#!/usr/bin/env bash
# phase5_tools.sh
# LFS 12.2 阶段5 临时工具链全自动化
set -euo pipefail
IFS=$'\n\t'

LFS_WORKDIR="$PWD/lfs_build"
CPU_CORES="$(nproc)"
LFS_SRC="$LFS_WORKDIR/sources"
LFS_BUILD="$LFS_WORKDIR/build"

info(){ echo -e "\e[34m[INFO]\e[0m $*"; }

cd "$LFS_BUILD"

# 阶段5官方包顺序
PACKAGES=(
"binutils"
"gcc"
"glibc"
"libstdc++"
"bash"
"coreutils"
"diffutils"
"file"
"findutils"
"gawk"
"grep"
"gzip"
"make"
"patch"
"sed"
"tar"
"xz"
)

# 自动解压、编译、安装
for pkg in "${PACKAGES[@]}"; do
    info "处理阶段5包: $pkg"
    src=$(ls "$LFS_SRC" | grep "$pkg")
    [ -f "$src" ] || { echo "源码 $pkg 未找到"; exit 1; }
    rm -rf "$pkg-build"
    mkdir "$pkg-build"
    tar xf "$LFS_SRC/$src" -C "$pkg-build" --strip-components=1
    cd "$pkg-build"

    # 自动 patch
    for patchf in "$LFS_SRC"/*.patch; do
        patch -Np1 < "$patchf" 2>/dev/null || true
    done

    # 编译安装
    ./configure --prefix=/tools --disable-multilib || true
    make -j"$CPU_CORES"
    make install

    cd "$LFS_BUILD"
    rm -rf "$pkg-build"
done

info "阶段5 临时工具链构建完成"