Class: Kubes::Compiler::Strategy::Erb::YamlError

Inherits:
Object
  • Object
show all
Includes:
Util::SaveFile
Defined in:
lib/kubes/compiler/strategy/erb/yaml_error.rb

Instance Method Summary collapse

Methods included from Util::SaveFile

#save_file

Constructor Details

#initialize(path, rendered_yaml) ⇒ YamlError

Returns a new instance of YamlError.



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# File 'lib/kubes/compiler/strategy/erb/yaml_error.rb', line 5

def initialize(path, rendered_yaml)
  @path, @rendered_yaml = path, rendered_yaml
end

Instance Method Details

#dest ⇒ Object 



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# File 'lib/kubes/compiler/strategy/erb/yaml_error.rb', line 15

def dest
  save_file = save_file(@path)
  "#{Kubes.root}/.kubes/output/#{save_file}"
end

#handle_yaml_syntax_error(e, path) ⇒ Object 



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# File 'lib/kubes/compiler/strategy/erb/yaml_error.rb', line 29

def handle_yaml_syntax_error(e, path)
  io = StringIO.new
  io.puts "Invalid yaml. Output written for debugging: #{path}".color(:red)
  io.puts "ERROR: #{e.message}".color(:red)

  # Grab line info.  Example error:
  #   ERROR: (<unknown>): could not find expected ':' while scanning a simple key at line 2 column 1
  md = e.message.match(/at line (\d+) column (\d+)/)
  line = md[1].to_i

  lines = IO.read(path).split("\n")
  context = 5 # lines of context
  top, bottom = [line-context-1, 0].max, line+context-1
  spacing = lines.size.to_s.size
  lines[top..bottom].each_with_index do |line_content, index|
    line_number = top+index+1
    if line_number == line
      io.printf("%#{spacing}d %s\n".color(:red), line_number, line_content)
    else
      io.printf("%#{spacing}d %s\n", line_number, line_content)
    end
  end

  if ENV['KUBES_TEST']
    io.string
  else
    puts io.string
    exit 1
  end
end

#show ⇒ Object 



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# File 'lib/kubes/compiler/strategy/erb/yaml_error.rb', line 9

def show
  FileUtils.mkdir_p(File.dirname(dest))
  IO.write(dest, @rendered_yaml)
  show_error(dest)
end

#show_error(path) ⇒ Object 



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# File 'lib/kubes/compiler/strategy/erb/yaml_error.rb', line 20

def show_error(path)
  text = IO.read(path)
  begin
    YAML.load(text)
  rescue Psych::SyntaxError => e
    handle_yaml_syntax_error(e, path)
  end
end