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#!/bin/sh
# receive one package to be built from the build-list whose dependencies
# are already satisfied or which breaks a dependency cycle
# accepts a comma separated list of prefered packages as the first argument
# exit code shows state of success:
# 0: ok, I gave you an assignment
# 1: come back (shortly) later - I was running already
# 2: come back later - there are still packages to be built,
# but currently none has all its dependencies ready
# 3: come back after the next run of get-package-updates - currently
# there are no pending packages
# shellcheck disable=SC2119,SC2120
# shellcheck source=../lib/load-configuration
. "${0%/*}/../lib/load-configuration"
# TODO: honor manual build order of tool-chain:
# toolchain build order: linux-api-headers->glibc->binutils->gcc->binutils->glibc
# hand_out_assignment $build_assignments.id
hand_out_assignment() {
# shellcheck disable=SC2016
{
printf 'SELECT '
printf '`package_sources`.`%s`,' \
'pkgbase' 'git_revision' 'mod_git_revision'
printf '`upstream_repositories`.`name`,`binary_packages`.`sub_pkgrel`'
printf ' FROM `upstream_repositories`'
mysql_join_upstream_repositories_package_sources
mysql_join_package_sources_build_assignments
mysql_join_build_assignments_binary_packages
mysql_join_binary_packages_binary_packages_in_repositories
printf ' WHERE `binary_packages_in_repositories`.`repository`=%s' \
"${repository_ids__any_build_list}"
printf ' AND `build_assignments`.`id`=%s' \
"$1"
printf ' LIMIT 1;\n'
printf 'SELECT '
mysql_package_name_query
printf ' FROM `binary_packages`'
mysql_join_binary_packages_architectures
mysql_join_binary_packages_binary_packages_in_repositories
printf ' WHERE `binary_packages`.`build_assignment`=%s' \
"$1"
printf ' AND `binary_packages_in_repositories`.`repository`=%s' \
"${repository_ids__any_build_list}"
printf ';\n'
printf 'UPDATE `build_slaves`'
printf ' SET `build_slaves`.`currently_building`=%s,' \
"$1"
printf ' `build_slaves`.`is_sane`=1'
# shellcheck disable=SC2154
printf ' WHERE `build_slaves`.`id`=from_base64("%s");\n' \
"$(printf '%s' "${slave_id}" | base64 -w0)"
printf 'UPDATE `build_assignments`'
printf ' SET `build_assignments`.`priority`=0'
printf ' WHERE `build_assignments`.`id`=%s;\n' \
"$1"
} | \
mysql_run_query | \
tr '\t' ' '
exit 0
}
if [ -s "${work_dir}/build-master-sanity" ]; then
>&2 echo 'Build master is not sane.'
exit 1
fi
# Create a lock file and a trap.
exec 9> "${build_list_lock_file}"
if ! verbose_flock -n 9; then
>&2 echo 'come back (shortly) later - I cannot lock build list.'
exit 1
fi
exec 8> "${sanity_check_lock_file}"
if ! verbose_flock -s -n 8; then
>&2 echo 'come back (shortly) later - sanity-check running.'
