build.sh


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#!/bin/bash
# build.sh: build the debug APK in a throwaway Docker container, or run the
# JVM unit tests with "./build.sh test". Nothing is installed on the host.
# Output: app/build/outputs/apk/debug/mygram-droid-debug.apk
#
# Copyright (C) 2026 Danilo M. <danix@danix.xyz>
#
# This program is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License version 2 as published
# by the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
# or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
# for more details.

set -euo pipefail
cd "$(dirname "$0")"

task=assembleDebug
[ "${1:-}" = test ] && task=testDebugUnitTest

docker image inspect mygram-droid-build >/dev/null 2>&1 ||
	docker build -t mygram-droid-build app

# Gradle and Android caches live in app/.home so files stay user-owned.
mkdir -p app/.home
docker run --rm --user "$(id -u):$(id -g)" -e HOME=/src/.home -e JAVA_TOOL_OPTIONS=-Duser.home=/src/.home \
	-v "$PWD/app:/src" -w /src mygram-droid-build \
	gradle --no-daemon -q "$task"
if [ "$task" = assembleDebug ]; then
	ls -l app/build/outputs/apk/debug/*.apk
fi