File: pbuilder-buildpackage

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pbuilder 0.231.1
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#! /bin/bash
#   pbuilder -- personal Debian package builder
#   Copyright © 2001-2007 Junichi Uekawa <dancer@debian.org>
#               2015      Mattia Rizzolo <mattia@debian.org>
#
#   This program is free software; you can redistribute it and/or modify
#   it under the terms of the GNU General Public License as published by
#   the Free Software Foundation; either version 2 of the License, or
#   (at your option) any later version.
#
#   This program is distributed in the hope that it will be useful,
#   but WITHOUT ANY WARRANTY; without even the implied warranty of
#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#   GNU General Public License for more details.
#
#   You should have received a copy of the GNU General Public License
#   along with this program; if not, write to the Free Software
#   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
###############################################################################


export LANG=C
export LC_ALL=C
set -e

. "${BASH_SOURCE%/*}/pbuilder-checkparams"
. "${BASH_SOURCE%/*}/pbuilder-buildpackage-funcs"

PACKAGENAME="$1"
if [ ! -f "$PACKAGENAME" ]; then
    log.e "Source package [$PACKAGENAME] does not exist"
    exit 1;
fi;
if [ "${PACKAGENAME:(-4)}" != ".dsc" ]; then
    log.e "The given filename does not seems to be the name of a Debian source package."
    log.e "You need to pass a file ending with .dsc (given '$PACKAGENAME')."
    exit 1
fi
shift
if [ -n "$*" ]; then
    log.w "The following options specified after the .dsc will be ignored: [$@]"
fi

if [ -n "$BUILDUSERNAME" -a -n "$BUILDUSERID" ]; then
    # Command to SU to user.
    # LD_PRELOAD: Normal users don't have write access to build
    # environment, so cowdancer shouldn't have to run, and fakeroot
    # should be running later, so it shouldn't matter.
    # LOGNAME and USER: set this to shut up some tools.
    SUTOUSER="LD_PRELOAD= LOGNAME=$BUILDUSERNAME USER=$BUILDUSERNAME /sbin/start-stop-daemon --start --pidfile /dev/null --chuid $BUILDUSERNAME --startas /bin/sh"
else
    # run the build in root
    BUILDUSERID=0
    BUILDUSERNAME=root
    SUTOUSER="LOGNAME=$BUILDUSERNAME /bin/sh"
fi

UNSHARE=
case $USENETWORK in
    yes)
        if [ "$DEB_BUILD_ARCH_OS" = "linux" ]; then
            # omit the warning when running on kFreeBSD or Hurd
            log.w "pbuilder: network will not be disabled during build!"
        fi
        ;;
    *)
        if unshare -n -- /usr/lib/pbuilder/pbuilder-unshare-wrapper true; then
            USENETWORK=no
            UNSHARE="unshare -n -- /usr/lib/pbuilder/pbuilder-unshare-wrapper"
            log.i "pbuilder: network access will be disabled during build"
        else
            USENETWORK=yes
            if [ "$DEB_BUILD_ARCH_OS" = "linux" ]; then
                log.w "pbuilder: unshare CLONE_NEWNET not available"
            fi
            log.i "pbuilder: network access is available during build!"
        fi
        ;;
esac


# created files should have these UID/GIDs outside of chroot.
BUILDRESULTUID="${BUILDRESULTUID:-${SUDO_UID:-0}}"
BUILDRESULTGID="${BUILDRESULTGID:-${SUDO_GID:-0}}"

echobacktime
extractbuildplace 
trap umountproc_cleanbuildplace_trap exit sighup sigpipe

if [ ! -d "${BUILDRESULT}" ]; then
    if [ -n "${BUILDRESULT}" ] ; then
        mkdir -p "${BUILDRESULT}"
    fi
    if [ -d "${BUILDRESULT}" ]; then
        log.i "created buildresult dir: ${BUILDRESULT}"
    else
        log.e "failed creating buildresult dir: ${BUILDRESULT}"
        exit 1
    fi
fi

if [ -z "${PBUILDER_BUILD_LOGFILE}" ]; then
    if [ "${PKGNAME_LOGFILE}" = "yes" ]; then
        PBUILDER_BUILD_LOGFILE="${BUILDRESULT}/$(basename "${PACKAGENAME}" .dsc)${PKGNAME_LOGFILE_EXTENSION}"
        exec > >(tee "${PBUILDER_BUILD_LOGFILE}") 2>&1
        PBUILDER_BUILD_LOGFILE=$(readlink -f "${PBUILDER_BUILD_LOGFILE}")
        log.i "Using pkgname logfile"
        echobacktime
    fi
fi

