2 files changed, 22 insertions, 2 deletions
diff --git a/railties/environments/shared.rb b/railties/environments/shared.rb
index cd4d5b205a..c4d52d4b26 100644
--- a/railties/environments/shared.rb
+++ b/railties/environments/shared.rb
@@ -41,7 +41,17 @@ ActiveRecord::Base.establish_connection
 
 
 # Configure defaults if the included environment did not.
-RAILS_DEFAULT_LOGGER = Logger.new("#{RAILS_ROOT}/log/#{RAILS_ENV}.log")
+begin
+  RAILS_DEFAULT_LOGGER = Logger.new("#{RAILS_ROOT}/log/#{RAILS_ENV}.log")
+rescue StandardError
+  RAILS_DEFAULT_LOGGER = Logger.new(STDERR)
+  RAILS_DEFAULT_LOGGER.level = Logger::WARN
+  RAILS_DEFAULT_LOGGER.warn(
+    "Rails Error: Unable to access log file. Please ensure that log/#{RAILS_ENV}.log exists and is chmod 0777. " +
+    "The log level has been raised to WARN and the output directed to STDERR until the problem is fixed."
+  )
+end
+
 [ActiveRecord::Base, ActionController::Base, ActionMailer::Base].each do |klass|
   klass.logger ||= RAILS_DEFAULT_LOGGER
 end
diff --git a/railties/environments/shared_for_gem.rb b/railties/environments/shared_for_gem.rb
index e82a6344fe..82a5d3295c 100644
--- a/railties/environments/shared_for_gem.rb
+++ b/railties/environments/shared_for_gem.rb
@@ -38,7 +38,17 @@ ActiveRecord::Base.establish_connection
 
 
 # Configure defaults if the included environment did not.
-RAILS_DEFAULT_LOGGER = Logger.new("#{RAILS_ROOT}/log/#{RAILS_ENV}.log")
+begin
+  RAILS_DEFAULT_LOGGER = Logger.new("#{RAILS_ROOT}/log/#{RAILS_ENV}.log")
+rescue StandardError
+  RAILS_DEFAULT_LOGGER = Logger.new(STDERR)
+  RAILS_DEFAULT_LOGGER.level = Logger::WARN
+  RAILS_DEFAULT_LOGGER.warn(
+    "Rails Error: Unable to access log file. Please ensure that log/#{RAILS_ENV}.log exists and is chmod 0777. " +
+    "The log level has been raised to WARN and the output directed to STDERR until the problem is fixed."
+  )
+end
+
 [ActiveRecord::Base, ActionController::Base, ActionMailer::Base].each do |klass|
   klass.logger ||= RAILS_DEFAULT_LOGGER
 end