Class: Console::Terminal::Formatter::Failure

Inherits:
Object
  • Object
show all
Defined in:
lib/console/terminal/formatter/failure.rb

Overview

Format a failure event, including the exception message and backtrace.

Constant Summary collapse

KEY =

The key used to identify this formatter.

:failure

Instance Method Summary collapse

Constructor Details

#initialize(terminal) ⇒ Failure

Create a new failure formatter.

Parameters:



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# File 'lib/console/terminal/formatter/failure.rb', line 17

def initialize(terminal)
	@terminal = terminal
	
	@terminal[:exception_title] ||= @terminal.style(:red, nil, :bold)
	@terminal[:exception_detail] ||= @terminal.style(:yellow)
	@terminal[:exception_backtrace] ||= @terminal.style(:red)
	@terminal[:exception_backtrace_other] ||= @terminal.style(:red, nil, :faint)
	@terminal[:exception_message] ||= @terminal.style(:default)
end

Instance Method Details

#format(event, stream, prefix: nil, verbose: false, **options) ⇒ Object

Format the given event.



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# File 'lib/console/terminal/formatter/failure.rb', line 34

def format(event, stream, prefix: nil, verbose: false, **options)
	title = event[:class]
	message = event[:message]
	backtrace = event[:backtrace]
	root = event[:root]
	
	lines = message.lines.map(&:chomp)
	
	stream.puts "  #{prefix}#{@terminal[:exception_title]}#{title}#{@terminal.reset}: #{lines.shift}"
	
	lines.each do |line|
		stream.puts "  #{@terminal[:exception_detail]}#{line}#{@terminal.reset}"
	end
	
	root_pattern = /^#{root}\// if root
	
	backtrace&.each_with_index do |line, index|
		path, offset, message = line.split(":", 3)
		style = :exception_backtrace
		
		# Make the path a bit more readable:
		if root_pattern and path.sub!(root_pattern, "").nil?
			style = :exception_backtrace_other
		end
		
		stream.puts "  #{index == 0 ? "→" : " "} #{@terminal[style]}#{path}:#{offset}#{@terminal[:exception_message]} #{message}#{@terminal.reset}"
	end
	
	if cause = event[:cause]
		format(cause, stream, prefix: "Caused by ", verbose: verbose, **options)
	end
end