail.com>]

Hi Pete,

Pete Wyckoff wrote:

>     from :1M 100644 :103 hello.c
>
> It is missing a newline and should be:
>
>     from :1
>     M 100644 :103 hello.c

Good idea; thanks.

I agree that this at least deserves a warning and probably should
error out.

[...]
> --- a/fast-import.c
> +++ b/fast-import.c
> @@ -2537,8 +2537,16 @@ static int parse_from(struct branch *b)
>  		hashcpy(b->branch_tree.versions[0].sha1, t);
>  		hashcpy(b->branch_tree.versions[1].sha1, t);
>  	} else if (*from == ':') {
> -		uintmax_t idnum = strtoumax(from + 1, NULL, 10);
> -		struct object_entry *oe = find_mark(idnum);
> +		char *eptr;
> +		uintmax_t idnum = strtoumax(from + 1, &eptr, 10);
> +		struct object_entry *oe;
> +		if (eptr) {
> +			for (; *eptr && isspace(*eptr); eptr++) ;
> +			if (*eptr)
> +				die("Garbage after mark: %s",

The implementation seems more complicated than it needs to be.  Why
allow whitespace after the mark number?

Curious,
Jonathan