Froze rails gems

[depot.git] / vendor / rails / activesupport / lib / active_support / core_ext / kernel / reporting.rb

diff --git a/vendor/rails/activesupport/lib/active_support/core_ext/kernel/reporting.rb b/vendor/rails/activesupport/lib/active_support/core_ext/kernel/reporting.rb
new file mode 100644 (file)
index 0000000..0f101e8
--- /dev/null
+++ b/vendor/rails/activesupport/lib/active_support/core_ext/kernel/reporting.rb
@@ -0,0 +1,59 @@
+module Kernel
+  # Sets $VERBOSE to nil for the duration of the block and back to its original value afterwards.
+  #
+  #   silence_warnings do
+  #     value = noisy_call # no warning voiced
+  #   end
+  #
+  #   noisy_call # warning voiced
+  def silence_warnings
+    old_verbose, $VERBOSE = $VERBOSE, nil
+    yield
+  ensure
+    $VERBOSE = old_verbose
+  end
+
+  # Sets $VERBOSE to true for the duration of the block and back to its original value afterwards.
+  def enable_warnings
+    old_verbose, $VERBOSE = $VERBOSE, true
+    yield
+  ensure
+    $VERBOSE = old_verbose
+  end
+
+  # For compatibility
+  def silence_stderr #:nodoc:
+    silence_stream(STDERR) { yield }
+  end
+
+  # Silences any stream for the duration of the block.
+  #
+  #   silence_stream(STDOUT) do
+  #     puts 'This will never be seen'
+  #   end
+  #
+  #   puts 'But this will'
+  def silence_stream(stream)
+    old_stream = stream.dup
+    stream.reopen(RUBY_PLATFORM =~ /mswin/ ? 'NUL:' : '/dev/null')
+    stream.sync = true
+    yield
+  ensure
+    stream.reopen(old_stream)
+  end
+
+  # Blocks and ignores any exception passed as argument if raised within the block.
+  #
+  #   suppress(ZeroDivisionError) do
+  #     1/0
+  #     puts "This code is NOT reached"
+  #   end
+  #
+  #   puts "This code gets executed and nothing related to ZeroDivisionError was seen"
+  def suppress(*exception_classes)
+    begin yield
+    rescue Exception => e
+      raise unless exception_classes.any? { |cls| e.kind_of?(cls) }
+    end
+  end
+end
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