Class: Giff::Diff

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

Instance Method Summary collapse

Constructor Details

#initialize(file_a, file_b) ⇒ Diff

Returns a new instance of Diff.



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# File 'lib/giff/diff.rb', line 5

def initialize(file_a, file_b)
  @gem_a = to_file(file_a)
  @gem_b = to_file(file_b)
end

Instance Method Details

#describe ⇒ Object 



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# File 'lib/giff/diff.rb', line 10

def describe
  if files_changed?
    data_a = @gem_a.data.contents
    data_b = @gem_b.data.contents
    keys = (data_a.keys + data_b.keys).sort.uniq
    keys.each do |key|
      if !data_a.key?(key)
        STDERR.puts "#{key} was removed"
      elsif !data_b.key?(key)
        STDERR.puts "#{key} was added"
      elsif data_a[key] != data_b[key]
        STDERR.puts "#{key} was modified"
      end
    end
  elsif metadata_changed?
    STDERR.puts "files equal but metadata changed"
  else
    STDERR.puts "files and metadata equal"
  end
end

#files_changed? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/giff/diff.rb', line 31

def files_changed?
  @gem_a.data.contents != @gem_b.data.contents
end

#metadata_changed? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/giff/diff.rb', line 35

def metadata_changed?
  @gem_a.metadata.contents != @gem_b.metadata.contents
end