void-packages/xbps-src

#!/bin/bash
# vim: set ts=4 sw=4 et:

print_cross_targets() {
    local f
    for f in common/cross-profiles/*.sh; do
        f=${f%.sh}; f=${f##*/}; printf "\t$f\n"
    done
}

usage() {
    cat << _EOF
$PROGNAME: [options] <target> [arguments]

Targets: (only one may be specified)

binary-bootstrap [arch]
    Install bootstrap packages from host repositories into <masterdir>.
    If the optional 'arch' argument is set, it will install bootstrap packages
    from this architecture, and its required xbps utilities. The <masterdir>
    will be initialized for chroot operations.

bootstrap
    Build and install from source the bootstrap packages into <masterdir>.

bootstrap-update
    Updates bootstrap packages with latest versions available from registered
    repositories in the XBPS configuration file.

consistency-check
    Runs a consistency check on all packages

chroot
    Enter to the chroot in <masterdir>.

clean-repocache
    Removes obsolete packages from <hostdir>/repocache.

fetch <pkgname>
    Download package source distribution file(s).

extract <pkgname>
    Extract package source distribution file(s) into the build directory.
    By default set to <masterdir>/builddir.

patch <pkgname>
    Patch the package sources and perform other operations required to
    prepare a package for configuring and building

configure <pkgname>
    Configure a package (fetch + extract + patch + configure).

build <pkgname>
    Build package source (fetch + extract + patch + configure + build).

check <pkgname>
    Run the package check(s) after building the package source.

install <pkgname>
    Install target package into <destdir> but not building the binary package
    and not removing build directory for inspection purposes.

pkg <pkgname>
    Build binary package for <pkgname> and all required dependencies.

clean [pkgname]
    Removes auto dependencies, cleans up <masterdir>/builddir and <masterdir>/destdir.
    If <pkgname> argument is specified, package files from <masterdir>/destdir and its
    build directory in <masterdir>/buiddir are removed.

list
    Lists installed packages in <masterdir>.

remove <pkgname>
    Remove target package from <destdir>. If <pkgname>-<version> is not matched
    from build template nothing is removed.

remove-autodeps
    Removes all package dependencies that were installed automatically.

purge-distfiles
    Removes all obsolete distfiles in <hostdir>/sources.

show <pkgname>
    Show information for the specified package.

show-avail <pkgname>
    Returns 0 if package can be built for the given architecture,
    any other error otherwise.

show-build-deps <pkgname>
    Show required build dependencies for <pkgname>.

show-deps <pkgname>
    Show required run-time dependencies for <pkgname>. Package must be
    installed into destdir.

show-files <pkgname>
    Show files installed by <pkgname>. Package must be installed into destdir.

show-hostmakedepends <pkgname>
    Show required host build dependencies for <pkgname>.

show-makedepends <pkgname>
    Show required target build dependencies for <pkgname>.

show-options <pkgname>
    Show available build options by <pkgname>.

show-shlib-provides <pkgname>
    Show list of provided shlibs for <pkgname>. Package must be installed into destdir.

show-shlib-requires <pkgname>
    Show list of required shlibs for <pkgname>. Package must be installed into destdir.

show-var <var>
    Prints the value of <var> if it's defined in xbps-src.

show-repo-updates
    Prints the list of outdated packages in XBPS repositories.

show-sys-updates
    Prints the list of outdated packages in your system.

sort-dependencies <pkg> <pkgN+1> ...
    Given a list of packages specified as additional arguments, a sorted dependency
    list will be returned to stdout.

update-bulk
    Rebuilds all packages in the system repositories that are outdated.

update-sys
    Rebuilds all packages in your system that are outdated and updates them.

update-check <pkgname>
    Check upstream site of <pkgname> for new releases.

update-hash-cache
    Update the hash cache with existing source distfiles.

zap
    Removes a masterdir but preserving ccache, distcc and host directories.

Options:

-a  <target>
    Cross compile packages for this target machine. Supported targets:

$(print_cross_targets)

-C  Do not remove build directory, automatic dependencies and
    package destdir after successful install.

-E  If a binary package exists in a local repository for the target package,
    do not try to build it, exit immediately.

-f  Force running the specified stage (configure/build/install/pkg)
    even if it ran successfully.

-G  Enable XBPS_USE_GIT_REVS (see etc/defaults.conf for more information).

-Q  Enable running the check stage.

-g  Enable building -dbg packages with debugging symbols.

-H  <hostdir>
    Absolute path to a directory to be bind mounted at <masterdir>/host.
    The host directory stores binary packages, sources and package dependencies
    downloaded from remote repositories.
    If unset defaults to void-packages/hostdir.

-h  Usage output.

-I  Ignore required dependencies, useful for extracting/fetching sources.

-j  Number of parallel build jobs to use when building packages.

-L  Disable ASCII colors.

