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# Contains functionality shared between `DiffDiscussion` and `LegacyDiffDiscussion`.
module DiscussionOnDiff
extend ActiveSupport::Concern
NUMBER_OF_TRUNCATED_DIFF_LINES = 16
included do
delegate :line_code,
:original_line_code,
:diff_file,
:diff_line,
:for_line?,
:active?,
:created_at_diff?,
to: :first_note
delegate :file_path,
:blob,
:highlighted_diff_lines,
:diff_lines,
to: :diff_file,
allow_nil: true
end
def diff_discussion?
true
end
def file_new_path
first_note.position.new_path
end
def on_merge_request_commit?
for_merge_request? && commit_id.present?
end
# Returns an array of at most 16 highlighted lines above a diff note
def truncated_diff_lines(highlight: true)
lines = highlight ? highlighted_diff_lines : diff_lines
prev_lines = []
lines.each do |line|
if line.meta?
prev_lines.clear
else
prev_lines << line
break if for_line?(line)
prev_lines.shift if prev_lines.length >= NUMBER_OF_TRUNCATED_DIFF_LINES
end
end
prev_lines
end
def line_code_in_diffs(diff_refs)
if active?(diff_refs)
line_code
elsif diff_refs && created_at_diff?(diff_refs)
original_line_code
end
end
end
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