skip profiles if the platform isnt supported

lib/inspec/runner.rb

@@ -53,6 +53,13 @@ module Inspec
     end
 
     def add_profile(profile, options = {})
+      # skip if not supported on this platform
+      if !profile.metadata.nil? && !profile.metadata.supports_runtime?
+        fail 'This profile requires InSpec version '\
+             "#{profile.metadata.inspec_requirement}. You are running "\
+             "InSpec v#{Inspec::VERSION}.\n"
+      end
+
       @test_collector.add_profile(profile)
       options[:metadata] = profile.metadata
 

lib/utils/base_cli.rb

@@ -69,7 +69,8 @@ module Inspec
       targets.each { |target| runner.add_target(target, opts) }
       exit runner.run
     rescue RuntimeError => e
-      puts e.message
+      $stderr.puts e.message
+      exit 1
     end
 
     def diagnose

test/functional/inspec_exec_test.rb

@@ -183,4 +183,22 @@ describe 'inspec exec' do
       File.exist?('/tmp/inspec_test_DONT_CREATE').must_equal false
     end
   end
+
+  describe 'with a profile that is supported on this version of inspec' do
+    let(:out) { inspec('exec ' + File.join(profile_path, 'supported_inspec')) }
+
+    it 'exits cleanly' do
+      out.stderr.must_equal ''
+      out.exit_status.must_equal 0
+    end
+  end
+
+  describe 'with a profile that is not supported on this version of inspec' do
+    let(:out) { inspec('exec ' + File.join(profile_path, 'unsupported_inspec')) }
+
+    it 'does not support this profile' do
+      out.exit_status.must_equal 1
+      out.stderr.must_equal "This profile requires InSpec version >= 99.0.0. You are running InSpec v#{Inspec::VERSION}.\n"
+    end
+  end
 end

test/unit/mock/profiles/supported_inspec/inspec.yml

@@ -0,0 +1,2 @@
+supports:
+- inspec: 0.18

test/unit/mock/profiles/unsupported_inspec/inspec.yml

@@ -0,0 +1,2 @@
+supports:
+- inspec: '>= 99.0.0'