Class: PatienceDiff::Html::Formatter

Inherits:
Formatter
  • Object
show all
Defined in:
lib/patience_diff/html/formatter.rb

Overview

Produces a fancy HTML-formatted unified diff. All your friends will be jealous.

Instance Attribute Summary

Attributes inherited from Formatter

#left_name, #left_timestamp, #names, #right_name, #right_timestamp, #title

Instance Method Summary collapse

Methods inherited from Formatter

#render_hunk_marker

Constructor Details

#initialize(*args) ⇒ Formatter

Returns a new instance of Formatter.



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# File 'lib/patience_diff/html/formatter.rb', line 13

def initialize(*args)
  super(*args)
  @erbs = Hash.new do |hash, key|
    hash[key] = Erubis::Eruby.new(File.read(key))
  end
  @hunk_count = 0
end

Instance Method Details

#format {|context| ... } ⇒ Object

Yields:

  • (context) 


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# File 'lib/patience_diff/html/formatter.rb', line 21

def format
  context = FormattingContext.new(@differ, self)
  yield context
  template.evaluate(context)
end

#render_header(*args) ⇒ Object 



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# File 'lib/patience_diff/html/formatter.rb', line 27

def render_header(*args)
  left_header, right_header = *super(*args)
  helper = HeaderHelper.new(left_header, right_header, @names.count - 1)
  template("html_header.erb").evaluate(helper)
end

#render_hunk(a, b, opcodes, last_hunk_end) ⇒ Object 



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# File 'lib/patience_diff/html/formatter.rb', line 33

def render_hunk(a, b, opcodes, last_hunk_end)
  helper = hunk_context(a, b, render_hunk_marker(opcodes), opcodes, last_hunk_end)
  template("html_hunk.erb").evaluate(helper)
end

#render_orphan(sequence, name, timestamp) ⇒ Object

Render a single file as if it were a diff with no changes & full context



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# File 'lib/patience_diff/html/formatter.rb', line 39

def render_orphan(sequence, name, timestamp)
  @names << name
  left_header = "--- New file"
  right_header = right_header_line(name, timestamp)
  helper = HeaderHelper.new(left_header, right_header, @names.count - 1)
  result = template("html_header.erb").evaluate(helper)
  
  # create one opcode with the entire content
  opcodes = [
    [:equal, 0, sequence.length-1, 0, sequence.length-1]
  ]
  helper = hunk_context(sequence, sequence, nil, opcodes, 0)
  result << template("html_hunk.erb").evaluate(helper)
  result
end