#!/bin/bash
# build-all.sh - script to build all packages with a build order specified by buildorder.py

set -e -u -o pipefail

if [ "$(uname -o)" = "Android" ] || [ -e "/system/bin/app_process" ]; then
	echo "On-device execution of this script is not supported."
	exit 1
fi

# Read settings from .termuxrc if existing
test -f $HOME/.termuxrc && . $HOME/.termuxrc
: ${TERMUX_TOPDIR:="$HOME/.termux-build"}
: ${TERMUX_ARCH:="aarch64"}
: ${TERMUX_DEBUG:=""}
: ${TERMUX_INSTALL_DEPS:="-s"}
# Set TERMUX_INSTALL_DEPS to -s unless set to -i

_show_usage() {
	echo "Usage: ./build-all.sh [-a ARCH] [-d] [-i] [-o DIR]"
	echo "Build all packages."
	echo "  -a The architecture to build for: aarch64(default), arm, i686, x86_64 or all."
	echo "  -d Build with debug symbols."
	echo "  -i Build dependencies."
	echo "  -o Specify deb directory. Default: debs/."
	exit 1
}

while getopts :a:hdio: option; do
case "$option" in
	a) TERMUX_ARCH="$OPTARG";;
	d) TERMUX_DEBUG='-d';;
	i) TERMUX_INSTALL_DEPS='-i';;
	o) TERMUX_DEBDIR="$(realpath -m $OPTARG)";;
	h) _show_usage;;
esac
done
shift $((OPTIND-1))
if [ "$#" -ne 0 ]; then _show_usage; fi

if [[ ! "$TERMUX_ARCH" =~ ^(all|aarch64|arm|i686|x86_64)$ ]]; then
	echo "ERROR: Invalid arch '$TERMUX_ARCH'" 1>&2
	exit 1
fi

BUILDSCRIPT=$(dirname $0)/build-package.sh
BUILDALL_DIR=$TERMUX_TOPDIR/_buildall-$TERMUX_ARCH
BUILDORDER_FILE=$BUILDALL_DIR/buildorder.txt
BUILDSTATUS_FILE=$BUILDALL_DIR/buildstatus.txt

if [ -e $BUILDORDER_FILE ]; then
	echo "Using existing buildorder file: $BUILDORDER_FILE"
else
	mkdir -p $BUILDALL_DIR
	./scripts/buildorder.py > $BUILDORDER_FILE
fi
if [ -e $BUILDSTATUS_FILE ]; then
	echo "Continuing build-all from: $BUILDSTATUS_FILE"
fi

exec >	>(tee -a $BUILDALL_DIR/ALL.out)
exec 2> >(tee -a $BUILDALL_DIR/ALL.err >&2)
trap "echo ERROR: See $BUILDALL_DIR/\${PKG}.err" ERR

while read PKG PKG_DIR; do
	# Check build status (grepping is a bit crude, but it works)
	if [ -e $BUILDSTATUS_FILE ] && grep "^$PKG\$" $BUILDSTATUS_FILE >/dev/null; then
		echo "Skipping $PKG"
		continue
	fi

	echo -n "Building $PKG... "
	BUILD_START=$(date "+%s")
	bash -x $BUILDSCRIPT -a $TERMUX_ARCH $TERMUX_DEBUG \
		${TERMUX_DEBDIR+-o $TERMUX_DEBDIR} $TERMUX_INSTALL_DEPS $PKG_DIR \
		> $BUILDALL_DIR/${PKG}.out 2> $BUILDALL_DIR/${PKG}.err
	BUILD_END=$(date "+%s")
	BUILD_SECONDS=$(( $BUILD_END - $BUILD_START ))
	echo "done in $BUILD_SECONDS"

	# Update build status
	echo "$PKG" >> $BUILDSTATUS_FILE
done<${BUILDORDER_FILE}

# Update build status
rm -f $BUILDSTATUS_FILE
echo "Finished"