Re: t7400 broken on pu (Mac OS X)

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Duy Nguyen <pclouds@xxxxxxxxx> writes:

> On Wed, Jan 09, 2013 at 07:43:03PM +0100, Torsten Bögershausen wrote:
>> The current pu fails on Mac OS, case insensitive FS.
>> 
>> 
>> Bisecting points out
>> commit 3f28e4fafc046284657945798d71c57608bee479
>> [snip]
>> Date:   Sun Jan 6 13:21:07 2013 +0700
>> 
>>     Convert add_files_to_cache to take struct pathspec
>> 
>
> I can reproduce it by setting core.ignorecase to true. There is a bug
> that I overlooked. Can you verify if this throw-away patch fixes it
> for you? A proper fix will be in the reroll later.

I can see why it is wrong to let pathspec.raw be rewritten without
making matching change to the containing pathspec, but I find it
strange why it matters only on case-insensitive codepath.

I agree with the "Hack" comment that the canonicalization should be
done at a higher level upfront.  Then ls-files does not need its own
strip_trailing_slash_from_submodules(), and check_path_for_gitlink()
can (and should---the callers of "check_anything" would not expect
the function to change things) stop rewriting its parameter.

Thanks for a quick response.

> -- 8< --
> diff --git a/builtin/add.c b/builtin/add.c
> index 641037f..61cb8bd 100644
> --- a/builtin/add.c
> +++ b/builtin/add.c
> @@ -155,12 +155,13 @@ static char *prune_directory(struct dir_struct *dir, const char **pathspec, int
>  	return seen;
>  }
>  
> -static void treat_gitlinks(const char **pathspec)
> +static int treat_gitlinks(const char **pathspec)
>  {
>  	int i;
> +	int modified = 0;
>  
>  	if (!pathspec || !*pathspec)
> -		return;
> +		return modified;
>  
>  	for (i = 0; i < active_nr; i++) {
>  		struct cache_entry *ce = active_cache[i];
> @@ -171,15 +172,17 @@ static void treat_gitlinks(const char **pathspec)
>  				if (len2 <= len || pathspec[j][len] != '/' ||
>  				    memcmp(ce->name, pathspec[j], len))
>  					continue;
> -				if (len2 == len + 1)
> +				if (len2 == len + 1) {
>  					/* strip trailing slash */
>  					pathspec[j] = xstrndup(ce->name, len);
> -				else
> +					modified = 1;
> +				} else
>  					die (_("Path '%s' is in submodule '%.*s'"),
>  						pathspec[j], len, ce->name);
>  			}
>  		}
>  	}
> +	return modified;
>  }
>  
>  static void refresh(int verbose, const struct pathspec *pathspec)
> @@ -418,7 +421,16 @@ int cmd_add(int argc, const char **argv, const char *prefix)
>  
>  	if (read_cache() < 0)
>  		die(_("index file corrupt"));
> -	treat_gitlinks(pathspec.raw);
> +	if (treat_gitlinks(pathspec.raw))
> +		/*
> +		 * HACK: treat_gitlinks strips the trailing slashes
> +		 * out of submodule entries but it only affects
> +		 * raw[]. Everything in pathspec.items is not touched.
> +		 * Re-init it to propagate the change. Long term, this
> +		 * function should be moved to pathspec.c and update
> +		 * everything in a consistent way.
> +		 */
> +		init_pathspec(&pathspec, pathspec.raw);
>  
>  	if (add_new_files) {
>  		int baselen;
> -- 8< --
--
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