exit 1
fi
clean_up() {
rm -f "${build_list_lock_file}"
rm -rf --one-file-system "${tmp_dir}"
}
tmp_dir=$(mktemp -d 'tmp.get-assignment.XXXXXXXXXX' --tmpdir)
trap clean_up EXIT
arch=$(
printf '%s' "$1" | \
base64 -w0
)
shift
# if we're building something already, hand it out (again)
currently_building=$(
# shellcheck disable=SC2016
{
printf 'SELECT `build_assignments`.`id`'
printf ' FROM `build_assignments`'
mysql_join_build_assignments_build_slaves
mysql_join_build_assignments_binary_packages
mysql_join_binary_packages_binary_packages_in_repositories
printf ' JOIN `architecture_compatibilities`'
printf ' ON `architecture_compatibilities`.`built_for`=`build_assignments`.`architecture`'
printf ' JOIN `architectures`'
printf ' ON `architecture_compatibilities`.`runs_on`=`architectures`.`id`'
printf ' WHERE `build_slaves`.`id`=from_base64("%s")' \
"$(printf '%s' "${slave_id}" | base64 -w0)"
printf ' AND `binary_packages_in_repositories`.`repository`=%s' \
"${repository_ids__any_build_list}"
printf ' AND `architectures`.`name` = from_base64("%s")' \
"${arch}"
printf ' LIMIT 1;\n'
} | \
mysql_run_query
)
if [ -n "${currently_building}" ]; then
hand_out_assignment "${currently_building}"
fi
# a package with [all dependencies met or which is part of a loop]
# and which is currently not being built, ordered by:
# 1: we requested it
# 2: architecture matches
# 3: its priority
# 4: is not yet built
# 5: was built the longest time ago
next_building=$(
# shellcheck disable=SC2016
{
printf 'SELECT `q`.`ba_id` FROM'
printf '('
printf 'SELECT '
printf '`package_sources`.`pkgbase`=from_base64("%s") AS `requested`,' \
"$(
printf '%s' "$1" | \
base64 -w0
)"
printf '`build_assignments`.`priority`,'
printf 'COALESCE('
printf 'MAX(`failed_builds`.`date`),0'
printf ') AS `last_trial`,'
mysql_query_is_part_of_loop '`build_assignments`.`id`'
printf ' AS `part_of_loop`,'
printf '`build_assignments`.`id` AS `ba_id`'
printf ' FROM `build_assignments`'
mysql_join_build_assignments_package_sources
mysql_join_build_assignments_binary_packages
mysql_join_binary_packages_binary_packages_in_repositories
printf ' JOIN `architecture_compatibilities`'
printf ' ON `architecture_compatibilities`.`built_for`=`build_assignments`.`architecture`'
printf ' JOIN `architectures`'
printf ' ON `architecture_compatibilities`.`runs_on`=`architectures`.`id`'
printf ' LEFT'
mysql_join_build_assignments_failed_builds
printf ' WHERE NOT EXISTS ('
printf ' SELECT 1'
printf ' FROM `build_slaves`'
printf ' WHERE `build_slaves`.`currently_building`=`build_assignments`.`id`'
printf ') AND ('
printf '`build_assignments`.`is_blocked` IS NULL'
printf ' OR'
printf ' `package_sources`.`pkgbase`=from_base64("%s")' \
"$(
printf '%s' "$1" | \
base64 -w0
)"
printf ') AND ('
mysql_query_is_part_of_loop '`build_assignments`.`id`'
printf ' OR NOT '
mysql_query_has_pending_dependencies '`build_assignments`.`id`'
printf ')'
printf ' AND `binary_packages_in_repositories`.`repository`=%s' \
"${repository_ids__any_build_list}"
printf ' AND `architectures`.`name` = from_base64("%s")' \
"${arch}"
printf ' GROUP BY `build_assignments`.`id`'
printf ' ORDER BY'
printf ' `requested` DESC,'
printf ' `priority` DESC,'
printf ' `last_trial`,'
printf ' `architectures`.`id`=`build_assignments`.`architecture` DESC,'
printf ' `part_of_loop`,'
printf ' `build_assignments`.`id`'
printf ' LIMIT 1'
printf ') AS `q`;\n'
} | \
mysql_run_query
)
if [ -n "${next_building}" ]; then
hand_out_assignment "${next_building}"
fi
# Check if there are any pending packages at all
count_pending=$(
# shellcheck disable=SC2016
{
printf 'SELECT COUNT(1)'
printf ' FROM `build_assignments`'
mysql_join_build_assignments_binary_packages
mysql_join_binary_packages_binary_packages_in_repositories
mysql_join_binary_packages_in_repositories_repositories
printf ' WHERE `repositories`.`name`="build-list"'
printf ' AND `build_assignments`.`is_blocked` IS NULL'
printf ';\n'
} | \
mysql_run_query
)
if [ "${count_pending}" -eq 0 ]; then
>&2 echo 'come back after the next run of get-package-updates - currently there are no pending packages'
exit 3
else
>&2 echo 'come back later - there are still packages to be built, but currently none has all its dependencies ready'
exit 2
fi
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