auto export via git hook

[andrea crotti <andrea.crotti.0@gmail.com>]

I want to automatically export to html or something else in my pre- 
commit hook with git, I tried many things but I always get the same 
error 

mbpro:rt-simulate andrea$ cat .git/hooks/pre-commit.bak 
emacs --batch --load=$HOME/.emacs.d/org-mode/org.el --eval "(setq org- 
export-headline-levels 2)" --visit=README.org --funcall org-export-as- 
html-batch 

mbpro:rt-simulate andrea$ sh .git/hooks/pre-commit.bak 
Cannot open load file: org-macs 
org-macs is a library which is situated ~/.emacs.d/org-mode which 
should be automatically in the load path (not using --quiet), so what 
could be the problem? 

Thanks again