#!/usr/bin/env bash
# reset environment variables that could interfere with normal usage
export GREP_OPTIONS=
# put all utility functions here

# make a temporary file
git_extra_mktemp() {
    mktemp -t "$(basename "$0")".XXXXXXX
}

git_extra_default_branch() {
    local default_branch
    default_branch=$(git config --get git-extras.default-branch)
    if [ -z "$default_branch" ]; then
        echo "master"
    else
        echo "$default_branch"
    fi
}
#
# check whether current directory is inside a git repository
#

is_git_repo() {
  git rev-parse --show-toplevel > /dev/null 2>&1
  result=$?
  if test $result != 0; then
    >&2 echo 'Not a git repo!'
    exit $result
  fi
}

is_git_repo

git_root() {
  git rev-parse --show-toplevel
}

# get the relative path of current path according to root of repo
git_root_relative() {
    git rev-parse --show-prefix
}

if test $# -eq 0; then
    git_root
else
    case "$1" in
    -r|--relative)
        git_root_relative
        ;;
    *)
        git_root
        ;;
    esac
fi

