slack minimal root filesystem tarballs for docker import

dockerimgbuild.sh

#!/bin/bash -ex
ROOT=/tmp/rfs
OUT=/tmp

S142_MIN_PKGS="aaa_base aaa_elflibs aaa_terminfo bash grep bzip2 coreutils cpio devs etc bin file procps-ng findutils glibc-solibs gzip less openssl patch pkgtools sed tar util-linux xz which pcre wget gnupg ncurses slapt-get curl dialog gawk libunistring libgcrypt utempter diffutils sqlite icu4c e2fsprogs ca-certificates perl"
S142_SMALL_PKGS="readline time mpfr libcgroup net-tools iproute2 tree ntp openssh vim"
S142_DEV_PKGS="gcc gcc-g++ gc guile make autoconf git glibc kernel-headers autoconf automake libtool m4 gettext gettext-tools pkg-config intltool atk glib2 gtk+2 pango zlib mesa libdrm libXxf86vm libunistring expat libxshmfence fribidi libpthread-stubs shared-mime-info fribidi libmpc flex bison libcroco libxml2 python font-misc-misc binutils texinfo adwaita-icon-theme hicolor-icon-theme libXtst at-spi2-atk at-spi2-core dbus gtk+3 libepoxy libSM libICE bigreqsproto compositeproto damageproto dmxproto dri2proto dri3proto fixesproto fontcacheproto fontsproto glproto inputproto kbproto presentproto printproto randrproto recordproto renderproto resourceproto scrnsaverproto videoproto xcb-proto xcmiscproto xextproto xf86bigfontproto xf86dgaproto xf86driproto xf86miscproto xf86vidmodeproto xineramaproto xproto cairo fontconfig freetype gdk-pixbuf2 libX11 libXau libXcomposite libXcursor libXdamage libXdmcp libXext libXfixes libXi libXinerama libXrandr libXrender libpng libxcb pixman harfbuzz polkit slapt-src libffi"

S150_MIN_PKGS="aaa_base aaa_glibc-solibs aaa_libraries aaa_terminfo bash findutils grep coreutils etc bin gzip openssl-solibs pkgtools sed tar util-linux xz pcre2 curl gawk libcap libpsl nghttp2 libunistring libgcrypt sqlite icu4c e2fsprogs brotli perl ca-certificates zstd libnsl libtirpc krb5 keyutils openssl slapt-get"
S150_SMALL_PKGS="bzip2 lbzip2 cpio devs vim lzlib wget ncurses readline mpfr net-tools iproute2 iputils ntp openssh pcre time libcgroup tree less slapt-src procps-ng which file dialog hostname"
S150_DEV_PKGS="gcc gcc-g++ gc guile make autoconf git glibc kernel-headers autoconf automake libtool m4 gettext-tools pkg-config intltool atk glib2 gtk+2 pango zlib mesa libdrm libXxf86vm expat libxshmfence fribidi graphite2 libpthread-stubs xorgproto shared-mime-info graphite2 fribidi libmpc flex bison libxml2 python3 libglvnd font-misc-misc binutils texinfo adwaita-icon-theme hicolor-icon-theme libXtst at-spi2-atk at-spi2-core dbus gtk+3 libepoxy wayland wayland-protocols libxkbcommon check zstd libpng libXft liberation-fonts-ttf libcanberra gamin libvorbis libogg elogind openssl patch diffutils utempter gettext gslapt glibc-i18n meson ninja libffi dbus-glib"

# NOTE: slapt-get/gslapt deps omitted... might include: cyrus-sasl gpgme libgpg-error libassuan gnupg2
SLAPT_DEPS="atk at-spi2-atk at-spi2-core brotli bzip2 cairo curl cyrus-sasl dbus e2fsprogs elogind fontconfig freetype fribidi gdk-pixbuf2 glib2 gnupg2 gpgme graphite2 gtk+3 harfbuzz keyutils krb5 libassuan libcap libepoxy libffi libglvnd libgpg-error libidn2 libnotify libnsl libpng libpsl libssh2 libtirpc libunistring libX11 libXau libxcb libXcomposite libXcursor libXdamage libXdmcp libXext libXfixes libXi libXinerama libxkbcommon libxml2 libXrandr libXrender nghttp2 openldap openssl openssl-solibs pango pcre pixman pkgtools polkit util-linux wayland xz zlib zstd"

