Improve build tooling (#107)

Signed-off-by: Kemal Akkoyun <[email protected]>

Author: kakkoyun

.gitignore

@@ -1,2 +1,2 @@
-jb
+tmp
 vendor/

Makefile

@@ -1,4 +1,13 @@
-JSONNET_FMT := jsonnetfmt -n 2 --max-blank-lines 2 --string-style s --comment-style s
+SHELL=/usr/bin/env bash -o pipefail
+BIN_DIR ?= $(shell pwd)/tmp/bin
+
+EMBEDMD ?= $(BIN_DIR)/embedmd
+GOJSONTOYAML ?= $(BIN_DIR)/gojsontoyaml
+JSONNET ?= $(BIN_DIR)/jsonnet
+JSONNET_BUNDLER ?= $(BIN_DIR)/jb
+JSONNET_FMT ?= $(BIN_DIR)/jsonnetfmt
+JSONNET_SRC = $(shell find . -name 'vendor' -prune -o -name 'jsonnet/vendor' -prune -o -name 'tmp' -prune -o -name '*.libsonnet' -print -o -name '*.jsonnet' -print)
+JSONNET_FMT_CMD := $(JSONNET_FMT) -n 2 --max-blank-lines 2 --string-style s --comment-style s
 
 CONTAINER_CMD:=docker run --rm \
 		-u="$(shell id -u):$(shell id -g)" \
@@ -9,6 +18,9 @@ CONTAINER_CMD:=docker run --rm \
 		-e GO111MODULE=on \
 		quay.io/coreos/jsonnet-ci
 
+EXAMPLES := examples
+MANIFESTS := manifests
+
 all: generate fmt
 
 .PHONY: generate-in-docker
@@ -17,28 +29,48 @@ generate-in-docker:
 	$(CONTAINER_CMD) make $(MFLAGS) generate
 
 .PHONY: generate
-generate: manifests **.md
-
-**.md: $(shell find examples) build.sh example.jsonnet
-	embedmd -w `find . -name "*.md" | grep -v vendor`
+generate: vendor ${MANIFESTS} **.md
 
-manifests: vendor example.jsonnet build.sh
-	rm -rf manifests
-	./build.sh
+**.md: $(EMBEDMD) $(shell find ${EXAMPLES}) build.sh example.jsonnet
+	$(EMBEDMD) -w `find . -name "*.md" | grep -v vendor`
 
-jb:
-	curl -L -o jb "https://github.com/jsonnet-bundler/jsonnet-bundler/releases/download/v0.2.0/jb-$(shell go env GOOS)-$(shell go env GOARCH)"
-	chmod +x jb
-
-vendor: jb jsonnetfile.json jsonnetfile.lock.json
-	rm -rf vendor
-	./jb install
+.PHONY: ${MANIFESTS}
+${MANIFESTS}: $(JSONNET) $(GOJSONTOYAML) vendor example.jsonnet build.sh
+	@rm -rf ${MANIFESTS}
+	@mkdir -p ${MANIFESTS}
+	PATH=$$PATH:$$(pwd)/$(BIN_DIR) ./build.sh
 
 .PHONY: fmt
-fmt:
-	find . -name 'vendor' -prune -o -name '*.libsonnet' -print -o -name '*.jsonnet' -print | \
-		xargs -n 1 -- $(JSONNET_FMT) -i
+fmt: $(JSONNET_FMT)
+	PATH=$$PATH:$$(pwd)/$(BIN_DIR) echo ${JSONNET_SRC} | xargs -n 1 -- $(JSONNET_FMT_CMD) -i
+
+vendor: | $(JSONNET_BUNDLER) jsonnetfile.json jsonnetfile.lock.json
+	$(JSONNET_BUNDLER) install
 
 .PHONY: clean
 clean:
+	-rm -rf tmp/bin
 	rm -rf manifests/
+
+$(BIN_DIR):
+	mkdir -p $(BIN_DIR)
+
+$(EMBEDMD): $(BIN_DIR)
+	go get -d github.com/campoy/embedmd
+	go build -o $@ github.com/campoy/embedmd
+
+$(GOJSONTOYAML): $(BIN_DIR)
+	go get -d github.com/brancz/gojsontoyaml
+	go build -o $@ github.com/brancz/gojsontoyaml
+
+$(JSONNET): $(BIN_DIR)
+	go get -d github.com/google/go-jsonnet/cmd/jsonnet
+	go build -o $@ github.com/google/go-jsonnet/cmd/jsonnet
+
+$(JSONNET_FMT): $(BIN_DIR)
+	go get -d github.com/google/go-jsonnet/cmd/jsonnetfmt
+	go build -o $@ github.com/google/go-jsonnet/cmd/jsonnetfmt
+
+$(JSONNET_BUNDLER): $(BIN_DIR)
+	curl -L -o $(JSONNET_BUNDLER) "https://github.com/jsonnet-bundler/jsonnet-bundler/releases/download/v0.2.0/jb-$(shell go env GOOS)-$(shell go env GOARCH)"
+	chmod +x $(JSONNET_BUNDLER)