[FIX] runbot, runbot_cla: notify each repo of cla status

When a PR is a duplicate of a branch, only the branch CLA status are
update. The same issue for build status was fixed in commit 4f1a55da9.

With this commit, there is new method than can be used in runbot_cla.
This method updates commit given status in each repo.

runbot/models/build.py

@@ -718,6 +718,14 @@ class runbot_build(models.Model):
         p = subprocess.Popen(cmd, stdout=out, stderr=out, preexec_fn=preexec_fn, shell=shell, env=env, close_fds=False)
         return p.pid
 
+    def _github_status_notify_all(self, status):
+        """Notify each repo with a status"""
+        self.ensure_one()
+        commits = {(b.repo_id, b.name) for b in self.search([('name', '=', self.name)])}
+        for repo, commit_hash in commits:
+            _logger.debug("github updating %s status %s to %s in repo %s", status['context'], commit_hash, status['state'], repo.name)
+            repo._github('/repos/:owner/:repo/statuses/%s' % commit_hash, status, ignore_errors=True)
+
     def _github_status(self):
         """Notify github of failed/successful builds"""
         runbot_domain = self.env['runbot.repo']._domain()
@@ -734,16 +742,13 @@ class runbot_build(models.Model):
                 desc += " (runtime %ss)" % (build.job_time,)
             else:
                 continue
-            commits = {(b.repo_id, b.name) for b in self.search([('name', '=', build.name)])}
-            for repo, commit_hash in commits:
-                status = {
-                    "state": state,
-                    "target_url": "http://%s/runbot/build/%s" % (runbot_domain, build.id),
-                    "description": desc,
-                    "context": "ci/runbot"
-                }
-                _logger.debug("github updating status %s to %s", build.name, state)
-                repo._github('/repos/:owner/:repo/statuses/%s' % commit_hash, status, ignore_errors=True)
+            status = {
+                "state": state,
+                "target_url": "http://%s/runbot/build/%s" % (runbot_domain, build.id),
+                "description": desc,
+                "context": "ci/runbot"
+            }
+            build._github_status_notify_all(status)
 
     # Jobs definitions
     # They all need "build, lock_pathn log_path" parameters

runbot_cla/runbot.py

@@ -38,6 +38,6 @@ class runbot_build(models.Model):
                 "context": "legal/cla"
             }
             build._log('check_cla', 'CLA %s' % state)
-            build.repo_id._github('/repos/:owner/:repo/statuses/%s' % build.name, status, ignore_errors=True)
+            build._github_status_notify_all(status)
         # 0 is myself, -1 is everybody else, -2 nothing
         return -2