rake import_api should work on a different directory

Used infrequently, but don't force directory structure.

Rakefile

@@ -1,19 +1,20 @@
 require 'ascii_binder/tasks/tasks'
 
 task :import_api do
-  sh "pushd ../origin && hack/gen-swagger-docs.sh" do |ok,res|
+  base = ENV['ORIGIN_REPO'] || "../origin"
+  sh "pushd #{base} && hack/gen-swagger-docs.sh" do |ok,res|
     fail "Unable to generate docs" if !ok
   end
-  sh "cp ../origin/_output/local/docs/swagger/api/v1/overview.adoc rest_api/kubernetes_v1.adoc" do |ok,res|
+  sh "cp #{base}/_output/local/docs/swagger/api/v1/overview.adoc rest_api/kubernetes_v1.adoc" do |ok,res|
     fail "Unable to copy latest kubernetes v1 docs" if !ok
   end
-  sh "cat ../origin/_output/local/docs/swagger/api/v1/{paths,definitions}.adoc >> rest_api/kubernetes_v1.adoc" do |ok,res|
+  sh "cat #{base}/_output/local/docs/swagger/api/v1/{paths,definitions}.adoc >> rest_api/kubernetes_v1.adoc" do |ok,res|
     fail "Unable to concat latest kubernetes v1 docs" if !ok
   end
-  sh "cp ../origin/_output/local/docs/swagger/oapi/v1/overview.adoc rest_api/openshift_v1.adoc" do |ok,res|
+  sh "cp #{base}/_output/local/docs/swagger/oapi/v1/overview.adoc rest_api/openshift_v1.adoc" do |ok,res|
     fail "Unable to copy latest openshift v1 docs" if !ok
   end
-  sh "cat ../origin/_output/local/docs/swagger/oapi/v1/{paths,definitions}.adoc >> rest_api/openshift_v1.adoc" do |ok,res|
+  sh "cat #{base}/_output/local/docs/swagger/oapi/v1/{paths,definitions}.adoc >> rest_api/openshift_v1.adoc" do |ok,res|
     fail "Unable to concat latest openshift v1 docs" if !ok
   end
   puts "\nNOTE: You must edit rest_api/kubernetes_v1.adoc and rest_api/openshift_v1.adoc to add TOC metadata"