cd3e47c562
This one regulates the build wrapper: if the value is non-empty then nice(1) and ionice(1) will be attempted so that the build behaves better in regard to other tasks running on the system. A few doc/variables.txt updates along the way.
49 lines
1.4 KiB
Makefile
49 lines
1.4 KiB
Makefile
# step 4 is kicked off here but actually done by image.in/Makefile
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ifndef MKIMAGE_PROFILES
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$(error this makefile is designed to be included in toplevel one)
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endif
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export ARCH ?= $(shell arch | sed 's/i686/i586/')
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# try not to bog down the system, both CPU and I/O wise
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ifdef NICE
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START := nice $(shell ionice -c3 echo "ionice -c3" 2>/dev/null)
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endif
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# it's also nice to know how long and much it takes
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START += time -f "%E %PCPU %Mk"
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# /usr/bin/{i586,x86_64} are setarch(8) symlinks
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START += $(ARCH)
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# to be passed into distcfg.mk
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IMAGEDIR ?= $(shell [ -d "$$HOME/out" -a -w "$$HOME/out" ] \
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&& echo "$$HOME/out" \
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|| echo "$(BUILDDIR)/out" )
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build: profile/populate
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@echo -n "$(TIME) starting image build"
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@if [ -n "$(DEBUG)" ]; then \
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echo ": tail -f $(BUILDLOG)" $(SHORTEN); \
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else \
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if [ -n "$(ALL)" ]; then \
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echo " [$(ALL)]"; \
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else \
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echo " (coffee time)"; \
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fi; \
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fi
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@if $(START) $(MAKE) -C $(BUILDDIR)/ $(LOG); then \
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echo "$(TIME) build done (`tail -1 $(BUILDLOG) | cut -f1 -d. \
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|| echo "no log"`)"; \
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else \
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echo "$(TIME) build failed, see log: $(BUILDLOG)" $(SHORTEN); \
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if [ -z "$(DEBUG)" ]; then \
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echo "$(TIME) (you might want to re-run with DEBUG=1)"; \
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fi; \
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tail -100 "$(BUILDLOG)" | egrep "^E:|[Ee]rror|[Ww]arning"; \
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df -P $(BUILDDIR) | awk 'END { if ($$4 < 1024) \
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{ print "NB: low space on "$$6" ("$$5" used)"}}'; \
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fi
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@if [ -n "$(BELL)" ]; then echo -ne '\a' >&2; fi
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