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Simplify build for defaulter
This commit is contained in:
Tim Hockin
parent
6d621ea549
commit
0419d11403
@ -35,9 +35,9 @@ SHELL := /bin/bash
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# This rule collects all the generated file sets into a single rule. Other
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# rules should depend on this to ensure generated files are rebuilt.
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.PHONY: generated_files
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generated_files: gen_deepcopy
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generated_files: gen_deepcopy gen_defaulter
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##TH##FIXMEgen_defaulter gen_conversion gen_openapi gen_bindata
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##TH##FIXME gen_conversion gen_openapi gen_bindata
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#
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@ -203,160 +203,100 @@ $(DEEPCOPY_GEN): $(k8s.io/kubernetes/vendor/k8s.io/code-generator/cmd/deepcopy-g
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touch $@
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##TH### Defaulter generation
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##TH###
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##TH### Any package that wants defaulter functions generated must include a
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##TH### comment-tag in column 0 of one file of the form:
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##TH### // +k8s:defaulter-gen=<VALUE>
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##TH###
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##TH### The <VALUE> depends on context:
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##TH### on types:
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##TH### true: always generate a defaulter for this type
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##TH### false: never generate a defaulter for this type
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##TH### on functions:
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##TH### covers: if the function name matches SetDefault_NAME, instructs
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##TH### the generator not to recurse
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##TH### on packages:
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##TH### FIELDNAME: any object with a field of this name is a candidate
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##TH### for having a defaulter generated
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##TH##
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##TH### The result file, in each pkg, of defaulter generation.
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##TH##DEFAULTER_BASENAME := $(GENERATED_FILE_PREFIX)defaults
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##TH##DEFAULTER_FILENAME := $(DEFAULTER_BASENAME).go
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##TH##
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##TH### The tool used to generate defaulters.
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##TH##DEFAULTER_GEN := $(BIN_DIR)/defaulter-gen
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##TH##
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##TH### All directories that request any form of defaulter generation.
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##TH##ifeq ($(DBG_MAKEFILE),1)
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##TH## $(warning ***** finding all +k8s:defaulter-gen tags)
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##TH##endif
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##TH##DEFAULTER_DIRS := $(shell \
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##TH## grep --color=never -l '+k8s:defaulter-gen=' $(ALL_K8S_TAG_FILES) \
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##TH## | xargs -n1 dirname \
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##TH## | LC_ALL=C sort -u \
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##TH##)
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##TH##
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##TH##DEFAULTER_FILES := $(addsuffix /$(DEFAULTER_FILENAME), $(DEFAULTER_DIRS))
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##TH##
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##TH### This rule aggregates the set of files to generate and then generates them all
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##TH### in a single run of the tool.
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##TH##.PHONY: gen_defaulter
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##TH##gen_defaulter: $(DEFAULTER_FILES) $(DEFAULTER_GEN)
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##TH## if [[ -s $(META_DIR)/$(DEFAULTER_GEN).todo ]]; then \
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##TH## pkgs=$$(cat $(META_DIR)/$(DEFAULTER_GEN).todo | paste -sd, -); \
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##TH## if [[ "$(DBG_CODEGEN)" == 1 ]]; then \
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##TH## echo "DBG: running $(DEFAULTER_GEN) for $$pkgs"; \
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##TH## fi; \
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##TH## ./hack/run-in-gopath.sh $(DEFAULTER_GEN) \
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##TH## --v $(KUBE_VERBOSE) \
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##TH## --logtostderr \
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##TH## -i "$$pkgs" \
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##TH## --extra-peer-dirs $$(echo $(addprefix $(PRJ_SRC_PATH)/, $(DEFAULTER_DIRS)) | sed 's/ /,/g') \
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##TH## -O $(DEFAULTER_BASENAME) \
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##TH## "$$@"; \
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##TH## fi
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##TH##
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##TH### For each dir in DEFAULTER_DIRS, this establishes a dependency between the
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##TH### output file and the input files that should trigger a rebuild.
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##TH###
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##TH### The variable value was set in $(GOFILES_META) and included as part of the
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##TH### dependency management logic.
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##TH###
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##TH### Note that this is a deps-only statement, not a full rule (see below). This
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##TH### has to be done in a distinct step because wildcards don't work in static
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##TH### pattern rules.
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##TH###
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##TH### The '$(eval)' is needed because this has a different RHS for each LHS, and
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##TH### would otherwise produce results that make can't parse.
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##TH###
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##TH### We depend on the $(GOFILES_META).stamp to detect when the set of input files
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##TH### has changed. This allows us to detect deleted input files.
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##TH##$(foreach dir, $(DEFAULTER_DIRS), $(eval \
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##TH## $(dir)/$(DEFAULTER_FILENAME): $(META_DIR)/$(dir)/$(GOFILES_META).stamp \
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##TH## $(gofiles__$(dir)) \
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##TH##))
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##TH##
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##TH### For each dir in DEFAULTER_DIRS, for each target in $(defaulters__$(dir)),
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##TH### this establishes a dependency between the output file and the input files
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##TH### that should trigger a rebuild.
