throw an error during inspec check if the version is not correct

inspec.gemspec

@@ -43,4 +43,5 @@ Gem::Specification.new do |spec|
   spec.add_dependency 'toml', '~> 0.1'
   spec.add_dependency 'addressable', '~> 2.4'
   spec.add_dependency 'parslet', '~> 1.5'
+  spec.add_dependency 'semverse'
 end

lib/inspec/metadata.rb

@@ -6,6 +6,7 @@
 require 'logger'
 require 'rubygems/version'
 require 'rubygems/requirement'
+require 'semverse'
 
 module Inspec
   # Extract metadata.rb information
@@ -109,6 +110,12 @@ def valid
         next unless params[field.to_sym].nil?
         errors.push("Missing profile #{field} in #{ref}")
       end
+
+      # if version is set, ensure it is correct
+      if !params[:version].nil? && !valid_version?(params[:version])
+        errors.push('Version needs to be in SemVer format')
+      end
+
       %w{ title summary maintainer copyright }.each do |field|
         next unless params[field.to_sym].nil?
         warnings.push("Missing profile #{field} in #{ref}")
@@ -123,6 +130,13 @@ def valid?
       errors.empty? && unsupported.empty?
     end
 
+    def valid_version?(value)
+      Semverse::Version.new(value)
+      true
+    rescue Semverse::InvalidVersionFormat
+      false
+    end
+
     def method_missing(sth, *args)
       @logger.warn "#{ref} doesn't support: #{sth} #{args}"
       @missing_methods.push(sth)

test/unit/mock/profiles/invalid-version/inspec.yml

@@ -0,0 +1,8 @@
+name: invalid-version
+title: InSpec Profile
+maintainer: The Authors
+copyright: The Authors
+copyright_email: you@example.com
+license: All Rights Reserved
+summary: An InSpec Compliance Profile
+version: 0.1.0.999

test/unit/profiles/metadata_test.rb

@@ -39,6 +39,20 @@ def supports_meta(params)
       res.params[:name].must_equal('mock')
     end
 
+    it 'reads the version from metadata' do
+      res = Inspec::Metadata.from_yaml('mock', "---\nversion: '1.1.0'", nil)
+      Inspec::Metadata.finalize(res, 'mock', empty_options)
+      res.params[:version].must_equal('1.1.0')
+      res.valid_version?(res.params[:version]).must_equal(true)
+    end
+
+    it 'does not accept invalid version from metadata' do
+      res = Inspec::Metadata.from_yaml('mock', "---\nversion: '1.1.0.1'", nil)
+      Inspec::Metadata.finalize(res, 'mock', empty_options)
+      res.params[:version].must_equal('1.1.0.1')
+      res.valid_version?(res.params[:version]).must_equal(false)
+    end
+
     it 'finalizes a loaded metadata by turning strings into symbols' do
       res = Inspec::Metadata.from_yaml('mock', "---\nauthor: world", nil)
       Inspec::Metadata.finalize(res, 'mock', empty_options)

test/unit/profiles/profile_test.rb

@@ -282,5 +282,56 @@
         result[:warnings].length.must_equal 0
       end
     end
+
+    describe 'a complete metadata profile with controls in zipfile' do
+      let(:profile_id) { 'complete-profile' }
+      let(:profile_path) { MockLoader.profile_zip(profile_id) }
+      let(:profile) { MockLoader.load_profile(profile_path, {logger: logger}) }
+
+      it 'prints ok messages and counts the controls' do
+        logger.expect :info, nil, ["Checking profile in #{home}/mock/profiles/#{profile_id}"]
+        logger.expect :info, nil, ['Metadata OK.']
+        logger.expect :info, nil, ['Found 1 controls.']
+        logger.expect :info, nil, ['Control definitions OK.']
+
+        result = MockLoader.load_profile(profile_id, {logger: logger}).check
+        # verify logger output
+        logger.verify
+
+        # verify hash result
+        result[:summary][:valid].must_equal true
+        result[:summary][:location].must_equal "#{home}/mock/profiles/#{profile_id}"
+        result[:summary][:profile].must_equal 'complete'
+        result[:summary][:controls].must_equal 1
+        result[:errors].length.must_equal 0
+        result[:warnings].length.must_equal 0
+      end
+    end
+
+    describe 'shows error if version is invalid' do
+      let(:profile_id) { 'invalid-version' }
+      let(:profile_path) { MockLoader.profile_zip(profile_id) }
+      let(:profile) { MockLoader.load_profile(profile_path, {logger: logger}) }
+
+      it 'prints ok messages and counts the controls' do
+        logger.expect :info, nil, ["Checking profile in #{home}/mock/profiles/#{profile_id}"]
+        logger.expect :warn, nil, ['No controls or tests were defined.']
+        logger.expect :error, nil, ['Version needs to be in SemVer format']
+
+        result = MockLoader.load_profile(profile_id, {logger: logger}).check
+
+        # verify logger output
+        logger.verify
+
+        # verify hash result
+        result[:summary][:valid].must_equal false
+        result[:summary][:location].must_equal "#{home}/mock/profiles/#{profile_id}"
+        result[:summary][:profile].must_equal 'invalid-version'
+
+        result[:summary][:controls].must_equal 0
+        result[:errors].length.must_equal 1
+        result[:warnings].length.must_equal 1
+      end
+    end
   end
 end