Export multiple patches

export-git-patches.sh

#
# exports multiple patches for a commit-range
# you can choose to select only commits matching a specific sub_dir
#
# usage: export-git-patches [commit_range] [sub_dir]
#

if [ $# -gt 1 ]; then
  commit_range=$1
  commit_path="$2"
  echo 1
else
  commit_range=$1
fi

# check if commit_range is empty
if [ -z "$commit_range" ] ; then
  commit_range=HEAD
fi



n=0
git rev-list --reverse $commit_range -- $commit_path | while IFS=$'\n' read -r commit_hash
do
  n=$((n+1))
  # export one patchfile for each line
  git format-patch --start-number=$n -1 $commit_hash
done