feat: setup build process (#1)

Signed-off-by: Artur Troian <[email protected]>

.env

@@ -0,0 +1,6 @@
+GO111MODULE=on
+ROOT_DIR=${VANITY_ROOT}
+DEVCACHE_BASE=${VANITY_ROOT}/.cache
+DEVCACHE=${DEVCACHE_BASE}
+DEVCACHE_BIN=${DEVCACHE}/bin
+DEVCACHE_VERSIONS=${DEVCACHE}/versions

.envrc

@@ -0,0 +1,10 @@
+VANITY_ROOT=$(pwd)
+export VANITY_ROOT
+
+dotenv
+
+VANITY_DIRENV_SET=1
+
+export VANITY_DIRENV_SET
+
+make cache

Makefile

@@ -0,0 +1,42 @@
+ifeq (0, $(shell id -u))
+$(warning "make was started with superuser privileges. it may cause issues with direnv")
+endif
+
+ifeq (, $(shell which direnv))
+$(error "No direnv in $(PATH), consider installing. https://direnv.net")
+endif
+
+ifneq (1, $(VANITY_DIRENV_SET))
+$(error "no envrc detected. might need to run \"direnv allow\"")
+endif
+
+# VANITY_ROOT may not be set if environment does not support/use direnv
+# in this case define it manually as well as all required env variables
+ifndef VANITY_ROOT
+$(error "VANITY_ROOT is not set. might need to run \"direnv allow\"")
+endif
+
+VANGEN_VERSION   ?= latest
+VANGEN           := $(DEVCACHE_BIN)/vangen
+VANGEN_VERSION_FILE := $(DEVCACHE_VERSIONS)/vangen/$(VANGEN_VERSION)
+
+$(VANGEN_VERSION_FILE): $(DEVCACHE)
+	@echo "installing vangen $(VANGEN_VERSION) ..."
+	rm -f $(VANGEN)
+	GOBIN=$(DEVCACHE_BIN) go install 4d63.com/vangen@$(VANGEN_VERSION)
+	rm -rf "$(dir $@)"
+	mkdir -p "$(dir $@)"
+	touch $@
+$(VANGEN): $(VANGEN_VERSION_FILE)
+
+
+$(DEVCACHE):
+	@echo "creating .cache dir structure..."
+	mkdir -p $@
+	mkdir -p $(DEVCACHE_BIN)
+	mkdir -p $(DEVCACHE_VERSIONS)
+
+cache: $(DEVCACHE)
+
+vangen: $(VANGEN)
+	$(VANGEN) -config vangen.json -out .