class AstroboaCLI::Util::TemplateError

This code is from Sprinkle that in turn got it from Chef !!

Constants

SOURCE_CONTEXT_WINDOW

Attributes

context[R]
original_exception[R]

Public Class Methods

new(original_exception, template, context) click to toggle source
# File lib/astroboa-cli/util.rb, line 16
def initialize(original_exception, template, context)
  @original_exception, @template, @context = original_exception, template, context
end

Public Instance Methods

line_number() click to toggle source
# File lib/astroboa-cli/util.rb, line 24
def line_number
  @line_number ||= $1.to_i if original_exception.backtrace.find {|line| line =~ /\(erubis\):(\d+)/ }
end
message() click to toggle source
# File lib/astroboa-cli/util.rb, line 20
def message
  @original_exception.message
end
source_listing() click to toggle source
# File lib/astroboa-cli/util.rb, line 32
def source_listing
  return nil if line_number.nil?

  @source_listing ||= begin
    line_index = line_number - 1
    beginning_line = line_index <= SOURCE_CONTEXT_WINDOW ? 0 : line_index - SOURCE_CONTEXT_WINDOW
    source_size = SOURCE_CONTEXT_WINDOW * 2 + 1
    lines = @template.split(/\n/)
    contextual_lines = lines[beginning_line, source_size]
    output = []
    contextual_lines.each_with_index do |line, index|
      line_number = (index+beginning_line+1).to_s.rjust(3)
      output << "#{line_number}: #{line}"
    end
    output.join("\n")
  end
end
source_location() click to toggle source
# File lib/astroboa-cli/util.rb, line 28
def source_location
  "on line ##{line_number}"
end
to_s() click to toggle source
# File lib/astroboa-cli/util.rb, line 50
def to_s
  "\n\n#{self.class} (#{message}) #{source_location}:\n\n" +
    "#{source_listing}\n\n  #{original_exception.backtrace.join("\n  ")}\n\n"
end