7 files changed, 24 insertions, 18 deletions
diff --git a/railties/lib/rails/commands/commands_tasks.rb b/railties/lib/rails/commands/commands_tasks.rb
index 6cfbc70c51..8bae08e44e 100644
--- a/railties/lib/rails/commands/commands_tasks.rb
+++ b/railties/lib/rails/commands/commands_tasks.rb
@@ -127,7 +127,7 @@ EOT
         require 'rails/generators'
         require_application_and_environment!
         Rails.application.load_generators
-        require "rails/commands/#{command}"
+        require_command!(command)
       end
 
       # Change to the application's path if there is no config.ru file in current directory.
diff --git a/railties/lib/rails/commands/dbconsole.rb b/railties/lib/rails/commands/dbconsole.rb
index 1a2613a8d0..0d8b3de0eb 100644
--- a/railties/lib/rails/commands/dbconsole.rb
+++ b/railties/lib/rails/commands/dbconsole.rb
@@ -44,7 +44,7 @@ module Rails
 
         find_cmd_and_exec(['mysql', 'mysql5'], *args)
 
-      when "postgresql", "postgres", "postgis"
+      when /^postgres|^postgis/
         ENV['PGUSER']     = config["username"] if config["username"]
         ENV['PGHOST']     = config["host"] if config["host"]
         ENV['PGPORT']     = config["port"].to_s if config["port"]
@@ -74,6 +74,21 @@ module Rails
 
         find_cmd_and_exec('sqlplus', logon)
 
+      when "sqlserver"
+        args = []
+
+        args += ["-D", "#{config['database']}"] if config['database']
+        args += ["-U", "#{config['username']}"] if config['username']
+        args += ["-P", "#{config['password']}"] if config['password']
+
+        if config['host']
+          host_arg = "#{config['host']}"
+          host_arg << ":#{config['port']}" if config['port']
+          args += ["-S", host_arg]
+        end
+
+        find_cmd_and_exec("sqsh", *args)
+
       else
         abort "Unknown command-line client for #{config['database']}. Submit a Rails patch to add support!"
       end
@@ -163,7 +178,7 @@ module Rails
       found = commands.detect do |cmd|
         dirs_on_path.detect do |path|
           full_path_command = File.join(path, cmd)
-          File.executable? full_path_command
+          File.file?(full_path_command) && File.executable?(full_path_command)
         end
       end
 
diff --git a/railties/lib/rails/commands/destroy.rb b/railties/lib/rails/commands/destroy.rb
index 5479da86a0..ce26cc3fde 100644
--- a/railties/lib/rails/commands/destroy.rb
+++ b/railties/lib/rails/commands/destroy.rb
@@ -1,5 +1,7 @@
 require 'rails/generators'
 
+#if no argument/-h/--help is passed to rails destroy command, then
+#it generates the help associated.
 if [nil, "-h", "--help"].include?(ARGV.first)
   Rails::Generators.help 'destroy'
   exit
diff --git a/railties/lib/rails/commands/generate.rb b/railties/lib/rails/commands/generate.rb
index 351c59c645..926c36b967 100644
--- a/railties/lib/rails/commands/generate.rb
+++ b/railties/lib/rails/commands/generate.rb
@@ -1,5 +1,7 @@
 require 'rails/generators'
 
+#if no argument/-h/--help is passed to rails generate command, then
+#it generates the help associated.
 if [nil, "-h", "--help"].include?(ARGV.first)
   Rails::Generators.help 'generate'
   exit
diff --git a/railties/lib/rails/commands/plugin.rb b/railties/lib/rails/commands/plugin.rb
index 95bbdd4cdf..52d8966ead 100644
--- a/railties/lib/rails/commands/plugin.rb
+++ b/railties/lib/rails/commands/plugin.rb
@@ -11,7 +11,7 @@ else
               end
     if File.exist?(railsrc)
       extra_args_string = File.read(railsrc)
-      extra_args = extra_args_string.split(/\n+/).flat_map {|l| l.split}
+      extra_args = extra_args_string.split(/\n+/).flat_map(&:split)
       puts "Using #{extra_args.join(" ")} from #{railsrc}"
       ARGV.insert(1, *extra_args)
     end
diff --git a/railties/lib/rails/commands/server.rb b/railties/lib/rails/commands/server.rb
index c479e92ae0..e39f0920af 100644
--- a/railties/lib/rails/commands/server.rb
+++ b/railties/lib/rails/commands/server.rb
@@ -24,7 +24,7 @@ module Rails
           opts.on("-p", "--port=port", Integer,
                   "Runs Rails on the specified port.", "Default: 3000") { |v| options[:Port] = v }
           opts.on("-b", "--binding=IP", String,
-                  "Binds Rails to the specified IP.", "Default: 0.0.0.0") { |v| options[:Host] = v }
+                  "Binds Rails to the specified IP.", "Default: localhost") { |v| options[:Host] = v }
           opts.on("-c", "--config=file", String,
                   "Uses a custom rackup configuration.") { |v| options[:config] = v }
           opts.on("-d", "--daemon", "Runs server as a Daemon.") { options[:daemonize] = true }
@@ -126,10 +126,6 @@ module Rails
         puts "=> Rails #{Rails.version} application starting in #{Rails.env} on #{url}"
         puts "=> Run `rails server -h` for more startup options"
 
-        if options[:Host].to_s.match(/0\.0\.0\.0/)
-          puts "=> Notice: server is listening on all interfaces (#{options[:Host]}). Consider using 127.0.0.1 (--binding option)"
-        end
-
         puts "=> Ctrl-C to shutdown server" unless options[:daemonize]
       end
 
diff --git a/railties/lib/rails/commands/update.rb b/railties/lib/rails/commands/update.rb
deleted file mode 100644
index 59fae5c337..0000000000
--- a/railties/lib/rails/commands/update.rb
+++ /dev/null
@@ -1,9 +0,0 @@
-require File.expand_path(File.join(File.dirname(__FILE__), '..', 'generators'))
-
-if ARGV.size == 0
-  Rails::Generators.help
-  exit
-end
-
-name = ARGV.shift
-Rails::Generators.invoke name, ARGV, behavior: :skip