Merge pull request #15 from packsaddle/feat/logger

Feat/logger

lib/saddler.rb

@@ -1,6 +1,21 @@
+require 'logger'
 require 'saddler/version'
 require 'saddler/reporter'
 
 module Saddler
-  # Your code goes here...
+  def self.default_logger
+    logger = Logger.new(STDERR)
+    logger.progname = 'Saddler'
+    logger.level = Logger::WARN
+    logger
+  end
+
+  def self.logger
+    return @logger if @logger
+    @logger = default_logger
+  end
+
+  class << self
+    attr_writer :logger
+  end
 end

lib/saddler/cli.rb

@@ -19,7 +19,16 @@ def version
     option :options, type: :hash, default: {}
     option :require
     option :reporter
+    option :debug, type: :boolean, default: false
+    option :verbose, type: :boolean, default: false
     def report
+      if options[:debug]
+        logger.level = Logger::DEBUG
+      elsif options[:verbose]
+        logger.level = Logger::INFO
+      end
+      logger.debug(options)
+
       data = \
           if options[:data]
             options[:data]
@@ -30,15 +39,34 @@ def report
             ARGF.read
           end
 
-      abort('no input') if !data || data.empty?
+      if !data || data.empty?
+        logger.error('no input')
+        abort
+      end
+      logger.info(data)
 
       require options[:require] if options[:require]
       if options[:reporter]
         reporter = ::Saddler::Reporter.add_reporter(options[:reporter], $stdout)
       end
 
-      abort('no reporter') unless reporter
-      reporter.report(data, options[:options])
+      unless reporter
+        logger.error('no reporter')
+        abort
+      end
+
+      begin
+        reporter.report(data, options[:options])
+      rescue StandardError => e
+        logger.error(e.message)
+        logger.error(e.backtrace)
+      end
+    end
+
+    no_commands do
+      def logger
+        ::Saddler.logger
+      end
     end
   end
 end