21 lines
736 B
Makefile
21 lines
736 B
Makefile
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# Testability guard
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#
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# Tree testability is a single top-level property tracked by
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# $(TOPDIR)/dirs-all.done: created by a full `make all` from the topdir,
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# removed by `make clean`. A per-dir `make test` only makes sense when the tree
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# is importable, i.e. testable. So `test` requires testability, and a `make
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# clean` that drops artifacts crucial for testing (a Python module's
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# __init__.py, ...) invalidates it.
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.PHONY: testability invalidate-testability
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TEST_GUARD = $(TOPDIR)/dirs-all.done
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all:
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testability:
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@test -f "$(TEST_GUARD)" || \
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{ echo 'Error: Tree not testable -- run "make all" (or "make test") from project root to fix that!' >&2; exit 1; }
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invalidate-testability:
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$(RM) -f "$(TEST_GUARD)"
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