Module: Git::Parsers::Diff::Patch Private

Defined in:
lib/git/parsers/diff.rb

Overview

This module is part of a private API. You should avoid using this module if possible, as it may be removed or be changed in the future.

Parser for --patch output (combined with numstat)

Defined Under Namespace

Modules: PatchMetadataParser Classes: PatchFileParser

Constant Summary collapse

DIFF_HEADER_PATTERN =

This constant is part of a private API. You should avoid using this constant if possible, as it may be removed or be changed in the future. 

%r{\Adiff --git ("?)a/(.+?)\1 ("?)b/(.+?)\3\z}
INDEX_PATTERN =

This constant is part of a private API. You should avoid using this constant if possible, as it may be removed or be changed in the future. 

/^index ([0-9a-f]{4,40})\.\.([0-9a-f]{4,40})( ......)?/
FILE_MODE_PATTERN =

This constant is part of a private API. You should avoid using this constant if possible, as it may be removed or be changed in the future. 

/^(new|deleted) file mode (......)/
OLD_MODE_PATTERN =

This constant is part of a private API. You should avoid using this constant if possible, as it may be removed or be changed in the future. 

/^old mode (......)/
NEW_MODE_PATTERN =

This constant is part of a private API. You should avoid using this constant if possible, as it may be removed or be changed in the future. 

/^new mode (......)/
BINARY_PATTERN =

This constant is part of a private API. You should avoid using this constant if possible, as it may be removed or be changed in the future. 

/^Binary files /
GIT_BINARY_PATCH_PATTERN =

This constant is part of a private API. You should avoid using this constant if possible, as it may be removed or be changed in the future. 

/^GIT binary patch$/
RENAME_FROM_PATTERN =

This constant is part of a private API. You should avoid using this constant if possible, as it may be removed or be changed in the future. 

/^rename from (.+)$/
RENAME_TO_PATTERN =

This constant is part of a private API. You should avoid using this constant if possible, as it may be removed or be changed in the future. 

/^rename to (.+)$/
COPY_FROM_PATTERN =

This constant is part of a private API. You should avoid using this constant if possible, as it may be removed or be changed in the future. 

/^copy from (.+)$/
COPY_TO_PATTERN =

This constant is part of a private API. You should avoid using this constant if possible, as it may be removed or be changed in the future. 

/^copy to (.+)$/
SIMILARITY_PATTERN =

This constant is part of a private API. You should avoid using this constant if possible, as it may be removed or be changed in the future. 

/^similarity index (\d+)%$/
PATCH_STATUS_MAP =

This constant is part of a private API. You should avoid using this constant if possible, as it may be removed or be changed in the future. 

{
  'new' => :added,
  'deleted' => :deleted,
  'modified' => :modified,
  'renamed' => :renamed,
  'copied' => :copied,
  'type_changed' => :type_changed
}.freeze

Class Method Summary collapse

Class Method Details

.parse(output, include_dirstat: false) ⇒ Git::DiffResult

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Parse combined patch + numstat + shortstat output into DiffResult

Parameters:

  • output (String) —

    combined output

  • include_dirstat (Boolean) (defaults to: false) —

    whether dirstat output is expected

Returns:



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# File 'lib/git/parsers/diff.rb', line 380

def parse(output, include_dirstat: false)
  return Diff.empty_result if output.empty?

  numstat_lines, shortstat_line, dirstat_lines, patch_text = split_sections(output, include_dirstat)
  numstat_map = Numstat.parse_as_map(numstat_lines)

  Diff.build_result(
    files: PatchFileParser.new(patch_text, numstat_map).parse,
    shortstat: Diff.parse_shortstat(shortstat_line),
    dirstat: include_dirstat ? Diff.parse_dirstat(dirstat_lines) : nil
  )
end

.split_pre_diff(pre_diff_lines, include_dirstat, patch_text)

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/git/parsers/diff.rb', line 407

def split_pre_diff(pre_diff_lines, include_dirstat, patch_text)
  shortstat_index = pre_diff_lines.index { |l| l.match?(/^\s*\d+\s+files?\s+changed/) }
  return [pre_diff_lines, nil, [], patch_text] unless shortstat_index

  [pre_diff_lines[0...shortstat_index], pre_diff_lines[shortstat_index],
   include_dirstat ? pre_diff_lines[(shortstat_index + 1)..] : [], patch_text]
end

.split_sections(output, include_dirstat) ⇒ Array<Array<String>, String|nil, Array<String>, String>

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Split output into numstat, shortstat, dirstat, and patch sections

Parameters:

  • output (String) —

    combined output

  • include_dirstat (Boolean) —

    whether to expect dirstat section

Returns:

  • (Array<Array<String>, String|nil, Array<String>, String>) 


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# File 'lib/git/parsers/diff.rb', line 399

def split_sections(output, include_dirstat)
  lines = output.lines
  first_diff_index = lines.index { |l| l.start_with?('diff --git') } || lines.length
  pre_diff_lines = lines[0...first_diff_index].map(&:chomp).reject(&:empty?)
  patch_text = lines[first_diff_index..].join
  split_pre_diff(pre_diff_lines, include_dirstat, patch_text)
end