-m  <masterdir>
    Absolute path to a directory to be used as masterdir.
    The masterdir is the main directory to build/store/compile packages.
    If unset defaults to void-packages/masterdir.

-N  Disable use of remote repositories to resolve dependencies.

-o  <opt,~opt2,...>
    Enable or disable (prefixed with ~) package build options. If 'etc/conf'
    already specifies some, it is merged. Keep in mind that these options
    apply to all packages within the build, as in if a dependency needs to
    be built, it will inherit these options.

    Supported options can be shown with the 'show-options' target.

-r  <repo>
    Use an alternative local repository to store generated binary packages.
    If unset defaults to <hostdir>/binpkgs. If set the binpkgs will
    be stored into <hostdir>/binpkgs/<repo>.
    This alternative repository will also be used to resolve dependencies
    with highest priority order than others.

-t  Create a temporary masterdir to not pollute the current one. Note that
    the existing masterdir must be fully populated with binary-bootstrap first.
    Once the target has finished, this temporary masterdir will be removed.
    This flag requires xbps-uchroot(1).

_EOF
}

check_reqhost_utils() {
    local broken

    [ "$IN_CHROOT" ] && return 0

    for f in ${REQHOST_UTILS}; do
        if ! command -v ${f} &>/dev/null; then
            echo "${f} is missing in your system, can't continue!" 1>&2
            broken=1
        fi
    done
    [ "$broken" ] && exit 1
    [ -z "$1" ] && return 0

    for f in ${REQHOST_UTILS_BOOTSTRAP}; do
        if ! command -v ${f} &>/dev/null; then
            echo "${f} is missing in your system, can't continue!" 1>&2
            broken=1
        fi
    done
    [ "$broken" ] && exit 1
}

check_build_requirements() {
    local found

    case "$XBPS_TARGET" in
        *bootstrap*) found=1;;
        *) ;;
    esac
    if [ -z "$found" ]; then
        xbps-uhelper cmpver "$XBPS_VERSION" "$XBPS_VERSION_REQ"
        if [ $? -eq 255 ]; then
            echo "ERROR: requires xbps>=${XBPS_VERSION_REQ}" 1>&2
            echo "Bootstrap packages must be updated with 'xbps-src bootstrap-update'" 1>&2
            exit 1
        fi
    fi
}

chroot_check() {
    if [ -f $XBPS_MASTERDIR/.xbps_chroot_init -o "$XBPS_CHROOT_CMD" = "ethereal" ]; then
        export CHROOT_READY=1
    fi
}

check_native_arch() {
    if [ "$CHROOT_READY" ]; then
        if [ -s $XBPS_MASTERDIR/.xbps_chroot_init ]; then
            export XBPS_ARCH=$(<$XBPS_MASTERDIR/.xbps_chroot_init)
        else
            export XBPS_ARCH=$(xbps-uhelper arch)
        fi
    else
        LDD=$(ldd --version 2>&1|head -1)
        if [[ $LDD == *musl* ]]; then
            export XBPS_ARCH=${XBPS_MACHINE%-musl}-musl
        else
            # XBPS_ARCH == $(uname -m)
            export XBPS_ARCH=$(uname -m)
        fi
    fi
}

masterdir_zap() {
    rm -rf "$XBPS_MASTERDIR"
    mkdir -p "$XBPS_MASTERDIR"
    msg_normal "xbps-src: $XBPS_MASTERDIR masterdir cleaned up.\n"
}

exit_func() {
    wait
    if [ "$sourcepkg" ]; then
        remove_pkg $XBPS_CROSS_BUILD
    fi
    if [ -z "$IN_CHROOT" ]; then
        msg_red "xbps-src: a failure has occurred! exiting...\n"
    fi
    exit 2
}

read_pkg() {
    if [ -z "${XBPS_TARGET_PKG}" ]; then
        [ ! -r ./template ] && msg_error "xbps-src: missing build template in $(pwd).\n"
        XBPS_TARGET_PKG=${PWD##*/}
    fi
    setup_pkg "$XBPS_TARGET_PKG" "$XBPS_CROSS_BUILD" "$1"
}

setup_distfiles_mirror() {
    local mirror scheme path

    # Scheme file:// mirror locations only work with uchroot or proot
    for mirror in $XBPS_DISTFILES_MIRROR; do
        scheme="file"
        if [[ "$mirror" == *://* ]]; then
            scheme="${mirror%%://*}"
            path="${mirror#${scheme}://}"
        else
            path="$mirror"
        fi
        [ "$scheme" != "file" ] && continue
        if [ "$XBPS_CHROOT_CMD" == "uchroot" -o "$XBPS_CHROOT_CMD" == "proot" ]; then
            if [ ! -d "$path" ]; then
                msg_warn "xbps-src: Invalid path in XBPS_DISTFILES_MIRROR ($mirror)\n"
                continue
            fi
            mkdir -p "$XBPS_MASTERDIR/$path"
            XBPS_CHROOT_CMD_ARGS+=" -b $path:$path"
        else
            msg_warn "xbps-src: File URLs ($mirror) don't work with '$XBPS_CHROOT_CMD'\n"
        fi
    done
}

