summaryrefslogtreecommitdiff
path: root/app/models/diff_note.rb
blob: 4442cefc7e955c255c921e8ecd02afa7a33e6ab3 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
class DiffNote < Note
  include NoteOnDiff

  serialize :original_position, Gitlab::Diff::Position
  serialize :position, Gitlab::Diff::Position

  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: ['Commit', 'MergeRequest'] }
  validates :resolved_by, presence: true, if: :resolved?
  validate :positions_complete
  validate :verify_supported

  after_initialize :ensure_original_discussion_id
  before_validation :set_original_position, :update_position, on: :create
  before_validation :set_line_code, :set_original_discussion_id
  # We need to do this again, because it's already in `Note`, but is affected by
  # `update_position` and needs to run after that.
  before_validation :set_discussion_id
  after_save :keep_around_commits

  class << self
    def build_discussion_id(noteable_type, noteable_id, position)
      [super(noteable_type, noteable_id), *position.key].join("-")
    end
  end

  def new_diff_note?
    true
  end

  def diff_attributes
    { position: position.to_json }
  end

  def position=(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

    super(new_position)
  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) if diff_file
  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 resolvable?
    !system? && for_merge_request?
  end

  def resolved?
    return false unless resolvable?

    self.resolved_at.present?
  end

  def resolve!(current_user)
    return unless resolvable?
    return if resolved?

    self.resolved_at = Time.now
    self.resolved_by = current_user
    save!
  end

  def unresolve!
    return unless resolvable?
    return unless resolved?

    self.resolved_at = nil
    self.resolved_by = nil
    save!
  end

  def discussion
    return unless resolvable?

    self.noteable.find_diff_discussion(self.discussion_id)
  end

  private

  def supported?
    for_commit? || self.noteable.has_complete_diff_refs?
  end

  def noteable_diff_refs
    if noteable.respond_to?(:diff_sha_refs)
      noteable.diff_sha_refs
    else
      noteable.diff_refs
    end
  end

  def set_original_position
    self.original_position = self.position.dup
  end

  def set_line_code
    self.line_code = self.position.line_code(self.project.repository)
  end

  def ensure_original_discussion_id
    return unless self.persisted?
    return if self.original_discussion_id

    set_original_discussion_id
    update_column(:original_discussion_id, self.original_discussion_id)
  end

  def set_original_discussion_id
    self.original_discussion_id = Digest::SHA1.hexdigest(build_original_discussion_id)
  end

  def build_discussion_id
    self.class.build_discussion_id(noteable_type, noteable_id || commit_id, position)
  end

  def build_original_discussion_id
    self.class.build_discussion_id(noteable_type, noteable_id || commit_id, original_position)
  end

  def update_position
    return unless supported?
    return if for_commit?

    return if active?

    Notes::DiffPositionUpdateService.new(
      self.project,
      nil,
      old_diff_refs: self.position.diff_refs,
      new_diff_refs: noteable_diff_refs,
      paths: self.position.paths
    ).execute(self)
  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