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
|
# frozen_string_literal: true
# Redmine - project management software
# Copyright (C) 2006-2022 Jean-Philippe Lang
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
class WikiAnnotate
attr_reader :lines, :content
def initialize(content)
@content = content
current = content
current_lines = current.text.split(/\r?\n/)
@lines = current_lines.collect {|t| [nil, nil, t]}
positions = []
current_lines.size.times {|i| positions << i}
while current.previous
d = current.previous.text.split(/\r?\n/).diff(current.text.split(/\r?\n/)).diffs.flatten
d.each_slice(3) do |s|
sign, line = s[0], s[1]
if sign == '+' && positions[line] && positions[line] != -1
if @lines[positions[line]][0].nil?
@lines[positions[line]][0] = current.version
@lines[positions[line]][1] = current.author
end
end
end
d.each_slice(3) do |s|
sign, line = s[0], s[1]
if sign == '-'
positions.insert(line, -1)
else
positions[line] = nil
end
end
positions.compact!
# Stop if every line is annotated
break unless @lines.detect {|line| line[0].nil?}
current = current.previous
end
@lines.each do |line|
line[0] ||= current.version
# if the last known version is > 1 (eg. history was cleared), we don't know the author
line[1] ||= current.author if current.version == 1
end
end
end
|
