Class: Zold::Copies

Inherits:
Object
  • Object
show all
Defined in:
lib/zold/copies.rb

Overview

All copies

Constant Summary collapse

EXT =

Extension for copy files

'.zc'

Instance Method Summary collapse

Constructor Details

#initialize(dir, log: Log::Quiet.new) ⇒ Copies

Returns a new instance of Copies.



42
43
44
45
 
# File 'lib/zold/copies.rb', line 42

def initialize(dir, log: Log::Quiet.new)
  @dir = dir
  @log = log
end

Instance Method Details

#add(content, host, port, score, time = Time.now) ⇒ Object

Returns the name of the copy



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
 
# File 'lib/zold/copies.rb', line 92

def add(content, host, port, score, time = Time.now)
  raise "Content can't be empty" if content.empty?
  raise 'TCP port must be of type Integer' unless port.is_a?(Integer)
  raise "TCP port can't be negative: #{port}" if port.negative?
  raise 'Time must be of type Time' unless time.is_a?(Time)
  raise "Time must be in the past: #{time}" if time > Time.now
  raise 'Score must be Integer' unless score.is_a?(Integer)
  raise "Score can't be negative: #{score}" if score.negative?
  Futex.new(file, log: @log).open do
    FileUtils.mkdir_p(@dir)
    list = load
    target = list.find do |s|
      f = File.join(@dir, "#{s[:name]}#{Copies::EXT}")
      File.exist?(f) && IO.read(f) == content
    end
    if target.nil?
      max = DirItems.new(@dir).fetch
        .select { |f| File.basename(f, Copies::EXT) =~ /^[0-9]+$/ }
        .map(&:to_i)
        .max
      max = 0 if max.nil?
      name = (max + 1).to_s
      IO.write(File.join(@dir, "#{name}#{Copies::EXT}"), content)
    else
      name = target[:name]
    end
    list.reject! { |s| s[:host] == host && s[:port] == port }
    list << {
      name: name,
      host: host,
      port: port,
      score: score,
      time: time
    }
    save(list)
    name
  end
end

#all ⇒ Object 



131
132
133
134
135
136
137
138
139
140
141
142
143
 
# File 'lib/zold/copies.rb', line 131

def all
  Futex.new(file, log: @log).open do
    load.group_by { |s| s[:name] }.map do |name, scores|
      {
        name: name,
        path: File.join(@dir, "#{name}#{Copies::EXT}"),
        score: scores.select { |s| s[:time] > Time.now - 24 * 60 * 60 }
          .map { |s| s[:score] }
          .inject(&:+) || 0
      }
    end.select { |c| File.exist?(c[:path]) }.sort_by { |c| c[:score] }.reverse
  end
end

#clean ⇒ Object 



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
 
# File 'lib/zold/copies.rb', line 55

def clean
  Futex.new(file, log: @log).open do
    list = load
    list.reject! { |s| s[:time] < Time.now - 24 * 60 * 60 }
    save(list)
    deleted = 0
    files.each do |f|
      next unless list.find { |s| s[:name] == File.basename(f, Copies::EXT) }.nil?
      file = File.join(@dir, f)
      size = File.size(file)
      File.delete(file)
      @log.debug("Copy at #{f} deleted: #{Size.new(size)}")
      deleted += 1
    end
    files.each do |f|
      file = File.join(@dir, f)
      wallet = Wallet.new(file)
      begin
        wallet.refurbish
        raise "Invalid protocol #{wallet.protocol} in #{file}" unless wallet.protocol == Zold::PROTOCOL
      rescue StandardError => e
        FileUtils.rm_rf(file)
        @log.debug("Copy at #{f} deleted: #{Backtrace.new(e)}")
        deleted += 1
      end
    end
    deleted
  end
end

#load ⇒ Object 



145
146
147
148
149
150
151
152
153
154
155
156
157
 
# File 'lib/zold/copies.rb', line 145

def load
  FileUtils.mkdir_p(File.dirname(file))
  FileUtils.touch(file)
  CSV.read(file).map do |s|
    {
      name: s[0],
      host: s[1],
      port: s[2].to_i,
      score: s[3].to_i,
      time: Time.parse(s[4])
    }
  end
end

#remove(host, port) ⇒ Object 



85
86
87
88
89
 
# File 'lib/zold/copies.rb', line 85

def remove(host, port)
  Futex.new(file, log: @log).open do
    save(load.reject { |s| s[:host] == host && s[:port] == port })
  end
end

#root ⇒ Object 



47
48
49
 
# File 'lib/zold/copies.rb', line 47

def root
  File.expand_path(File.join(@dir, '..'))
end

#to_s ⇒ Object 



51
52
53
 
# File 'lib/zold/copies.rb', line 51

def to_s
  File.basename(@dir)
end