summaryrefslogtreecommitdiff
path: root/app/helpers/diff_helper.rb
blob: cbe471768315ba77b05a85120c9b39fba3661f8c (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
module DiffHelper
  def mark_inline_diffs(old_line, new_line)
    old_diffs, new_diffs = Gitlab::Diff::InlineDiff.new(old_line, new_line).inline_diffs

    marked_old_line = Gitlab::Diff::InlineDiffMarker.new(old_line).mark(old_diffs, mode: :deletion)
    marked_new_line = Gitlab::Diff::InlineDiffMarker.new(new_line).mark(new_diffs, mode: :addition)

    [marked_old_line, marked_new_line]
  end

  def diff_view
    diff_views = %w(inline parallel)

    if diff_views.include?(cookies[:diff_view])
      cookies[:diff_view]
    else
      diff_views.first
    end
  end

  def diff_hard_limit_enabled?
    params[:force_show_diff].present?
  end

  def diff_options
    options = { ignore_whitespace_change: hide_whitespace? }
    if diff_hard_limit_enabled?
      options.merge!(Commit.max_diff_options)
    end
    options
  end

  def safe_diff_files(diffs, diff_refs)
    diffs.decorate! { |diff| Gitlab::Diff::File.new(diff, diff_refs) }
  end

  def generate_line_code(file_path, line)
    Gitlab::Diff::LineCode.generate(file_path, line.new_pos, line.old_pos)
  end

  def unfold_bottom_class(bottom)
    bottom ? 'js-unfold-bottom' : ''
  end

  def unfold_class(unfold)
    unfold ? 'unfold js-unfold' : ''
  end

  def diff_line_content(line, line_type = nil)
    if line.blank?
      "  ".html_safe
    else
      line[0] = ' ' if %w[new old].include?(line_type)
      line
    end
  end

  def organize_comments(left, right)
    notes_left = notes_right = nil

    unless left[:type].nil? && right[:type] == 'new'
      notes_left = @grouped_diff_notes[left[:line_code]]
    end

    unless left[:type].nil? && right[:type].nil?
      notes_right = @grouped_diff_notes[right[:line_code]]
    end

    [notes_left, notes_right]
  end

  def inline_diff_btn
    diff_btn('Inline', 'inline', diff_view == 'inline')
  end

  def parallel_diff_btn
    diff_btn('Side-by-side', 'parallel', diff_view == 'parallel')
  end

  def submodule_link(blob, ref, repository = @repository)
    tree, commit = submodule_links(blob, ref, repository)
    commit_id = if commit.nil?
                  Commit.truncate_sha(blob.id)
                else
                  link_to Commit.truncate_sha(blob.id), commit
                end

    [
      content_tag(:span, link_to(truncate(blob.name, length: 40), tree)),
      '@',
      content_tag(:span, commit_id, class: 'monospace'),
    ].join(' ').html_safe
  end

  def commit_for_diff(diff_file)
    if diff_file.deleted_file
      @base_commit || @commit.parent || @commit
    else
      @commit
    end
  end

  def diff_file_html_data(project, diff_commit, diff_file)
    {
      blob_diff_path: namespace_project_blob_diff_path(project.namespace, project,
                                                       tree_join(diff_commit.id, diff_file.file_path))
    }
  end

  def editable_diff?(diff)
    !diff.deleted_file && @merge_request && @merge_request.source_project
  end

  private

  def diff_btn(title, name, selected)
    params_copy = params.dup
    params_copy[:view] = name

    # Always use HTML to handle case where JSON diff rendered this button
    params_copy.delete(:format)

    link_to url_for(params_copy), id: "#{name}-diff-btn", class: (selected ? 'btn active' : 'btn'), data: { view_type: name } do
      title
    end
  end

  def commit_diff_whitespace_link(project, commit, options)
    url = namespace_project_commit_path(project.namespace, project, commit.id, params_with_whitespace)
    toggle_whitespace_link(url, options)
  end

  def diff_merge_request_whitespace_link(project, merge_request, options)
    url = diffs_namespace_project_merge_request_path(project.namespace, project, merge_request, params_with_whitespace)
    toggle_whitespace_link(url, options)
  end

  private

  def hide_whitespace?
    params[:w] == '1'
  end

  def params_with_whitespace
    hide_whitespace? ? request.query_parameters.except(:w) : request.query_parameters.merge(w: 1)
  end

  def toggle_whitespace_link(url, options)
    options[:class] ||= ''
    options[:class] << ' btn btn-default'

    link_to "#{hide_whitespace? ? 'Show' : 'Hide'} whitespace changes", url, class: options[:class]
  end
end