add info command to CLI

lib/gitlab/cli.rb

@@ -14,6 +14,13 @@ def self.run(cmd, args=[])
     case cmd
     when 'help'
       puts actions_table
+    when 'info'
+      endpoint = Gitlab.endpoint ? Gitlab.endpoint : 'not set'
+      private_token = Gitlab.private_token ? Gitlab.private_token : 'not set'
+      puts "Gitlab endpoint is #{endpoint}"
+      puts "Gitlab private token is #{private_token}"
+      puts "Ruby Version is #{RUBY_VERSION}"
+      puts "Gitlab Ruby Gem #{Gitlab::VERSION}"
     when '-v', '--version'
       puts "Gitlab Ruby Gem #{Gitlab::VERSION}"
     else

spec/gitlab/cli_spec.rb

@@ -9,6 +9,16 @@
       end
     end
 
+    context "when command is info" do
+      it "should show environment info" do
+        output = capture_output { Gitlab::CLI.run('info') }
+        expect(output).to include("Gitlab endpoint is")
+        expect(output).to include("Gitlab private token is")
+        expect(output).to include("Ruby Version is")
+        expect(output).to include("Gitlab Ruby Gem")
+      end
+    end
+
     context "when command is help" do
       it "should show available actions" do
         output = capture_output { Gitlab::CLI.run('help') }