#
# main()
#
readonly PROGNAME="${0##*/}"
readonly XBPS_VERSION_REQ="0.55"
XBPS_VERSION=$(xbps-uhelper -V)
XBPS_VERSION=${XBPS_VERSION%%API*}
XBPS_VERSION=${XBPS_VERSION##*:}
readonly XBPS_SRC_VERSION="113"
export XBPS_MACHINE=$(xbps-uhelper -C /dev/null arch)

XBPS_OPTIONS=
XBPS_OPTSTRING="1a:CEfgGhH:iIj:Lm:No:qQr:tV"

# Preprocess arguments in order to allow options before and after XBPS_TARGET.
eval set -- $(getopt "$XBPS_OPTSTRING" "$@");

# Options are saved as XBPS_ARG_FOO instead of XBPS_FOO for now; this is
# because configuration files may override those and we want arguments to
# take precedence over configuration files
while getopts "$XBPS_OPTSTRING" opt; do
    case $opt in
        1) XBPS_ARG_BUILD_ONLY_ONE_PKG=yes; XBPS_OPTIONS+=" -1";;
        a) XBPS_ARG_CROSS_BUILD="$OPTARG"; XBPS_OPTIONS+=" -a $OPTARG";;
        C) XBPS_ARG_KEEP_ALL=1; XBPS_OPTIONS+=" -C";;
        E) XBPS_ARG_BINPKG_EXISTS=1; XBPS_OPTIONS+=" -E";;
        f) XBPS_ARG_BUILD_FORCEMODE=1; XBPS_OPTIONS+=" -f";;
        G) XBPS_ARG_USE_GIT_REVS=1; XBPS_OPTIONS+=" -G";;
        g) XBPS_ARG_DEBUG_PKGS=1; XBPS_OPTIONS+=" -g";;
        H) XBPS_ARG_HOSTDIR="$OPTARG"; XBPS_OPTIONS+=" -H $OPTARG";;
        h) usage && exit 0;;
        i) XBPS_ARG_INFORMATIVE_RUN=1; XBPS_OPTIONS+=" -i";;
        I) XBPS_ARG_SKIP_DEPS=1; XBPS_OPTIONS+=" -I";;
        j) XBPS_ARG_MAKEJOBS="$OPTARG"; XBPS_OPTIONS+=" -j $OPTARG";;
        L) export NOCOLORS=1; XBPS_OPTIONS+=" -L";;
        m) XBPS_ARG_MASTERDIR="$OPTARG"; XBPS_OPTIONS+=" -m $OPTARG";;
        N) XBPS_ARG_SKIP_REMOTEREPOS=1; XBPS_OPTIONS+=" -N";;
        o) XBPS_ARG_PKG_OPTIONS="$OPTARG"; XBPS_OPTIONS+=" -o $OPTARG";;
        q) XBPS_ARG_QUIET=1; XBPS_OPTIONS+=" -q";;
        Q) XBPS_ARG_CHECK_PKGS=1; XBPS_OPTIONS+=" -Q";;
        r) XBPS_ARG_ALT_REPOSITORY="$OPTARG"; XBPS_OPTIONS+=" -r $OPTARG";;
        t) XBPS_ARG_TEMP_MASTERDIR=1; XBPS_OPTIONS+=" -t -C";;
        V) echo "xbps-src-$XBPS_SRC_VERSION $(xbps-uhelper -V)" && exit 0;;
        --) shift; break;;
    esac
done
shift $(($OPTIND - 1))

[ $# -eq 0 ] && usage && exit 1

# Check if stdout is a tty; if false disable colors.
test -t 1 || export NOCOLORS=1
# http://no-color.org
if [ "${NO_COLOR+x}" ]; then
    export NOCOLORS=1
fi

# sane umask
umask 022

#
# Check for required utilities in host system.
#
# Required utilities in host system for the bootstrap target.
readonly REQHOST_UTILS_BOOTSTRAP="make gawk bash bison sed gcc g++ msgfmt makeinfo \
    perl bsdtar xz gzip bzip2 patch flock flex libtool pkg-config"

