176 lines
4.2 KiB
Ruby
176 lines
4.2 KiB
Ruby
# frozen_string_literal: true
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# Defines a specific location, identified by paths line numbers and image coordinates,
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# within a specific diff, identified by start, head and base commit ids.
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module Gitlab
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module Diff
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class Position
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attr_accessor :formatter
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delegate :old_path,
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:new_path,
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:base_sha,
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:start_sha,
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:head_sha,
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:old_line,
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:new_line,
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:width,
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:height,
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:x,
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:y,
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:position_type, to: :formatter
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# A position can belong to a text line or to an image coordinate
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# it depends of the position_type argument.
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# Text position will have: new_line and old_line
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# Image position will have: width, height, x, y
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def initialize(attrs = {})
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@formatter = get_formatter_class(attrs[:position_type]).new(attrs)
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end
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# `Gitlab::Diff::Position` objects are stored as serialized attributes in
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# `DiffNote`, which use YAML to encode and decode objects.
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# `#init_with` and `#encode_with` can be used to customize the en/decoding
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# behavior. In this case, we override these to prevent memoized instance
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# variables like `@diff_file` and `@diff_line` from being serialized.
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def init_with(coder)
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initialize(coder['attributes'])
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self
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end
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def encode_with(coder)
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coder['attributes'] = formatter.to_h
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end
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def key
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formatter.key
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end
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def ==(other)
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other.is_a?(self.class) &&
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other.diff_refs == diff_refs &&
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other.old_path == old_path &&
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other.new_path == new_path &&
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other.formatter == formatter
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end
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def to_h
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formatter.to_h
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end
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def inspect
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%(#<#{self.class}:#{object_id} #{to_h}>)
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end
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def complete?
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file_path.present? && formatter.complete? && diff_refs.complete?
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end
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def to_json(opts = nil)
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JSON.generate(formatter.to_h, opts)
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end
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def as_json(opts = nil)
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to_h.as_json(opts)
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end
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def type
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formatter.line_age
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end
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def unchanged?
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type.nil?
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end
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def added?
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type == 'new'
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end
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def removed?
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type == 'old'
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end
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def paths
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[old_path, new_path].compact.uniq
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end
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def file_path
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new_path.presence || old_path
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end
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def diff_refs
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@diff_refs ||= DiffRefs.new(base_sha: base_sha, start_sha: start_sha, head_sha: head_sha)
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end
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def unfolded_diff?(repository)
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diff_file(repository)&.unfolded?
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end
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def diff_file(repository)
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return @diff_file if defined?(@diff_file)
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@diff_file = begin
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key = {
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project_id: repository.project.id,
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start_sha: start_sha,
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head_sha: head_sha,
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path: file_path
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}
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Gitlab::SafeRequestStore.fetch(key) { find_diff_file(repository) }
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end
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end
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def diff_options
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{ paths: paths, expanded: true, include_stats: false }
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end
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def diff_line(repository)
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@diff_line ||= diff_file(repository)&.line_for_position(self)
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end
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def line_code(repository)
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@line_code ||= diff_file(repository)&.line_code_for_position(self)
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end
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def file_hash
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@file_hash ||= Digest::SHA1.hexdigest(file_path)
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end
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def on_image?
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position_type == 'image'
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end
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def on_text?
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position_type == 'text'
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end
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private
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def find_diff_file(repository)
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return unless diff_refs.complete?
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return unless comparison = diff_refs.compare_in(repository.project)
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file = comparison.diffs(diff_options).diff_files.first
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# We need to unfold diff lines according to the position in order
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# to correctly calculate the line code and trace position changes.
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file&.unfold_diff_lines(self)
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file
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end
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def get_formatter_class(type)
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type ||= "text"
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case type
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when 'image'
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Gitlab::Diff::Formatters::ImageFormatter
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else
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Gitlab::Diff::Formatters::TextFormatter
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end
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end
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end
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end
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end
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