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#
# set -o noglob is assumed.
# WARNING: ex_pkg_dispatch(), its caller, and its callers must _NOT_ be executed
# as part of conditional evaluation, e.g. if, until, while, !, or && and ||, as
# doing so would inhibit set -o errexit during execution of this function and its
# subshell(!). Instead, call ex_pkg_dispatch() and subsequently evaluate ${?}.
#
exp_pkg_dispatch() {
local _pkg_name="${1}" _tgt_name="${2}" _restart_at="${3}" \
_dispatch_fn="${4}" _stderrout_path="${5}" _pipe_path="${6}" \
_njobs_vname="${7}" _pkg_name_uc;
_pkg_name_uc="$(ex_rtl_toupper "${_pkg_name}")";
if [ -n "$(ex_rtl_get_var_unsafe PKG_${_pkg_name_uc}_DISABLED)" ]; then
"${_dispatch_fn}" disabled_pkg "${_pkg_name}" "${_tgt_name}";
elif ex_pkg_state_test "${_pkg_name}" finish\
&& [ -z "${_restart_at}" ]; then
"${_dispatch_fn}" skipped_pkg "${_pkg_name}" "${_tgt_name}";
else
_stderrout_path="${BUILD_WORKDIR}/${_pkg_name}_stderrout.log";
"${_dispatch_fn}" start_pkg "${_pkg_name}" "${_tgt_name}";
(set -o errexit -o noglob; BUILD_IS_PARENT=0;
ex_pkg_env "${_pkg_name}" "${_tgt_name}" "${_restart_at}";
trap "if [ \${?} -eq 0 ]; then \
echo \"done ${_pkg_name} ${_tgt_name}\" >&3; \
else \
echo \"fail ${_pkg_name} ${_tgt_name}\" >&3; \
fi;" EXIT HUP INT TERM USR1 USR2;
ex_pkg_exec "${_pkg_name}" "${_tgt_name}" "${_restart_at}" \
"${_dispatch_fn}";) 1>"${_stderrout_path}" 2>&1 3>"${_pipe_path}" &
: $((${_njobs_vname}+=1));
fi;
};
ex_pkg_dispatch() {
local _tgt_name="${1}" _restart="${2}" _restart_at="${3}" \
_dispatch_fn="${4}" _tgt_name_uc \
_pkg_names _njob _njobs _njobs_max \
_pipe_path _stderrout_path _pipe_msg _script_rc;
ex_rtl_fileop mkdir "${BUILD_WORKDIR}";
_pipe_path="${BUILD_WORKDIR}/build.fifo";
_tgt_name_uc="$(ex_rtl_toupper "${_tgt_name}")";
"${_dispatch_fn}" start_target "" "${_tgt_name}";
_pkg_names="$(ex_rtl_get_var_unsafe ${_tgt_name_uc}_PACKAGES)";
if [ -n "${_restart}" ]\
&& [ "${_restart}" != ALL ]; then
_pkg_names="$(ex_rtl_lfilter "${_pkg_names}" "${_restart}")";
fi;
if [ "$(ex_rtl_get_var_unsafe ${_tgt_name_uc}_PARALLELISE)" = 1 ]\
&& [ "${ARG_PARALLEL:-0}" -gt 1 ]; then
_njobs_max="${DEFAULT_BUILD_CPUS}";
else
_njobs_max=1;
fi;
set -- ${_pkg_names};
while [ ${#} -gt 0 ]; do
_script_rc=0; _njobs=0;
ex_rtl_fileop mkfifo "${_pipe_path}";
for _njob in $(seq 1 $((${_njobs_max}-${_njobs}))); do
if [ ${#} -eq 0 ]; then
break;
else
exp_pkg_dispatch "${1}" "${_tgt_name}" \
"${_restart_at}" "${_dispatch_fn}" \
"${_stderrout_path}" "${_pipe_path}" \
_njobs; shift;
fi;
done;
if [ "${_njobs:-0}" -gt 0 ]; then
while read _pipe_msg; do
case "${_pipe_msg%% *}" in
done) "${_dispatch_fn}" finish_pkg ${_pipe_msg#done };
: $((_njobs-=1));
for _njob in $(seq 1 $((${_njobs_max}-${_njobs}))); do
if [ ${#} -eq 0 ]; then
break;
else
exp_pkg_dispatch "${1}" "${_tgt_name}" \
"${_restart_at}" "${_dispatch_fn}" \
"${_stderrout_path}" "${_pipe_path}" \
_njobs; shift;
fi;
done;
if [ "${_njobs:-0}" -eq 0 ]; then
break;
fi; ;;
fail) _script_rc=1;
"${_dispatch_fn}" fail_pkg ${_pipe_msg#fail };
[ $((_njobs-=1)) -eq 0 ] && break; ;;
step) "${_dispatch_fn}" step_pkg ${_pipe_msg#step }; ;;
esac; done <>"${_pipe_path}";
fi;
ex_rtl_fileop rm "${_pipe_path}";
if [ "${_script_rc:-1}" -eq 1 ]; then
return "${_script_rc}";
fi;
done;
"${_dispatch_fn}" finish_target "" "${_tgt_name}";
};
# vim:filetype=sh
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