# Required utilities in host.
readonly REQHOST_UTILS="xbps-install xbps-query xbps-rindex xbps-uhelper \
    xbps-reconfigure xbps-remove xbps-create xbps-uchroot xbps-uunshare"

check_reqhost_utils

#
# Set XBPS_CONFIG_FILE, XBPS_DISTDIR, XBPS_MASTERDIR
# and XBPS_HOSTDIR.
#
if [ "$IN_CHROOT" ]; then
    readonly XBPS_CONFIG_FILE=/etc/xbps/xbps-src.conf
    readonly XBPS_DISTDIR=/void-packages
    readonly XBPS_MASTERDIR=/
    readonly XBPS_HOSTDIR=/host
else
    _distdir="$(readlink -f ${0%/*})"
    if [ "${_distdir}" = "." ]; then
        readonly XBPS_DISTDIR="$(pwd -P)"
    else
        readonly XBPS_DISTDIR="${_distdir}"
    fi
    # Read defaults and then the local configuration file
    if [ -f $XBPS_DISTDIR/etc/defaults.conf ]; then
        . $XBPS_DISTDIR/etc/defaults.conf
    fi
    if [ -s $XBPS_DISTDIR/etc/conf ]; then
        # Read user configuration first...
        readonly XBPS_CONFIG_FILE=$XBPS_DISTDIR/etc/conf
    elif [ -s $HOME/.xbps-src.conf ]; then
        # ... fallback to ~/.xbps-src.conf otherwise.
        readonly XBPS_CONFIG_FILE=$HOME/.xbps-src.conf
    fi
fi
# Read settings from config file
[ -s "$XBPS_CONFIG_FILE" ] && . $XBPS_CONFIG_FILE &>/dev/null

# Set options passed on command line, after configuration files have been read
[ -n "$XBPS_ARG_BUILD_ONLY_ONE_PKG" ] && XBPS_BUILD_ONLY_ONE_PKG=yes
[ -n "$XBPS_ARG_SKIP_REMOTEREPOS" ] && XBPS_SKIP_REMOTEREPOS=1
[ -n "$XBPS_ARG_BUILD_FORCEMODE" ] && XBPS_BUILD_FORCEMODE=1
[ -n "$XBPS_ARG_INFORMATIVE_RUN" ] && XBPS_INFORMATIVE_RUN=1
[ -n "$XBPS_ARG_TEMP_MASTERDIR" ] && XBPS_TEMP_MASTERDIR=1
[ -n "$XBPS_ARG_BINPKG_EXISTS" ] && XBPS_BINPKG_EXISTS=1
[ -n "$XBPS_ARG_USE_GIT_REVS" ] && XBPS_USE_GIT_REVS=1
[ -n "$XBPS_ARG_CHECK_PKGS" ] && XBPS_CHECK_PKGS=1
[ -n "$XBPS_ARG_DEBUG_PKGS" ] && XBPS_DEBUG_PKGS=1
[ -n "$XBPS_ARG_SKIP_DEPS" ] && XBPS_SKIP_DEPS=1
[ -n "$XBPS_ARG_KEEP_ALL" ] && XBPS_KEEP_ALL=1
[ -n "$XBPS_ARG_QUIET" ] && XBPS_QUIET=1
[ -n "$XBPS_ARG_ALT_REPOSITORY" ] && XBPS_ALT_REPOSITORY="$XBPS_ARG_ALT_REPOSITORY"
[ -n "$XBPS_ARG_CROSS_BUILD" ] && XBPS_CROSS_BUILD="$XBPS_ARG_CROSS_BUILD"
[ -n "$XBPS_ARG_MAKEJOBS" ] && XBPS_MAKEJOBS="$XBPS_ARG_MAKEJOBS"

export XBPS_BUILD_ONLY_ONE_PKG XBPS_SKIP_REMOTEREPOS XBPS_BUILD_FORCEMODE \
       XBPS_INFORMATIVE_RUN XBPS_TEMP_MASTERDIR XBPS_BINPKG_EXISTS \
       XBPS_USE_GIT_REVS XBPS_CHECK_PKGS XBPS_DEBUG_PKGS XBPS_SKIP_DEPS \
       XBPS_KEEP_ALL XBPS_QUIET XBPS_ALT_REPOSITORY XBPS_CROSS_BUILD \
       XBPS_MAKEJOBS

# The masterdir/hostdir variables are forced and readonly in chroot
if [ -z "$IN_CHROOT" ]; then
    [ -n "$XBPS_ARG_MASTERDIR" ] && XBPS_MASTERDIR="$XBPS_ARG_MASTERDIR"
    [ -n "$XBPS_ARG_HOSTDIR" ] && XBPS_HOSTDIR="$XBPS_ARG_HOSTDIR"

    # Sanitize masterdir/hostdir once set for real (resolve links)
    export XBPS_MASTERDIR="$(readlink -f $XBPS_MASTERDIR 2>/dev/null)"
    export XBPS_HOSTDIR="$(readlink -f $XBPS_HOSTDIR 2>/dev/null)"
fi

