Class: Ducalis::Patch

Inherits:
Object
  • Object
show all
Defined in:
lib/ducalis/patch.rb

Constant Summary collapse

RANGE_LINE = 
/^@@ .+\+(?<line_number>\d+),/.freeze
MODIFIED_LINE = 
/^\+(?!\+|\+)/.freeze
NOT_REMOVED_LINE = 
/^[^-]/.freeze
ANY_LINE = 
/.*/.freeze
DIFF_LINES = 
{
  RANGE_LINE => lambda do |lines, _line_number, line, _position|
    [lines, line.match(RANGE_LINE)[:line_number].to_i]
  end,
  MODIFIED_LINE => lambda do |lines, line_number, line, position|
    [lines + [Line.new(line_number, line, position)], line_number + 1]
  end,
  NOT_REMOVED_LINE => lambda do |lines, line_number, _line, _position|
    [lines, line_number + 1]
  end,
  ANY_LINE => lambda do |lines, line_number, _line, _position|
    [lines, line_number]
  end
}.freeze

Instance Method Summary collapse

Constructor Details

#initialize(patch) ⇒ Patch

Returns a new instance of Patch.



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# File 'lib/ducalis/patch.rb', line 25

def initialize(patch)
  diff_only = patch[patch.match(RANGE_LINE).begin(0)..-1]
  @patch_lines = diff_only.lines.to_enum.with_index
end

Instance Method Details

#line_for(line_number) ⇒ Object 



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# File 'lib/ducalis/patch.rb', line 30

def line_for(line_number)
  changed_lines.detect do |line|
    line.number == line_number
  end || UnchangedLine.new
end