Include pull request reviews in database

This extends github-sync to also store pull request reviews in the database.
Review comments are being stored in the same table as regular issue comments.

This change comes with support for both, sync and async Github synchronisation.
Retrieval and storage of review specific comments has been folded into the
github-sync/issue-comments phase - with both, regular comments and review
comments in the same table, this makes timestamp handling easier.

Author: MaineC

db/lib/issueStoreLibrary.rb

@@ -61,7 +61,24 @@ def db_insert_comments(db, comments, org, repo)
     end
   end
 
-  def db_getMaxCommentTimestampForRepo(db, org, repo)
+  # Inserts new comments. If any exist already, it replaces them.
+  def db_insert_pr_reviews(db, comments, org, repo)
+    comments.each do |comment|
+        db["DELETE FROM item_comments WHERE id=?", comment.id].delete
+        # eg: https://github.com/amzn/oss-dashboard/pull/1#discussion_r207199796
+        itemNumber=comment.html_url.sub(/^.*\/([0-9]*)#discussion_r[0-9]*$/, '\1')
+        user=comment.user ? comment.user.login : nil
+        db[
+         "INSERT INTO item_comments (
+               id, org, repo, item_number, user_login, body, created_at, updated_at
+          )
+          VALUES ( ?, ?, ?, ?, ?, ?, ?, ? )",
+          comment.id, org, repo, itemNumber, user, comment.body, gh_to_db_timestamp(comment.created_at),
+          gh_to_db_timestamp(comment.updated_at)].insert
+    end
+ end
+
+ def db_getMaxCommentTimestampForRepo(db, org, repo)
     # Normally '2015-04-18 14:17:02 UTC'
     # Need '2015-04-18T14:17:02Z'
     db["select max(updated_at) from item_comments where org='#{org}' and repo='#{repo}'"].each do |row|

github-sync-tng/issue_comment_command.rb

@@ -60,10 +60,13 @@ def sync_item_comments(context, issue_db, org, repo)
         # Increment the timestamp by a second to avoid getting repeats
         ts=DateTime.strptime(maxTimestamp, '%Y-%m-%dT%H:%M:%S') + Rational(1, 60 * 60 * 24)
         comments=context.client.issues_comments(orgrepo, { 'since' => ts } )
+	pr_reviews=context.client.pull_requests_comments(orgrepo, { 'since' => ts } )
       else
         comments=context.client.issues_comments(orgrepo)
+	pr_reviews=context.client.pull_requests_comments(orgrepo)
       end
       db_insert_comments(issue_db, comments, org, repo)
+      db_insert_pr_reviews(issue_db, pr_reviews, org, repo)
     end
   end
 

github-sync/db_issues/sync-issues.rb

@@ -147,10 +147,13 @@ def getLatestIssueComments(context, issue_db, org, repos)
           # Increment the timestamp by a second to avoid getting repeats
           ts=DateTime.strptime(maxTimestamp, '%Y-%m-%dT%H:%M:%S') + Rational(1, 60 * 60 * 24)
           comments=context.client.issues_comments(repo_obj.full_name, { 'since' => ts } )
+	  pr_reviews=context.client.pull_requests_comments(repo_obj.full_name, { 'since' => ts } )
         else
           comments=context.client.issues_comments(repo_obj.full_name)
+	  pr_reviews=context.client.pull_requests_comments(repo_obj.full_name)
         end
         db_insert_comments(issue_db, comments, org, repo_obj.name)
+        db_insert_pr_reviews(issue_db, pr_reviews, org, repo_obj.name)
       end
       context.feedback.print '.'
     end
@@ -171,3 +174,4 @@ def sync_issue_comments(context, sync_db)
   end
 
 end
+