Class: Keg::Relocation

Inherits:
Object show all
Defined in:
keg_relocate.rb

Constant Summary collapse

RELOCATABLE_PATH_REGEX_PREFIX = 
/(?:(?<=-F|-I|-L|-isystem)|(?<![a-zA-Z0-9]))/.freeze

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Relocation

Returns a new instance of Relocation.



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# File 'keg_relocate.rb', line 17

def initialize
  @replacement_map = {}
end

Class Method Details

.path_to_regex(path) ⇒ Regexp

Parameters:

Returns:

  • (Regexp) 


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# File 'keg_relocate.rb', line 54

def self.path_to_regex(path)
  path = case path
  when String
    Regexp.escape(path)
  when Regexp
    path.source
  end
  Regexp.new(RELOCATABLE_PATH_REGEX_PREFIX.source + path)
end

Instance Method Details

#add_replacement_pair(key, old_value, new_value, path: false) ⇒ void

This method returns an undefined value.

Parameters:

  • key (Symbol)
  • old_value (String, Regexp)
  • new_value (String)
  • path (Boolean) (defaults to: false) 


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# File 'keg_relocate.rb', line 27

def add_replacement_pair(key, old_value, new_value, path: false)
  old_value = self.class.path_to_regex(old_value) if path
  @replacement_map[key] = [old_value, new_value]
end

#freeze ⇒ Object 



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# File 'keg_relocate.rb', line 21

def freeze
  @replacement_map.freeze
  super
end

#replace_text(text) ⇒ Boolean

Parameters:

Returns:

  • (Boolean) 


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# File 'keg_relocate.rb', line 38

def replace_text(text)
  replacements = @replacement_map.values.to_h

  sorted_keys = replacements.keys.sort_by do |key|
    key.is_a?(String) ? key.length : 999
  end.reverse

  any_changed = T.let(nil, T.nilable(String))
  sorted_keys.each do |key|
    changed = text.gsub!(key, replacements[key])
    any_changed ||= changed
  end
  !any_changed.nil?
end

#replacement_pair_for(key) ⇒ Array<String, Regexp>

Parameters:

Returns:



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# File 'keg_relocate.rb', line 33

def replacement_pair_for(key)
  @replacement_map.fetch(key)
end