TYPO3 Git Commit Splitter

cherry-split.sh

#!/bin/sh

###
# TYPO3 Git Cherry-Picked Commit Splitter ("Cherry-Split")
# @author Oliver Hader <[email protected]>
# @license GPL v2 on any later version
#
# Usage
# - cherry-pick change to local Git working copy
# - execute this script `./cherry-split.sh` which processed the tip commit
# - generates files per hash and extension, e.g. `abcd1234-frontend.patch`
##

TYPO3_PREFIX='typo3/sysext/'
LOG=$(git log --oneline -1)
FILES=$(git diff HEAD^ --name-only)
COMMIT=$(git rev-parse --short HEAD)

EXTENSIONS=''
for file in ${FILES}; do
  if [[ $file =~ ^${TYPO3_PREFIX} ]]; then
    ext=$(cut -d/ -f3 <<< ${file})
    if [[ "${EXTENSIONS}" == "" ]]; then
      EXTENSIONS=${ext}
    else
      EXTENSIONS=$(echo -e "${EXTENSIONS}\n${ext}" | sort -u)
    fi
  fi
done

cat <<< ${LOG}
echo
echo -e "Commit (used as output file prefix):\n${COMMIT}"
echo
echo "Files:"
cat <<< "${FILES}"
echo
echo "Extensions:"
cat <<< "${EXTENSIONS}"
echo
read -p 'Continue (y/n)? ' result

case "$result" in
  y|Y ) ;;
  *   ) exit 1;;
esac

for ext in ${EXTENSIONS}; do
  path="${TYPO3_PREFIX}${ext}/"
  file="${COMMIT}-${ext}.patch"
  git diff HEAD^ --relative="${path}" -- :^${path}Tests/ > ${file}
  if [ -s "${file}" ]; then
    echo "+ ${file}"
  else
    rm ${file}
  fi
done