Module: Locd::Label

Defined in:
lib/locd/label.rb

Overview

Static method namespace for dealing with labels.

Class Method Summary collapse

Class Method Details

.compare(label_a, label_b) ⇒ Object 



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# File 'lib/locd/label.rb', line 50

def self.compare label_a, label_b
  [label_a, label_b].
    map { |label| label.split( '.' ).reverse }.
    thru { |a, b| a <=> b }
end

.regexp_for_glob(string, full: false, ignore_case: false) ⇒ Object

Simple transformation of "glob-style" label patterns to Regexp.

Right now only handles the * wildcard!

Parameters:

  • string (String) —

    Glob-style pattern to search for in Agent#label strings.

  • full: (Boolean) (defaults to: false) —

    When false, the returned Regexp will match any part of label strings.

    When true, the generated Regexp will only match if pattern matches entire label strings.

  • ignore_case: (Boolean) (defaults to: false) —

    Makes the Regexp case-insensitive.



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# File 'lib/locd/label.rb', line 34

def self.regexp_for_glob string, full: false, ignore_case: false
  string.
    # Uncommon option: `-1` causes empty segments to be included, which
    # fixes the issue of `*` at start or end
    split( '*', -1 ).
    map( &Regexp.method( :escape ) ).
    join( '.*' ).
    thru { |regexp_string|
      # Add `\A` and `\z` caps if `exact` is set
      regexp_string = "\\A#{ regexp_string }\\z" if full
      
      Regexp.new regexp_string, ignore_case
    }
end

.url_for(label, tld:, port:) ⇒ Object 



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# File 'lib/locd/label.rb', line 11

def self.url_for label, tld:, port:
  "http://#{ label }:#{ port }"
end