Class: Judges::Judges

Inherits:
Object show all
Defined in:
lib/judges/judges.rb

Overview

Collection of all judges to run.

In the directory dir the following structure must be maintained:

dir/
  judge-one/
    judge-one.rb
    other files...
  judge-two/
    judge-two.rb
    other files...

The name of a directory of a judge must be exactly the same as the name of the .rb script inside the directory.

Author

Yegor Bugayenko (yegor256@gmail.com)

Copyright

Copyright © 2024-2025 Yegor Bugayenko

License

MIT

Instance Method Summary collapse

Constructor Details

#initialize(dir, lib, loog, start: Time.now, shuffle: '', boost: []) ⇒ Judges

Initialize.

Parameters:

  • dir (String) —

    Directory containing judges

  • lib (String) —

    Library directory

  • loog (Loog) —

    Logging facility

  • start (Time) (defaults to: Time.now) —

    Start time

  • shuffle (String) (defaults to: '') —

    Prefix for names of judges to shuffle

  • boost (Array<String>) (defaults to: []) —

    Names of judges to boost in priority



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# File 'lib/judges/judges.rb', line 36

def initialize(dir, lib, loog, start: Time.now, shuffle: '', boost: [])
  @dir = dir
  @lib = lib
  @loog = loog
  @start = start
  @shuffle = shuffle || ''
  @boost = boost
end

Instance Method Details

#each {|Judges::Judge| ... } ⇒ Enumerator

Iterates over all valid judges in the directory.

This method discovers all judge directories, validates them (ensuring they contain a corresponding .rb file), and yields them in a specific order. The order is determined by:

  1. Judges whose names match the boost list are placed first

  2. Judges whose names start with the shuffle prefix are randomly reordered

  3. All other judges maintain their alphabetical order

Yields:

Returns:

  • (Enumerator) —

    Returns an enumerator if no block is given



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# File 'lib/judges/judges.rb', line 69

def each(&)
  return to_enum(__method__) unless block_given?
  list =
    Dir.glob(File.join(@dir, '*')).each.to_a.map do |d|
      next unless File.directory?(d)
      b = File.basename(d)
      next unless File.exist?(File.join(d, "#{b}.rb"))
      Judges::Judge.new(File.absolute_path(d), @lib, @loog)
    end
  list.compact!
  list.sort_by!(&:name)
  all = list.each_with_index.to_a
  good = all.dup
  mapping = all
    .map { |a| [a[0].name, a[1], a[1]] }
    .reject { |a| a[0].start_with?(@shuffle) }
    .to_h { |a| [a[1], a[2]] }
  positions = mapping.values.shuffle
  mapping.keys.zip(positions).to_h.each do |before, after|
    good[after] = all[before]
  end
  ret = []
  good.map { |a| a[0] }.each do |j|
    if @boost&.include?(j.name)
      ret.prepend(j)
    else
      ret.append(j)
    end
  end
  ret.each(&)
end

#each_with_index {|Judges::Judge, Integer| ... } ⇒ Integer

Iterates over all judges while tracking their index position.

This method calls the #each method and additionally provides a zero-based index for each judge yielded. The judges are processed in the same order as determined by the #each method (with boost and shuffle rules applied).

Yields:

  • (Judges::Judge, Integer) —

    Yields each judge object along with its index (starting from 0)

Returns:

  • (Integer) —

    The total count of judges processed



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# File 'lib/judges/judges.rb', line 109

def each_with_index
  idx = 0
  each do |p|
    yield [p, idx]
    idx += 1
  end
  idx
end

#get(name) ⇒ Judges::Judge

Retrieves a specific judge by its name.

The judge must exist as a directory within the judges directory with the given name.

Parameters:

  • name (String) —

    The name of the judge to retrieve (directory name)

Returns:

  • (Judges::Judge) —

    The judge object initialized with the found directory

Raises:

  • (RuntimeError) —

    If no judge directory exists with the given name



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# File 'lib/judges/judges.rb', line 52

def get(name)
  d = File.absolute_path(File.join(@dir, name))
  raise "Judge #{name} doesn't exist in #{@dir}" unless File.exist?(d)
  Judges::Judge.new(d, @lib, @loog, start: @start)
end