Chef-13: restore log_location in client.rb

This was probably a bit too aggressive.  There are people who pass
logger objects in client.rb directly into the log_location, and
we'd break them, and there's no general solution.  We have a couple
of the popular configs that can be passed in as symbols, but not
the general case.

Signed-off-by: Lamont Granquist <lamont@scriptkiddie.org>

3 files changed, 31 insertions, 14 deletions

diff --git a/RELEASE_NOTES.md b/RELEASE_NOTES.md
index ac49fd7edc..fb6d4a8d97 100644
--- a/RELEASE_NOTES.md
+++ b/RELEASE_NOTES.md
@@ -280,21 +280,8 @@ is sent to a pipe.  The logger needs to be specifically requested with `--force-
 
 The `--force-formatter` option does still exist, although it will probably be deprecated in the future.
 
-Setting the `log_location` in the config.rb now applies to both daemonized and command-line invocation and there is
-no magic which dups the logger in order to log to STDOUT on the command line in that case.
-
-Setting logger settings in config.rb is most likely no longer appropriate and those settings should be changed to
-command line flags on the config script or cronjob that invokes chef-client daemonized.  In other words:
-
-```
-chef-client -d -L /var/log/client.rb --force-logger
-```
-
 If your logfiles switch to the formatter, you need to include `--force-logger` for your daemonized runs.
 
-If your command line invocations have no output, delete the config.rb setting for the log_location and move that
-to the command line that invokes your daemon process.
-
 Redirecting output to a file with `chef-client > /tmp/chef.out` now captures the same output as invoking it directly on the command
 line with no redirection.
 
diff --git a/lib/chef/application.rb b/lib/chef/application.rb
index 005418d184..096ce9c392 100644
--- a/lib/chef/application.rb
+++ b/lib/chef/application.rb
@@ -150,6 +150,9 @@ class Chef
     def configure_logging
       configure_log_location
       Chef::Log.init(MonoLogger.new(Chef::Config[:log_location]))
+      if want_additional_logger?
+        configure_stdout_logger
+      end
       Chef::Log.level = resolve_log_level
     rescue StandardError => error
       Chef::Log.fatal("Failed to open or create log file at #{Chef::Config[:log_location]}: #{error.class} (#{error.message})")
@@ -170,6 +173,18 @@ class Chef
         end
     end
 
+    # Based on config and whether or not STDOUT is a tty, should we setup a
+    # secondary logger for stdout?
+    def want_additional_logger?
+      ( Chef::Config[:log_location] != STDOUT ) && STDOUT.tty? && !Chef::Config[:daemonize]
+    end
+
+    def configure_stdout_logger
+      stdout_logger = MonoLogger.new(STDOUT)
+      stdout_logger.formatter = Chef::Log.logger.formatter
+      Chef::Log.loggers << stdout_logger
+    end
+
     # Use of output formatters is assumed if `force_formatter` is set or if `force_logger` is not set
     def using_output_formatter?
       Chef::Config[:force_formatter] || !Chef::Config[:force_logger]
diff --git a/lib/chef/application/windows_service.rb b/lib/chef/application/windows_service.rb
index 5e95c14095..fa4b3fd27e 100644
--- a/lib/chef/application/windows_service.rb
+++ b/lib/chef/application/windows_service.rb
@@ -241,11 +241,26 @@ class Chef
 
       def configure_logging
         Chef::Log.init(MonoLogger.new(resolve_log_location))
+        if want_additional_logger?
+          configure_stdout_logger
+        end
         Chef::Log.level = resolve_log_level
       end
 
+      def configure_stdout_logger
+        stdout_logger = MonoLogger.new(STDOUT)
+        stdout_logger.formatter = Chef::Log.logger.formatter
+        Chef::Log.loggers << stdout_logger
+      end
+
+      # Based on config and whether or not STDOUT is a tty, should we setup a
+      # secondary logger for stdout?
+      def want_additional_logger?
+        ( Chef::Config[:log_location] != STDOUT ) && STDOUT.tty? && !Chef::Config[:daemonize]
+      end
+
       # Use of output formatters is assumed if `force_formatter` is set or if
-      # `force_logger` is not set and STDOUT is to a console (tty)
+      # `force_logger` is not set
       def using_output_formatter?
         Chef::Config[:force_formatter] || !Chef::Config[:force_logger]
       end