Replace Rakefile with Makefile

Makefile

@@ -0,0 +1,22 @@
+
+PROGNAME=noozoid
+BUILD_DIR=_build
+
+all: help
+
+build: # ## build binary
+	mkdir -p $(BUILD_DIR)
+	crystal build -o $(BUILD_DIR)/$(PROGNAME) src/main.cr
+
+help: ## print this help
+	@echo "Usage: make <target>"
+	@echo ""
+	@echo "With one of following targets:"
+	@echo ""
+	@awk 'BEGIN {FS = ":.*?## "} \
+	  /^[a-zA-Z_-]+:.*?## / \
+	  { sub("\\\\n",sprintf("\n%22c"," "), $$2); \
+	        printf("\033[36m%-20s\033[0m %s\n", $$1, $$2); \
+	  }' $(MAKEFILE_LIST)
+	@echo ""
+

Rakefile

@@ -1,28 +0,0 @@
-require "bundler/gem_tasks"
-require "rake/testtask"
-require 'rubocop/rake_task'
-
-# Add additional test suite definitions to the default test task here
-namespace :spec do
-  desc 'Runs RuboCop on specified directories'
-  RuboCop::RakeTask.new(:rubocop) do |task|
-    # Dirs: app, lib, test
-    task.patterns = ['exe/**/*.rb', 'lib/**/*.rb', 'spec/**/*_spec.rb']
-
-    # Make it easier to disable cops.
-    task.options << "--display-cop-names"
-
-    # Abort on failures (fix your code first)
-    task.fail_on_error = true
-  end
-end
-
-Rake::TestTask.new(:spec) do |t|
-  t.libs << "spec"
-  t.libs << "lib"
-  t.test_files = FileList['spec/**/*_spec.rb']
-end
-
-Rake::Task[:spec].enhance ['spec:rubocop']
-
-task :default => :spec