Bump envtest to 1.24.0

Signed-off-by: Paulo Gomes <paulo.gomes@weave.works>

Makefile

@@ -33,7 +33,11 @@ REPOSITORY_ROOT := $(shell git rev-parse --show-toplevel)
 BUILD_DIR := $(REPOSITORY_ROOT)/build
 
 # Other dependency versions
-ENVTEST_BIN_VERSION ?= 1.19.2
+ENVTEST_BIN_VERSION ?= 1.24.0
+
+# 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)
@@ -206,9 +210,9 @@ ifneq ($(shell grep -o 'LIBGIT2_IMG ?= \w.*' Makefile | cut -d ' ' -f 3):$(shell
  exit 1; \
  }
 endif
-ifneq ($(shell grep -o 'LIBGIT2_TAG ?= \w.*' Makefile | cut -d ' ' -f 3), $(shell grep -o "LIBGIT2_TAG=.*" tests/fuzz/oss_fuzz_build.sh | sed 's;LIBGIT2_TAG="$${LIBGIT2_TAG:-;;g' | sed 's;}";;g'))
+ifneq ($(shell grep -o 'LIBGIT2_TAG ?= \w.*' Makefile | cut -d ' ' -f 3), $(shell grep -o "LIBGIT2_TAG=.*" tests/fuzz/oss_fuzz_prebuild.sh | sed 's;LIBGIT2_TAG="$${LIBGIT2_TAG:-;;g' | sed 's;}";;g'))
  @{ \
- echo "LIBGIT2_TAG must match in both Makefile and tests/fuzz/oss_fuzz_build.sh"; \
+ echo "LIBGIT2_TAG must match in both Makefile and tests/fuzz/oss_fuzz_prebuild.sh"; \
  exit 1; \
  }
 endif
@@ -232,26 +236,32 @@ rm -rf $$TMP_DIR ;\
 }
 endef
 
-# Build fuzzers
+# Build fuzzers used by oss-fuzz.
 fuzz-build: $(LIBGIT2)
- rm -rf $(BUILD_DIR)/fuzz/
- mkdir -p $(BUILD_DIR)/fuzz/out/
+ rm -rf $(shell pwd)/build/fuzz/
+ mkdir -p $(shell pwd)/build/fuzz/out/
 
- docker build . --pull --tag local-fuzzing:latest -f tests/fuzz/Dockerfile.builder
+ docker build . --tag local-fuzzing:latest -f tests/fuzz/Dockerfile.builder
  docker run --rm \
  -e FUZZING_LANGUAGE=go -e SANITIZER=address \
  -e CIFUZZ_DEBUG='True' -e OSS_FUZZ_PROJECT_NAME=fluxcd \
- -v "$(BUILD_DIR)/fuzz/out":/out \
+ -v "$(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 "$(BUILD_DIR)/fuzz/out":/out \
- -v "$(shell go env GOMODCACHE):/root/go/pkg/mod" \
+ -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
+
 # Creates an env file that can be used to load all source-controller's dependencies
 # this is handy when you want to run adhoc debug sessions on tests or start the 
 # controller in a new debug session.