# make logfile have the permissions, logfiles should already be created in all cases
if [ -f "${PBUILDER_BUILD_LOGFILE}" ]; then
    chown "${BUILDRESULTUID}:${BUILDRESULTGID}" "${PBUILDER_BUILD_LOGFILE}"
fi

cross_build_setup
recover_aptcache
createbuilduser
CCACHE_ENV=
setup_ccache
SUTOUSER="$CCACHE_ENV $SUTOUSER"
log.i "Copying source file"
copydsc "$PACKAGENAME" "${BUILDPLACE}$BUILDDIR"
copyinputfile "${BUILDPLACE}$BUILDDIR"

# don't allow empty values of BUILDSUBDIR
if package_version_is_older_than dpkg-dev 1.13.19; then
        # dpkg-source back then (2005-06-12) didn't allow to specify the
        # extraction directory.
        if [ -n "${BUILDSUBDIR:-}" ]; then
            log.w "dpkg is too old in the chroot, can't use the specified BUILDSUBDIR"
        fi
        cannot_change_subdir=yes
        BUILDSUBDIR=
fi
# this really needs to be retested here, as BUILDSUBDIR *needs* to be set properly
if [ -z "${BUILDSUBDIR:-}" ]; then
    BUILDSUBDIR="$(dsc_get_basename "$PACKAGENAME" "no")"
    BUILDSUBDIR="${BUILDSUBDIR//_/-}"
fi

log.i "Extracting source"
if echo "chown $BUILDUSERNAME:$BUILDUSERNAME $BUILDDIR $BUILDDIR/*" | $CHROOTEXEC /bin/bash; then
    : # success
else
    log.e "pbuilder: Failed chowning to $BUILDUSERNAME:$BUILDUSERNAME"
    exit 1;
fi
if echo "( cd $BUILDDIR; env PATH=\"$PATH\" dpkg-source -x $(basename "$PACKAGENAME") $( [ -z "$cannot_change_subdir" ] && echo "$BUILDSUBDIR") )" | $UNSHARE $CHROOTEXEC env $SUTOUSER ; then
    : # success
else
    log.e "pbuilder: Failed extracting the source"
    exit 1;
fi

RRR="$(get822field Rules-Requires-Root "$BUILDPLACE/$BUILDDIR/$BUILDSUBDIR/debian/control")"
if [[ "${RRR,,}" != no ]] || package_version_is_older_than dpkg-dev 1.19.0; then
    if package_version_is_older_than dpkg-dev  1.14.7 ; then
        DEBBUILDOPTS="${DEBBUILDOPTS:+$DEBBUILDOPTS }-rfakeroot"
    fi
    EXTRAPACKAGES="${EXTRAPACKAGES} fakeroot"
    log.i "using fakeroot in build."
else
    log.i "Not using root during the build."
fi

log.i "Installing the build-deps"
executehooks "D"
trap saveaptcache_umountproc_cleanbuildplace_trap exit sighup sigpipe
checkbuilddep "$PACKAGENAME"
save_aptcache
trap umountproc_cleanbuildplace_trap exit sighup sigpipe

# This potentially gets modified by binNMU so must come first
CHANGES_BASENAME=$(dsc_get_basename "$PACKAGENAME" "yes")

binNMU

log.i "Building the package"

executehooks "A"

ENV_PREFIX="env PATH=\"$PATH\" HOME=\"$BUILD_HOME\""
DPKG_COMMANDLINE="$ENV_PREFIX dpkg-buildpackage -us -uc $DEBBUILDOPTS"

if [ "${SOURCE_ONLY_CHANGES}" = "yes" ]; then
    DPKG_COMMANDLINE="$DPKG_COMMANDLINE && $ENV_PREFIX dpkg-genchanges -S $(get_changes_options) > ../${CHANGES_BASENAME}_source.changes"
fi

# https://launchpad.net/bugs/816556
unset DISPLAY

if [ "$USENETWORK" = "no" ]; then
    # empty /etc/resolv.conf, so software trying to resolv addresses even when
    # no network is possible doesn't choke.
    rm -f "$BUILDPLACE/etc/resolv.conf" # break hardlinks
    : > "$BUILDPLACE/etc/resolv.conf"
    # loopback access only
    rm -f "$BUILDPLACE/etc/hosts" # break hardlinks

    etchostslines=(
        "127.0.0.1 localhost localhost.localdomain"
        "127.0.1.1 $(hostname -f) $(hostname)"
        "::1     ip6-localhost ip6-loopback localhost6 localhost6.localdomain6"
        "fe00::0 ip6-localnet"
        "ff00::0 ip6-mcastprefix"
        "ff02::1 ip6-allnodes"
        "ff02::2 ip6-allrouters"
        "ff02::3 ip6-allhosts"
    )
    printf '%s\n' "${etchostslines[@]}" >> "$BUILDPLACE/etc/hosts"
fi

