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ruby / 2.6 / bundler / environmentpreserver.html

class Bundler::EnvironmentPreserver

Parent:
Object

Constants

BUNDLER_KEYS
BUNDLER_PREFIX
INTENTIONALLY_NIL

Public Class Methods

new(env, keys) Show source 
# File lib/bundler/environment_preserver.rb, line 23
def initialize(env, keys)
  @original = env.to_hash
  @keys = keys
  @prefix = BUNDLER_PREFIX
end

@param env [ENV] @param keys [Array<String>]

Public Instance Methods

backup() Show source 
# File lib/bundler/environment_preserver.rb, line 30
def backup
  env = @original.clone
  @keys.each do |key|
    value = env[key]
    if !value.nil? && !value.empty?
      env[@prefix + key] ||= value
    elsif value.nil?
      env[@prefix + key] ||= INTENTIONALLY_NIL
    end
  end
  env
end

@return [Hash]

restore() Show source 
# File lib/bundler/environment_preserver.rb, line 44
def restore
  env = @original.clone
  @keys.each do |key|
    value_original = env[@prefix + key]
    next if value_original.nil? || value_original.empty?
    if value_original == INTENTIONALLY_NIL
      env.delete(key)
    else
      env[key] = value_original
    end
    env.delete(@prefix + key)
  end
  env
end

@return [Hash]

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Licensed under the Ruby License.
Ruby Standard Library © contributors
Licensed under their own licenses.