Library/Homebrew/extend/ENV.rb


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31

require "hardware"
require "extend/ENV/shared"
require "extend/ENV/std"
require "extend/ENV/super"

def superenv?
  Superenv.bin && ARGV.env != "std"
end

module EnvActivation
  def activate_extensions!
    if superenv?
      extend(Superenv)
    else
      extend(Stdenv)
    end
  end

  def with_build_environment
    old_env = to_hash.dup
    tmp_env = to_hash.dup.extend(EnvActivation)
    tmp_env.activate_extensions!
    tmp_env.setup_build_environment
    replace(tmp_env)
    yield
  ensure
    replace(old_env)
  end
end

ENV.extend(EnvActivation)