ASAN_OPTIONS?=verify_asan_link_order=0:detect_leaks=0:abort_on_error=1:unmap_shadow_on_exit=1:disable_coredump=0
export ASAN_OPTIONS

.PHONY: verify-env
verify-env:
ifndef WS_ROOT
	$(error WS_ROOT is not set)
endif
ifndef BR
	$(error BR is not set)
endif
ifndef TEST_DIR
	$(error TEST_DIR is not set)
endif

export TEST_BR = $(BR)/build-test
export TEST_DOC_BR = $(TEST_BR)/doc
export BUILD_TEST_SRC = $(TEST_BR)/src
FAILED_DIR=/tmp/vpp-failed-unittests/
PLUGIN_TEST_DIRS=$(shell find $(PLUGIN_SRC_DIR) -type d -name test -exec echo -n " -d {}" \;)
CORE_TEST_DIRS=$(shell find $(WS_ROOT)/src -not \( -path $(INTERN_PLUGIN_SRC_DIR) -prune \) -type d -name test -exec echo -n " -d {}" \;)
VPP_TEST_DIRS=$(shell ls -d $(TEST_DIR)$(PLUGIN_TEST_DIRS)$(CORE_TEST_DIRS) $(EXTERN_TESTS))
VPP_TEST_SRC=$(shell for dir in $(VPP_TEST_DIRS) ; do ls $$dir/*.py; done)

.PHONY: verify-no-running-vpp

ifdef VPP_ZOMBIE_NOCHECK
VPP_PIDS=
else
VPP_PIDS=$(shell pgrep -d, -x vpp_main)
endif

ifeq ($(DEBUG),gdb)
FORCE_FOREGROUND=1
else ifeq ($(DEBUG),gdbserver)
FORCE_FOREGROUND=1
else ifeq ($(DEBUG),gdb-all)
FORCE_FOREGROUND=1
else ifeq ($(DEBUG),gdbserver-all)
FORCE_FOREGROUND=1
else ifeq ($(DEBUG),core)
FORCE_FOREGROUND=1
else ifeq ($(STEP),yes)
FORCE_FOREGROUND=1
else ifeq ($(STEP),y)
FORCE_FOREGROUND=1
else ifeq ($(STEP),1)
FORCE_FOREGROUND=1
else
FORCE_FOREGROUND=0
endif

ifdef PROFILE_OUTPUT
PROFILE_OUTPUT_OPTS=-o $(PROFILE_OUTPUT)
endif

ifndef PROFILE_SORT_BY
PROFILE_SORT_BY=cumtime
endif

ifeq ($(PROFILE),1)
PYTHON_PROFILE_OPTS=-m cProfile $(PROFILE_OUTPUT_OPTS) -s $(PROFILE_SORT_BY)
FORCE_FOREGROUND=1
endif

verify-no-running-vpp:
	@if [ "$(VPP_PIDS)" != "" ]; then \
		echo; \
		echo "*** Existing vpp processes detected (PID(s): $(VPP_PIDS)). Running tests under these conditions is not supported. ***"; \
		echo; \
		ps -fp $(VPP_PIDS);\
		echo; \
		false; \
	fi

UNITTEST_EXTRA_OPTS=
UNITTEST_FAILFAST_OPTS=

ifeq ($(FAILFAST),1)
UNITTEST_EXTRA_OPTS=-f
endif

ifneq ($(EXTERN_TESTS),)
UNITTEST_EXTRA_OPTS=$(UNITTEST_FAILFAST_OPTS) -d $(EXTERN_TESTS)
endif

VENV_PATH=$(TEST_BR)/venv

ifeq ($(TEST_DEBUG),1)
VENV_RUN_DIR:=$(VENV_PATH)/run-debug
else
VENV_RUN_DIR:=$(VENV_PATH)/run
endif

ifeq ($(PYTHON),)
PYTHON_INTERP=python3
else
PYTHON_INTERP=$(PYTHON)
endif

PYTHON_VERSION=$(shell $(PYTHON_INTERP) -c 'import sys; print(sys.version_info.major)')
PIP_VERSION=20.1.1
# Keep in sync with requirements.txt
PIP_TOOLS_VERSION=5.1.2
PYTHON_DEPENDS=requirements-$(PYTHON_VERSION).txt
SCAPY_SOURCE=$(shell find $(VENV_PATH)/lib/python* -name site-packages)
BUILD_COV_DIR=$(TEST_BR)/coverage

