Re: [PATCH v3 2/3] Allow help.htmlpath to be a URL prefix

> Setting this to a URL prefix instead of a path to a local directory allows
> git-help --web to work even when HTML docs aren't locally installed, by
> pointing the browser at a copy accessible on the web. For example,
>
>     [help]
>       format = html
>       htmlpath = http://git-scm.com/docs
>
> will use the publicly available documentation on the git homepage.
>
> Signed-off-by: Chris Webb <chris@arachsys.com>
> ---
>  builtin/help.c |    8 +++++---
>  1 file changed, 5 insertions(+), 3 deletions(-)
>
> diff --git a/builtin/help.c b/builtin/help.c
> index b467db2..92f2349 100644
> --- a/builtin/help.c
> +++ b/builtin/help.c
> @@ -399,9 +399,11 @@ static void get_html_page_path(struct strbuf *page_path, const char *page)
>  		html_path = system_path(GIT_HTML_PATH);
>  
>  	/* Check that we have a git documentation directory. */
> -	if (stat(mkpath("%s/git.html", html_path), &st)
> -	    || !S_ISREG(st.st_mode))
> -		die(_("'%s': not a documentation directory."), html_path);
> +	if (!strstr(html_path, "://")) {
> +		if (stat(mkpath("%s/git.html", html_path), &st)
> +				|| !S_ISREG(st.st_mode))
> +			die("'%s': not a documentation directory.", html_path);
> +	}
>  
>  	strbuf_init(page_path, 0);
>  	strbuf_addf(page_path, "%s/%s.html", html_path, page);