Class: Utils::Finder

Inherits:
Object show all
Includes:
Term::ANSIColor, Tins::Find, Patterns
Defined in:
lib/utils/finder.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from Patterns

#choose

Constructor Details

#initialize(opts = {}) ⇒ Finder

Returns a new instance of Finder.


17
18
19
20
21
22
23
24
25
26
27
28
# File 'lib/utils/finder.rb', line 17

def initialize(opts = {})
  @args  = opts[:args] || {}
  @roots = discover_roots(opts[:roots])
  @config = opts[:config] || Utils::ConfigFile.new
  pattern_opts = opts.subhash(:pattern) | {
    :cset  => @args[?a],
    :icase => @args[?i] != ?n,
  }
  @pattern = choose(@args[?p], pattern_opts)
  @paths  = []
  reset_index
end

Instance Attribute Details

#outputObject (readonly)

Returns the value of attribute output


32
33
34
# File 'lib/utils/finder.rb', line 32

def output
  @output
end

#pathsObject (readonly)

Returns the value of attribute paths


30
31
32
# File 'lib/utils/finder.rb', line 30

def paths
  @paths
end

Instance Method Details

#build_pathsObject


41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
# File 'lib/utils/finder.rb', line 41

def build_paths
  paths = []
  visit = -> filename {
    s  = filename.stat
    bn = filename.pathname.basename
    if !s ||
        s.directory? && @config.discover.prune?(bn) ||
        s.file? && @config.discover.skip?(bn)
    then
      @args[?v] and warn "Pruning #{filename.inspect}."
      prune
    end
    true
  }
  find(*@roots, visit: visit) do |filename|
    filename.stat.directory? and filename << ?/
    paths << filename
  end
  paths.uniq!
  paths
end

#create_pathsObject


72
73
74
75
76
77
78
# File 'lib/utils/finder.rb', line 72

def create_paths
  paths = build_paths
  File.secure_write(index_path) do |output|
    output.puts paths
  end
  paths
end

#index_pathObject


63
64
65
66
67
68
69
70
# File 'lib/utils/finder.rb', line 63

def index_path
  roots = @roots.map { |r| File.expand_path(r) }.uniq.sort
  filename = "finder-paths-" +
    Digest::MD5.new.update(roots.inspect).hexdigest
  dirname = File.join(Dir.tmpdir, File.basename($0))
  FileUtils.mkdir_p dirname
  File.join(dirname, filename)
end

#reset_indexObject


91
92
93
94
95
96
97
98
99
# File 'lib/utils/finder.rb', line 91

def reset_index
  path = index_path
  if @args[?r] || index_expired?(path)
    @args[?v] and warn "Resetting index #{path.inspect}."
    FileUtils.rm_f path
    mize_cache_clear
  end
  self
end

#searchObject


39
40
41
42
# File 'lib/utils/finder.rb', line 39

def search_index
  paths = load_paths
  search_paths(paths)
end

#search_directlyObject


105
106
107
# File 'lib/utils/finder.rb', line 105

def search_directly
  search_paths build_paths
end

#search_indexObject


34
35
36
37
# File 'lib/utils/finder.rb', line 34

def search_index
  paths = load_paths
  search_paths(paths)
end

#search_paths(paths) ⇒ Object


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
# File 'lib/utils/finder.rb', line 109

def search_paths(paths)
  suffixes = Array(@args[?I])
  suffixes.full? do |s|
    paths.select! { |path| s.include?(File.extname(path)[1..-1]) }
  end
  paths = paths.map! do |path|
    if match = @pattern.match(path)
      if FuzzyPattern === @pattern
        current = 0
        marked_path = ''
        score, e = path.size, nil
        for i in 1...match.size
          match[i] or next
          b = match.begin(i)
          e ||= b
          marked_path << path[current...b]
          marked_path << red(path[b, 1])
          score += (b - e) * (path.size - b)
          e = match.end(i)
          current = b + 1
        end
        marked_path << match.post_match
        [ score, path, marked_path ]
      else
        marked_path = path[0...match.begin(0)] <<
          red(path[match.begin(0)...match.end(0)]) <<
          path[match.end(0)..-1]
        [ 0, path, marked_path ]
      end
    end
  end
  paths.compact!
  @paths, @output = paths.sort.transpose.values_at(-2, -1)
  if n = @args[?n]&.to_i
    @paths = @paths&.first(n) || []
    @output = @output&.first(n) || []
  end
  self
end