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#!/usr/bin/env bash
#
# dagpkg - create a directed graph of package dependencies and build
# them in topological order
#
# (c) 2014 Nicolás Reynolds <fauno@parabola.nu>
# Michał Masłowski <mtjm@mtjm.eu>
#
# 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 3 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 Affero General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
set -e
# Source variables from libretools
source /etc/libretools.conf
source $XDG_CONFIG_HOME/libretools/libretools.conf &>/dev/null || true
# Source variables from makepkg
source /etc/makepkg.conf
source $XDG_CONFIG_HOME/.makepkg.conf &>/dev/null || true
# End inmediately but print an useful message
trap_exit() {
term_title "error!"
error "(%s) %s (leftovers on %s)" \
"${0##*/}" "$@" "${temp_dir}"
exit 1
}
# Trap signals from makepkg
trap 'trap_exit "TERM signal caught. Exiting..."' TERM HUP QUIT
trap 'trap_exit "Aborted by user! Exiting..."' INT
trap 'trap_exit "An unknown error has occurred. Exiting..."' ERR
source_pkgbuild() {
# Source this PKGBUILD, if it doesn't exist, exit
unset pkgbase pkgname depends makedepends
unset pkgrel pkgver epoch
if ! source ./PKGBUILD &>/dev/null ; then
error "No PKGBUILD in %s" "$PWD"
exit 1
fi
# Save resources
unset pkgdesc license groups backup install md5sums sha1sums \
sha256sums source options &>/dev/null
unset build package &>/dev/null
for _pkg in ${pkgname[@]}; do
unset package_${_pkg} &>/dev/null || true
done
# This is the name of the package
name="${pkgbase:-${pkgname[0]}}"
}
source_pkgbuild
# A temporary work dir and log file
temp_dir="${1:-$(mktemp -dt ${name}-testpkg-XXXX)}"
log="${temp_dir}/buildorder"
# Generate the full version with epoch
get_fullver() {
if [ $1 -eq 0 ]; then
# zero epoch case, don't include it in version
echo $2-$3
else
echo $1:$2-$3
fi
}
# Mark array for DFS-based topological sort. See
# https://en.wikipedia.org/wiki/Topological_sort for an explanation of
# the algorithm. Key: package name, value: 0 for unvisited package, 1
# during visit, 2 after visit.
declare -A marks
# Visit a PKGBUILD for graph building.
visit_pkgbuild() {
# The name of the previous package
prev="${1}"
local name
source_pkgbuild
# If it's already built we don't bother
is_built ${pkgname[0]} $(get_fullver ${epoch:-0} ${pkgver} ${pkgrel}) &&
return
# Detect cycle or already visited package
case "${marks[$name]:-0}" in
1) msg2 "cycle found with %s depending on %s" $prev $name
exit 1;;
2) return;;
esac
msg "%s (%s)" ${name} ${prev}
echo "${arch[@]}" | grep -qw "$CARCH" ||
warning "%s isn't ported to %s yet" ${name} ${CARCH}
# If the envvar I contains this package, ignore it and exit
echo "$I" | grep -qw "$name" &&
msg2 "%s ignored" ${name} &&
return
# Mark the package as being visited
marks[$name]=1
# Recurse into dependencies
for d in ${depends[@]} ${makedepends[@]}; do
# Cleanup dependency versions
d=$(echo $d | sed "s/[<>=].*//")
# Where's the pkgbuild?
w=$(toru-where $d)
# Skip if not available
test -z "$w" && continue
# Go to this dir
pushd $w &>/dev/null
visit_pkgbuild "$name"
popd &>/dev/null
done
# Mark the package as finished
marks[$name]=2
# Append it to the reversed list of packages to build.
echo "$name" >> "${log}"
}
# If we specified a work dir on the cli it means we want to skip
# dependency graph creation and jump to build whatever is there
if [ -z "${1}" ]; then
# Visit the root PKGBUILD to make the graph.
visit_pkgbuild ""
else
msg "Resuming build..."
fi
# enter work dir
pushd "${temp_dir}" &>/dev/null
nl ${log} | while read order pkg; do
# skip if already built
if test -f "${pkg}/built_ok"; then
warning "tried to build %s twice" "%{pkg}"
continue
fi
# where's this package?
w="$(toru-where "$pkg")"
test -z "$w" && continue
# copy to work dir if not already
# this means you can make modifications to the pkgbuild during the
# graph build or remove the dir after a build failure and let dagpkg
# copy a new version
test -d "$pkg" || cp -r "$w" "$pkg"
pushd "$pkg" &>/dev/null
term_title "$pkg($order)"
msg "Building %s" ${pkg}
# upgrade the system
# this would probably have to go on HOOKPREBUILD if you're working
# outside chroots
sudo -E pacman -Syu --noconfirm
# run the pre build command from libretools.conf
${HOOKPREBUILD}
# run the build command
${FULLBUILDCMD}
# Run local release hook with $1 = $repo
${HOOKLOCALRELEASE} "$(basename "$(dirname "$w")")"
# it's built!
touch built_ok
popd &>/dev/null
done
popd &>/dev/null
# cleanup
rm -rf ${log} "${temp_dir}"
term_title "done"
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