bt-img

#!/bin/bash -e
# Copyright (c) 2011-2021 TurnKey GNU/Linux - http://www.turnkeylinux.org
# 
# This file is part of buildtasks.
# 
# Buildtasks is free software; you can redistribute it and/or modify it
# under the terms of the GNU Affero General Public License as published by the
# Free Software Foundation; either version 3 of the License, or (at your
# option) any later version.


fatal() { echo "FATAL [$(basename $0)]: $@" 1>&2; exit 1; }
warning() { echo "WARNING [$(basename $0)]: $@"; }
info() { echo "INFO [$(basename $0)]: $@"; }

usage() {
cat<<EOF
Syntax: $(basename $0) [ --publish ] appname
Builds appliance appname (e.g., core) IMG

Arguments::

    appname             - e.g., core

Options::

    --publish           - publish img, release files and tklbam profile

Environment::

    BT_DEBUG            - turn on debugging
EOF
exit 1
}

while [ "$1" != "" ]; do
    case $1 in
        --help|-h )    usage;;
        --publish)     publish="yes";;
        *)             if [ -n "$appname" ]; then usage; else appname=$1; fi ;;
    esac
    shift
done

[ -n "$appname" ] || usage
[ -n "$BT_DEBUG" ] && set -x

REQ_FAB_V=0.8
REQ_DBOOT_V=1.0.123
HOST_VER=$(lsb_release -sr | cut -d. -f1)

export BT=$(dirname $(readlink -f $0))
export BT_CONFIG=$BT/config
. $BT_CONFIG/common.cfg

if [ "$publish" == "yes" ]; then
    [ -n "$BT_PUBLISH_IMGS" ] || fatal "BT_PUBLISH_IMGS not set"
    [ -n "$BT_PUBLISH_META" ] || fatal "BT_PUBLISH_META not set"
    [ -n "$BT_PUBLISH_PROFILES" ] || fatal "BT_PUBLISH_PROFILES not set"
else
    warning "--publish was not specified"
fi

clone_or_pull() {
    # If $dir doesn't exist, clone $repo. If it does, update from origin master
    dir=$1
    repo=$2
    [[ -n "$dir" ]] && [[ -n "$repo" ]] \
        || fatal "One or more empty values passed to function: $FUNCNAME."
    if [ ! -e $dir ]; then
        info "Attempting to clone repo $repo to $dir."
        cd $(dirname $dir)
        git clone https://github.com/$repo $dir
        cd $dir
    else
        info "Repo $repo found, attempting to update"
        cd $dir
        git pull origin master
    fi
}

get_version() {
    pkg=$1
    pkg_info=$(dpkg -l | grep ^ii | tr -s [[:blank:]] ' ' | cut -d' ' -f2,3 \
        | grep "^$pkg[ |:]")
    echo $pkg_info | cut -d' ' -f2
}

install_pkg() {
    _pkg=$1
    _url=$2
    wget -O /tmp/$_pkg $_url/$_pkg
    apt install /tmp/$_pkg
    rm -rf /tmp/$_pkg
}

# Leverage tkldev-setup to ensure important repos are cloned and at latest
# commit; also ensures RELEASE & ARCH are set.
tkldev-setup $appname \
        || warning "tkldev-setup failed. Attempting to continue anyway."

