File build-pkg-arch of Package build

#
# Arch specific functions.
#
################################################################
#
# Copyright (c) 1995-2014 SUSE Linux Products GmbH
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2 or 3 as
# published by the Free Software Foundation.
#
# 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 (see the file COPYING); if not, write to the
# Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
#
################################################################

pkg_initdb_arch() {
    mkdir -p $BUILD_ROOT/var/lib/pacman/sync
    touch $BUILD_ROOT/var/lib/pacman/sync/core.db
    touch $BUILD_ROOT/var/lib/pacman/sync/extra.db
    touch $BUILD_ROOT/var/lib/pacman/sync/community.db
}

pkg_prepare_arch() {
    :
}

pkg_erase_arch() {
    ( cd $BUILD_ROOT && chroot $BUILD_ROOT pacman -R -n -d -d --noconfirm $PKG 2>&1 || touch $BUILD_ROOT/exit ) | \
	perl -ne '$|=1;/^(Total Removed Size: |Packages \(\d+\):|:: Do you want to remove these packages|deleting |removing |    )/||/^$/||print'
}

pkg_verify_installed_arch() {
    return 1
}

pkg_cumulate_arch() {
    return 1
}

pkg_install_arch() {
    # Pacman can't handle chroot
    # https://bbs.archlinux.org/viewtopic.php?id=129661
    (cd $BUILD_ROOT/etc && sed -i "s/^CheckSpace/#CheckSpace/g" pacman.conf)
    # -d -d disables deps checking
    ( cd $BUILD_ROOT && chroot $BUILD_ROOT pacman -U --overwrite '*' -d -d --noconfirm .init_b_cache/$PKG.$PSUF 2>&1 || touch $BUILD_ROOT/exit ) | \
	perl -ne '$|=1;/^(warning: could not get filesystem information for |loading packages|looking for inter-conflicts|looking for conflicting packages|Targets |Total Installed Size: |Net Upgrade Size: |Proceed with installation|checking package integrity|loading package files|checking for file conflicts|checking keyring|Packages \(\d+\)|:: Proceed with installation|:: Processing package changes|checking available disk space|installing |upgrading |warning:.*is up to date -- reinstalling|Optional dependencies for|    )/||/^$/||print'
}

pkg_finalize_arch() {
    :
}

pkg_preinstall_arch() {
    mkdir -p "$BUILD_INIT_CACHE/scripts"
    $TAR < "$BUILD_INIT_CACHE/rpms/$PKG.arch"
    rm -rf "$BUILD_INIT_CACHE/scripts/$PKG.post"
    if test -e "$BUILD_INIT_CACHE/scripts/$PKG.run" -a -f .INSTALL -a ! -L .INSTALL ; then
	cat .INSTALL > "$BUILD_INIT_CACHE/scripts/$PKG.post"
	echo 'type post_install >/dev/null 2>&1 && post_install' >> "$BUILD_INIT_CACHE/scripts/$PKG.post"
    fi
    rm -rf .PKGINFO .INSTALL
}

pkg_runscripts_arch() {
    if test -e "$BUILD_INIT_CACHE/scripts/$PKG.post" ; then
	echo "running $PKG postinstall script"
	( cd $BUILD_ROOT && chroot $BUILD_ROOT ".init_b_cache/scripts/$PKG.post" < /dev/null )
	rm -f "$BUILD_INIT_CACHE/scripts/$PKG.post"
    fi
}