tabbed-casilda/bootstrap-deps.sh

#!/bin/sh
set -e

# Build and install the source-built dependencies needed by the Casilda fork
# into ~/.local: libxkbcommon, wlroots, and gtk4. Idempotent: each step is
# skipped if the pinned version is already found in ~/.local.
#
# Requires a Debian/Ubuntu-family system (apt + multiarch libdir).

prefix="$HOME/.local"
src_dir="$HOME/src"
multiarch="$(dpkg-architecture -qDEB_HOST_MULTIARCH 2>/dev/null || cc -print-multiarch 2>/dev/null || echo x86_64-linux-gnu)"
pc_path="$prefix/lib/$multiarch/pkgconfig"
tmp_dir="/tmp/opencode"

xkbcommon_version="1.8.1"
wlroots_version="0.20.1"
gtk4_version="4.22.4"

xkbcommon_url="https://codeload.github.com/xkbcommon/libxkbcommon/tar.gz/refs/tags/xkbcommon-${xkbcommon_version}"
wlroots_url="https://gitlab.freedesktop.org/wlroots/wlroots/-/archive/${wlroots_version}/wlroots-${wlroots_version}.tar.bz2"
gtk4_url="https://download.gnome.org/sources/gtk/4.22/gtk-${gtk4_version}.tar.xz"

export PKG_CONFIG_PATH="$pc_path${PKG_CONFIG_PATH:+:$PKG_CONFIG_PATH}"
export LD_LIBRARY_PATH="$prefix/lib/$multiarch${LD_LIBRARY_PATH:+:$LD_LIBRARY_PATH}"
export GI_TYPELIB_PATH="$prefix/lib/$multiarch/girepository-1.0${GI_TYPELIB_PATH:+:$GI_TYPELIB_PATH}"
export GSETTINGS_SCHEMA_DIR="$prefix/share/glib-2.0/schemas"

mkdir -p "$prefix" "$src_dir" "$tmp_dir"

apt_packages="
meson ninja-build gcc pkg-config bison gperf sassc dpkg-dev gettext
libwayland-dev wayland-protocols libdrm-dev libgbm-dev libseat-dev
libinput-dev libpixman-1-dev libgles2-mesa-dev libegl1-mesa-dev libudev-dev
libdisplay-info-dev hwdata
libglib2.0-dev libpango1.0-dev libharfbuzz-dev libcairo2-dev libgraphene-1.0-dev libgdk-pixbuf-2.0-dev
libepoxy-dev libx11-dev libxcursor-dev libxdamage-dev libxfixes-dev libxi-dev
libxkbcommon-x11-dev libgirepository1.0-dev gobject-introspection
"

missing=""
for pkg in $apt_packages; do
    if ! dpkg-query -W -f='${Status}' "$pkg" 2>/dev/null | grep -q "^install ok installed"; then
        missing="$missing $pkg"
    fi
done
if [ -n "$missing" ]; then
    echo "Installing missing packages:$missing"
    sudo apt-get install -y $missing
fi

download_and_extract() {
    name="$1"
    url="$2"
    file="$3"
    if [ -d "$src_dir/$name" ]; then
        echo "Source $name already present at $src_dir/$name; skipping download"
        return 0
    fi
    echo "Downloading $file"
    if ! curl -fsSL -o "$tmp_dir/$file" "$url"; then
        echo "ERROR: failed to download $url" >&2
        exit 1
    fi
    echo "Extracting $file"
    tar -xf "$tmp_dir/$file" -C "$src_dir"
    rm -f "$tmp_dir/$file"
}

build_step() {
    name="$1"
    module="$2"
    dir="$src_dir/$name"
    if [ ! -d "$dir" ]; then
        echo "ERROR: source dir $dir missing" >&2
        exit 1
    fi
    if [ -d "$dir/build" ]; then
        echo "Build dir $dir/build exists; reconfiguring"
        meson setup --reconfigure "$dir/build" "$dir" --prefix "$prefix" ${3:-}
    else
        meson setup "$dir/build" "$dir" --prefix "$prefix" ${3:-}
    fi
    meson compile -C "$dir/build"
    meson install -C "$dir/build"
}

version_at_least() {
    pkg="$1"
    pkg-config --atleast-version="$2" "$pkg"
}

if version_at_least xkbcommon "$xkbcommon_version"; then
    echo "xkbcommon >= $xkbcommon_version already installed; skipping"
else
    download_and_extract "libxkbcommon-xkbcommon-${xkbcommon_version}" "$xkbcommon_url" "libxkbcommon-${xkbcommon_version}.tar.gz"
    build_step "libxkbcommon-xkbcommon-${xkbcommon_version}" libxkbcommon \
        "-Denable-tools=false -Denable-x11=false -Denable-docs=false -Denable-xkbregistry=false"
fi

if version_at_least wlroots-0.20 "$wlroots_version"; then
    echo "wlroots >= $wlroots_version already installed; skipping"
else
    download_and_extract "wlroots-${wlroots_version}" "$wlroots_url" "wlroots-${wlroots_version}.tar.bz2"
    build_step "wlroots-${wlroots_version}" wlroots "-Dexamples=false -Dbackends= -Dsession=disabled"
fi

if version_at_least gtk4 "$gtk4_version"; then
    echo "gtk4 >= $gtk4_version already installed; skipping"
else
    download_and_extract "gtk-${gtk4_version}" "$gtk4_url" "gtk-${gtk4_version}.tar.xz"
    build_step "gtk-${gtk4_version}" gtk \
        "-Dbuild-tests=false -Dbuild-testsuite=false -Dbuild-examples=false -Dbuild-demos=false -Dmedia-gstreamer=disabled -Dcloudproviders=disabled -Dsysprof=disabled -Dtracker=disabled -Dprint-cups=disabled -Dvulkan=disabled -Dintrospection=enabled"
fi

echo "All dependencies installed to $prefix"