[PATCH 07/16] Guess the default branch based on current namespace

[Jason at zx2c4.com (Jason A. Donenfeld)]

On Sat, Jul 16, 2016 at 12:59 AM, Richard Maw <richard.maw at gmail.com> wrote:
> -
> -       ref = resolve_ref_unsafe("HEAD", 0, sha1, NULL);
> -       if (!ref || !starts_with(ref, "refs/heads/"))
> +       char *namespaced_head = NULL;
> +
> +       if (get_git_namespace())
> +               namespaced_head = mkpathdup("%sHEAD", get_git_namespace());
> +       /* NOTE: RESOLVE_REF_NO_RECURSE is required to prevent it resolving HEAD
> +          into a ref outside of the namespace. */
> +       ref = resolve_ref_unsafe(namespaced_head ?: "HEAD", RESOLVE_REF_NO_RECURSE, sha1, NULL);

Except now, for the non-namespaced case, we don't recurse on symbolic
entries, which might not be desirable.

Rather than this, would it be possible to make the underlying upstream
function namespace aware? By the environment variable perhaps?

> +       free(namespaced_head);
> +       if (!ref || !starts_with(strip_namespace(ref), "refs/heads/"))
>                 return "master";
> -       return xstrdup(ref + 11);
> +       return xstrdup(strip_namespace(ref) + 11);
>  }
>  /* The caller must free filename and ref after calling this. */
>  static inline void parse_readme(const char *readme, char **filename, char **ref, struct cgit_repo *repo)