pre-commit-format-apply

#!/bin/sh
# this pre-commit hook will automatically format.
# from https://medium.com/@mmessell/apply-spotless-formatting-with-git-pre-commit-hook-1c484ea68c34
#
# you can install this hook easily via ./gradlew installPreCommitGitFormattingHook

echo '[git hook] executing gradle spotlessApply and format before commit'

# find the changed files to be commited
stagedFiles=$(git diff --staged --name-only)

# run the spotlessApply and formats tasks with the gradle wrapper
./gradlew spotlessApply format

# add the reformatted files (and only the ones committed before, ignore other reformatting)
for file in $stagedFiles; do
  if test -f "$file"; then
    git add $file
  fi
done