PIP_TOOLS_INSTALL_DONE=$(VENV_RUN_DIR)/pip-tools-install-$(PYTHON_VERSION)-$(PIP_TOOLS_VERSION).done
PIP_INSTALL_DONE=$(VENV_RUN_DIR)/pip-install-$(PYTHON_VERSION)-$(PIP_VERSION).done
PIP_PATCH_DONE=$(VENV_RUN_DIR)/pip-patch-$(PYTHON_VERSION).done
PAPI_INSTALL_DONE=$(VENV_RUN_DIR)/papi-install-$(PYTHON_VERSION).done
PAPI_PYTHON_SRC_DIR=$(WS_ROOT)/src/vpp-api/python
PAPI_WIPE_DIST=$(WS_ROOT)/src/vpp-api/vapi/__pycache__ \
	$(PAPI_PYTHON_SRC_DIR)/build \
	$(PAPI_PYTHON_SRC_DIR)/vpp_papi.egg-info \
	$(PAPI_PYTHON_SRC_DIR)/vpp_papi/__pycache__

$(PIP_TOOLS_INSTALL_DONE):
	@rm -rf $(VENV_PATH)
	@mkdir -p $(VENV_RUN_DIR)
	@virtualenv $(VENV_PATH) -p $(PYTHON_INTERP)
	# pip version pinning
	@bash -c "source $(VENV_PATH)/bin/activate && \
		  $(PYTHON_INTERP) -m pip install pip===$(PIP_VERSION)"
	@bash -c "source $(VENV_PATH)/bin/activate && \
		  $(PYTHON_INTERP) -m pip install pip-tools===$(PIP_TOOLS_VERSION)"
	@touch $@

$(PYTHON_DEPENDS): requirements.txt
	@bash -c "source $(VENV_PATH)/bin/activate && \
		  CUSTOM_COMPILE_COMMAND='make test-refresh-deps (or update requirements.txt)' \
		  $(PYTHON_INTERP) -m piptools compile -q --generate-hashes requirements.txt --output-file $@"

$(PIP_INSTALL_DONE): $(PIP_TOOLS_INSTALL_DONE) $(PYTHON_DEPENDS)
	@bash -c "source $(VENV_PATH)/bin/activate && \
		  $(PYTHON_INTERP) -m piptools sync $(PYTHON_DEPENDS)"
	@touch $@

$(PIP_PATCH_DONE): $(PIP_INSTALL_DONE)
	@echo --- patching ---
	@sleep 1 # Ensure python recompiles patched *.py files -> *.pyc
	for f in $(CURDIR)/patches/scapy-2.4.3/*.patch ; do \
		echo Applying patch: $$(basename $$f) ; \
		patch --forward -p1 -d $(SCAPY_SOURCE) < $$f ; \
		retCode=$$?; \
		[ $$retCode -gt 1 ] && exit $$retCode; \
	done; \
	touch $@

$(PAPI_INSTALL_DONE): $(PIP_PATCH_DONE)
	@bash -c "source $(VENV_PATH)/bin/activate && $(PYTHON_INTERP) -m pip install -e $(PAPI_PYTHON_SRC_DIR)"
	@touch $@

.PHONY: refresh-deps
refresh-deps: clean-deps $(PYTHON_DEPENDS)

.PHONY: clean-deps
clean-deps:
	@rm -f $(PYTHON_DEPENDS)

INTERN_PLUGIN_SRC_DIR=$(WS_ROOT)/src/plugins
ifneq ($(EXTERN_PLUGIN_SRC_DIR),)
PLUGIN_SRC_DIR=$(EXTERN_PLUGIN_SRC_DIR)
else
PLUGIN_SRC_DIR=$(INTERN_PLUGIN_SRC_DIR)
endif

define retest-func
@env FORCE_FOREGROUND=$(FORCE_FOREGROUND) FAILED_DIR=$(FAILED_DIR) VENV_PATH=$(VENV_PATH) scripts/setsid_wrapper.sh $(FORCE_FOREGROUND) $(VENV_PATH)/bin/activate $(PYTHON_INTERP) $(PYTHON_PROFILE_OPTS) $(BUILD_TEST_SRC)/run_tests.py -d $(BUILD_TEST_SRC) $(UNITTEST_EXTRA_OPTS) || env FAILED_DIR=$(FAILED_DIR) COMPRESS_FAILED_TEST_LOGS=$(COMPRESS_FAILED_TEST_LOGS) scripts/compress_failed.sh
endef

