Class: PrettyDiff::Diff

Inherits:
Object
  • Object
show all
Defined in:
lib/pretty_diff/diff.rb

Constant Summary collapse

CHUNK_REGEXP = 
/^@@ .+? @@.*\n?$/

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(unified_diff, options = {}) ⇒ Diff

Create new Diff object. Accept a String in unified diff format and options hash. Currrent options:

  • generator – your own custom implementation of HTML generator. Will use BasicGenerator by default.

  • out_encoding – convert encoding of diffs to the specififed encoding. utf-8 by default.



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# File 'lib/pretty_diff/diff.rb', line 25

def initialize(unified_diff, options={})
  @unified_diff = unified_diff
  @generator = validate_generator(options[:generator] || BasicGenerator)
  @out_encoding = options[:out_encoding] || 'utf-8'
  @options = options
end

Instance Attribute Details

#generator ⇒ Object (readonly)

Returns the value of attribute generator.



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# File 'lib/pretty_diff/diff.rb', line 16

def generator
  @generator
end

#options ⇒ Object (readonly)

Returns the value of attribute options.



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# File 'lib/pretty_diff/diff.rb', line 16

def options
  @options
end

#out_encoding ⇒ Object (readonly)

Returns the value of attribute out_encoding.



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# File 'lib/pretty_diff/diff.rb', line 16

def out_encoding
  @out_encoding
end

#unified_diff ⇒ Object (readonly)

Returns the value of attribute unified_diff.



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# File 'lib/pretty_diff/diff.rb', line 16

def unified_diff
  @unified_diff
end

Instance Method Details

#chunks ⇒ Object 



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# File 'lib/pretty_diff/diff.rb', line 54

def chunks
  @_chunks ||= find_chunks
end

#contents ⇒ Object 



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# File 'lib/pretty_diff/diff.rb', line 43

def contents
  # We have to strip metadata from the rest of the diff
  # to enforce encoding. It's not uncommon for metadata to be in Unicode
  # while the diff itself is in some other encoding.
  @_contents ||= enforce_encoding(unified_diff.lines[metadata.lines.size..-1].join(''))
end

#metadata ⇒ Object 



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# File 'lib/pretty_diff/diff.rb', line 32

def metadata
  @_metadata ||= begin
    ''.tap do |result|
      unified_diff.each_line do |l|
        result << l
        break if l =~ /\+\+\+\s*/
      end
    end
  end
end

#to_html ⇒ Object 



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# File 'lib/pretty_diff/diff.rb', line 50

def to_html
  generator.new(self).generate
end