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# A note on merge request or commit diffs
#
# A note of this type can be resolvable.
class DiffNote < Note
include NoteOnDiff
NOTEABLE_TYPES = %w(MergeRequest Commit).freeze
serialize :original_position, Gitlab::Diff::Position # rubocop:disable Cop/ActiveRecordSerialize
serialize :position, Gitlab::Diff::Position # rubocop:disable Cop/ActiveRecordSerialize
serialize :change_position, Gitlab::Diff::Position # rubocop:disable Cop/ActiveRecordSerialize
validates :original_position, presence: true
validates :position, presence: true
validates :diff_line, presence: true
validates :line_code, presence: true, line_code: true
validates :noteable_type, inclusion: { in: NOTEABLE_TYPES }
validate :positions_complete
validate :verify_supported
before_validation :set_original_position, :update_position, on: :create
before_validation :set_line_code
after_save :keep_around_commits
def discussion_class(*)
DiffDiscussion
end
%i(original_position position change_position).each do |meth|
define_method "#{meth}=" do |new_position|
if new_position.is_a?(String)
new_position = JSON.parse(new_position) rescue nil
end
if new_position.is_a?(Hash)
new_position = new_position.with_indifferent_access
new_position = Gitlab::Diff::Position.new(new_position)
end
return if new_position == read_attribute(meth)
super(new_position)
end
end
def diff_file
@diff_file ||= self.original_position.diff_file(self.project.repository)
end
def diff_line
@diff_line ||= diff_file&.line_for_position(self.original_position)
end
def for_line?(line)
diff_file.position(line) == self.original_position
end
def original_line_code
self.diff_file.line_code(self.diff_line)
end
def active?(diff_refs = nil)
return false unless supported?
return true if for_commit?
diff_refs ||= noteable.diff_refs
self.position.diff_refs == diff_refs
end
def created_at_diff?(diff_refs)
return false unless supported?
return true if for_commit?
self.original_position.diff_refs == diff_refs
end
private
def supported?
for_commit? || self.noteable.has_complete_diff_refs?
end
def set_original_position
self.original_position = self.position.dup unless self.original_position&.complete?
end
def set_line_code
self.line_code = self.position.line_code(self.project.repository)
end
def update_position
return unless supported?
return if for_commit?
return if active?
tracer = Gitlab::Diff::PositionTracer.new(
project: self.project,
old_diff_refs: self.position.diff_refs,
new_diff_refs: self.noteable.diff_refs,
paths: self.position.paths
)
result = tracer.trace(self.position)
return unless result
if result[:outdated]
self.change_position = result[:position]
else
self.position = result[:position]
end
end
def verify_supported
return if supported?
errors.add(:noteable, "doesn't support new-style diff notes")
end
def positions_complete
return if self.original_position.complete? && self.position.complete?
errors.add(:position, "is invalid")
end
def keep_around_commits
project.repository.keep_around(self.original_position.base_sha)
project.repository.keep_around(self.original_position.start_sha)
project.repository.keep_around(self.original_position.head_sha)
if self.position != self.original_position
project.repository.keep_around(self.position.base_sha)
project.repository.keep_around(self.position.start_sha)
project.repository.keep_around(self.position.head_sha)
end
end
end
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