# File lib/rubygems/commands/uninstall_command.rb, line 11
11:       def initialize
12:         super 'uninstall', 'Uninstall gems from the local repository',
13:               :version => Gem::Requirement.default
14: 
15:         add_option('-a', '--[no-]all',
16:           'Uninstall all matching versions'
17:           ) do |value, options|
18:           options[:all] = value
19:         end
20: 
21:         add_option('-I', '--[no-]ignore-dependencies',
22:                    'Ignore dependency requirements while',
23:                    'uninstalling') do |value, options|
24:           options[:ignore] = value
25:         end
26: 
27:         add_option('-x', '--[no-]executables',
28:                      'Uninstall applicable executables without',
29:                      'confirmation') do |value, options|
30:           options[:executables] = value
31:         end
32: 
33:         add_option('-i', '--install-dir DIR',
34:                    'Directory to uninstall gem from') do |value, options|
35:           options[:install_dir] = File.expand_path(value)
36:         end
37: 
38:         add_option('-n', '--bindir DIR',
39:                    'Directory to remove binaries from') do |value, options|
40:           options[:bin_dir] = File.expand_path(value)
41:         end
42: 
43:         add_version_option
44:         add_platform_option
45:       end

    # File lib/rubygems/commands/uninstall_command.rb, line 60
60:       def execute
61:         get_all_gem_names.each do |gem_name|
62:           begin
63:             Gem::Uninstaller.new(gem_name, options).uninstall
64:           rescue Gem::GemNotInHomeException => e
65:             spec = e.spec
66:             alert("In order to remove #{spec.name}, please execute:\n" \
67:                   "\tgem uninstall #{spec.name} --install-dir=#{spec.installation_path}")
68:           end
69:         end
70:       end