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##TH###
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##TH### The variable value was set in $(GOFILES_META) and included as part of the
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##TH### dependency management logic.
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##TH###
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##TH### Note that this is a deps-only statement, not a full rule (see below). This
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##TH### has to be done in a distinct step because wildcards don't work in static
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##TH### pattern rules.
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##TH###
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##TH### The '$(eval)' is needed because this has a different RHS for each LHS, and
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##TH### would otherwise produce results that make can't parse.
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##TH###
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##TH### We depend on the $(GOFILES_META).stamp to detect when the set of input files
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##TH### has changed. This allows us to detect deleted input files.
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##TH##$(foreach dir, $(DEFAULTER_DIRS), \
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##TH## $(foreach tgt, $(defaulters__$(dir)), $(eval \
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##TH## $(dir)/$(DEFAULTER_FILENAME): $(META_DIR)/$(tgt)/$(GOFILES_META).stamp \
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##TH## $(gofiles__$(tgt)) \
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##TH## )) \
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##TH##)
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##TH##
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##TH### Unilaterally remove any leftovers from previous runs.
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##TH##$(shell rm -f $(META_DIR)/$(DEFAULTER_GEN)*.todo)
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##TH##
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##TH### How to regenerate defaulter code. This is a little slow to run, so we batch
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##TH### it up and trigger the batch from the 'generated_files' target.
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##TH##$(DEFAULTER_FILES): $(DEFAULTER_GEN)
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##TH## mkdir -p $$(dirname $(META_DIR)/$(DEFAULTER_GEN))
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##TH## if [[ "$(DBG_CODEGEN)" == 1 ]]; then \
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##TH## echo "DBG: defaulter needed $(@D): $?"; \
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##TH## ls -lf --full-time $@ $? || true; \
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##TH## fi
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##TH## echo $(PRJ_SRC_PATH)/$(@D) >> $(META_DIR)/$(DEFAULTER_GEN).todo
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##TH##
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##TH### This calculates the dependencies for the generator tool, so we only rebuild
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##TH### it when needed. It is PHONY so that it always runs, but it only updates the
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##TH### file if the contents have actually changed. We 'sinclude' this later.
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##TH##.PHONY: $(META_DIR)/$(DEFAULTER_GEN).mk
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##TH##$(META_DIR)/$(DEFAULTER_GEN).mk:
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##TH## mkdir -p $(@D); \
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##TH## (echo -n "$(DEFAULTER_GEN): "; \
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##TH## ./hack/run-in-gopath.sh go list \
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##TH## -f '{{.ImportPath}}{{"\n"}}{{range .Deps}}{{.}}{{"\n"}}{{end}}' \
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##TH## ./vendor/k8s.io/code-generator/cmd/defaulter-gen \
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##TH## | grep --color=never "^$(PRJ_SRC_PATH)/" \
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##TH## | xargs ./hack/run-in-gopath.sh go list \
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##TH## -f '{{$$d := .Dir}}{{$$d}}{{"\n"}}{{range .GoFiles}}{{$$d}}/{{.}}{{"\n"}}{{end}}' \
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##TH## | paste -sd' ' - \
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##TH## | sed 's/ / \\=,/g' \
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##TH## | tr '=,' '\n\t' \
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##TH## | sed "s|$$(pwd -P)/||"; \
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##TH## ) > $@.tmp; \
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##TH## if ! cmp -s $@.tmp $@; then \
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##TH## if [[ "$(DBG_CODEGEN)" == 1 ]]; then \
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##TH## echo "DBG: $(DEFAULTER_GEN).mk changed"; \
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##TH## fi; \
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##TH## cat $@.tmp > $@; \
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##TH## rm -f $@.tmp; \
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##TH## fi
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##TH##
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##TH### Include dependency info for the generator tool. This will cause the rule of
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##TH### the same name to be considered and if it is updated, make will restart.
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##TH##sinclude $(META_DIR)/$(DEFAULTER_GEN).mk
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##TH##
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##TH### How to build the generator tool. The deps for this are defined in
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##TH### the $(DEFAULTER_GEN).mk, above.
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##TH###
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##TH### A word on the need to touch: This rule might trigger if, for example, a
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##TH### non-Go file was added or deleted from a directory on which this depends.
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##TH### This target needs to be reconsidered, but Go realizes it doesn't actually
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##TH### have to be rebuilt. In that case, make will forever see the dependency as
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##TH### newer than the binary, and try to rebuild it over and over. So we touch it,
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##TH### and make is happy.
