Usage: cd repositories; rung -c "git branch" -d "./"

run-git-on-all-folders.sh

run-git-on-all-folders() {
  arg_d=$(pwd);
  arg_c="git branch --show-current";
  arg_a=0;
  VERBOSE=0;

  verb_echo() {
    if [ $VERBOSE -eq 1 ]; then
      echo "> $*"
    fi
  }

  while getopts ":d:c:av" o; do
    # echo "#$OPTIND: -$o = '$OPTARG'";

    case "${o}" in
    d)
      arg_d=${OPTARG}
      verb_echo "received root directory to run from via argument: '$arg_d'";
      ;;
    c)
      arg_c=${OPTARG}
      verb_echo "received command via argument: '$arg_c'";
      ;;
    a)
      arg_a=1;
      verb_echo "will list hidden files too";
      ;;
    v)
      VERBOSE=1
      verb_echo "verbose mode on";
      ;;
    *)
      unk_arg=${OPTARG}
      verb_echo "unknown argument '$unk_arg', printing usage and exiting";
      echo "Usage: run-git-on-all-folders [-d DIR='.'] [-c COMMAND='git branch --show-current'] [-a] [-v]" 1>&2
      exit 1
      ;;
    esac
  done
  # shift $((OPTIND - 1))

  if [[ ! -d "$arg_d" ]]; then
    echo "Fatal: not a directory: '${arg_d}'"
    exit 1
  fi

  (
    verb_echo "changing directory to '$arg_d'";
    cd $arg_d;

    paths=(*);
    if [ $arg_a ]; then paths=(* .*); fi
    verb_echo "paths=(${paths[@]})";
    
    for folder in "${paths[@]}"; do
      if [ -d "$folder" ]; then
        if [ -d "$folder/.git" ]; then
          verb_echo "$folder - is a GIT FOLDER, proceeding";
          (
            cd "$folder";
            res=$(eval "$arg_c");
            cd - >/dev/null;

            str=""
            str+="\033[34m"
            str+="⯈ $folder "
            str+="\033[0m"

            str+="\033[36m"
            str+="("
            str+="\033[0m"

            if [ ! -z $res ]; then
              if echo "$res" | sed 1d | grep -q .; then
                str+="\n$res\n"
              else
                str+=" $res "
              fi
            fi

            str+="\033[36m"
            str+=")"
            str+="\033[0m"
            echo $str;
          )
        else
          verb_echo "$folder - is a FOLDER, has no GIT";
        fi
      else
        verb_echo "$folder - is NOT a FOLDER"
      fi
    done
  );
  
  verb_echo "completed";
}

alias rung="run-git-on-all-folders"