Add install target

Makefile

@@ -3,34 +3,33 @@ TARGET = alacritty
 APP_NAME = Alacritty.app
 ASSETS_DIR = assets
 RELEASE_DIR = target/release
-BINARY_FILE = $(RELEASE_DIR)/$(TARGET)
 APP_TEMPLATE = $(ASSETS_DIR)/osx/$(APP_NAME)
 APP_DIR = $(RELEASE_DIR)/osx
+APP_BINARY = $(RELEASE_DIR)/$(TARGET)
 APP_BINARY_DIR  = $(APP_DIR)/$(APP_NAME)/Contents/MacOS
 
-
 DMG_NAME = Alacritty.dmg
 DMG_DIR = $(RELEASE_DIR)/osx
 
 vpath $(TARGET) $(RELEASE_DIR)
 vpath $(APP_NAME) $(APP_DIR)
+vpath $(DMG_NAME) $(APP_DIR)
 
 all: help
 
 help: ## Prints help for targets with comments
 	@grep -E '^[a-zA-Z._-]+:.*?## .*$$' $(MAKEFILE_LIST) | sort | awk 'BEGIN {FS = ":.*?## "}; {printf "\033[36m%-30s\033[0m %s\n", $$1, $$2}'
 
-binary: | $(TARGET) ## Build release binary
+binary: | $(TARGET) ## Build release binary with cargo
 $(TARGET):
-	@echo "Please build '$@' with 'cargo build --release'"
+	cargo build --release
 
 app: | $(APP_NAME) ## Clone Alacritty.app template and mount binary
 $(APP_NAME): $(TARGET) $(APP_TEMPLATE)
 	@mkdir -p $(APP_DIR)
 	@cp -R $(APP_TEMPLATE) $(APP_DIR)
-	@mkdir $(APP_BINARY_DIR)
-	@cp $(BINARY_FILE) $(APP_BINARY_DIR)
-	@echo "$@ created in $(APP_DIR)"
+	@cp $(APP_BINARY) $(APP_BINARY_DIR)
+	@echo "Created '$@' in '$(APP_DIR)'"
 
 dmg: | $(DMG_NAME) ## Pack Alacritty.app into .dmg
 $(DMG_NAME): $(APP_NAME)
@@ -40,9 +39,12 @@ $(DMG_NAME): $(APP_NAME)
 		-fs HFS+ \
 		-srcfolder $(APP_DIR) \
 		-ov -format UDZO
-	@echo "$@ packed in $(APP_DIR)"
+	@echo "Packed '$@' in '$(APP_DIR)'"
 
-.PHONY: app binary clean dmg
+install: $(DMG_NAME) ## Mount disk image
+	@open $(DMG_DIR)/$(DMG_NAME)
+
+.PHONY: app binary clean dmg install
 
 clean: ## Remove all artifacts
 	-rm -rf $(APP_DIR)