#!/bin/bash

set -e

usage() {
    echo "usage: dcp-recent REPODIR"
}

rungit() {
    (
	cd "$repodir"
	git "$@"
    ) || false
}

if [ $# -lt 1 ]; then
    usage >&2
    exit 1
fi

repodir="$1"
shift

if [ ! -d "$repodir" ]; then
    echo "dcp-recent: cannot find $repodir" >&2
    exit 1
fi

if ! rungit tag -l | grep -q ^lastbuild$; then
    exit 1
fi

lastbuild="$(rungit rev-parse lastbuild)"
master="$(rungit rev-parse master)"

[ "$master" = "$lastbuild" ]