# If pkg options were set in config(s), merge them with command line
if [ -n "$XBPS_ARG_PKG_OPTIONS" ]; then
    if [ -n "$XBPS_PKG_OPTIONS" ]; then
        export XBPS_PKG_OPTIONS+=",$XBPS_ARG_PKG_OPTIONS"
    else
        export XBPS_PKG_OPTIONS="$XBPS_ARG_PKG_OPTIONS"
    fi
fi

# Forbid root unless XBPS_ALLOW_CHROOT_BREAKOUT is set
# (for travis CI).
if [ -z "$IN_CHROOT" -a "$UID" -eq 0 -a -z "$XBPS_ALLOW_CHROOT_BREAKOUT" ]; then
    echo "ERROR: xbps-src cannot be used as root." 1>&2
    exit 1
fi

# if XBPS_MASTERDIR unset, defaults to $XBPS_DISTDIR/masterdir.
: ${XBPS_MASTERDIR:=$XBPS_DISTDIR/masterdir}
[ ! -d $XBPS_MASTERDIR ] &&  mkdir -p $XBPS_MASTERDIR

# if XBPS_HOSTDIR unset, defaults to $XBPS_DISTDIR/hostdir.
: ${XBPS_HOSTDIR:=$XBPS_DISTDIR/hostdir}
[ ! -d $XBPS_HOSTDIR ] && mkdir -p $XBPS_HOSTDIR

if [ -d "$XBPS_MASTERDIR" -a ! -w "$XBPS_MASTERDIR" ]; then
    echo "ERROR: can't write to masterdir $XBPS_MASTERDIR." 1>&2
    exit 1
fi

# Try using chroot-git then git from the host system
if command -v chroot-git &>/dev/null; then
    XBPS_GIT_CMD=$(command -v chroot-git)
elif command -v git &>/dev/null; then
    XBPS_GIT_CMD=$(command -v git)
else
    echo "neither chroot-git or git are available in your system!" 1>&2
    exit 1
fi
readonly XBPS_GIT_CMD

if [ -n "$XBPS_HOSTDIR" ]; then
    export XBPS_REPOSITORY=$XBPS_HOSTDIR/binpkgs
    readonly XBPS_SRCDISTDIR=$XBPS_HOSTDIR/sources
else
    export XBPS_REPOSITORY=$XBPS_MASTERDIR/host/binpkgs
    readonly XBPS_SRCDISTDIR=$XBPS_MASTERDIR/host/sources
fi

# Set XBPS_REPOSITORY to our current branch.
if [ -z "$XBPS_ALT_REPOSITORY" ]; then
    pushd "$PWD" &>/dev/null
    cd $XBPS_DISTDIR
    _gitbranch="$($XBPS_GIT_CMD symbolic-ref --short HEAD 2>/dev/null)"
    if [ "${_gitbranch}" -a "${_gitbranch}" != "master" ]; then
        export XBPS_ALT_REPOSITORY="${_gitbranch}"
        export XBPS_REPOSITORY="${XBPS_REPOSITORY}/${_gitbranch}"
     fi
     popd &>/dev/null
else
    export XBPS_REPOSITORY="${XBPS_REPOSITORY}/${XBPS_ALT_REPOSITORY}"
fi

readonly XBPS_SRCPKGDIR=$XBPS_DISTDIR/srcpkgs
readonly XBPS_COMMONDIR=$XBPS_DISTDIR/common
readonly XBPS_SHUTILSDIR=$XBPS_COMMONDIR/xbps-src/shutils
readonly XBPS_TRIGGERSDIR=$XBPS_SRCPKGDIR/xbps-triggers/files
readonly XBPS_CROSSPFDIR=$XBPS_COMMONDIR/cross-profiles
readonly XBPS_BUILDSTYLEDIR=$XBPS_COMMONDIR/build-style
readonly XBPS_LIBEXECDIR=$XBPS_COMMONDIR/xbps-src/libexec
readonly XBPS_BUILDHELPERDIR=$XBPS_COMMONDIR/build-helper

readonly XBPS_TARGET="$1"
if [ "$2" ]; then
    XBPS_TARGET_PKG="${2##*/}"
fi

# Check for CHROOT_READY and set up XBPS_ARCH environment var for xbps.
chroot_check
check_native_arch

# test if to use linux32 for 32-bit masterdirs in 64-bit environments
# x86_64, ppc64 (BE) and aarch64 are capable of this, others are not
linux32_check() {
    local hostarch="$1"
    local tgtarch="$2"
    case "$hostarch" in
        x86_64*) if [[ "$tgtarch" == i686* ]]; then return 0; fi ;;
        ppc64le*) return 1 ;;
        ppc64*)
            case "$tgtarch" in
                ppc64*) return 1 ;;
                ppc*) return 0 ;;
            esac
            ;;
        aarch64*) if [[ "$tgtarch" == armv* ]]; then return 0; fi ;;
    esac
    return 1
}

