#!/bin/bash

CACHE_DIR=${CACHE_DIR:-~/.cache/calp}
RELEASE=2020a
TZ_SRC="https://github.com/eggert/tz/archive/$RELEASE.tar.gz"

mkdir -p $CACHE_DIR
cd $CACHE_DIR

test -f "$RELEASE.tar.gz" || curl -sOL $TZ_SRC
test -d "tz-$RELEASE" || tar xzf "$RELEASE.tar.gz"
cd "tz-$RELEASE"

tzpath=$(pwd)

size=$(stat -c "%s" Makefile)

cat >> Makefile << EOF
.PHONY: print-tdata
print-tdata:
	@echo \$(TDATA_TO_CHECK)
EOF
files=$(make print-tdata)

truncate -cs $size Makefile

echo $tzpath
echo $files