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build: opt-in to delegate building from Makefile to ninja #27504

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May 3, 2019
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build: opt-in to delegate building from Makefile to ninja #27504

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25 changes: 25 additions & 0 deletions Makefile
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Original file line number Diff line number Diff line change
Expand Up @@ -16,6 +16,7 @@ GTEST_FILTER ?= "*"
GNUMAKEFLAGS += --no-print-directory
GCOV ?= gcov
PWD = $(CURDIR)
BUILD_WITH ?= make

ifdef JOBS
PARALLEL_ARGS = -j $(JOBS)
Expand Down Expand Up @@ -95,13 +96,37 @@ help: ## Print help for targets with comments.
# Without the check there is a race condition between the link being deleted
# and recreated which can break the addons build when running test-ci
# See comments on the build-addons target for some more info
ifeq ($(BUILD_WITH), make)
$(NODE_EXE): config.gypi out/Makefile
$(MAKE) -C out BUILDTYPE=Release V=$(V)
if [ ! -r $@ -o ! -L $@ ]; then ln -fs out/Release/$(NODE_EXE) $@; fi

$(NODE_G_EXE): config.gypi out/Makefile
$(MAKE) -C out BUILDTYPE=Debug V=$(V)
if [ ! -r $@ -o ! -L $@ ]; then ln -fs out/Debug/$(NODE_EXE) $@; fi
else
ifeq ($(BUILD_WITH), ninja)
ifeq ($(V),1)
NINJA_ARGS := $(NINJA_ARGS) -v
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Perhaps the -jN flag, if it's present in MAKEFLAGS, should be copied into NINJA_ARGS? So that make -j2 ends up calling ninja -j2.

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@refack refack May 2, 2019 •
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Perhaps the -jN flag, if it's present in MAKEFLAGS, should be copied into NINJA_ARGS? So that make -j2 ends up calling ninja -j2.

Added support via a JOBS env var.

FTR: By default ninja runs in multiproc mode so adding -j is used to change the default or limit the number of parallel processes.
Also make or even gmake do not readily expose the value that was passed to them.

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Added $(filter -j%,$(MAKEFLAGS))

endif
ifdef JOBS
NINJA_ARGS := $(NINJA_ARGS) -j$(JOBS)
else
NINJA_ARGS := $(NINJA_ARGS) $(filter -j%,$(MAKEFLAGS))
endif
$(NODE_EXE): config.gypi out/Release/build.ninja
ninja -C out/Release $(NINJA_ARGS)
if [ ! -r $@ -o ! -L $@ ]; then ln -fs out/Release/$(NODE_EXE) $@; fi

$(NODE_G_EXE): config.gypi out/Debug/build.ninja
ninja -C out/Debug $(NINJA_ARGS)
if [ ! -r $@ -o ! -L $@ ]; then ln -fs out/Debug/$(NODE_EXE) $@; fi
else
$(NODE_EXE) $(NODE_G_EXE):
echo This Makefile currently only supports building with 'make' or 'ninja'
endif
endif


ifeq ($(BUILDTYPE),Debug)
CONFIG_FLAGS += --debug
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20 changes: 16 additions & 4 deletions configure.py
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Expand Up @@ -1627,23 +1627,35 @@ def make_bin_override():
' '.join([pipes.quote(arg) for arg in original_argv]) + '\n')
os.chmod('config.status', 0o775)


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Stray whitespace change?

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No. I meant to better delineate the lines that generate config.mk.
Optimally I'd wrap this code into a function, but that will just conflict with #26725

config = {
'BUILDTYPE': 'Debug' if options.debug else 'Release',
'PYTHON': sys.executable,
'NODE_TARGET_TYPE': variables['node_target_type'],
}

# Not needed for trivial case. Useless when it's a win32 path.
if sys.executable != 'python' and ':\\' not in sys.executable:
config['PYTHON'] = sys.executable

if options.prefix:
config['PREFIX'] = options.prefix

config = '\n'.join(['='.join(item) for item in config.items()]) + '\n'
if options.use_ninja:
config['BUILD_WITH'] = 'ninja'

config_lines = ['='.join((k,v)) for k,v in config.items()]
# Add a blank string to get a blank line at the end.
config_lines += ['']
config_str = '\n'.join(config_lines)

# On Windows there's no reason to search for a different python binary.
bin_override = None if sys.platform == 'win32' else make_bin_override()
if bin_override:
config = 'export PATH:=' + bin_override + ':$(PATH)\n' + config
config_str = 'export PATH:=' + bin_override + ':$(PATH)\n' + config_str

write('config.mk', do_not_edit + config_str)


write('config.mk', do_not_edit + config)

gyp_args = ['--no-parallel', '-Dconfiguring_node=1']

Expand Down