+ If using Gerrit, in a manual build override with a refspec.
+ https://git-scm.com/book/en/v2/Git-Internals-The-Refspec
+ For example: 'refs/heads/master'
+ - string:
+ name: sha1
+ default: 'origin/{branch}'
+ description: |
+ GitHub PR Trigger provided parameter for specifying the commit
+ to checkout.
+
+ If using GitHub, in a manual build override with a branch path or
+ sha1 hash to a specific commit. For example: 'origin/master'
+ # Tools