debian-mirror-gitlab/app/models/concerns/discussion_on_diff.rb

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# frozen_string_literal: true
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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,
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:note_diff_file,
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:diff_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
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def file_new_path
first_note.position.new_path
end
def on_merge_request_commit?
for_merge_request? && commit_id.present?
end
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# Returns an array of at most 16 highlighted lines above a diff note
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def truncated_diff_lines(highlight: true, diff_limit: nil)
return [] unless on_text?
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return [] if diff_line.nil?
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diff_limit = [diff_limit, NUMBER_OF_TRUNCATED_DIFF_LINES].compact.min
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lines = highlight ? highlighted_diff_lines : diff_lines
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initial_line_index = [diff_line.index - diff_limit + 1, 0].max
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prev_lines = []
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lines[initial_line_index..diff_line.index].each do |line|
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if line.meta?
prev_lines.clear
else
prev_lines << line
end
end
prev_lines
end
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def diff_file
strong_memoize(:diff_file) do
# Falling back here is important as `note_diff_files` are created async.
fetch_preloaded_diff_file || first_note.diff_file
end
end
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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
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private
def fetch_preloaded_diff_file
fetch_preloaded_diff =
context_noteable &&
context_noteable.preloads_discussion_diff_highlighting? &&
note_diff_file
context_noteable.discussions_diffs.find_by_id(note_diff_file.id) if fetch_preloaded_diff
end
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end