#!/usr/bin/env bash
# Use: ./build-and-minimize.bash

# Makes a docker image, saves it as .tar, unpacks the tar, removes
# the base Debian layer, and repacks it so I can upload to servers a little
# faster.

TEMP_GIBBERISH="ptth_build_L6KLMVS6"
TEMP_TAR="$TEMP_GIBBERISH/ptth.tar"
UPLOADABLE_TAR="$PWD/ptth_latest.tar.gz"

# This is magic and will need to be updated whenever we update the
# Debian layer.

BOTTOM_LAYER="cec906613726ec32de92af0ec1cd6692c34df78782227f4415cd12c47a264dd4"

mkdir -p "$TEMP_GIBBERISH/ptth"

sudo docker build -t ptth:latest .
sudo docker image save ptth:latest | pv > "$TEMP_TAR"
tar -C "$TEMP_GIBBERISH/ptth" -xf "$TEMP_TAR"

rm -rf "$TEMP_GIBBERISH/ptth/$BOTTOM_LAYER"

pushd "$TEMP_GIBBERISH/ptth"
	tar -czf "$UPLOADABLE_TAR" .
popd