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
module Gitlab
class SnippetSearchResults < SearchResults
attr_reader :limit_snippet_ids
def initialize(limit_snippet_ids, query)
@limit_snippet_ids = limit_snippet_ids
@query = query
end
def objects(scope, page = nil)
case scope
when 'snippet_titles'
Kaminari.paginate_array(snippet_titles).page(page).per(per_page)
when 'snippet_blobs'
Kaminari.paginate_array(snippet_blobs).page(page).per(per_page)
else
super
end
end
def total_count
@total_count ||= snippet_titles_count + snippet_blobs_count
end
def snippet_titles_count
@snippet_titles_count ||= snippet_titles.count
end
def snippet_blobs_count
@snippet_blobs_count ||= snippet_blobs.count
end
private
def snippet_titles
Snippet.where(id: limit_snippet_ids).search(query).order('updated_at DESC')
end
def snippet_blobs
search = Snippet.where(id: limit_snippet_ids).search_code(query)
search = search.order('updated_at DESC').to_a
snippets = []
search.each { |e| snippets << chunk_snippet(e) }
snippets
end
def default_scope
'snippet_blobs'
end
# Get an array of line numbers surrounding a matching
# line, bounded by min/max.
#
# @returns Array of line numbers
def bounded_line_numbers(line, min, max)
lower = line - surrounding_lines > min ? line - surrounding_lines : min
upper = line + surrounding_lines < max ? line + surrounding_lines : max
(lower..upper).to_a
end
# Returns a sorted set of lines to be included in a snippet preview.
# This ensures matching adjacent lines do not display duplicated
# surrounding code.
#
# @returns Array, unique and sorted.
def matching_lines(lined_content)
used_lines = []
lined_content.each_with_index do |line, line_number|
used_lines.concat bounded_line_numbers(
line_number,
0,
lined_content.size
) if line.include?(query)
end
used_lines.uniq.sort
end
# 'Chunkify' entire snippet. Splits the snippet data into matching lines +
# surrounding_lines() worth of unmatching lines.
#
# @returns a hash with {snippet_object, snippet_chunks:{data,start_line}}
def chunk_snippet(snippet)
lined_content = snippet.content.split("\n")
used_lines = matching_lines(lined_content)
snippet_chunk = []
snippet_chunks = []
snippet_start_line = 0
last_line = -1
# Go through each used line, and add consecutive lines as a single chunk
# to the snippet chunk array.
used_lines.each do |line_number|
if last_line < 0
# Start a new chunk.
snippet_start_line = line_number
snippet_chunk << lined_content[line_number]
elsif last_line == line_number - 1
# Consecutive line, continue chunk.
snippet_chunk << lined_content[line_number]
else
# Non-consecutive line, add chunk to chunk array.
snippet_chunks << {
data: snippet_chunk.join("\n"),
start_line: snippet_start_line + 1
}
# Start a new chunk.
snippet_chunk = [lined_content[line_number]]
snippet_start_line = line_number
end
last_line = line_number
end
# Add final chunk to chunk array
snippet_chunks << {
data: snippet_chunk.join("\n"),
start_line: snippet_start_line + 1
}
# Return snippet with chunk array
{ snippet_object: snippet, snippet_chunks: snippet_chunks }
end
# Defines how many unmatching lines should be
# included around the matching lines in a snippet
def surrounding_lines
3
end
end
end