gem dependency

Listado de dependencias de una gema instalada específica.

$ gem dependency actionmailer -v'2.3.11'
Gem actionmailer-2.3.11
  actionpack (= 2.3.11)

No instalada disponible en repositorios

Si no está instalada, pero disponibles en los repositorios, puede simplemente agregar -r.

$ gem dependency rhc -r

Gem rhc-1.0.4
  activesupport (~> 3.0, development)
  archive-tar-minitar (>= 0)
  commander (>= 4.0)
  cucumber (>= 0, development)
  dnsruby (>= 0, development)
  fakefs (>= 0.4, development)
  highline (>= 1.5.1)
  net-ssh (>= 2.0.11)
  open4 (>= 0)
  rake (>= 0, development)
  rest-client (>= 1.6)
  rspec (~> 1.3, development)
  test-unit (>= 0)
  thor (>= 0, development)
  webmock (>= 1.6, development)

Gem rhc-rest-0.0.14
  rest-client (>= 0)

Gem rhcp-0.2.18
  json (>= 0.0.0)

Gem rhcp_shell-0.2.12
  rhcp (>= 0.1.9)

Especificando la versión

$ gem dep rhc -r -v 1.2.7 
Gem rhc-1.2.7
  activesupport (~> 3.0, development)
  archive-tar-minitar (>= 0)
  commander (>= 4.0)
  cucumber (>= 0, development)
  dnsruby (>= 0, development)
  fakefs (>= 0.4, development)
  highline (>= 1.5.1)
  net-ssh (>= 2.0.11)
  open4 (>= 0)
  rake (<= 0.9.2.2, >= 0.8.7, development)
  rest-client (>= 1.6)
  rspec (~> 1.3, development)
  test-unit (>= 0)
  thor (>= 0, development)
  webmock (>= 1.6, development)