Maintaining an html branch

Hello,

I would like to maintain an html branch for my repo, containing files under my '_site/' dir that is not version controlled.

Below is a first draft that works, but as I am not really familiar with git plumbing, I'd appreciate any comments on a better way or style to to write it.

#!bash jekyll --no-auto # build the static website on _site/ dir rm .git/html.index export GIT_INDEX_FILE=.git/html.index git add -f _site tree_id=$(git write-tree --prefix=_site/) new_commit=$(echo "New website"|git commit-tree $tree_id -p html) git update-ref html $new_commit rm .git/html.index

Thanks, Chris