#!/usr/bin/env bash

if which tput >/dev/null 2>&1; then
    ncolors=$(tput colors)
fi
if [ -t 1 ] && [ -n "$ncolors" ] && [ "$ncolors" -ge 8 ]; then
    RED="$(tput setaf 1)"
    GREEN="$(tput setaf 2)"
    YELLOW="$(tput setaf 3)"
    BLUE="$(tput setaf 4)"
    MAGENTA="$(tput setaf 5)"
    CYAN="$(tput setaf 6)"
    BOLD="$(tput bold)"
    NORMAL="$(tput sgr0)"
else
    RED=""
    GREEN=""
    YELLOW=""
    BLUE=""
    MAGENTA=""
    CYAN=""
    BOLD=""
    NORMAL=""
fi

error() {
    printf "${BOLD}${RED}$1${NORMAL}\n"
}

set -e

repo_path="$1"
output_path="$2"

if [[ $repo_path == "" || $output_path == "" ]]; then
    error "Missing args: <svn repo path> <output path>"
    exit 1
fi

if [[ ! -d $repo_path ]]; then
    error "Repo directory '$repo_path' doesn't exist."
    exit 1
fi

mkdir -p $output_path

now=$(echo $(date '+%Y-%m-%d-%H-%M-%S'))
backup_path="$output_path/${now}_jellypixel_repos.dump.gz"

printf "${BOLD}${YELLOW}Backing up '$repo_path' to '$backup_path'\n"
printf "Proceed? (1|y)\n> ${NORMAL}"

read -e proceed
if [[ ! ($proceed == "1" || $proceed == "y") ]]; then
    exit 1
fi

svnadmin.exe dump $repo_path | gzip -9 > $backup_path