Class: HelpfulComments::FileWrapper

Inherits:
Object
  • Object
show all
Defined in:
lib/helpful_comments/file_wrapper.rb

Instance Method Summary collapse

Constructor Details

#initialize(file, max_lines) ⇒ FileWrapper

build a new file wrapper



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# File 'lib/helpful_comments/file_wrapper.rb', line 4

def initialize(file, max_lines)
  @file = file
  @lines = Array.new(max_lines, '')
end

Instance Method Details

#trailing?(lines) ⇒ Boolean

true if the last written lines to the file match the given lines

Returns:

  • (Boolean)

Raises:

  • (ArgumentError) 


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# File 'lib/helpful_comments/file_wrapper.rb', line 10

def trailing?(lines)
  raise ArgumentError, 'lines too long' if lines.size > @lines.size
  @lines[(@lines.size - lines.size)..-1] == lines
end

#write(string) ⇒ Object

write the line to the file



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# File 'lib/helpful_comments/file_wrapper.rb', line 16

def write(string)
  @lines.shift
  @lines << string
  @file.write(string)
end