Re: [O] [BUG] bug in org-publish and a (wrong) patch

[Carsten Dominik]

Hi Nick,

I have not looked closely, but maybe you can use


(expand-file-name  .... (file-name-directory filename))

to fix this patch?  Not sure, I have not spent any time on it.

- Carsten

On Apr 7, 2011, at 7:11 AM, Nick Dokos wrote:

> org-publish-cache-ctime-of-src tries (but does not always succeed) to
> deal with symlinks: file-symlink-p returns the target as a string, but
> if the target is relative to the symlink, that's not going to fly.
> e.g. if c is a symlink like this
> 
>    /a/b/c->../d/f
> 
> then (file-symlink-p "/a/b/c") -> "../d/f"
> but if the current directory is any place other than /a/b, the target
> will not be found, the file attributes are going to be nil and
> the function will blow up.
> 
> Here is a patch born of about 5 mins of contemplation. It solved my
> immediate problem but it is certainly wrong. It breaks absolute targets
> (which I think are handled correctly by the original version). I'm not
> even sure that it correctly handles *all* relative targets. It also
> needs to treat the case of a non-existent symlink target (where
> file-symlink-p returns t).
> 
> It might be safer also to check if the file attributes are
> nil and deal with that, instead of blowing up.
> 
> --8<---------------cut here---------------start------------->8---
> diff --git a/lisp/org-publish.el b/lisp/org-publish.el
> index e944eea..dd192d6 100644
> --- a/lisp/org-publish.el
> +++ b/lisp/org-publish.el
> @@ -1150,7 +1150,7 @@ Returns value on success, else nil."
> (defun org-publish-cache-ctime-of-src (filename)
>   "Get the FILENAME ctime as an integer."
>   (let ((src-attr (file-attributes (if (stringp (file-symlink-p filename))
> -                                    (file-symlink-p filename)
> +                                    (concat (file-name-directory filename) 
> (file-symlink-p filename))
>                                    filename))))
>     (+
>      (lsh (car (nth 5 src-attr)) 16)
> --8<---------------cut here---------------end--------------->8---
> 
> Nick
> 

- Carsten