# Reconfigure pkgs for 32bit on 64-bit systems and reexec itself.
if [ -z "$XBPS_REINIT" -a -s $XBPS_MASTERDIR/.xbps_chroot_init ]; then
    export XBPS_ARCH=${XBPS_ARCH:-$(<$XBPS_MASTERDIR/.xbps_chroot_init)}
    if linux32_check "$XBPS_MACHINE" "$XBPS_ARCH"; then
        # reconfigure pkgs via linux32
        linux32 xbps-reconfigure -r ${XBPS_MASTERDIR} -a &>/dev/null
        # reexec itself via linux32
        export XBPS_REINIT=1
        exec linux32 $0 ${XBPS_OPTIONS} $@
    fi
fi
if [ "$XBPS_ARCH" ]; then
    export XBPS_MACHINE=$XBPS_ARCH
fi
# At this point if XBPS_TARGET_MACHINE isn't defined we assume
# it's a native build.
if [ -z "$XBPS_TARGET_MACHINE" ]; then
        export XBPS_TARGET_MACHINE=$XBPS_MACHINE
fi

if [ "$IN_CHROOT" ]; then
    readonly XBPS_UHELPER_CMD="xbps-uhelper"
    readonly XBPS_INSTALL_CMD="xbps-install -c /host/repocache-$XBPS_MACHINE"
    readonly XBPS_QUERY_CMD="xbps-query -c /host/repocache-$XBPS_MACHINE"
    readonly XBPS_RECONFIGURE_CMD="xbps-reconfigure"
    readonly XBPS_REMOVE_CMD="xbps-remove"
    readonly XBPS_CHECKVERS_CMD="xbps-checkvers"
    readonly XBPS_DESTDIR=/destdir
    readonly XBPS_BUILDDIR=/builddir
else
    readonly XBPS_UHELPER_CMD="xbps-uhelper -r $XBPS_MASTERDIR"
    readonly XBPS_INSTALL_CMD="xbps-install -c $XBPS_HOSTDIR/repocache-$XBPS_MACHINE -r $XBPS_MASTERDIR"
    readonly XBPS_QUERY_CMD="xbps-query -c $XBPS_HOSTDIR/repocache-$XBPS_MACHINE -r $XBPS_MASTERDIR"
    readonly XBPS_RECONFIGURE_CMD="xbps-reconfigure -r $XBPS_MASTERDIR"
    readonly XBPS_REMOVE_CMD="xbps-remove -r $XBPS_MASTERDIR"
    readonly XBPS_CHECKVERS_CMD="xbps-checkvers -r $XBPS_MASTERDIR"
    readonly XBPS_DESTDIR=$XBPS_MASTERDIR/destdir
    readonly XBPS_BUILDDIR=$XBPS_MASTERDIR/builddir
fi
readonly XBPS_RINDEX_CMD="xbps-rindex"
readonly XBPS_FETCH_CMD="xbps-fetch"
readonly XBPS_DIGEST_CMD="xbps-digest"
readonly XBPS_CMPVER_CMD="xbps-uhelper cmpver"

export XBPS_SHUTILSDIR XBPS_CROSSPFDIR XBPS_TRIGGERSDIR \
    XBPS_SRCPKGDIR XBPS_COMMONDIR XBPS_BUILDDIR \
    XBPS_REPOSITORY XBPS_ALT_REPOSITORY XBPS_SRCDISTDIR XBPS_DIGEST_CMD \
    XBPS_UHELPER_CMD XBPS_INSTALL_CMD XBPS_QUERY_CMD XBPS_BUILD_ONLY_ONE_PKG \
    XBPS_RINDEX_CMD XBPS_RECONFIGURE_CMD XBPS_REMOVE_CMD XBPS_CHECKVERS_CMD \
    XBPS_CMPVER_CMD XBPS_FETCH_CMD XBPS_VERSION XBPS_BUILDSTYLEDIR \
    XBPS_CPPFLAGS XBPS_CFLAGS XBPS_CXXFLAGS XBPS_FFLAGS XBPS_LDFLAGS \
    XBPS_MAKEJOBS XBPS_BUILD_FORCEMODE XBPS_USE_GIT_REVS XBPS_DEBUG_PKGS \
    XBPS_CHECK_PKGS XBPS_CCACHE XBPS_DISTCC XBPS_DISTCC_HOSTS XBPS_SKIP_DEPS \
    XBPS_SKIP_REMOTEREPOS XBPS_CROSS_BUILD XBPS_PKG_OPTIONS XBPS_CONFIG_FILE \
    XBPS_KEEP_ALL XBPS_HOSTDIR XBPS_MASTERDIR XBPS_SRC_VERSION \
    XBPS_DESTDIR XBPS_MACHINE XBPS_TEMP_MASTERDIR XBPS_BINPKG_EXISTS \
    XBPS_LIBEXECDIR XBPS_DISTDIR XBPS_DISTFILES_MIRROR XBPS_ALLOW_RESTRICTED \
    XBPS_USE_GIT_COMMIT_DATE XBPS_PKG_COMPTYPE XBPS_REPO_COMPTYPE XBPS_BUILDHELPERDIR

for i in REPOSITORY DESTDIR BUILDDIR SRCDISTDIR; do
    eval val="\$XBPS_$i"
    if [ ! -d "$val" ]; then
        mkdir -p $val
    fi
    unset val
done

