limine/bootstrap

#! /bin/sh

set -ex

srcdir="$(dirname "$0")"
test -z "$srcdir" && srcdir=.

cd "$srcdir"

FREESTANDING_TOOLCHAIN_COMMIT_HASH=18a5e52483344e117d45738c9afb2b34792cbced
FREESTANDING_HEADERS_COMMIT_HASH=dd3abd2d7147efc4170dff478d3b7730bed14147
CC_RUNTIME_COMMIT_HASH=38942e9a0d11af77c5d9fb45794850f7a1565d2b
LIMINE_EFI_COMMIT_HASH=f49bfc29a344f1bd57a6a99d8c71fcc133cd72c7
TINF_COMMIT_HASH=57ffa1f1d5e3dde19011b2127bd26d01689b694b
FLANTERM_COMMIT_HASH=9b51770c7ac99f36da85adeccdd6a5891d60f79b
STB_COMMIT_HASH=f4a71b13373436a2866c5d68f8f80ac6f0bc1ffe

AUXFILES="config.guess config.sub install-sh"

clone_repo_commit() {
    if [ -d $2/.git ]; then
        git -C $2 reset --hard
        git -C $2 clean -fd
        if ! git -C $2 checkout $3; then
            rm -rf $2
        fi
    else
        if [ -d $2 ]; then
            echo "error: '$2' is not a Git repository"
            exit 1
        fi
    fi
    if ! [ -d $2 ]; then
        git clone $1 $2
        git -C $2 checkout $3
    fi
}

if ! [ -f version ]; then
    clone_repo_commit https://github.com/mintsuki/freestanding-toolchain.git build-aux/freestanding-toolchain $FREESTANDING_TOOLCHAIN_COMMIT_HASH
    clone_repo_commit https://github.com/mintsuki/freestanding-headers.git freestanding-headers $FREESTANDING_HEADERS_COMMIT_HASH

    clone_repo_commit https://github.com/mintsuki/cc-runtime.git decompressor/cc-runtime $CC_RUNTIME_COMMIT_HASH
    rm -rf common/cc-runtime
    cp -rp decompressor/cc-runtime common/
    for f in common/cc-runtime/*.c; do
        mv "$f" "$(echo "$f" | sed 's/\.c/.s2.c/g')"
    done

    clone_repo_commit https://github.com/limine-bootloader/limine-efi.git limine-efi $LIMINE_EFI_COMMIT_HASH

    clone_repo_commit https://github.com/jibsen/tinf.git tinf $TINF_COMMIT_HASH
    mkdir -p decompressor/tinf
    cp tinf/src/tinf.h tinf/src/tinflate.c tinf/src/tinfgzip.c decompressor/tinf/
    patch -p0 < decompressor/tinf.patch
    rm -f tinf/src/tinf.h.orig tinf/src/tinflate.c.orig tinf/src/tinfgzip.c.orig

    clone_repo_commit https://github.com/mintsuki/flanterm.git common/flanterm $FLANTERM_COMMIT_HASH

    clone_repo_commit https://github.com/nothings/stb.git stb $STB_COMMIT_HASH
    cp stb/stb_image.h common/lib/
    patch -p0 < common/stb_image.patch
    rm -f common/lib/stb_image.h.orig
fi

for auxfile in $AUXFILES; do
    rm -f build-aux/$auxfile
done

autoreconf -fvi -Wall

# Older versions of autoreconf have a bug where they do not
# install auxiliary files, sometimes... Check if that is the
# case and work around...
for auxfile in $AUXFILES; do
    if ! [ -f build-aux/$auxfile ]; then
        if ! automake --print-libdir >/dev/null 2>&1; then
            echo "error: Broken autoreconf detected, but missing or broken automake."
            echo "       Please make sure automake is installed and working."
            exit 1
        fi
        mkdir -p build-aux
        cp -v "$(automake --print-libdir)/$auxfile" build-aux/
        chmod +x build-aux/$auxfile
    fi
done