feat: add can-i-deploy usage to README

Author: bethesque

packaging/Gemfile

@@ -1,5 +1,6 @@
 source 'http://rubygems.org'
 
+gem "pact"
 gem "pact-mock_service"
 gem "pact-provider-verifier"
 gem "pact_broker-client"

packaging/README.md.template

@@ -38,6 +38,17 @@ This version (<%= ENV.fetch('VERSION') %>) of the Pact standalone executables pa
 <a name="pact-broker-client"></a>
 ### pact-broker client
 
+<a name="pact-broker-client-publish"></a>
+#### publish
+
 ```
 <%= pact_publish_usage %>
 ```
+
+<a name="pact-broker-client-can-i-deploy"></a>
+#### can-i-deploy
+
+```
+<%= pact_broker_can_i_deploy %>
+```
+

packaging/generate_readme_contents.rb

@@ -9,4 +9,5 @@
 pact_stub_service_usage = `bundle exec pact-stub-service help`
 pact_provider_verifier_usage = `bundle exec pact-provider-verifier help`
 pact_publish_usage = `bundle exec pact-broker help publish`
+pact_broker_can_i_deploy = `bundle exec pact-broker help can-i-deploy`
 puts ERB.new(ARGF.read).result(binding)

tasks/package.rake

@@ -48,6 +48,15 @@ namespace :package do
     sh "rm -rf build/tmp"
     sh "rm -f build/vendor/*/*/cache/*"
   end
+
+  task :generate_readme do
+    Bundler.with_clean_env do
+      sh "mkdir -p build/tmp"
+      sh "cp packaging/Gemfile packaging/Gemfile.lock build/tmp/"
+      sh "cd build/tmp && env BUNDLE_IGNORE_CONFIG=1 bundle install --path ../vendor --without development"
+      generate_readme
+    end
+  end
 end
 
 file "build/traveling-ruby-#{TRAVELING_RUBY_VERSION}-linux-x86.tar.gz" do