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# SPDX-License-Identifier: BSD-2-Clause
#
# $Id: jobs.mk,v 1.17 2024/02/17 17:26:57 sjg Exp $
#
# @(#) Copyright (c) 2012-2023, Simon J. Gerraty
#
# This file is provided in the hope that it will
# be of use. There is absolutely NO WARRANTY.
# Permission to copy, redistribute or otherwise
# use this file is hereby granted provided that
# the above copyright notice and this notice are
# left intact.
#
# Please send copies of changes and bug-fixes to:
# sjg@crufty.net
#
# This makefile is used by top-level makefile.
# With the following:
#
# .if make(*-jobs)
# .include <jobs.mk>
# .endif
#
#
# Then if you do:
#
# mk target-jobs
#
# We will run:
#
# ${MAKE} -j${JOB_MAX} target > ${JOB_LOGDIR}/target.log 2>&1
#
# JOB_MAX should be something like 1.2 - 1.5 times the number of
# available CPUs.
# If bmake sets .MAKE.JOBS.C=yes we can use -jC and
# JOB_MAX defaults to JOB_MAX_C (default 1.33C).
# Otherwise we use 8.
#
now_utc ?= ${%s:L:localtime}
.if !defined(start_utc)
start_utc := ${now_utc}
.endif
.if make(*-jobs)
.info ${.newline}${TIME_STAMP} Start ${.TARGETS}
JOB_LOGDIR ?= ${SRCTOP:H}
JOB_LOG = ${JOB_LOGDIR}/${.TARGET:S,-jobs,,:S,/,_,g}.log
JOB_LOG_GENS ?= 4
# we like to rotate logs
.if empty(NEWLOG_SH)
.for d in ${.SYSPATH:U${.PARSEDIR}:@x@$x $x/scripts@}
.if exists($d/newlog.sh)
NEWLOG_SH := $d/newlog.sh
.if ${MAKE_VERSION} > 20220924
.break
.endif
.endif
.endfor
.if empty(NEWLOG_SH)
.ifdef M_whence
NEWLOG_SH := ${newlog.sh:L:${M_whence}}
.else
NEWLOG_SH := ${(type newlog.sh) 2> /dev/null:L:sh:M/*}
.endif
.endif
.endif
.if !empty(NEWLOG_SH) && exists(${NEWLOG_SH})
NEWLOG := sh ${NEWLOG_SH}
JOB_NEWLOG_ARGS ?= -S -n ${JOB_LOG_GENS}
.else
NEWLOG = :
.endif
.if ${.MAKE.JOBS:U0} > 0
JOB_MAX = ${.MAKE.JOBS}
.else
# This should be derrived from number of cpu's
.if ${.MAKE.JOBS.C:Uno} == "yes"
# 1.2 - 1.5 times nCPU works well on most machines that support -jC
# if the factor is floating point, the C suffix isn't needed
JOB_MAX_C ?= 1.33
JOB_MAX ?= ${JOB_MAX_C}
.endif
JOB_MAX ?= 8
JOB_ARGS += -j${JOB_MAX}
.endif
# we need to reset .MAKE.LEVEL to 0 so that
# build orchestration works as expected (DIRDEPS_BUILD)
${.TARGETS:M*-jobs}:
@${NEWLOG} ${JOB_NEWLOG_ARGS} ${JOB_LOG}
@echo "${TIME_STAMP} Start ${.TARGET:S,-jobs,,} ${JOB_ARGS} ${JOB_LOG_START} log=${JOB_LOG}" | tee ${JOB_LOG}
@cd ${.CURDIR} && env MAKELEVEL=0 \
${.MAKE} ${JOB_ARGS} _TARGETS=${.TARGET:S,-jobs,,} ${.TARGET:S,-jobs,,} >> ${JOB_LOG} 2>&1
.endif
.END: _build_finish
.ERROR: _build_failed
_build_finish: .NOMETA
@echo "${TIME_STAMP} Finished ${.TARGETS} seconds=`expr ${now_utc} - ${start_utc}`"
_build_failed: .NOMETA
@echo "${TIME_STAMP} Failed ${.TARGETS} seconds=`expr ${now_utc} - ${start_utc}`"
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