#!/bin/bash
# 
# Clone repository from mirror - recursively with submodules
#
# Usage:
#  sclone <main repo url> [ -p <path> ] [ -c <checkout_ref> 

# strict mode
set -euo pipefail
IFS=$'\n\t'

# Scratch - temp
tmpdir=$(mktemp -d -t mirror-recursive-XXXXXXX)
function finish {
	rm -rf "$tmpdir"
}
trap finish EXIT

# include config
source $(dirname $(realpath $0))/config
source $(dirname $(realpath $0))/gen-mirror-path

# parse arguments
function usage(){
	echo "Usage: $0 [-p <path>] [-c <checkout_ref>]" 1>&2
	exit 1
}

[ $# -eq 0 ] && usage

repo=$1


# clone the repo
cclone $@ || true
# skip url
shift

# parse opts
while getopts "c:p:" o; do
	case "${o}" in
		c)
			param_c=${OPTARG}
			;;
		p)
			param_p=${OPTARG}
			;;
		\?)
			usage
			;;
	esac
done

# change dir and examine the commit + submodules
oldpwd=$(pwd)
submodules=$tmpdir/submodules
cd ${param_p:-$(getRepoUniq $repo)}
submodule-describe . > $submodules

while read -r line || [[ -n "$line" ]]
do
	# read -r retypes \t to ' ' (space)
	commit=$(echo $line | cut -f1 -d' ')
	directory=$(echo $line | cut -f2 -d' ')
	url=$(echo $line | cut -f3 -d' ')
	# recursion ++
	sclone $url -p $directory -c $commit
done < $submodules	



cd $oldpwd