1 files changed, 33 insertions, 0 deletions
diff --git a/lib/rubygems/commands/signout_command.rb b/lib/rubygems/commands/signout_command.rb
new file mode 100644
index 0000000000..2452e8cae1
--- /dev/null
+++ b/lib/rubygems/commands/signout_command.rb
@@ -0,0 +1,33 @@
+# frozen_string_literal: true
+require 'rubygems/command'
+
+class Gem::Commands::SignoutCommand < Gem::Command
+
+  def initialize
+    super 'signout', 'Sign out from all the current sessions.'
+  end
+
+  def description # :nodoc:
+    'The `signout` command is used to sign out from all current sessions,'\
+    ' allowing you to sign in using a different set of credentials.'
+  end
+
+  def usage # :nodoc:
+    program_name
+  end
+
+  def execute
+    credentials_path = Gem.configuration.credentials_path
+
+    if !File.exist?(credentials_path) then
+      alert_error 'You are not currently signed in.'
+    elsif !File.writable?(credentials_path) then
+      alert_error "File '#{Gem.configuration.credentials_path}' is read-only."\
+                  ' Please make sure it is writable.'
+    else
+      Gem.configuration.unset_api_key!
+      say 'You have successfully signed out from all sessions.'
+    end
+  end
+
+end