Bash helper for committing with a co-author when pairing, with fuzzy matching for names

git-commit-with.sh

# usage: git-commit-with jane "adding the thing" --amend

match(){
  echo "$2" | grep -q "$1"
}

commit-info () {
  if   match $1 john;   then echo "John Smith <[email protected]>"
  elif match $1 jane;   then echo "Jane Doe <[email protected]>"
  else
    echo "No match!"
    return 1
  fi
}

git-commit-with () {
  USAGE="Usage: git-commit-with <person> <message> <opts>"
  PERSON="$(commit-info $1)"

  if [[ ! "$1" || ! "$2"  ]]; then
    echo "Something's missing"
    echo $USAGE
    return 1
  elif [[ "$PERSON" == "No match!" ]]; then
    echo "Couldn't match $1 - you may need to add them to commit-info"
    return 1
  elif [[ "$1" == "help" ]]; then
    echo $USAGE
    return 1
  fi

  MESSAGE=$2
  OPTS=$3
  FULL_BODY=$(echo -e "$MESSAGE\n\n\nCo-authored-by: $PERSON")

  git commit $OPTS -m $FULL_BODY
}