[FIX] better base bundle computation

runbot/models/batch.py

@@ -306,7 +306,6 @@ def _fill_missing(branch_commits, match_type):
             for commit_link in self.commit_link_ids:
                 commit_link.commit_id = commit_link.commit_id._rebase_on(commit_link.base_commit_id)
         commit_link_by_repos = {commit_link.commit_id.repo_id.id: commit_link for commit_link in self.commit_link_ids}
-        bundle_repos = bundle.branch_ids.mapped('remote_id.repo_id')
         version_id = self.bundle_id.version_id.id
         project_id = self.bundle_id.project_id.id
         trigger_customs = {}
@@ -341,11 +340,10 @@ def _fill_missing(branch_commits, match_type):
 
             build = self.env['runbot.build']
             link_type = 'created'
-            force_trigger = trigger_custom and trigger_custom.start_mode == 'force'
-            skip_trigger = (trigger_custom and trigger_custom.start_mode == 'disabled') or trigger.manual
-            should_start = ((trigger.repo_ids & bundle_repos) or bundle.build_all or bundle.sticky)
-            if force_trigger or (should_start and not skip_trigger):  # only auto link build if bundle has a branch for this trigger
+
+            if trigger.should_build(bundle, trigger_custom):
                 link_type, build = self._create_build(params)
+
             self.env['runbot.batch.slot'].create({
                 'batch_id': self.id,
                 'trigger_id': trigger.id,

runbot/models/bundle.py

@@ -87,7 +87,7 @@ def _compute_to_upgrade(self):
         for bundle in self:
             bundle.to_upgrade = bundle.is_base
 
-    @api.depends('name', 'is_base', 'defined_base_id', 'base_id.is_base', 'project_id')
+    @api.depends('name', 'is_base', 'defined_base_id', 'base_id.is_base', 'project_id', 'branch_ids.target_branch_name', 'branch_ids.alive', 'branch_ids.is_pr')
     def _compute_base_id(self):
         for bundle in self:
             if bundle.is_base:
@@ -98,17 +98,19 @@ def _compute_base_id(self):
                 continue
             project_id = bundle.project_id.id
             master_base = False
-            fallback = False
-            for bid, bname in self._get_base_ids(project_id):
-                if bundle.name.startswith('%s-' % bname):
-                    bundle.base_id = self.browse(bid)
+            fallback_id = False
+            pr = bundle.branch_ids.sorted('id desc').filtered(lambda branch: branch.alive and branch.is_pr)
+
+            for base_id, base_name in self._get_base_ids(project_id):
+                if (pr and base_name == pr.target_branch_name) or bundle.name.startswith(f'{base_name}-'):
+                    bundle.base_id = self.browse(base_id)
                     break
-                elif bname == 'master':
-                    master_base = self.browse(bid)
-                elif not fallback or fallback.id < bid:
-                    fallback = self.browse(bid)
+                elif base_name == 'master':
+                    master_base = self.browse(base_id)
+                elif not fallback_id or fallback_id < base_id:
+                    fallback_id = base_id
             else:
-                bundle.base_id = master_base or fallback
+                bundle.base_id = bundle.base_id or master_base or self.browse(fallback_id)
 
     @tools.ormcache('project_id')
     def _get_base_ids(self, project_id):
@@ -241,11 +243,13 @@ def _consistency_warning(self):
             warnings.append(('warning', 'No base defined on this bundle'))
         else:
             for branch in self.branch_ids:
+                if not branch.alive:
+                    continue
                 if branch.is_pr and branch.target_branch_name != self.base_id.name:
                     if branch.target_branch_name.startswith(self.base_id.name):
                         warnings.append(('info', 'PR %s targeting a non base branch: %s' % (branch.dname, branch.target_branch_name)))
                     else:
-                        warnings.append(('warning' if branch.alive else 'info', 'PR %s targeting wrong version: %s (expecting %s)' % (branch.dname, branch.target_branch_name, self.base_id.name)))
+                        warnings.append(('warning', 'PR %s targeting wrong version: %s (expecting %s)' % (branch.dname, branch.target_branch_name, self.base_id.name)))
                 elif not branch.is_pr and not branch.name.startswith(self.base_id.name) and not self.defined_base_id:
                     warnings.append(('warning', 'Branch %s not starting with version name (%s)' % (branch.dname, self.base_id.name)))
         return warnings

runbot/models/repo.py

@@ -37,6 +37,7 @@ class Trigger(models.Model):
     project_id = fields.Many2one('runbot.project', string="Project id", required=True)
     repo_ids = fields.Many2many('runbot.repo', relation='runbot_trigger_triggers', string="Triggers", domain="[('project_id', '=', project_id)]")
     dependency_ids = fields.Many2many('runbot.repo', relation='runbot_trigger_dependencies', string="Dependencies")
+    pr_only = fields.Boolean("Only start trigger if bundle has PR alive")
     config_id = fields.Many2one('runbot.build.config', string="Config", required=True)
     batch_dependent = fields.Boolean('Batch Dependent', help="Force adding batch in build parameters to make it unique and give access to bundle")
 
@@ -90,6 +91,27 @@ def _get_version_domain(self):
             return safe_eval(self.version_domain)
         return []
 
+    def should_build(self, bundle, trigger_custom):
+        if trigger_custom and trigger_custom.start_mode == 'force':
+            return True
+
+        if self.manual:
+            return False
+
+        if (trigger_custom and trigger_custom.start_mode == 'disabled'):
+            return False
+
+        if bundle.build_all or bundle.sticky:
+            return True
+
+        if self.repo_ids & bundle.branch_ids.remote_id.repo_id:
+            if not self.pr_only:
+                return True
+            if any(branch.alive and branch.is_pr for branch in bundle.branch_ids):
+                return True
+
+        return False
+
 
 class Remote(models.Model):
     """