#!/usr/bin/env bash

function error_handler() {
  >&2 echo "Exited with BAD EXIT CODE '${2}' in ${0} script at line: ${1}."
  exit "$2"
}
trap 'error_handler ${LINENO} $?' ERR
set -o errtrace -o errexit -o nounset -o pipefail

# HELP: git adds and commits the entire BPMN models directory, including all process groups

bpmn_models_absolute_dir="$1"
git_commit_message="$2"
git_commit_username="$3"
git_commit_email="$4"

if [[ -z "${2:-}" ]]; then
  >&2 echo "usage: $(basename "$0") [bpmn_models_absolute_dir] [git_commit_message]"
  exit 1
fi

cd "$bpmn_models_absolute_dir"
git add .

# https://unix.stackexchange.com/a/155077/456630
if [ -z "$(git status --porcelain)" ]; then
  echo "No changes to commit"
else
  if [[ -n "$git_commit_username" ]]; then
    git config --local user.name "$git_commit_username"
  fi
  if [[ -n "$git_commit_email" ]]; then
    git config --local user.email "$git_commit_email"
  fi
  git commit -m "$git_commit_message"
fi