function dobuild() {
    set -ex
    slackrel=${1:-slackware-15.0}
    imgtype=${2:-minimal}

    rm -rf $ROOT
    mkdir -p ${ROOT}/etc/slapt-get
    mkdir -p ${ROOT}/var/lib/pkgtools/packages

    echo "WORKINGDIR=${ROOT}/var/cache/slapt-get" >> ${ROOT}/etc/slapt-get/slapt-getrc
    case "$slackrel" in
        slackware64-15.0)
            echo "SOURCE=https://storage.googleapis.com/slackpacks.jaos.org/slackware64-15.0/:OFFICIAL" >> ${ROOT}/etc/slapt-get/slapt-getrc
            echo "SOURCE=http://slackware.uk/slackware/slackware64-current/:OFFICIAL" >> ${ROOT}/etc/slapt-get/slapt-getrc
        ;;
        slackware-15.0)
            echo "SOURCE=https://storage.googleapis.com/slackpacks.jaos.org/slackware-15.0/:OFFICIAL" >> ${ROOT}/etc/slapt-get/slapt-getrc
            echo "SOURCE=http://slackware.uk/slackware/slackware-current/:OFFICIAL" >> ${ROOT}/etc/slapt-get/slapt-getrc
        ;;
        slackwarearm-15.0)
            echo "SOURCE=https://storage.googleapis.com/slackpacks.jaos.org/slackwarearm-15.0/:OFFICIAL" >> ${ROOT}/etc/slapt-get/slapt-getrc
            echo "SOURCE=http://slackware.uk/slackwarearm/slackwarearm-current/:OFFICIAL" >> ${ROOT}/etc/slapt-get/slapt-getrc
        ;;
        slarm64-15.0)
            echo "#SOURCE=http://dl.fail.pp.ua/slackware/slarm64-current/:OFFICIAL" >> ${ROOT}/etc/slapt-get/slapt-getrc
            echo "SOURCE=https://slackware.uk/slarm64/slarm64-current/:OFFICIAL" >> ${ROOT}/etc/slapt-get/slapt-getrc
            echo "SOURCE=https://storage.googleapis.com/slackpacks.jaos.org/slarm64-15.0/:OFFICIAL" >> ${ROOT}/etc/slapt-get/slapt-getrc
        ;;
        slackware64-14.2)
            echo "SOURCE=https://storage.googleapis.com/slackpacks.jaos.org/slackware64-14.2/:OFFICIAL" >> ${ROOT}/etc/slapt-get/slapt-getrc
            echo "SOURCE=http://slackware.uk/slackware/slackware64-14.2/:OFFICIAL" >> ${ROOT}/etc/slapt-get/slapt-getrc
        ;;
        slackware-14.2)
            echo "SOURCE=https://storage.googleapis.com/slackpacks.jaos.org/slackware-14.2/:OFFICIAL" >> ${ROOT}/etc/slapt-get/slapt-getrc
            echo "SOURCE=http://slackware.uk/slackware/slackware-14.2/:OFFICIAL" >> ${ROOT}/etc/slapt-get/slapt-getrc
        ;;
        *)
            echo "Invalid slackware release ${slackrel}"
            exit 1
        ;;
    esac

    CLEANUP=
    case "${slackrel}" in
        *-15.0)
            MIN_PKGS=${S150_MIN_PKGS}
            SMALL_PKGS=${S150_SMALL_PKGS}
            DEV_PKGS=${S150_DEV_PKGS}
        ;;
        *-14.2)
            MIN_PKGS=${S142_MIN_PKGS}
            SMALL_PKGS=${S142_SMALL_PKGS}
            DEV_PKGS=${S142_DEV_PKGS}
        ;;
    esac

