# File rubygems/commands/signout_command.rb, line 19
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