#!/bin/bash
# aurb / aurs: aur build / aur sync with ccache and the ThinLTO cache mounted in the chroot (use with -c).
# Builds with clang by default (see aurutils-makepkg.conf); --gcc builds with gcc instead.
case "$(basename "$0")" in
    aurb) cmd=build ;;
    aurs) cmd=sync ;;
    *) echo "Invoke as aurb or aurs" >&2; exit 1 ;;
esac

baseconf="$HOME/.config/aurutils-makepkg.conf"
args=()
clang=1
for arg in "$@"; do
    if [[ $arg == --gcc ]]; then clang=0; else args+=("$arg"); fi
done

conf=$baseconf
if ((clang)); then
    conf=$(mktemp "${XDG_RUNTIME_DIR:-/tmp}/aurb-clang.XXXXXX.conf") || exit 1
    trap 'rm -f "$conf"' EXIT
    { echo 'AURB_CLANG=1'; cat "$baseconf"; } > "$conf"
fi

CCACHE_HOST_DIR="$HOME/.cache/ccache"
THINLTO_HOST_DIR="$HOME/.cache/thinlto"
mkdir -p "$CCACHE_HOST_DIR" "$THINLTO_HOST_DIR"

aur "$cmd" \
    --makepkg-conf "$conf" \
    --bind-rw "$CCACHE_HOST_DIR" \
    --bind-rw "$THINLTO_HOST_DIR" \
    --bind "$HOME/.config/aurb" \
    "${args[@]}"
status=$?

# After a successful sync, drop downloaded sources and logs from the AUR clones. Without -d,
# git clean keeps untracked directories, so VCS sources (bare clones) survive.
if [[ $cmd == sync && $status -eq 0 ]]; then
    for clone in "${AURDEST:-${XDG_CACHE_HOME:-$HOME/.cache}/aurutils/sync}"/*/; do
        [[ -d $clone.git ]] && git -C "$clone" clean -fxq
    done
fi
exit "$status"