[IMP] add customer on runbot build tasks

Idea is to help runbot/QA team to monitor other peoples tasks
easier. This way we will have a responsible person for each task
that someone else has assigned.
The goal of pr is two-fold:
1) We need to be able to better monitor the progress of tasks that
are not our own.
2) It introduces another metric with which we can measure individual
progress, and this can become main measuring metric for future non-technical
employees whose main goal will be making sure that none of the tasks become
rotten(not have any visible progress for months).

runbot/models/build_error.py

@@ -50,6 +50,7 @@ class BuildError(models.Model):
     fingerprint = fields.Char('Error fingerprint', index=True)
     random = fields.Boolean('underterministic error', tracking=True)
     responsible = fields.Many2one('res.users', 'Assigned fixer', tracking=True)
+    customer = fields.Many2one('res.users', 'Customer', tracking=True)
     team_id = fields.Many2one('runbot.team', 'Assigned team', tracking=True)
     fixing_commit = fields.Char('Fixing commit', tracking=True)
     fixing_pr_id = fields.Many2one('runbot.branch', 'Fixing PR', tracking=True, domain=[('is_pr', '=', True)])
@@ -88,6 +89,12 @@ class BuildError(models.Model):
             record.tags_min_version_id = min(record.version_ids, key=lambda rec: rec.number)
             record.tags_max_version_id = max(record.version_ids, key=lambda rec: rec.number)
 
+    @api.onchange('customer')
+    def _onchange_customer(self):
+        for record in self:
+            if not self.responsible:
+                self.responsible = self.customer
+
     @api.model_create_multi
     def create(self, vals_list):
         cleaners = self.env['runbot.error.regex'].search([('re_type', '=', 'cleaning')])

runbot/views/build_error_views.xml

@@ -29,6 +29,7 @@
                     <field name="tags_max_version_id" invisible="not test_tags"/>
                   </group>
                   <group>
+                    <field name="customer"/>
                     <field name="version_ids" widget="many2many_tags"/>
                     <field name="trigger_ids" widget="many2many_tags"/>
                     <field name="tag_ids" widget="many2many_tags" readonly="1"/>