Makefile.am.coverage

# Build rules for measuring coverage

COVERAGE_INFO_FILE = $(top_builddir)/coverage.info
COVERAGE_REPORT_DIR = $(top_builddir)/coverage

.PHONY: coverage-requirement-check \
        coverage coverage-build coverage-check coverage-report \
        clean-coverage-report clean-coverage clean-coverage-hook-for-clean-local

coverage-requirement-check:
	@if test "x$(ENABLE_COVERAGE)" = "xno"; then \
		echo "Coverage feature is disabled. Please execute configure with --enable-gcov option."; \
		exit 1; \
	fi

coverage: coverage-requirement-check clean-coverage coverage-build coverage-check coverage-report

coverage-build: coverage-requirement-check
	@if test `find $(top_builddir) -name "*.gcno" | wc -l` -eq 0 -a \
		`find $(top_builddir) -name "*.bb" -o -name "*.bbg" | wc -l` -eq 0; then \
		echo "Starting to remove old non-instrumented object files..."; \
		$(MAKE) $(AM_MAKEFLAGS) clean; \
		echo "Successfully removed old non-instrumented object files."; \
	fi
	@echo "Starting to build libraries with coverage options..."
	$(MAKE) $(AM_MAKEFLAGS) \
		CFLAGS="$(CFLAGS) $(COVERAGE_CFLAGS) $(COVERAGE_OPTIMIZATION_FLAGS)" \
		CXXFLAGS="$(CXXFLAGS) $(COVERAGE_CXXFLAGS) $(COVERAGE_OPTIMIZATION_FLAGS)" \
		LDFLAGS="$(LDFLAGS) $(COVERAGE_LDFLAGS)"
	@echo "Successfully built libraries with coverage options."

coverage-check: coverage-requirement-check
	@echo "Starting to run tests with instrumented libraries..."
	$(MAKE) $(AM_MAKEFLAGS) check \
		CFLAGS="$(CFLAGS) $(COVERAGE_CFLAGS) $(COVERAGE_OPTIMIZATION_FLAGS)" \
		CXXFLAGS="$(CXXFLAGS) $(COVERAGE_CXXFLAGS) $(COVERAGE_OPTIMIZATION_FLAGS)" \
		LDFLAGS="$(LDFLAGS) $(COVERAGE_LDFLAGS)"
	@echo "Successfully run tests with instrumented libraries."

# TODO(Eiichiro Iwata): Remove GNU make extension(abspath function)
# Automake treat GNU make extension as warning
# when using -Wall or -Wportability in AM_INIT_AUTOMAKE.
coverage-report: coverage-requirement-check
	@echo "Starting to create coverage reports..."
	$(LCOV) --capture \
		--directory "$(top_builddir)/src" \
		--base-directory "$(abspath $(top_builddir))/src" \
		--output-file $(COVERAGE_INFO_FILE) \
		--compat-libtool --checksum
	$(LCOV) --extract $(COVERAGE_INFO_FILE) "$(abspath $(top_srcdir))/src/*" \
		--output-file $(COVERAGE_INFO_FILE)
	$(GENHTML) --prefix "$(abspath $(top_srcdir))" \
		--output-directory $(COVERAGE_REPORT_DIR) \
                --title autotools-unittest \
		--legend --show-details \
		$(GENHTML_OPTIONS) \
		$(COVERAGE_INFO_FILE)
	@echo "Successfully created coverage reports into $(COVERAGE_REPORT_DIR) directory."

clean-coverage-report:
	-rm -rf $(COVERAGE_INFO_FILE)
	-rm -rf $(COVERAGE_REPORT_DIR)

clean-coverage: clean-coverage-report
	-$(LCOV) --zerocounters --directory $(top_builddir)

clean-coverage-hook-for-clean-local:
	-find $(top_builddir) -name "*.gcno" -print | xargs -r rm

mostlyclean-local: clean-coverage

clean-local: clean-coverage-hook-for-clean-local