Class: Chef::Formatters::ErrorInspectors::ResourceFailureInspector

Inherits:
Object
  • Object
show all
Defined in:
lib/chef/formatters/error_inspectors/resource_failure_inspector.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(resource, action, exception) ⇒ ResourceFailureInspector

Returns a new instance of ResourceFailureInspector.



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# File 'lib/chef/formatters/error_inspectors/resource_failure_inspector.rb', line 30

def initialize(resource, action, exception)
  @resource = resource
  @action = action
  @exception = exception
end

Instance Attribute Details

#action ⇒ Object (readonly)

Returns the value of attribute action.



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# File 'lib/chef/formatters/error_inspectors/resource_failure_inspector.rb', line 27

def action
  @action
end

#exception ⇒ Object (readonly)

Returns the value of attribute exception.



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# File 'lib/chef/formatters/error_inspectors/resource_failure_inspector.rb', line 28

def exception
  @exception
end

#resource ⇒ Object (readonly)

Returns the value of attribute resource.



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# File 'lib/chef/formatters/error_inspectors/resource_failure_inspector.rb', line 26

def resource
  @resource
end

Instance Method Details

#add_explanation(error_description) ⇒ Object 



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# File 'lib/chef/formatters/error_inspectors/resource_failure_inspector.rb', line 36

def add_explanation(error_description)
  error_description.section(exception.class.name, exception.message)

  unless filtered_bt.empty?
    error_description.section("Cookbook Trace:", filtered_bt.join("\n"))
  end

  unless dynamic_resource?
    error_description.section("Resource Declaration:", resource.sensitive ? "suppressed sensitive resource output" : recipe_snippet)
  end

  error_description.section("Compiled Resource:", (resource.to_text).to_s)

  # Template errors get wrapped in an exception class that can show the relevant template code,
  # so add them to the error output.
  if exception.respond_to?(:source_listing)
    error_description.section("Template Context:", "#{exception.source_location}\n#{exception.source_listing}")
  end

  if ChefUtils.windows?
    require_relative "../../win32/security"

    unless Chef::ReservedNames::Win32::Security.has_admin_privileges?
      error_description.section("Missing Windows Admin Privileges", "#{Chef::Dist::CLIENT} doesn't have administrator privileges. This can be a possible reason for the resource failure.")
    end
  end
end

#dynamic_resource? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/chef/formatters/error_inspectors/resource_failure_inspector.rb', line 99

def dynamic_resource?
  !resource.source_line
end

#filtered_bt ⇒ Object 



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# File 'lib/chef/formatters/error_inspectors/resource_failure_inspector.rb', line 103

def filtered_bt
  filters = Array(Chef::Config.cookbook_path).map { |p| /^#{Regexp.escape(p)}/ }
  exception.backtrace.select { |line| filters.any? { |filter| line =~ filter } }
end

#recipe_snippet ⇒ Object 



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# File 'lib/chef/formatters/error_inspectors/resource_failure_inspector.rb', line 64

def recipe_snippet
  return nil if dynamic_resource?

  @snippet ||= begin
    if (file = parse_source) && (line = parse_line(file))
      return nil unless ::File.exists?(file)

      lines = IO.readlines(file)

      relevant_lines = ["# In #{file}\n\n"]

      current_line = line - 1
      current_line = 0 if current_line < 0
      nesting = 0

      loop do

        # low rent parser. try to gracefully handle nested blocks in resources
        nesting += 1 if lines[current_line] =~ /[\s]+do[\s]*/
        nesting -= 1 if lines[current_line] =~ /end[\s]*$/

        relevant_lines << format_line(current_line, lines[current_line])

        break if lines[current_line + 1].nil?
        break if current_line >= (line + 50)
        break if nesting <= 0

        current_line += 1
      end
      relevant_lines << format_line(current_line + 1, lines[current_line + 1]) if lines[current_line + 1]
      relevant_lines.join("")
    end
  end
end