Re: [PATCH] git-mv: search more precisely for source directory in index

> 
> A move of a directory should find the entries in the index by
> searching for the name _including_ the slash. Otherwise, the
> directory can be shadowed by a file when it matches the prefix
> and is lexicographically smaller, e.g. "ab.c" shadows "ab/".

> Noticed by Sergey Vlasov.
> 
> Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
> ---
> 
> 	Good catch. Thanks!
> 
>  builtin-mv.c |   11 +++++++----
>  1 files changed, 7 insertions(+), 4 deletions(-)
> 
> diff --git a/builtin-mv.c b/builtin-mv.c
> index 54dd3bf..d14a4a7 100644
> --- a/builtin-mv.c
> +++ b/builtin-mv.c
> @@ -146,21 +146,24 @@ int cmd_mv(int argc, const char **argv, const char *prefix)
>  				&& lstat(dst, &st) == 0)
>  			bad = "cannot move directory over file";
>  		else if (src_is_dir) {
> +			const char *src_w_slash = add_slash(src);
> +			int len_w_slash = length + 1;
>  			int first, last;
>  
>  			modes[i] = WORKING_DIRECTORY;
>  
> -			first = cache_name_pos(src, length);
> +			first = cache_name_pos(src_w_slash, len_w_slash);
>  			if (first >= 0)
> -				die ("Huh? %s/ is in index?", src);
> +				die ("Huh? %.*s is in index?",
> +						len_w_slash, src_w_slash);
>  
>  			first = -1 - first;
>  			for (last = first; last < active_nr; last++) {
>  				const char *path = active_cache[last]->name;
> -				if (strncmp(path, src, length)
> -						|| path[length] != '/')
> +				if (strncmp(path, src_w_slash, len_w_slash))
>  					break;
>  			}
> +			free((char *)src_w_slash);
>  
>  			if (last - first < 1)
>  				bad = "source directory is empty";