Class: ConvenientService::Support::BacktraceCleaner

Inherits:
Dependencies::Extractions::ActiveSupportBacktraceCleaner::BacktraceCleaner show all
Defined in:
lib/convenient_service/support/backtrace_cleaner.rb

Overview

Rails v7.1.2 Backtrace Cleaner descendant. Has Convenient Service specific silencer - ‘add_convenient_service_silencer`. By default, it uses only `add_stdlib_silencer` and `add_convenient_service_silencer`.

See Also:

Instance Method Summary collapse

Methods inherited from Dependencies::Extractions::ActiveSupportBacktraceCleaner::BacktraceCleaner

#add_filter, #add_silencer, #clean_frame, #remove_filters!, #remove_silencers!

Constructor Details

#initialize ⇒ void

Note:

‘ConvenientService::Support::BacktraceCleaner` intentionally does NOT exclude external gems lines from backtrace.

See Also:



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# File 'lib/convenient_service/support/backtrace_cleaner.rb', line 34

def initialize(...)
  super

  remove_filters!
  remove_silencers!

  ##
  # NOTE: Uses `::RbConfig` to resolve stdlib directory.
  # - https://idiosyncratic-ruby.com/42-ruby-config.html
  # - https://github.com/ruby/ruby/blob/master/tool/mkconfig.rb
  #
  add_stdlib_silencer

  ##
  # NOTE:
  #
  add_convenient_service_silencer
end

Instance Method Details

#add_convenient_service_silencer ⇒ void

Note:

To bring back Convenient Service lines to backtraces, use the ‘remove_silencers` or check the `CleansExceptionBacktrace` plugin.

This method returns an undefined value.

Since Convenient Service is using middleware chains under the hood, exception backtraces may be huge. As a consequence, it takes too much time during the debugging process to find the application line of code that causes the exception. This silencer removes all Convenient Service lines from backtraces.



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# File 'lib/convenient_service/support/backtrace_cleaner.rb', line 89

def add_convenient_service_silencer
  add_silencer do |line|
    next false if line.start_with?(::ConvenientService.examples_root.to_s)
    next false if line.start_with?(::ConvenientService.spec_root.to_s)

    line.start_with?(::ConvenientService.root.to_s)
  end
end

#clean(backtrace, *args) ⇒ Array<String>

Works exactly in the same way as the original ‘clean`, except it falls back to the original backtrace in case of any exceptions inside filters or silencers. Also returns an empty array, when `backtrace` is `nil`.

Returns:

  • (Array<String>)

See Also:



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# File 'lib/convenient_service/support/backtrace_cleaner.rb', line 111

def clean(backtrace, *args)
  if backtrace.nil?
    ::ConvenientService.logger.warn { "[BacktraceCleaner] `nil` backtrace | Empty array is used as fallback" }

    return []
  end

  begin
    super
  rescue
    ::ConvenientService.logger.warn { "[BacktraceCleaner] Some filter or silencer is broken | Original backtrace is used as fallback" }

    backtrace
  end
end