diff options
Diffstat (limited to 'lib/gitlab/inline_diff.rb')
| -rw-r--r-- | lib/gitlab/inline_diff.rb | 87 |
1 files changed, 55 insertions, 32 deletions
diff --git a/lib/gitlab/inline_diff.rb b/lib/gitlab/inline_diff.rb index 99e7b529ba9..44507bde25d 100644 --- a/lib/gitlab/inline_diff.rb +++ b/lib/gitlab/inline_diff.rb @@ -11,48 +11,71 @@ module Gitlab indexes.each do |index| first_line = diff_arr[index+1] second_line = diff_arr[index+2] - max_length = [first_line.size, second_line.size].max # Skip inline diff if empty line was replaced with content next if first_line == "-\n" - first_the_same_symbols = 0 - (0..max_length + 1).each do |i| - first_the_same_symbols = i - 1 - if first_line[i] != second_line[i] && i > 0 - break - end - end + first_token = find_first_token(first_line, second_line) + apply_first_token(diff_arr, index, first_token) + + last_token = find_last_token(first_line, second_line, first_token) + apply_last_token(diff_arr, index, last_token) + end + + diff_arr + end + + def apply_first_token(diff_arr, index, first_token) + start = first_token + START + + if first_token.empty? + # In case if we remove string of spaces in commit + diff_arr[index+1].sub!("-", "-" => "-#{START}") + diff_arr[index+2].sub!("+", "+" => "+#{START}") + else + diff_arr[index+1].sub!(first_token, first_token => start) + diff_arr[index+2].sub!(first_token, first_token => start) + end + end - first_token = first_line[0..first_the_same_symbols][1..-1] - start = first_token + START + def apply_last_token(diff_arr, index, last_token) + # This is tricky: escape backslashes so that `sub` doesn't interpret them + # as backreferences. Regexp.escape does NOT do the right thing. + replace_token = FINISH + last_token.gsub(/\\/, '\&\&') + diff_arr[index+1].sub!(/#{Regexp.escape(last_token)}$/, replace_token) + diff_arr[index+2].sub!(/#{Regexp.escape(last_token)}$/, replace_token) + end + + def find_first_token(first_line, second_line) + max_length = [first_line.size, second_line.size].max + first_the_same_symbols = 0 + + (0..max_length + 1).each do |i| + first_the_same_symbols = i - 1 - if first_token.empty? - # In case if we remove string of spaces in commit - diff_arr[index+1].sub!("-", "-" => "-#{START}") - diff_arr[index+2].sub!("+", "+" => "+#{START}") - else - diff_arr[index+1].sub!(first_token, first_token => start) - diff_arr[index+2].sub!(first_token, first_token => start) + if first_line[i] != second_line[i] && i > 0 + break end + end + + first_line[0..first_the_same_symbols][1..-1] + end + + def find_last_token(first_line, second_line, first_token) + max_length = [first_line.size, second_line.size].max + last_the_same_symbols = 0 + + (1..max_length + 1).each do |i| + last_the_same_symbols = -i + shortest_line = second_line.size > first_line.size ? first_line : second_line - last_the_same_symbols = 0 - (1..max_length + 1).each do |i| - last_the_same_symbols = -i - shortest_line = second_line.size > first_line.size ? first_line : second_line - if ( first_line[-i] != second_line[-i] ) || "#{first_token}#{START}".size == shortest_line[1..-i].size - break - end + if (first_line[-i] != second_line[-i]) || "#{first_token}#{START}".size == shortest_line[1..-i].size + break end - last_the_same_symbols += 1 - last_token = first_line[last_the_same_symbols..-1] - # This is tricky: escape backslashes so that `sub` doesn't interpret them - # as backreferences. Regexp.escape does NOT do the right thing. - replace_token = FINISH + last_token.gsub(/\\/, '\&\&') - diff_arr[index+1].sub!(/#{Regexp.escape(last_token)}$/, replace_token) - diff_arr[index+2].sub!(/#{Regexp.escape(last_token)}$/, replace_token) end - diff_arr + + last_the_same_symbols += 1 + first_line[last_the_same_symbols..-1] end def _indexes_of_changed_lines(diff_arr) |