# glibc.recipe.py
pkgname = "glibc"
pkgver = "2.42"
atomic = True
source = f"https://ftpmirror.gnu.org/gnu/glibc/glibc-{pkgver}.tar.xz"
builddir = f"/tmp/fempkg/build/{pkgname}/{pkgname}-{pkgver}"
fembuilddir = f"/tmp/fempkg/build/{pkgname}"
outputdir = "/home/gabry/lfs-repo/binpkg"
manifestdir = "/home/gabry/lfs-repo/manifests"
destdir = f"{fembuilddir}/DESTDIR"
deps = []

build = [
    # Extract tarball
    f"mkdir -p {fembuilddir} && cd {fembuilddir} && tar -xvf /var/lib/fempkg/pkgs/{pkgname}-{pkgver}.tar.xz && wget "
    f"https://www.linuxfromscratch.org/patches/lfs/development/glibc-{pkgver}-fhs-1.patch "
    f"https://www.iana.org/time-zones/repository/releases/tzdata2025b.tar.gz https://www.linuxfromscratch.org/patches/lfs/development/glibc-"
    f"{pkgver}-upstream_fixes-1.patch",

    # Apply patches
    f"cd {builddir} && patch -Np1 -i ../glibc-{pkgver}-upstream_fixes-1.patch",
    f"cd {builddir} && patch -Np1 -i ../glibc-{pkgver}-fhs-1.patch",

    # sed fix (operate inside source tree)

    f"cd {builddir} && " # DONT REMOVE THE ADDITIONAL SPACES (idk if important but it works so KEEP IT AAAAA)
    f"sed -i -e '/unistd.h/i #include <string.h>' -e '/libc_rwlock_init/c\\  __libc_rwlock_define_initialized (, reset_lock);\\  "
    f"memcpy (&lock, &reset_lock, sizeof (lock));' stdlib/abort.c",

    # Create 64-bit build dir & configure
    f"cd {builddir} && mkdir -v build",
    f"cd {builddir}/build && echo 'rootsbindir=/usr/sbin' > configparms",
    (
        f"cd {builddir}/build && ../configure --prefix=/usr "
        "--disable-werror --disable-nscd libc_cv_slibdir=/usr/lib "
        "--enable-stack-protector=strong --enable-kernel=5.4"
    ),

    # Build 64-bit
    f"cd {builddir}/build && make -j$(nproc)",

    # Prevent the installation test script from aborting install (adjust Makefile)
    # edit the top-level Makefile (one dir up from build)
    f"cd {builddir}/build && sed '/test-installation/s@\\$(PERL)@echo not running@' -i ../Makefile",

    # Install 64-bit
    f"cd {builddir}/build && make DESTDIR={destdir} install",

    # fix ldd RTLDLIST edit (as in LFS instructions)
    f"sed '/RTLDLIST=/s@/usr@@g' -i {destdir}/usr/bin/ldd",

    # Install locales from the build dir (objdir must be set)
    f"cd {builddir}/build && make DESTDIR={destdir} localedata/install-locales ",

    f"mkdir -pv {destdir}/etc",
    # Create nsswitch.conf (heredoc)
    f"""cat > {destdir}/etc/nsswitch.conf << "EOF"
passwd: files
group: files
shadow: files

hosts: files dns
networks: files

protocols: files
services: files
ethers: files
rpc: files
EOF""",

    # Timezone setup: ensure ZONEINFO is exported for the whole block and run in /sourc
    # Timezone setup: ensure we stay in /sources
(
    f"mkdir -pv {builddir}/localodoto && cd {builddir}/localodoto && tar -xf ../../tzdata2025b.tar.gz && mkdir -pv {destdir}/usr/share/licenses/tzdata/ && cp -pv LICENSE {destdir}/usr/share/licenses/tzdata/ && "
    f"ZONEINFO={destdir}/usr/share/zoneinfo && "
    "mkdir -pv $ZONEINFO/{posix,right} && "

    # Compile all timezones into DESTDIR
    "for tz in etcetera southamerica northamerica europe africa antarctica asia australasia backward; do "
    "  zic -L /dev/null   -d $ZONEINFO        ${tz}; "
    "  zic -L /dev/null   -d $ZONEINFO/posix  ${tz}; "
    "  zic -L leapseconds -d $ZONEINFO/right  ${tz}; "
    "done && "

    # Copy metadata files (zone.tab etc.) to DESTDIR
    f"cp -v zone.tab zone1970.tab iso3166.tab {destdir}/usr/share/zoneinfo && "

    # Set default timezone inside DESTDIR (not host system!)
    f"zic -d {destdir}/usr/share/zoneinfo -p America/New_York && "

    # Install the default /etc/localtime into DESTDIR
    f"mkdir -p {destdir}/etc && "
    f"ln -sfv ../usr/share/zoneinfo/Europe/Rome {destdir}/etc/localtime"
),


    f"mkdir -pv {destdir}/etc/ld.so.conf.d",

    # --- 32-bit Glibc build (do this inside the same build dir) ---
    # clean objdir but keep source tree
    f"cd {builddir}/build && rm -rf ./*",
    f"cd {builddir}/build && find .. -name '*.a' -delete",

    # configure 32-bit build from build dir (use CC/CXX -m32)
    (
        f"cd {builddir}/build && "
        "CC=\"gcc -m32\" CXX=\"g++ -m32\" ../configure "
        "--prefix=/usr "
        "--host=i686-pc-linux-gnu "
        "--build=$(../scripts/config.guess) "
        "--libdir=/usr/lib32 "
        "--libexecdir=/usr/lib32 "
        "--disable-werror "
        "--disable-nscd "
        "libc_cv_slibdir=/usr/lib32 "
        "--enable-stack-protector=strong "
        "--enable-kernel=5.4"
    ),


    # build & install 32-bit into DESTDIR then copy files to root locations
    f"cd {builddir}/build && make -j$(nproc)",
    f"cd {builddir}/build && make DESTDIR={destdir} install",

    f"install -v -d -m755 {destdir}/usr/share/licenses/{pkgname}/",
    f"install -v -m644 {builddir}/COPYING.LIB {destdir}/usr/share/licenses/{pkgname}/COPYING.LIB",
    f"install -v -m644 {builddir}/COPYING {destdir}/usr/share/licenses/{pkgname}/COPYING",
    
    # Make tarball + manifests
    f"mkdir -p {outputdir} && cd {destdir} && tar --transform 's|^\\.||' -I zstd -cf {outputdir}/{pkgname}-{pkgver}.tar.zst .",
    f"mkdir -p {manifestdir} && tar -tf {outputdir}/{pkgname}-{pkgver}.tar.zst | grep -v '/$' > {manifestdir}/{pkgname}.txt",
]