62 lines
1.6 KiB
Ruby
62 lines
1.6 KiB
Ruby
module Gitlab
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module Diff
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class ParallelDiff
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attr_accessor :diff_file
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def initialize(diff_file)
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@diff_file = diff_file
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end
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def parallelize
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i = 0
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free_right_index = nil
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lines = []
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highlighted_diff_lines = diff_file.highlighted_diff_lines
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highlighted_diff_lines.each do |line|
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if line.meta? || line.unchanged?
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# line in the right panel is the same as in the left one
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lines << {
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left: line,
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right: line
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}
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free_right_index = nil
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i += 1
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elsif line.removed?
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lines << {
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left: line,
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right: nil
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}
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# Once we come upon a new line it can be put on the right of this old line
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free_right_index ||= i
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i += 1
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elsif line.added?
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if free_right_index
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# If an old line came before this without a line on the right, this
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# line can be put to the right of it.
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lines[free_right_index][:right] = line
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# If there are any other old lines on the left that don't yet have
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# a new counterpart on the right, update the free_right_index
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next_free_right_index = free_right_index + 1
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free_right_index = next_free_right_index < i ? next_free_right_index : nil
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else
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lines << {
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left: nil,
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right: line
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}
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free_right_index = nil
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i += 1
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end
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end
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end
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lines
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end
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end
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end
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end
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