git_prune_empty_commit.sh

#!/bin/bash

# git rev-list HEAD | while read commitHash; do
#   if [ $(git diff-tree --name-status --no-commit-id $commitHash | wc -l) -eq 0 ]; then
#     echo $commitHash
#   fi;
# done


export FILTER_BRANCH_SQUELCH_WARNING=1
export folder=$1


git -C $folder filter-branch --commit-filter 'git_commit_non_empty_tree "$@"' -f HEAD
rm -rf $folder/.git/refs/original/ && git -C $folder reflog expire --all &&  git -C $folder gc --aggressive --prune


git -C $folder rm -r --cached .

git -C $folder add .
git -C $folder commit -m "purge empty commit"
git -C $folder push gitea --force
git -C $folder push github --force