Class: GitSpelunk::Offset

Inherits:
Object
  • Object
show all
Defined in:
lib/git_spelunk/offset.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(repo, file_name, sha, line_number) ⇒ Offset

Returns a new instance of Offset.



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# File 'lib/git_spelunk/offset.rb', line 41

def initialize(repo, file_name, sha, line_number)
  @repo = repo
  @file_name = file_name
  @sha = sha
  @line_number = line_number
  @parent = @repo.commits(@sha)[0].parents[0]
  true
end

Instance Attribute Details

#chunks ⇒ Object (readonly)

Returns the value of attribute chunks.



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# File 'lib/git_spelunk/offset.rb', line 39

def chunks
  @chunks
end

#file_name ⇒ Object (readonly)

Returns the value of attribute file_name.



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# File 'lib/git_spelunk/offset.rb', line 39

def file_name
  @file_name
end

#repo ⇒ Object (readonly)

Returns the value of attribute repo.



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# File 'lib/git_spelunk/offset.rb', line 39

def repo
  @repo
end

#sha ⇒ Object (readonly)

Returns the value of attribute sha.



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# File 'lib/git_spelunk/offset.rb', line 39

def sha
  @sha
end

Instance Method Details

#at_beginning_of_time? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/git_spelunk/offset.rb', line 54

def at_beginning_of_time?
  @parent.nil?
end

#first_commit_for_file? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/git_spelunk/offset.rb', line 62

def first_commit_for_file?

end

#line_number_to_parent ⇒ Object 



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# File 'lib/git_spelunk/offset.rb', line 66

def line_number_to_parent
  return :at_beginning_of_time unless @parent && chunks
  chunk = target_chunk(@line_number)
  return :unable_to_trace unless chunk

  parent_starting_line, parent_total_lines = parent_start_and_total(stats_line(chunk))
  return :first_commit_for_file if parent_starting_line == 0 && parent_total_lines == 0

  chunk_starting_line, chunk_total_lines = src_start_and_total(stats_line(chunk))
  parent_line_offset = find_parent_line_number(diff_lines(chunk), @line_number, chunk_starting_line, chunk_total_lines)
  parent_starting_line + parent_line_offset
end

#unable_to_trace_lineage? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/git_spelunk/offset.rb', line 58

def unable_to_trace_lineage?
  @parent && (@chunks.nil? || target_chunk.nil?)
end