#!/usr/bin/env bash

COMMIT_MESSAGE='Initial commit'

if [ "$1" == "-m" ]; then
    COMMIT_MESSAGE=$2
    shift; shift
fi

gitdirexists(){
    if [ -d ".git" ]; then
        echo ".git directory already exists, aborting"
        exit 1
    fi
}

dir=$(test -z "$*" && echo "." || echo "$*")
mkdir -p "$dir" \
  && cd "$dir" \
  && gitdirexists \
  && git init \
  && git add . \
  && git commit --allow-empty -m "$COMMIT_MESSAGE"