class Bundler::EnvironmentPreserver

def self.from_env

def self.from_env
  new(ENV.to_hash, BUNDLER_KEYS)
end

def backup

Returns:
  • (Hash) -
def backup
  env = @original.clone
  @keys.each do |key|
    value = env[key]
    if !value.nil?
      env[@prefix + key] ||= value
    else
      env[@prefix + key] ||= INTENTIONALLY_NIL
    end
  end
  env
end

def initialize(env, keys)

Parameters:
  • keys (Array) --
  • env (Hash) --
def initialize(env, keys)
  @original = env
  @keys = keys
  @prefix = BUNDLER_PREFIX
end

def replace_with_backup

Replaces `ENV` with the bundler environment variables backed up
def replace_with_backup
  ENV.replace(backup)
end

def restore

Returns:
  • (Hash) -
def restore
  env = @original.clone
  @keys.each do |key|
    value_original = env[@prefix + key]
    next if value_original.nil?
    if value_original == INTENTIONALLY_NIL
      env.delete(key)
    else
      env[key] = value_original
    end
    env.delete(@prefix + key)
  end
  env
end