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fuzz: Refactor Fuzzers based on Go native fuzzing #432

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merged 1 commit into from
Sep 9, 2022
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fuzz: Refactor Fuzzers based on Go native fuzzing #432

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13 changes: 12 additions & 1 deletion Makefile
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Original file line number Diff line number Diff line change
Expand Up @@ -37,6 +37,10 @@ BUILD_DIR := $(REPOSITORY_ROOT)/build
# Other dependency versions
ENVTEST_BIN_VERSION ?= 1.19.2

# FUZZ_TIME defines the max amount of time, in Go Duration,
# each fuzzer should run for.
FUZZ_TIME ?= 1m

# Caches libgit2 versions per tag, "forcing" rebuild only when needed.
LIBGIT2_PATH := $(BUILD_DIR)/libgit2/$(LIBGIT2_TAG)
LIBGIT2_LIB_PATH := $(LIBGIT2_PATH)/lib
Expand Down Expand Up @@ -219,7 +223,7 @@ ENVTEST = $(GOBIN)/setup-envtest
setup-envtest: ## Download envtest-setup locally if necessary.
$(call go-install-tool,$(ENVTEST),sigs.k8s.io/controller-runtime/tools/setup-envtest@latest)

# Build fuzzers
# Build fuzzers used by oss-fuzz.
fuzz-build: $(LIBGIT2)
rm -rf $(shell pwd)/build/fuzz/
mkdir -p $(shell pwd)/build/fuzz/out/
Expand All @@ -231,13 +235,20 @@ fuzz-build: $(LIBGIT2)
-v "$(shell pwd)/build/fuzz/out":/out \
local-fuzzing:latest

# Run each fuzzer once to ensure they will work when executed by oss-fuzz.
fuzz-smoketest: fuzz-build
docker run --rm \
-v "$(shell pwd)/build/fuzz/out":/out \
-v "$(shell pwd)/tests/fuzz/oss_fuzz_run.sh":/runner.sh \
local-fuzzing:latest \
bash -c "/runner.sh"

# Run fuzz tests for the duration set in FUZZ_TIME.
fuzz-native:
KUBEBUILDER_ASSETS=$(KUBEBUILDER_ASSETS) \
FUZZ_TIME=$(FUZZ_TIME) \
./tests/fuzz/native_go_run.sh

# go-install-tool will 'go install' any package $2 and install it to $1.
define go-install-tool
@[ -f $(1) ] || { \
Expand Down
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