diff options
Diffstat (limited to 'activesupport/lib/active_support/backtrace_cleaner.rb')
-rw-r--r-- | activesupport/lib/active_support/backtrace_cleaner.rb | 20 |
1 files changed, 7 insertions, 13 deletions
diff --git a/activesupport/lib/active_support/backtrace_cleaner.rb b/activesupport/lib/active_support/backtrace_cleaner.rb index 8f8deb9692..7c3a41288b 100644 --- a/activesupport/lib/active_support/backtrace_cleaner.rb +++ b/activesupport/lib/active_support/backtrace_cleaner.rb @@ -1,23 +1,21 @@ module ActiveSupport - # Backtraces often include many lines that are not relevant for the context under review. This makes it hard to find the + # Backtraces often include many lines that are not relevant for the context under review. This makes it hard to find the # signal amongst the backtrace noise, and adds debugging time. With a BacktraceCleaner, filters and silencers are used to # remove the noisy lines, so that only the most relevant lines remain. # # Filters are used to modify lines of data, while silencers are used to remove lines entirely. The typical filter use case - # is to remove lengthy path information from the start of each line, and view file paths relevant to the app directory - # instead of the file system root. The typical silencer use case is to exclude the output of a noisy library from the + # is to remove lengthy path information from the start of each line, and view file paths relevant to the app directory + # instead of the file system root. The typical silencer use case is to exclude the output of a noisy library from the # backtrace, so that you can focus on the rest. # - # ==== Example: - # # bc = BacktraceCleaner.new # bc.add_filter { |line| line.gsub(Rails.root, '') } # bc.add_silencer { |line| line =~ /mongrel|rubygems/ } # bc.clean(exception.backtrace) # will strip the Rails.root prefix and skip any lines from mongrel or rubygems # - # To reconfigure an existing BacktraceCleaner (like the default one in Rails) and show as much data as possible, you can - # always call <tt>BacktraceCleaner#remove_silencers!</tt>, which will restore the backtrace to a pristine state. If you - # need to reconfigure an existing BacktraceCleaner so that it does not filter or modify the paths of any lines of the + # To reconfigure an existing BacktraceCleaner (like the default one in Rails) and show as much data as possible, you can + # always call <tt>BacktraceCleaner#remove_silencers!</tt>, which will restore the backtrace to a pristine state. If you + # need to reconfigure an existing BacktraceCleaner so that it does not filter or modify the paths of any lines of the # backtrace, you can call BacktraceCleaner#remove_filters! These two methods will give you a completely untouched backtrace. # # Inspired by the Quiet Backtrace gem by Thoughtbot. @@ -42,19 +40,15 @@ module ActiveSupport # Adds a filter from the block provided. Each line in the backtrace will be mapped against this filter. # - # Example: - # # # Will turn "/my/rails/root/app/models/person.rb" into "/app/models/person.rb" # backtrace_cleaner.add_filter { |line| line.gsub(Rails.root, '') } def add_filter(&block) @filters << block end - # Adds a silencer from the block provided. If the silencer returns true for a given line, it will be excluded from + # Adds a silencer from the block provided. If the silencer returns true for a given line, it will be excluded from # the clean backtrace. # - # Example: - # # # Will reject all lines that include the word "mongrel", like "/gems/mongrel/server.rb" or "/app/my_mongrel_server/rb" # backtrace_cleaner.add_silencer { |line| line =~ /mongrel/ } def add_silencer(&block) |