Update CLI to handle missing ssl_key and ssl_cert

src/kemal.cr

@@ -3,9 +3,7 @@ require "./kemal/middleware/*"
 
 at_exit do
   Kemal::CLI.new
-
   config = Kemal.config
-
   logger = Kemal::Logger.new
   config.add_handler logger
   config.add_handler Kemal::StaticFileHandler.new(config.public_folder)

src/kemal/cli.cr

@@ -3,33 +3,50 @@ require "option_parser"
 module Kemal
   class CLI
     def initialize
-      ssl = nil
+      @ssl_enabled = false
+      @key_file = nil
+      @cert_file = nil
+      @config = Kemal.config
+      parse
+      configure_ssl
+    end
+
+    def parse
       OptionParser.parse! do |opts|
         opts.on("-b HOST", "--bind HOST", "HTTP host to bind (defaults to 0.0.0.0)") do |host_binding|
-          Kemal.config.host_binding = host_binding
+          @config.host_binding = host_binding
         end
         opts.on("-p PORT", "--port PORT", "HTTP port to listen connections (defaults to 3000)") do |opt_port|
-          Kemal.config.port = opt_port.to_i
+          @config.port = opt_port.to_i
         end
         opts.on("-e ENV", "--environment ENV", "Running environment [development, production] (defaults to development). Set `production` to boost performance") do |env|
-          Kemal.config.env = env
+          @config.env = env
         end
         opts.on("-s", "--ssl", "Enables SSL") do
-          ssl = Kemal::Middleware::SSL.new
+          @ssl_enabled = true
         end
         opts.on("--ssl-key-file FILE", "SSL key file") do |key_file|
-          ssl.not_nil!.set_key_file key_file
+          @key_file = key_file
         end
         opts.on("--ssl-cert-file FILE", "SSL certificate file") do |cert_file|
-          ssl.not_nil!.set_cert_file cert_file
+          @cert_file = cert_file
         end
         opts.on("-h", "--help", "Shows this help") do
           puts opts
           exit 0
         end
       end
+    end
 
-      Kemal.config.ssl = ssl.not_nil!.context if ssl
+    def configure_ssl
+      if @ssl_enabled
+        puts "SSL Key Not Found"; exit unless @key_file
+        puts "SSL Certificate Not Found"; exit unless @cert_file
+        ssl = Kemal::Middleware::SSL.new
+        ssl.set_key_file @key_file.not_nil!.to_slice
+        ssl.set_cert_file @cert_file.not_nil!.to_slice
+        Kemal.config.ssl = ssl.context
+      end
     end
   end
 end