FOSS-VG/scripts/build.sh

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#!/usr/bin/env bash
# Copyright 2022, FOSS-VG Developers and Contributers
#
# This program is free software: you can redistribute it and/or modify it
# under the terms of the GNU Affero General Public License as published
# by the Free Software Foundation, version 3.
#
# 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 Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# version 3 along with this program.
# If not, see https://www.gnu.org/licenses/agpl-3.0.en.html
if [ "$(tr '[:upper:]' '[:lower:]' <<< $SINGLE)" = "yes" ]; then
echo "Running build script in single-threaded mode."
WAIT_ANYWAY="wait"
else
WAIT_ANYWAY=""
fi
if [ -z "$CXX" ]; then
CXX="c++"
fi
if [ -z "$CXXFLAGS" ]; then
CXXFLAGS="-std=c++20 -Wall -Wextra"
fi
CXX_WITH_FLAGS="$CXX $CXXFLAGS"
# if unknown, figure out endianness
if [ -f .endianness ]; then
echo "Endianness known:"
cat .endianness
else
echo "Endianness unknown."
if [ ! -x resources/check_endianness ]; then
echo "Building endianness test."
$CXX_WITH_FLAGS -o resources/check_endianness resources/check_endianness.cpp
fi
echo "Probing endianness:"
resources/check_endianness > .endianness
fi
# `.cpp` files in src/lib will be automatically picked up and compiled into
# dynamically linked libraries.
echo "Building libs..."
mkdir -pv bin/lib
for lib in $(find ./src/lib -name "*.cpp"); do
COMPILE_COMMAND="$CXX_WITH_FLAGS -I ./include -fPIC -shared -o $(sed -e 's/^.\/src/.\/bin/;s/cpp$/so/' <<< $lib) $lib"
echo $COMPILE_COMMAND
$COMPILE_COMMAND &
$WAIT_ANYWAY
done
wait
# Commands for every program need to be given individually because we can't
# just add all shared libraries to all programs.
# Or can we? Idk, cba to find out.
# How to build a tool: Tell the compiler where to find shared libraries and
# which libraries to use.
# Example: shared libraries are in bin/lib => -Lbin/lib
# one of the libraries in that directory is nbt.so => use with -l:nbt.so
# How to run a tool: specify the library path to use for the dynamic linker
# when running a program
# Example: LD_LIBRARY_PATH=bin/lib bin/tools/dumpnbt
echo "Building tools..."
mkdir -pv bin/tools
# add compile commands to this array
COMPILE_COMMANDS=(
"$CXX_WITH_FLAGS src/tools/dumpnbt.cpp -I./include -Lbin/lib -l:nbt.so -l:javacompat.so -o bin/tools/dumpnbt"
"$CXX_WITH_FLAGS src/tools/hexnet.cpp -I./include -Lbin/lib -l:cli.so -l:libsockpp.so -o bin/tools/hexnet"
)
for command in ${!COMPILE_COMMANDS[@]}; do
echo "${COMPILE_COMMANDS[command]}"
${COMPILE_COMMANDS[command]} &
$WAIT_ANYWAY
done
wait