lib/rbdock.rb in rbdock-0.1.1 vs lib/rbdock.rb in rbdock-0.1.2

@@ -1,6 +1,48 @@
-require "rbdock/helpers"
+# Enable logging if it is requested.
+require "log4r"
+
+if ENV["RBDOCK_LOG"]
+  require "log4r/config"
+  Log4r.define_levels(*Log4r::Log4rConfig::LogLevels)
+
+  level = nil
+  begin
+    level = Log4r.const_get(ENV["RBDOCK_LOG"].upcase)
+  rescue NameError
+    level = nil
+  end
+
+  level = nil if !level.is_a?(Integer)
+
+  if !level
+    STDERR.puts "Invalid RBDOCK_LOG level is set: #{ENV["RBDOCK_LOG"]}"
+    STDERR.puts "Please use one of the standard log levels: debug, info, warn, or error"
+  end
+
+  if level
+    logger = Log4r::Logger.new("rbdock")
+    logger.outputters = Log4r::Outputter.stderr
+    logger.level = level
+    logger = nil
+  end
+  
+end
+
+# Always make the version avaiable
 require "rbdock/version"
+
+# Display global information
+global_logger = Log4r::Logger.new("rbdock::global")
+global_logger.info("Rbdock version: #{Rbdock::VERSION}")
+global_logger.info("Ruby version: #{RUBY_VERSION}")
+global_logger.info("RubyGems version: #{Gem::VERSION}")
+ENV.each do |k,v|
+  global_logger.info("#{k}=#{v.inspect}") if k =~ /^RBDOCK_/
+end
+
+require "rbdock/helpers"
+
 module Rbdock
   autoload :Command, "rbdock/command"
   autoload :Generate, "rbdock/generate"
 end