# A temporary masterdir requires xbps-uchroot(1) and -O to use overlayfs
# on tmpfs (available with xbps-0.45).
if [ -z "$IN_CHROOT" -a -n "$XBPS_TEMP_MASTERDIR" ]; then
    export XBPS_CHROOT_CMD="uchroot"
    export XBPS_CHROOT_CMD_ARGS+=" -O"
fi
#
# Sanitize PATH.
#
if [ -z "$IN_CHROOT" ]; then
    # In non chroot case always prefer host tools.
    export PATH="$PATH:$XBPS_MASTERDIR/usr/bin"
fi

#
# Set up ccache
#
if [ "$XBPS_CCACHE" ]; then
    export CCACHEPATH="/usr/lib/ccache/bin"
    export CCACHE_DIR="$XBPS_HOSTDIR/ccache"
    # Avoid not using cached files just due to compiler mtime
    # changes when e.g. bootstrapping
    export CCACHE_COMPILERCHECK=content CCACHE_COMPRESS=1
    export PATH="$CCACHEPATH:$PATH"
    mkdir -p $CCACHE_DIR
fi

#
# Set up distcc
#
if [ "$XBPS_DISTCC" ]; then
    if [ "$XBPS_CCACHE" ]; then
        export CCACHE_PREFIX="/usr/bin/distcc"
    else
        DISTCCPATH="/usr/lib/distcc/bin"
        export PATH="$DISTCCPATH:$PATH"
    fi
    export DISTCC_DIR="$XBPS_HOSTDIR/distcc-${XBPS_CROSS_BUILD:-${XBPS_MACHINE}}"
    export DISTCC_HOSTS="$XBPS_DISTCC_HOSTS"
    mkdir -p $DISTCC_DIR
fi

check_build_requirements

if [ -z "$IN_CHROOT" ]; then
    trap 'exit_func' INT TERM
    if [ -n "$XBPS_DISTFILES_MIRROR" ]; then
        setup_distfiles_mirror
    fi
fi
#
# Read funcs from helpers
#
for f in ${XBPS_SHUTILSDIR}/*.sh; do
    [ -r "$f" ] && . $f
done

