RFR: csr bot: use pull request cache

[Robin Westberg]

On Tue, 18 Feb 2020 13:32:19 GMT, Erik Helin <ehelin at openjdk.org> wrote:

> Hi all,
> 
> please review this patch that makes the CSR bot use the pull request cache. The
> CSR bot now has two phases, the first phase simply checks if any updated has
> gotten the "csr" label. The addition of a "csr" label can only happen by
> comments being added to the PR, so the `PullRequestCache` will return these PRs
> are requiring an update.
> 
> The second phase then loops through all pull requests that have the CSR label
> and check if the CSR request has been resolved.
> 
> Testing:
> - `make test` passes on Linux x64
> 
> Thanks,
> Erik

Looks good, just one comment about detecting external changes.

bots/csr/src/main/java/org/openjdk/skara/bots/csr/CSRBot.java line 76:

> 75:                 hasCSRLabel.add(pr.id());
> 76:             }
> 77:         }

Perhaps check if the CSR_LABEL is gone but the PR is in hasCSRLabel, in case it was manually removed?

-------------

Marked as reviewed by rwestberg (Reviewer).

PR: https://git.openjdk.java.net/skara/pull/451