#!/bin/sh
#
# A hook script that detects and handles file additions requiring LFS.
# TODO: test addition of a new, sub-100M version of some earlier LFS file.

# identify versioned files (additions AND prior commits) that exceed 100M
lfs=`find $(git ls-files) -size +100M -exec \
     echo {} filter=lfs diff=lfs merge=lfs -text \;`

if [ ! -z "$lfs" ]; then

    # create or overwrite .gitattributes file and add it to version control
    echo "# auto-generated by pre-commit hook" > .gitattributes
    echo "$lfs" >> .gitattributes
    git add .gitattributes

    # renormalize (reset and add again) all identified files
    find $(git ls-files) -size +100M -exec git add --renormalize {} \;
fi