3a8af6b55d
The prerequisites for a cleanup after a successful build were somewhat weird at this point; now the rules are: - if DEBUG level is more than 1 or CHECK is set, don't do it; - otherwise if at least one of the following conditions is true: + there's more than one target being built in a row; + the build was run by e.g. alterator-mkimage; + metaprofile directory is read only ...then do a distclean. If these are still weird or feel unsuitable for profile hacking, drop me a note (or a patch).
68 lines
2.0 KiB
Makefile
68 lines
2.0 KiB
Makefile
# this makefile can be used standalone
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# drop stock predefined rules
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.DEFAULT:
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SYMLINK = build
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# tmpfs-sparing extra rule: cleanup workdir after completing each stage
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# (as packed results are saved this only lowers RAM pressure)
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# NB: it's useful enough to be enabled by default in DEBUG abscence
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ifndef DEBUG
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CLEAN ?= 1
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endif
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ifdef CLEAN
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export GLOBAL_CLEAN_WORKDIR = clean-current
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ifdef DEBUG
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WARNING = (NB: DEBUG scope is limited when CLEAN is enabled)
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endif
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endif
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# ordinary clean: destroys workdirs but not the corresponding results
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# NB: our output MUST go into stderr to escape POSTPROC
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clean:
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@{ \
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find -name '*~' -delete >&/dev/null ||:; \
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if [ -L "$(SYMLINK)" -a -d "$(SYMLINK)"/ ]; then \
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echo "$(TIME) cleaning up $(WARNING)"; \
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$(MAKE) -C "$(SYMLINK)" $@ \
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GLOBAL_BUILDDIR="$(realpath $(SYMLINK))" $(LOG) ||:; \
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fi; \
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} >&2
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# there can be some sense in writing log here even if normally
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# $(BUILDDIR)/ gets purged: make might have failed,
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# and BUILDLOG can be specified by hand either
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distclean: clean
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@{ \
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if [ -L "$(SYMLINK)" -a -d "$(SYMLINK)"/ ]; then \
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build="$(realpath $(SYMLINK)/)"; \
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if [ "$$build" = / ]; then \
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echo "** ERROR: invalid \`"$(SYMLINK)"' symlink" >&2; \
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exit 128; \
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else \
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$(MAKE) -C "$(SYMLINK)" $@ \
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GLOBAL_BUILDDIR="$$build" $(LOG) ||: \
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rm -rf "$$build"; \
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fi; \
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fi; \
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rm -f "$(SYMLINK)"; \
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} >&2
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# builddir existing outside read-only metaprofile is less ephemeral
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# than BUILDDIR variable is -- usually it's unneeded afterwards
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# so just zap it unless DEBUG has been requested (moreso for multi
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# image builds, UI based ones, and readonly metaprofile; or CHECK)
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postclean: build-image
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@{ \
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if [ "0$(DEBUG)" -lt 2 -a -z "$(CHECK)" ] && \
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[ "$(NUM_TARGETS)" -gt 1 \
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-o -n "$(__frontend)" \
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-o ! -L "$(SYMLINK)" ]; then \
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echo "$(TIME) cleaning up after build"; \
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$(MAKE) -C "$(BUILDDIR)" distclean \
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GLOBAL_BUILDDIR="$(BUILDDIR)" $(LOG) ||:; \
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rm -rf "$(BUILDDIR)"; \
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fi; \
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} >&2
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