lib/rspec/core/backtrace_formatter.rb
module RSpec
module Core
# @private
class BacktraceFormatter
# @private
attr_accessor :exclusion_patterns, :inclusion_patterns
def initialize
@full_backtrace = false
patterns = %w[ /lib\d*/ruby/ bin/ exe/rspec /lib/bundler/ /exe/bundle: ]
patterns << "org/jruby/" if RUBY_PLATFORM == 'java'
patterns.map! { |s| Regexp.new(s.gsub("/", File::SEPARATOR)) }
@exclusion_patterns = [Regexp.union(RSpec::CallerFilter::IGNORE_REGEX, *patterns)]
@inclusion_patterns = []
return unless matches?(@exclusion_patterns, File.join(Dir.getwd, "lib", "foo.rb:13"))
inclusion_patterns << Regexp.new(Dir.getwd)
end
attr_writer :full_backtrace
def full_backtrace?
@full_backtrace || exclusion_patterns.empty?
end
def filter_gem(gem_name)
sep = File::SEPARATOR
exclusion_patterns << /#{sep}#{gem_name}(-[^#{sep}]+)?#{sep}/
end
def format_backtrace(backtrace, options={})
return [] unless backtrace
return backtrace if options[:full_backtrace] || backtrace.empty?
backtrace.map { |l| backtrace_line(l) }.compact.
tap do |filtered|
if filtered.empty?
filtered.concat backtrace
filtered << ""
filtered << " Showing full backtrace because every line was filtered out."
filtered << " See docs for RSpec::Configuration#backtrace_exclusion_patterns and"
filtered << " RSpec::Configuration#backtrace_inclusion_patterns for more information."
end
end
end
def backtrace_line(line)
Metadata.relative_path(line) unless exclude?(line)
end
def exclude?(line)
return false if @full_backtrace
matches?(exclusion_patterns, line) && !matches?(inclusion_patterns, line)
end
private
def matches?(patterns, line)
patterns.any? { |p| line =~ p }
end
end
end
end