# if v17.x (bullseye) being built on v16.x (buster) get/build right bootstrap
TKL_VER=$(head -1 $BT_PRODUCTS/$appname/changelog | cut -d' ' -f1)
MAJ_VER_NO=$(basename $(echo $TKL_VER | tr '-' '/') | cut -d'.' -f1)
if [[ "$HOST_VER" -eq 10 ]] \
    && [[ $MAJ_VER_NO -eq 17 ]]; then
    warning "Buster host detected, attempting to build for Bullseye."
    RC="rc1"
    info "Assuming RC build. Nominating $RC."
    export VERSION_TAG=$RC
    export CODENAME="bullseye"
    export RELEASE="debian/$CODENAME"
    info "Fab v$(get_version fab) detected."
    if [[ "$(get_version fab)" != "$REQ_FAB_V"* ]]; then
        warning "Fab v$REQ_FAB_V required, attempting install."
        fab_pkg=fab_${REQ_FAB_V}_stretch_amd64.deb
        fab_url=https://github.com/turnkeylinux/fab/releases/download/v${REQ_FAB_V}
        install_pkg $fab_pkg $fab_url
    fi
    export GPGKEY="A8B2EF4287819B03D3516CCA76231C20425E9772"
    IMAGES="http://mirror.turnkeylinux.org/turnkeylinux/images"
    BOOTSTRAP_NAME="bootstrap-$CODENAME-$(dpkg --print-architecture)"
    BOOTSTRAP_PATH="$FAB_PATH/bootstraps/$CODENAME"
    if [ ! -d $BOOTSTRAP_PATH ]; then
        info "Attempting to download $BOOTSTRAP_NAME"
        mkdir -p $(dirname $BOOTSTRAP_PATH)
        cd $(dirname $BOOTSTRAP_PATH)
        exit_code=0
        #wget -nc $IMAGES/bootstrap/$BOOTSTRAP_NAME.tar.gz || exit_code=$?
        #wget -nc $IMAGES/bootstrap/$BOOTSTRAP_NAME.tar.gz.hash || exit_code=$?
        exit_code=1 # force rebuild of bootstrap...
        if [[ "$exit_code" -eq 0 ]]; then
            info "verifying $BOOTSTRAP_NAME"
            gpg --keyserver hkps://keyserver.ubuntu.com --recv-keys $GPGKEY
            gpg --verify $BOOTSTRAP_NAME.tar.gz.hash

            info "unpacking $BOOTSTRAP_NAME"
            mkdir $BOOTSTRAP_PATH
            tar -zxf $BOOTSTRAP_NAME.tar.gz -C $BOOTSTRAP_PATH
            cd -
        else
            warning "Downloading bootstrap failed."
            info "Attempting to build bootstrap."
            info "Debootstrap v$(get_version debootstrap) detected."
            if [[ "$(get_version debootstrap)" != "$REQ_DBOOT_V"* ]]; then
                warning "Debootstrap v$REQ_DBOOT_V required, attempting install."
                dboot_pkg=debootstrap_${REQ_DBOOT_V}_all.deb
                dboot_url=http://deb.debian.org/debian/pool/main/d/debootstrap/
                install_pkg $dboot_pkg $dboot_url
            fi
            unset PUBLISH
            BOOTSTRAP_SRC=$(dirname $FAB_PATH)/bootstrap
            [[ "$publish" != "yes" ]] || PUBLISH="--publish"
            $BT/bt-bootstrap $PUBLISH --no-clean --force \
                || fatal "Building bootstrap failed... :("
            rsync --delete -Hac $BOOTSTRAP_SRC/build/bootstrap/ \
                $FAB_PATH/bootstraps/$CODENAME/
            # create symlinks so bin/generate-buildenv completes successfully
            ln -s $BT_BUILDS/bootstrap/$BOOTSTRAP_NAME.tar.gz \
                $(dirname $BOOTSTRAP_PATH)/$BOOTSTRAP_NAME.tar.gz
            ln -s $BT_BUILDS/bootstrap/$BOOTSTRAP_NAME.tar.gz.hash \
                $(dirname $BOOTSTRAP_PATH)/$BOOTSTRAP_NAME.tar.gz.hash
        fi
    fi
    touch $BOOTSTRAP_PATH/bullseye_on_buster
fi

info "Preperation done. Building appliance $appname."
cd $BT_PRODUCTS/$appname
deck -D build/root.sandbox || true
make clean || true
make || true

if [ ! -e build/product.img.xz ]; then
    if [ -z "$BT_DEBUG" ]; then
        deck -D build/root.sandbox >/dev/null 2>&1 || true
        make clean >/dev/null 2>&1 || true
    fi
    fatal "Build failed..."
fi

mkdir -p $BT_IMGS
$BT/bin/img-release --force $BT_IMGS

if [ "$publish" == "yes" ]; then
    name=$(cat build/root.sandbox/etc/turnkey_version)
    $BT/bin/img-publish $BT_IMGS/$name.img.xz
fi

if [ -z "$BT_DEBUG" ]; then
    deck -D build/root.sandbox
    make clean
fi