Class: Lono::Yamler::Validator
- Inherits:
-
Object
- Object
- Lono::Yamler::Validator
- Defined in:
- lib/lono/yamler/validator.rb
Instance Method Summary collapse
- #handle_yaml_syntax_error(e, path) ⇒ Object
-
#initialize(path) ⇒ Validator
constructor
A new instance of Validator.
- #validate! ⇒ Object
- #validate_yaml(path) ⇒ Object
Constructor Details
#initialize(path) ⇒ Validator
Returns a new instance of Validator.
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# File 'lib/lono/yamler/validator.rb', line 3 def initialize(path) @path = path end |
Instance Method Details
#handle_yaml_syntax_error(e, path) ⇒ Object
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# File 'lib/lono/yamler/validator.rb', line 20 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.}".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..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['LONO_TEST'] io.string else puts io.string exit 1 end end |
#validate! ⇒ Object
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# File 'lib/lono/yamler/validator.rb', line 7 def validate! validate_yaml(@path) end |
#validate_yaml(path) ⇒ Object
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# File 'lib/lono/yamler/validator.rb', line 11 def validate_yaml(path) text = IO.read(path) begin YAML.load(text) rescue Psych::SyntaxError => e handle_yaml_syntax_error(e, path) end end |