(
    : Build process
    if [ -n "$TWICE" ]; then
        DPKG_COMMANDLINE="$DPKG_COMMANDLINE && $DPKG_COMMANDLINE"
    fi
    DPKG_COMMANDLINE="cd ${BUILDDIR}/$BUILDSUBDIR/ && $DPKG_COMMANDLINE"
    log.i "Running $DPKG_COMMANDLINE"
    echo "$DPKG_COMMANDLINE" | $UNSHARE $CHROOTEXEC env $SUTOUSER
) &
BUILD_PID=$!
if [ -n "${TIMEOUT_TIME}" ]; then
    (
        : Timeout process
        sleep "${TIMEOUT_TIME}"
        log.i "Terminating build process due to timeout "
        kill "${BUILD_PID}" || true
    ) & # timeout process
    KILL_WAIT_PID="kill $! || true; echo \"I: Terminate timeout process\"; "
else
    KILL_WAIT_PID=""
fi

if ! wait "${BUILD_PID}"; then
    trap umountproc_cleanbuildplace_trap exit sighup sigpipe
    eval "${KILL_WAIT_PID}"
    if [ "$USENETWORK" = "no" ]; then
        copy_local_configuration resolv.conf
    fi
    log.e "Failed autobuilding of package"
    if [ -d "${BUILDRESULT}" ]; then
        export_additional_buildresults
    else
        log.e "BUILDRESULT=[$BUILDRESULT] is not a directory."
    fi
    executehooks "C"
    exit 1;
else
    eval ${KILL_WAIT_PID}
    # build was successful
fi

if [ "$USENETWORK" = "no" ]; then
    copy_local_configuration resolv.conf
fi

CHANGES_ARCHITECTURE=${HOST_ARCH:-$($CHROOTEXEC dpkg-architecture -qDEB_HOST_ARCH)}

# dpkg pre-1.18.8 generated _$arch.changes even for indep-only builds,
# so search for both.
INDEP_CHANGES_FILE="${BUILDPLACE}$BUILDDIR/${CHANGES_BASENAME}_all.changes"
if [ "${BINARY_ARCH}" = "all" -a -f "${INDEP_CHANGES_FILE}" ]; then
    ARCH_CHANGES_FILE="$INDEP_CHANGES_FILE"
else
    ARCH_CHANGES_FILE="${BUILDPLACE}$BUILDDIR/${CHANGES_BASENAME}_${CHANGES_ARCHITECTURE}.changes"

    if [ ! -f "${ARCH_CHANGES_FILE}" ]; then
        log.e "Missing changes file: ${ARCH_CHANGES_FILE}"
        exit 1
    fi
fi

SOURCE_CHANGES_FILE="${BUILDPLACE}$BUILDDIR/${CHANGES_BASENAME}_source.changes"

if [ "${SOURCE_ONLY_CHANGES}" = "yes" -a ! -f "${SOURCE_CHANGES_FILE}" ]; then
    log.e "Missing source-only changes file: ${SOURCE_CHANGES_FILE}"
    exit 1
fi

executehooks "B"

if [ -d "${BUILDRESULT}" ]; then
    chown "${BUILDRESULTUID}:${BUILDRESULTGID}" "${BUILDPLACE}$BUILDDIR/"*
    if [ "${SOURCE_ONLY_CHANGES}" = "yes" ]; then
        FILES=$( ( get822files "changes" "$ARCH_CHANGES_FILE" && get822files "changes" "$SOURCE_CHANGES_FILE" ) | sort -u)
    else
        FILES=$(get822files "changes" "$ARCH_CHANGES_FILE")
    fi
    while read -r FILE; do
        if [ -f "${FILE}" ]; then
            cp -p "${FILE}" "${BUILDRESULT}" || true
        else
            log.w "Expected file $FILE not found, skipping."
        fi
    done <<< "${FILES}"
    export_additional_buildresults
    executehooks "I"
else
    log.e "BUILDRESULT=[$BUILDRESULT] is not a directory."
fi

# final cleanup
trap umountproc_cleanbuildplace_trap exit sighup sigpipe
save_aptcache
trap cleanbuildplace_trap exit sighup sigpipe
umountproc
:
cleanbuildplace
trap - exit sighup sigpipe
echobacktime
exit 0