.PHONY: sanity

ifeq ($(SANITY),no)
SANITY_IMPORT_VPP_PAPI_CMD=true
SANITY_RUN_VPP_CMD=true
else
SANITY_IMPORT_VPP_PAPI_CMD=source $(VENV_PATH)/bin/activate && $(PYTHON_INTERP) $(BUILD_TEST_SRC)/sanity_import_vpp_papi.py
SANITY_RUN_VPP_CMD=source $(VENV_PATH)/bin/activate && PYTHONPATH=$(BUILD_TEST_SRC) $(PYTHON_INTERP) $(BUILD_TEST_SRC)/sanity_run_vpp.py
endif

ifndef TEST_JOBS
PARALLEL_ILLEGAL=0
else ifeq ($(FORCE_FOREGROUND),0)
PARALLEL_ILLEGAL=0
else ifeq ($(TEST_JOBS),auto)
PARALLEL_ILLEGAL=0
else ifeq ($(TEST_JOBS),1)
PARALLEL_ILLEGAL=0
else
PARALLEL_ILLEGAL=1
endif

sanity: test-dep verify-no-running-vpp
	@sys_req/dev_shm_size.sh
	@bash -c "test $(PARALLEL_ILLEGAL) -eq 0 ||\
	    (echo \"*******************************************************************\" &&\
		 echo \"* Sanity check failed, TEST_JOBS is not 1 or 'auto' and DEBUG, STEP or PROFILE is set\" &&\
	         echo \"*******************************************************************\" &&\
		 false)"
	@bash -c "$(SANITY_IMPORT_VPP_PAPI_CMD) ||\
		(echo \"*******************************************************************\" &&\
		 echo \"* Sanity check failed, cannot import vpp_papi\" &&\
		 echo \"* to debug: \" &&\
		 echo \"* 1. enter test shell:   make test-shell\" &&\
		 echo \"* 2. execute debugger:   gdb python -ex 'run sanity_import_vpp_papi.py'\" &&\
	         echo \"*******************************************************************\" &&\
		 false)"
	@bash -c "$(SANITY_RUN_VPP_CMD) ||\
		(echo \"*******************************************************************\" &&\
		 echo \"* Sanity check failed, cannot run vpp\" &&\
	         echo \"*******************************************************************\" &&\
		 false)"

.PHONY: ext-test-apps
ext-test-apps:
	make -C ext test-apps

$(BUILD_TEST_SRC): verify-env
	@mkdir -p $@
	@for file in $(VPP_TEST_SRC); do if [ ! -e $(BUILD_TEST_SRC)/$$(basename $$file) ] ; then ln -s $$file $(BUILD_TEST_SRC) ; fi ; done

$(FAILED_DIR): reset
	@mkdir -p $@

.PHONY: test-dep
test-dep: $(BUILD_TEST_SRC) $(PAPI_INSTALL_DONE) $(FAILED_DIR)

.PHONY: test
test: test-dep ext-test-apps sanity
	$(call retest-func)

.PHONY: retest
retest: verify-env sanity $(FAILED_DIR)
	$(call retest-func)

.PHONY: shell
shell: test-dep
	@echo "source $(VENV_PATH)/bin/activate;\
		cd $(BUILD_TEST_SRC);\
		export PYTHONPATH=$(BUILD_TEST_SRC);\
		export RND_SEED=$(RND_SEED);\
		echo '***';\
		echo PYTHONPATH=$(BUILD_TEST_SRC);\
		echo RND_SEED=$(RND_SEED);\
		echo VPP_BUILD_DIR=$(VPP_BUILD_DIR);\
		echo VPP_BIN=$(VPP_BIN);\
		echo VPP_PLUGIN_PATH=$(VPP_PLUGIN_PATH);\
		echo VPP_TEST_PLUGIN_PATH=$(VPP_TEST_PLUGIN_PATH);\
		echo VPP_INSTALL_PATH=$(VPP_INSTALL_PATH);\
		echo EXTERN_TESTS=$(EXTERN_TESTS);\
		echo EXTERN_PLUGINS=$(EXTERN_PLUGINS);\
                echo EXTERN_COV_DIR=$(EXTERN_COV_DIR);\
		echo LD_LIBRARY_PATH=$(LD_LIBRARY_PATH);\
		echo '***';\
		exec </dev/tty" |<style>
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