From 49ec08aaa76c4d1e5ea3286fa56e4afa927bf135 Mon Sep 17 00:00:00 2001
From: Nicholas Seckar <nseckar@gmail.com>
Date: Sat, 15 Oct 2005 19:03:38 +0000
Subject: [PATCH] Added Extension extension to provide support for clean
 backtraces.

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@2623 5ecf4fe2-1ee6-0310-87b1-e25e094e27de
---
 activesupport/CHANGELOG                        |  2 ++
 .../lib/active_support/core_ext/exception.rb   | 18 ++++++++++++++++++
 2 files changed, 20 insertions(+)
 create mode 100644 activesupport/lib/active_support/core_ext/exception.rb

diff --git a/activesupport/CHANGELOG b/activesupport/CHANGELOG
index e6709f0d3e..40ea411ada 100644
--- a/activesupport/CHANGELOG
+++ b/activesupport/CHANGELOG
@@ -1,5 +1,7 @@
 *SVN*
 
+* Added Extension extension to provide support for clean backtraces. [Nicholas Seckar]
+
 * Updated whiny nil to be more concise and useful. [Nicholas Seckar]
 
 * Added Enumerable#first_match [Nicholas Seckar]
diff --git a/activesupport/lib/active_support/core_ext/exception.rb b/activesupport/lib/active_support/core_ext/exception.rb
new file mode 100644
index 0000000000..323d97aa44
--- /dev/null
+++ b/activesupport/lib/active_support/core_ext/exception.rb
@@ -0,0 +1,18 @@
+class Exception
+  
+  alias :clean_message :message
+  
+  TraceSubstitutions = []
+  
+  def clean_backtrace
+    backtrace.collect do |line|
+      TraceSubstitutions.inject(line) do |line, (regexp, sub)|
+        line.gsub regexp, sub
+      end
+    end
+  end
+  
+  def application_backtrace
+    clean_backtrace.reject { |line| line =~ /(vendor|dispatch|ruby|script\/\w+)/ }
+  end
+end
\ No newline at end of file