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##TH##$(DEFAULTER_GEN):
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##TH## hack/make-rules/build.sh ./vendor/k8s.io/code-generator/cmd/defaulter-gen
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##TH## touch $@
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##TH##
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##TH###
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# Defaulter generation
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#
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# Any package that wants defaulter functions generated must include a
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# comment-tag in column 0 of one file of the form:
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# // +k8s:defaulter-gen=<VALUE>
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#
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# The <VALUE> depends on context:
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# on types:
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# true: always generate a defaulter for this type
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# false: never generate a defaulter for this type
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# on functions:
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# covers: if the function name matches SetDefault_NAME, instructs
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# the generator not to recurse
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# on packages:
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# FIELDNAME: any object with a field of this name is a candidate
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# for having a defaulter generated
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# The result file, in each pkg, of defaulter generation.
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DEFAULTER_BASENAME := $(GENERATED_FILE_PREFIX)defaults
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DEFAULTER_FILENAME := $(DEFAULTER_BASENAME).go
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# The tool used to generate defaulters.
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DEFAULTER_GEN := $(BIN_DIR)/defaulter-gen
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# All directories that request any form of defaulter generation.
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ifeq ($(DBG_MAKEFILE),1)
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$(warning ***** finding all +k8s:defaulter-gen tags)
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endif
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DEFAULTER_DIRS := $(shell \
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grep --color=never -l '+k8s:defaulter-gen=' $(ALL_K8S_TAG_FILES) \
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| xargs -n1 dirname \
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| LC_ALL=C sort -u \
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)
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DEFAULTER_FILES := $(addsuffix /$(DEFAULTER_FILENAME), $(DEFAULTER_DIRS))
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# Reset the list of packages that need generation.
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$(shell mkdir -p $$(dirname $(META_DIR)/$(DEFAULTER_GEN)))
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$(shell rm -f $(META_DIR)/$(DEFAULTER_GEN).todo)
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# This rule aggregates the set of files to generate and then generates them all
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# in a single run of the tool.
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.PHONY: gen_defaulter
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gen_defaulter: $(DEFAULTER_GEN) $(META_DIR)/$(DEFAULTER_GEN).todo
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if [[ -s $(META_DIR)/$(DEFAULTER_GEN).todo ]]; then \
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pkgs=$$(cat $(META_DIR)/$(DEFAULTER_GEN).todo | paste -sd, -); \
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if [[ "$(DBG_CODEGEN)" == 1 ]]; then \
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echo "DBG: running $(DEFAULTER_GEN) for $$pkgs"; \
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fi; \
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./hack/run-in-gopath.sh $(DEFAULTER_GEN) \
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--v $(KUBE_VERBOSE) \
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--logtostderr \
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-i "$$pkgs" \
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--extra-peer-dirs $$(echo $(addprefix $(PRJ_SRC_PATH)/, $(DEFAULTER_DIRS)) | sed 's/ /,/g') \
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-O $(DEFAULTER_BASENAME) \
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"$$@"; \
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fi
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# For each dir in DEFAULTER_DIRS, this establishes a dependency between the
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# output file and the input files that should trigger a rebuild.
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#
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# Note that this is a deps-only statement, not a full rule (see below for that).
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#
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# The '$(eval)' is needed because this has a different RHS for each LHS, and
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# would otherwise produce results that make can't parse.
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$(foreach dir, $(DEFAULTER_DIRS), $(eval \
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$(dir)/$(DEFAULTER_FILENAME): $($(PRJ_SRC_PATH)/$(dir)) \
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))
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# How to regenerate defaulter code. This is a little slow to run, so we batch
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# it up and trigger the batch from the 'generated_files' target.
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$(META_DIR)/$(DEFAULTER_GEN).todo: $(DEFAULTER_FILES)
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$(DEFAULTER_FILES): $(DEFAULTER_GEN)
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if [[ "$(DBG_CODEGEN)" == 1 ]]; then \
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echo "DBG: defaulter needed $(@D): $?"; \
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ls -lf --full-time $@ $? || true; \
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fi
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echo $(PRJ_SRC_PATH)/$(@D) >> $(META_DIR)/$(DEFAULTER_GEN).todo
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# How to build the generator tool. The deps for this are defined in
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# the $(GO_PKGDEPS_FILE), above.
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#
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# A word on the need to touch: This rule might trigger if, for example, a
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# non-Go file was added or deleted from a directory on which this depends.
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# This target needs to be reconsidered, but Go realizes it doesn't actually
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# have to be rebuilt. In that case, make will forever see the dependency as
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# newer than the binary, and try to "rebuild" it over and over. So we touch
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# it, and make is happy.
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$(DEFAULTER_GEN): $(k8s.io/kubernetes/vendor/k8s.io/code-generator/cmd/defaulter-gen)
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hack/make-rules/build.sh ./vendor/k8s.io/code-generator/cmd/defaulter-gen
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touch $@
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##TH### Conversion generation
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##TH###
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##TH### Any package that wants conversion functions generated must include one or
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