gitlab-org--gitlab-foss/lib/gitlab/diff/line.rb

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# frozen_string_literal: true
module Gitlab
module Diff
class Line
# When SERIALIZE_KEYS is updated, to reset the redis cache entries you'll
# need to bump the VERSION constant on Gitlab::Diff::HighlightCache
#
SERIALIZE_KEYS = %i(line_code rich_text text type index old_pos new_pos).freeze
attr_reader :line_code, :type, :old_pos, :new_pos
attr_writer :rich_text
attr_accessor :text, :index
def initialize(text, type, index, old_pos, new_pos, parent_file: nil, line_code: nil, rich_text: nil)
@text, @type, @index = text, type, index
@old_pos, @new_pos = old_pos, new_pos
@parent_file = parent_file
@rich_text = rich_text
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# When line code is not provided from cache store we build it
# using the parent_file(Diff::File or Conflict::File).
@line_code = line_code || calculate_line_code
end
def self.init_from_hash(hash)
new(hash[:text],
hash[:type],
hash[:index],
hash[:old_pos],
hash[:new_pos],
parent_file: hash[:parent_file],
line_code: hash[:line_code],
rich_text: hash[:rich_text])
end
def self.safe_init_from_hash(hash)
line = hash.with_indifferent_access
rich_text = line[:rich_text]
line[:rich_text] = rich_text&.html_safe
init_from_hash(line)
end
def to_hash
hash = {}
SERIALIZE_KEYS.each { |key| hash[key] = send(key) } # rubocop:disable GitlabSecurity/PublicSend
hash
end
def old_line
old_pos unless added? || meta?
end
def new_line
new_pos unless removed? || meta?
end
def line
new_line || old_line
end
def unchanged?
type.nil?
end
def added?
%w[new new-nonewline].include?(type)
end
def removed?
%w[old old-nonewline].include?(type)
end
def meta?
%w[match new-nonewline old-nonewline].include?(type)
end
def match?
type == :match
end
def discussable?
!meta?
end
def suggestible?
!removed?
end
def rich_text
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@parent_file.try(:highlight_lines!) if @parent_file && !@rich_text
@rich_text
end
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def meta_positions
return unless meta?
{
old_pos: old_pos,
new_pos: new_pos
}
end
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# We have to keep this here since it is still used for conflict resolution
# Conflict::File#as_json renders json diff lines in sections
def as_json(opts = nil)
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DiffLineSerializer.new.represent(self)
end
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private
def calculate_line_code
@parent_file&.line_code(self)
end
end
end
end