lib/kontena/cli/plugins/install_command.rb in kontena-cli-0.16.0.pre5 vs lib/kontena/cli/plugins/install_command.rb in kontena-cli-0.16.0.pre6

@@ -1,22 +1,29 @@
 require 'open3'
 
 module Kontena::Cli::Plugins
   class InstallCommand < Kontena::Command
     include Kontena::Util
+    include Kontena::Cli::Common
 
     parameter 'NAME', 'Plugin name'
 
+    option ['-v', '--version'], 'VERSION', 'Specify version of plugin to install'
+    option '--pre', :flag, 'Allow pre-release of a plugin to be installed', default: false
+
     def execute
       install_plugin(name)
     end
 
     def install_plugin(name)
       plugin = "kontena-plugin-#{name}"
       gem_bin = which('gem')
-      install_command = "#{gem_bin} install --no-ri --no-doc #{plugin}"
+      install_options = ['--no-ri', '--no-doc']
+      install_options << "--version #{version}" if version
+      install_options << "--pre" if pre?
+      install_command = "#{gem_bin} install #{install_options.join(' ')} #{plugin}"
       success = false
-      spinner "Installing plugin #{name.colorize(:cyan)}" do
+      spinner "installing plugin #{name.colorize(:cyan)}" do
         stdout, stderr, status = Open3.capture3(install_command)
         unless stderr.empty?
           raise stderr
         end
       end