#!/bin/bash -e
#
# The buildbot script is only intended to run on Debian amd64
#

WWW=${HOME}/www/

BUILD=x86_64-linux-gnu

ALL_HOSTS=(
    x86_64-linux-gnu
    i586-linux-gnu
# x32 requires a recent kernel with appropriate flags.
# On Debian, boot with 'syscall.x32=y' on the kernel command line
# (see GRUB_CMDLINE_LINUX in /etc/default/grub)
    #x86_64-linux-gnux32
# Cross arches can be built by enabling multiarch, then installing
# the g++-$ARCH package.
# Executables can be run via qemu-user, but gdb tests must be disabled.
# Bug 762073 notes impossible coinstallation of mips, mipsel, and powerpc.
# dpkg-divert can only fix *one* of them.
    #aarch64-linux-gnu
    #arm-linux-gnueabi
    #arm-linux-gnueabihf
    #mips-linux-gnu
    #mipsel-linux-gnu
    #powerpc-linux-gnu
)

config---help() {
    set +x
    echo 'Usage: tools/nightly <list of arches>'
    echo 'Arches are:'
    echo x86_64-linux-gnu
    echo i586-linux-gnu
    echo x86_64-linux-gnux32
    echo aarch64-linux-gnu
    echo arm-linux-gnueabi
    echo arm-linux-gnueabihf
    echo mips-linux-gnu
    echo mipsel-linux-gnu
    echo powerpc-linux-gnu
    exit
}

common-config() {
    # HOST is set by the calling function
    CXX=$HOST-g++
    EXTRA_LIBS=(
        /lib/$HOST/libc.so.6
        /lib/$HOST/libm.so.6
        /lib/$HOST/libgcc_s.so.1
        /usr/lib/$HOST/libstdc++.so.6
    )
    GDB=/bin/true
}


config-x86_64-linux-gnu () {
    common-config
    GDB=gdb
}

config-i586-linux-gnu () {
    # No one knows what number this is supposed to be:
    # - the lib directory is called i386-linux-gnu
    # - the 32-bit files are called i486-linux-gnu
    # - the cross-32 configury says i586
    CXX=$BUILD-'g++ -m32'
    EXTRA_LIBS=(
        /lib32/libc.so.6
        /lib32/libm.so.6
        /usr/lib32/libgcc_s.so.1
        /usr/lib32/libstdc++.so.6
    )
    GDB=gdb
}

config-x86_64-linux-gnux32 () {
    CXX=$BUILD-'g++ -mx32'
    EXTRA_LIBS=(
        /libx32/libc.so.6
        /libx32/libm.so.6
        /usr/libx32/libgcc_s.so.1
        /usr/libx32/libstdc++.so.6
    )
    GDB=gdb
}

config-aarch64-linux-gnu () {
    common-config
}

config-arm-linux-gnueabi () {
    common-config
}

config-arm-linux-gnueabihf () {
    common-config
}

config-mips-linux-gnu () {
    common-config
}

config-mipsel-linux-gnu () {
    common-config
}

config-powerpc-linux-gnu () {
    common-config
}

first=true

set -x
for HOST in ${@:-${ALL_HOSTS[@]}}
do
    config-$HOST
    mkdir -p build-$HOST
    cd build-$HOST
    ../configure --build=$BUILD --host=$HOST CXX="$CXX -Wno-deprecated-declarations -DQUIET" --prefix=/. --enable-rpath=relative GDB=$GDB
    rm -rf bin lib stamp
    make -j3 all
    make -j3 test
    if $first
    then
        make -j3 dist
        first=false
    fi
    make -j3 bindist BUNDLED_LIBS="${EXTRA_LIBS[*]}"
    gzip -n -9 dist/*.tar
    mv dist/*.tar.gz $WWW
    cd ..
done