#!/bin/bash
DIR="$(readlink -f ${0%/*}/..)"

if [ -d $DIR/.svn ]; then
	RB="$(LC_ALL=C svn info $DIR | sed -n 's/^Relative URL: .*\///p')"
	RC="$(svnversion $DIR | tr ":" "_")"
	[ "${RB}" != "trunk" -a "${RC}" == "${RC/_/}" -a "$1" ] && RC="$(LC_ALL=C svn info $DIR | sed -n 's/^Last Changed Rev: //p')"
	[ "${RB}" != "trunk" -o "${RC}" != "${RC/_/}" -o "$1" ] && [ "$(svn status $DIR | wc -l)" != "0" ] && RC="${RC%M}M"
	RH="$(svn log $DIR -l9 | sed -n 's/^commit [0-9a-z]* -- https:\/\/github\.com\/freetz-ng\/freetz-ng\/commit\///p' | head -n1)"
	[ "$1" ] && RB="${RB/trunk/}" || RD="$(LC_ALL=C svn info $DIR | sed -rn 's/^Last Changed Date: ([^ ]*).*/\1/p')"
elif [ -d $DIR/.git ]; then
	GDB="$DIR/.git"
	RB="$(git --git-dir=$GDB rev-parse --abbrev-ref @)"
	RM="M"
	if ! git --git-dir=$GDB ls-files --other --directory --exclude-standard | read; then          # not added files
	if ! git --git-dir=$GDB --no-optional-locks status -uno --porcelain 2>/dev/null | read; then  # not commited files
	if [ "$(git --git-dir=$GDB rev-list --count HEAD ^@{upstream} 2>/dev/null)" == "0" ]; then    # not pushed commits
		RM=""                                                                                 # what a good boy
	fi
	fi
	fi
	[ "$RB" == "HEAD" -o "$RB" == "master" ] && RC="$(( $(git --git-dir=$GDB rev-list --no-merges --count HEAD) +10#0$(cat $DIR/.revdiff) ))${RM}"
	[ "$RB" == "HEAD" ] && RB="$(git --git-dir=$GDB describe --tags --abbrev=0)" && RC="${RC%$RM}"
	RH="$(git --git-dir=$GDB rev-parse --verify --short @)"
	[ "$1" ] && RB="${RB/master/}" || RD="$(git --git-dir=$GDB log --pretty='format:%cd' --date=format:'%Y-%m-%d' -1 @)"
fi
R=" ${RC:+$RC-}${RH:-UNKNOWN}${RB:+ $RB}${RD:+ $RD}"
[ "$1" ] && R="${R// /-}"
echo "$(cat $DIR/.version)${R}"