blob: 574ceb64ed8f5b01e109358630ac4594cee6e8af (
plain)
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
32
33
  | 
#:  * `leaves`:
#:    Show installed formulae that are not dependencies of another installed formula.
require "formula"
require "tab"
require "set"
module Homebrew
  module_function
  def leaves
    installed = Formula.installed.sort
    deps_of_installed = Set.new
    installed.each do |f|
      deps = []
      f.deps.each do |dep|
        if dep.optional? || dep.recommended?
          deps << dep.to_formula.full_name if f.build.with?(dep)
        else
          deps << dep.to_formula.full_name
        end
      end
      deps_of_installed.merge(deps)
    end
    installed.each do |f|
      puts f.full_name unless deps_of_installed.include? f.full_name
    end
  end
end
  |