    case "$imgtype" in
        min*)
            ROOT=${ROOT} slapt-get -c ${ROOT}/etc/slapt-get/slapt-getrc --update
            ROOT=${ROOT} slapt-get -c ${ROOT}/etc/slapt-get/slapt-getrc --install ${MIN_PKGS}
            CLEANUP="binutils perl openssl"
        ;;
        small)
            ROOT=${ROOT} slapt-get -c ${ROOT}/etc/slapt-get/slapt-getrc --update
            ROOT=${ROOT} slapt-get -c ${ROOT}/etc/slapt-get/slapt-getrc --install ${MIN_PKGS} ${SMALL_PKGS}
            CLEANUP="binutils openssl"
        ;;
        dev)
            ROOT=${ROOT} slapt-get -c ${ROOT}/etc/slapt-get/slapt-getrc --update
            ROOT=${ROOT} slapt-get -c ${ROOT}/etc/slapt-get/slapt-getrc --install ${MIN_PKGS} ${SMALL_PKGS} ${DEV_PKGS}
            pushd $ROOT/srv && for r in slapt-get slapt-src gslapt cpan2tgz slapt-update-service;do git clone "https://software.jaos.org/git/${r}" || true;done; popd
        ;;
        *)
            echo "Invalid slackware image type ${imgtype}"
            exit 1
        ;;
    esac

    if [ -d $ROOT/lib64 ]; then
        if [ ! -e $ROOT/lib64/libdl.so.2 ]; then pushd $ROOT/lib64; ln -s libdl-*.so libdl.so.2 ;popd;fi
        if [ ! -e $ROOT/lib64/libc.so.6 ]; then pushd $ROOT/lib64; ln -s libc-*.so libc.so.6; popd;fi
    else
        if [ ! -e $ROOT/lib/libdl.so.2 ]; then pushd $ROOT/lib; ln -s libdl-*.so libdl.so.2 ;popd;fi
        if [ ! -e $ROOT/lib/libc.so.6 ]; then pushd $ROOT/lib; ln -s libc-*.so libc.so.6; popd;fi
    fi
    chroot $ROOT ldconfig
    chroot $ROOT /bin/bash -c "LANG=C /usr/sbin/update-ca-certificates" || true
    chroot $ROOT /bin/bash -c "cd /etc/ssl/certs; LANG=C /usr/bin/perl /usr/bin/c_rehash . " || true
    chroot $ROOT /bin/bash -c "/usr/bin/update-mime-database /usr/share/mime" || true
    #chroot $ROOT /bin/bash -c "/usr/bin/gdk-pixbuf-query-loaders \$(dirname \$(find /usr/lib/gdk-pixbuf* /usr/lib64/gdk-pixbuf* -type d -name loaders 2>/dev/null))/loaders.cache" || true
    chroot $ROOT /bin/bash -c "/usr/bin/gdk-pixbuf-query-loaders \$(pkg-config --variable=gdk_pixbuf_moduledir gdk-pixbuf-2.0).cache" || true
    #echo "update-mime-database /usr/share/mime 2>/dev/null || true" >> ${ROOT}/etc/profile.d/jaos.sh
    #echo "gdk-pixbuf-query-loaders 2>/dev/null > \$(dirname \$(find /usr/lib/gdk-pixbuf* /usr/lib64/gdk-pixbuf* -type d -name loaders 2>/dev/null))/loaders.cache || true" >> ${ROOT}/etc/profile.d/jaos.sh
    #chmod +x ${ROOT}/etc/profile.d/jaos.sh

    if [[ ${CLEANUP} ]]; then
            ROOT=${ROOT} slapt-get -c ${ROOT}/etc/slapt-get/slapt-getrc --remove --no-dep -y ${CLEANUP} &>/dev/null
    fi
    sed -i -re "s|$ROOT||" ${ROOT}/etc/slapt-get/slapt-getrc
    rm -rf ${ROOT}/var/cache/slapt-get
    pushd ${ROOT}/root && ln -s ../etc/profile .bashrc; popd
    echo 'echo "To get started, run: slapt-get --add-keys && slapt-get --update"' > ${ROOT}/etc/profile.d/getstarted.sh
    chmod +x ${ROOT}/etc/profile.d/getstarted.sh

    pushd ${ROOT} && tar cf $OUT/${slackrel}-${imgtype}.tar *; popd
}