Allow manually republishing thesis in Pending publication status

We had a small batch of theses not end up in the SQS queue as expected.

This small change should allow us to republish each one (one at a time) to see if we
can better track down what happened (i.e. if one errors, we can assume something about it is causing this problem. If they all succeed, it was something external to an individual thesis).

This does not solve the root problem, it just allows us to more efficiently retry publication on individual theses when this app thinks they are in a publishing queue but they are not.

README.md

@@ -383,13 +383,15 @@ Note the `-s` option on the second command, which sets the dyno size for the run
 
 ### Publishing a single thesis
 
-You can publish a single thesis that is already in `Publication review` status by passing the `thesis_id` to a rake
+You can publish a single thesis that is already in `Publication review` or `Pending publication` status by passing the `thesis_id` to a rake
 task:
 
 ```shell
 heroku run -s standard-2x rails dss:publish_thesis_by_id[THESIS_ID] --app TARGET-HEROKU-APP
 ```
 
+Note: `Pending publication` is allowed here, but not expected to be a normal occurence, to handle the edge case of the app thinking data was sent to SQS but the data not arriving for any reason.
+
 ## Preservation workflow
 
 The publishing workflow will automatically trigger preservation for all of the published theses in the results queue.

lib/tasks/dss.rake

@@ -11,7 +11,9 @@ namespace :dss do
       thesis = Thesis.find(args.thesis_id)
 
       # Our publication job expects to be only sent theses that are ready to be published so we need to check here
-      if thesis.publication_status == 'Publication review'
+      # `Publication review` is the normal status for theses entering this process, but we also allow
+      # `Pending publication` to allow us to bump jobs that didn't make it to the SQS queue for any reason.
+      if ['Publication review', 'Pending publication'].include?(thesis.publication_status)
         DspacePublicationJob.perform_now(thesis)
       else
         Rails.logger.info("Thesis status of #{thesis.publication_status} is not publishable.")