#!/bin/sh
set -eu

if [ "$#" -ne 9 ]; then
    printf '%s\n' \
        "usage: configure-cross-toolchain.sh DEST SYSROOT CLANG CLANGXX LLD BUILTINS RUST_EH_PERSONALITY LLVM_AR LLVM_STRIP" >&2
    exit 2
fi

script_dir=$(CDPATH= cd -- "$(dirname -- "$0")" && pwd)
repo_dir=$(dirname "$script_dir")
. "$script_dir/mouse-arch.sh"
destination=$1
sysroot=$2
clang=$3
clangxx=$4
lld=$5
builtins=$6
rust_eh_personality=$7
llvm_ar=$8
llvm_strip=$9
target=$MOUSE_CROSS_TARGET

for requirement in \
    "$clang" "$clangxx" "$lld" "$builtins" "$rust_eh_personality" "$llvm_ar" "$llvm_strip"
do
    if [ ! -f "$requirement" ]; then
        printf '%s\n' "missing cross-toolchain input: $requirement" >&2
        exit 1
    fi
done

install -d -m 0755 "$destination/bin"
install -m 0755 \
    "$repo_dir/base/support/cross-compiler-driver" \
    "$destination/bin/compiler-driver"

printf '%s\n' \
    "$clang" \
    "$clangxx" \
    "$sysroot" \
    "$lld" \
    "$builtins" \
    "$rust_eh_personality" \
    "$MOUSE_RUST_TARGET" \
    >"$destination/compiler.conf"

ln -sf compiler-driver "$destination/bin/$target-cc"
ln -sf compiler-driver "$destination/bin/$target-c++"
ln -sf compiler-driver "$destination/bin/$target-bootstrap-c++"
ln -sf "$llvm_ar" "$destination/bin/$target-ar"
ln -sf "$llvm_ar" "$destination/bin/$target-ranlib"
ln -sf "$llvm_strip" "$destination/bin/$target-strip"