feat(pact-provider-verifier cli): allow custom certificates to be use…

…d by setting SSL_CERT_FILE and SSL_CERT_DIR

packaging/pact-provider-verifier.rb

@@ -12,4 +12,17 @@ def basename
   end
 end
 
+# Travelling Ruby sets its own CA cert bundle in lib/ruby/bin/ruby_environment
+# and creates backup environment variables for the original SSL_CERT values.
+# Restore the original values here *if they are present* so that we can connect to
+# a broker with a custom SSL certificate.
+
+if ENV['ORIG_SSL_CERT_DIR'] && ENV['ORIG_SSL_CERT_DIR'] != ''
+  ENV['SSL_CERT_DIR'] = ENV['ORIG_SSL_CERT_DIR']
+end
+
+if ENV['ORIG_SSL_CERT_FILE'] && ENV['ORIG_SSL_CERT_FILE'] != ''
+  ENV['SSL_CERT_FILE'] = ENV['ORIG_SSL_CERT_FILE']
+end
+
 Pact::ProviderVerifier::CLI::Verify.start