Add mod-tidy and mod-verify make targets to ensure that all go modules are up to date

This change adds mod-tidy and mod-verify make targets that mirror what is done for
containerd. This should ensure that the module files in the root as well as in
subfolders are up to date.

Signed-off-by: Evan Lezar <elezar@nvidia.com>

Author: elezar

Makefile

@@ -1,4 +1,16 @@
+# Copyright © The CDI Authors
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#     http://www.apache.org/licenses/LICENSE-2.0
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 GO_CMD   := go
+GO       := $(GO_CMD)
 GO_BUILD := $(GO_CMD) build
 GO_TEST  := $(GO_CMD) test -race -v -cover
 
@@ -8,7 +20,8 @@ GO_VET   := $(GO_CMD) vet
 
 CDI_PKG  := $(shell grep ^module go.mod | sed 's/^module *//g')
 
-BINARIES := bin/cdi bin/validate
+CMDS := $(patsubst ./cmd/%/,%,$(sort $(dir $(wildcard ./cmd/*/))))
+BINARIES := $(patsubst %,bin/%,$(CMDS))
 
 ifneq ($(V),1)
   Q := @
@@ -45,13 +58,29 @@ vet:
 # build targets
 #
 
-bin/%:
+$(BINARIES): bin/%:
 	$(Q)echo "Building $@..."; \
-	$(GO_BUILD) -o $@ ./$(subst bin/,cmd/,$@)
+	cd cmd/$(*) $(GO_BUILD) -o $(abspath $@) ./cmd/$(*)
 
-bin/cdi:
-	$(Q)echo "Building $@..."; \
-	cd cmd/cdi; $(GO_BUILD) -o $(abspath $@) .
+#
+# vendoring targets
+#
+.PHONY: mod-verify mod-tidy $(MOD_TIDY_TARGETS) $(MOD_VERIFY_TARGETS)
+
+MOD_TARGETS := $(CMDS) ..
+MOD_TIDY_TARGETS := $(patsubst %,mod-tidy-%,$(MOD_TARGETS))
+MOD_VERIFY_TARGETS := $(patsubst %,mod-verify-%,$(MOD_TARGETS))
+
+$(MOD_TIDY_TARGETS): mod-tidy-%:
+	@$(Q)echo "Running $@... in $(abspath ./cmd/$(*))"
+	@(cd $(abspath ./cmd/$(*)) && ${GO} mod tidy)
+
+$(MOD_VERIFY_TARGETS): mod-verify-%: mod-tidy-%
+	@$(Q)echo "Running $@... $(abspath ./cmd/$(*))"
+	@(cd $(abspath ./cmd/$(*)) && ${GO} mod verify)
+
+mod-verify: $(MOD_VERIFY_TARGETS)
+mod-tidy: $(MOD_TIDY_TARGETS)
 
 #
 # cleanup targets
@@ -83,7 +112,13 @@ test-schema: bin/validate
 # dependencies
 #
 
-bin/validate: cmd/validate/validate.go $(wildcard schema/*.json)
+bin/validate: $(wildcard schema/*.json) $(wildcard cmd/validate/*.go cmd/validate/cmd/*.go) $(shell \
+            for dir in \
+                $$(cd ./cmd/validate; $(GO_CMD) list -f '{{ join .Deps "\n"}}' ./... | \
+                      grep $(CDI_PKG)/pkg/ | \
+                      sed 's:$(CDI_PKG):.:g'); do \
+                find $$dir -name \*.go; \
+            done | sort | uniq)
 
 # quasi-automatic dependency for bin/cdi
 bin/cdi: $(wildcard cmd/cdi/*.go cmd/cdi/cmd/*.go) $(shell \
@@ -93,3 +128,4 @@ bin/cdi: $(wildcard cmd/cdi/*.go cmd/cdi/cmd/*.go) $(shell \
                       sed 's:$(CDI_PKG):.:g'); do \
                 find $$dir -name \*.go; \
             done | sort | uniq)
+