reconfigure_base_chroot

#
# Main switch.
#
case "$XBPS_TARGET" in
    binary-bootstrap)
        install_base_chroot ${XBPS_TARGET_PKG:=$XBPS_MACHINE}
        ;;
    bootstrap)
        # base-chroot building on host
        # check for required host utils
        check_reqhost_utils bootstrap
        (
            export XBPS_ARCH=$XBPS_MACHINE
            export XBPS_SKIP_REMOTEREPOS=1
            chroot_sync_repodata
            $XBPS_LIBEXECDIR/build.sh \
                base-chroot base-chroot $XBPS_TARGET || exit 1
        ) || exit 1
        [ -d $XBPS_MASTERDIR ] && rm -rf $XBPS_MASTERDIR
        install_base_chroot ${XBPS_TARGET_PKG:=$XBPS_MACHINE}
        ;;
    bootstrap-update)
        if [ -n "$CHROOT_READY" -a -z "$IN_CHROOT" ]; then
            chroot_handler bootstrap-update
        else
            chroot_sync_repodata
            update_base_chroot
        fi
        ;;
    chroot)
        chroot_sync_repodata
        chroot_handler chroot dummy
        ;;
    clean)
        if [ -z "$XBPS_TARGET_PKG" ]; then
            if [ -n "$CHROOT_READY" -a -z "$IN_CHROOT" ]; then
                chroot_handler remove-autodeps
            else
                remove_pkg_autodeps
            fi
            msg_normal "xbps-src: cleaning up masterdir...\n"
            # Needed to remove Go Modules
            [ -d $XBPS_MASTERDIR/builddir ] && chmod -R +wX $XBPS_MASTERDIR/builddir
            rm -rf $XBPS_MASTERDIR/builddir $XBPS_MASTERDIR/destdir
            rm -f $XBPS_MASTERDIR/tmp/* >/dev/null 2>&1
        else
            read_pkg
            if [ -n "$CHROOT_READY" -a -z "$IN_CHROOT" ]; then
                chroot_handler $XBPS_TARGET $XBPS_TARGET_PKG || exit $?
            else
                remove_pkg_wrksrc $wrksrc
                remove_pkg_statedir
                if declare -f do_clean >/dev/null; then
                    run_func do_clean
                fi
            fi
            remove_pkg $XBPS_CROSS_BUILD
        fi
        ;;
    clean-repocache)
        export XBPS_TARGET_ARCH="${XBPS_CROSS_BUILD:-$XBPS_TARGET_MACHINE}"
        $XBPS_REMOVE_CMD -C /dev/null -c $XBPS_HOSTDIR/repocache-${XBPS_TARGET_ARCH} -O
        ;;
    consistency-check)
        consistency_check
        ;;
    remove-autodeps)
        if [ -n "$CHROOT_READY" -a -z "$IN_CHROOT" ]; then
            chroot_handler remove-autodeps
        else
            remove_pkg_autodeps
        fi
        ;;
    fetch|extract|patch|configure|build|check|install|pkg)
        if [ "$XBPS_TARGET" = "check" ]; then
            export XBPS_CHECK_PKGS=1
        fi
        read_pkg
        if [ -n "$CHROOT_READY" -a -z "$IN_CHROOT" ]; then
            chroot_handler $XBPS_TARGET $XBPS_TARGET_PKG
        else
            chroot_sync_repodata
            # prevent update_base_chroot from removing the builddir/destdir
            update_base_chroot keep-all-force
            $XBPS_LIBEXECDIR/build.sh $XBPS_TARGET_PKG $XBPS_TARGET_PKG \
                $XBPS_TARGET $XBPS_CROSS_BUILD || exit $?
        fi
        ;;
    remove|remove-destdir)
        read_pkg
        remove_pkg $XBPS_CROSS_BUILD
        ;;
    list)
        $XBPS_QUERY_CMD -l
        ;;
    purge-distfiles)
        purge_distfiles
        ;;
    show)
        read_pkg ignore-problems
        show_pkg
        ;;
    show-avail)
        read_pkg &>/dev/null
        show_avail
        ;;
    show-files)
        read_pkg ignore-problems
        show_pkg_files
        ;;
    show-deps)
        read_pkg ignore-problems
        show_pkg_deps
        ;;
    show-build-deps)
        read_pkg ignore-problems
        show_pkg_build_deps
        ;;
    show-hostmakedepends)
        read_pkg ignore-problems
        show_pkg_hostmakedepends
        ;;
    show-makedepends)
        read_pkg ignore-problems
        show_pkg_makedepends
        ;;
    show-pkg-var)
        read_pkg ignore-problems
        for sub_name in $subpackages; do
            if [ $sub_name = $XBPS_TARGET_PKG ]; then
                ${sub_name}_package
            fi
        done
	while IFS= read -r pkg_var; do
		print_var=
		case "${pkg_var}" in
		    bootstrap) print_var="$bootstrap ";;
		    broken) print_var="$broken ";;
		    depends) print_var="$depends ";;
		    hostmakedepends) print_var="$hostmakedepends ";;
		    makedepends) print_var="$makedepends ";;
		    nocross) print_var="$nocross ";;
		    pkgname) print_var="$pkgname ";;
		    restricted) print_var="$restricted ";;
		    revision) print_var="$revision ";;
		    subpackages) print_var="$subpackages ";;
		    version) print_var="$version ";;
		    provides) print_var="$provides ";;
		    lib32disabled) print_var="$lib32disabled ";;
		    nodebug) print_var="$nodebug ";;
		esac # the space at the end of each is essential for unset vars
		if [ -n "$print_var" ]; then
			printf "%s\n" "$(printf "${print_var% }" | tr -t '\n\r' ' ')"
		fi # The trailing space gets stripped before printing anyway
	done
        ;;
    show-options)
        read_pkg ignore-problems
        show_pkg_build_options
        ;;
    show-shlib-provides)
        read_pkg ignore-problems
        show_pkg_shlib_provides
        ;;
    show-shlib-requires)
        read_pkg ignore-problems
        show_pkg_shlib_requires
        ;;
    show-var)
        for f in ${XBPS_COMMONDIR}/environment/setup/*.sh; do
            source $f
        done
        source ${XBPS_COMMONDIR}/build-profiles/${XBPS_MACHINE}.sh
        eval value="\${$XBPS_TARGET_PKG}"
        echo $value
        ;;
    show-repo-updates)
        bulk_build
        ;;
    show-sys-updates)
        bulk_build -I
        ;;
    sort-dependencies)
        bulk_sortdeps ${@/$XBPS_TARGET/}
        ;;
    update-bulk)
        bulk_update
        ;;
    update-sys)
        bulk_update -I
        ;;
    update-check)
        read_pkg ignore-problems
        update_check
        ;;
    update-hash-cache)
        update_hash_cache
        ;;
    zap)
        masterdir_zap
        ;;
    *)
        msg_red "xbps-src: invalid target $XBPS_TARGET.\n"
        usage && exit 1
        ;;
esac

exit_and_cleanup $?