[MERGE] forward port branch 11.0 up to f96a797fe62

3 files changed, 27 insertions, 2 deletions

diff --git a/odoo/modules/__init__.py b/odoo/modules/__init__.py
index 530f81ff5e3..b223df99280 100644
--- a/odoo/modules/__init__.py
+++ b/odoo/modules/__init__.py
@@ -7,7 +7,7 @@
 
 from . import db, graph, loading, migration, module, registry
 
-from odoo.modules.loading import load_modules
+from odoo.modules.loading import load_modules, reset_modules_state
 
 from odoo.modules.module import (
     adapt_version,
diff --git a/odoo/modules/loading.py b/odoo/modules/loading.py
index 14a71b49e76..6c4600c8109 100644
--- a/odoo/modules/loading.py
+++ b/odoo/modules/loading.py
@@ -431,3 +431,24 @@ def load_modules(db, force_demo=False, status=None, update_module=False):
 
     finally:
         cr.close()
+
+
+def reset_modules_state(db_name):
+    """
+    Resets modules flagged as "to x" to their original state
+    """
+    # Warning, this function was introduced in response to commit 763d714
+    # which locks cron jobs for dbs which have modules marked as 'to %'.
+    # The goal of this function is to be called ONLY when module
+    # installation/upgrade/uninstallation fails, which is the only known case
+    # for which modules can stay marked as 'to %' for an indefinite amount
+    # of time
+    db = odoo.sql_db.db_connect(db_name)
+    with db.cursor() as cr:
+        cr.execute(
+            "UPDATE ir_module_module SET state='installed' WHERE state IN ('to remove', 'to upgrade')"
+        )
+        cr.execute(
+            "UPDATE ir_module_module SET state='uninstalled' WHERE state='to install'"
+        )
+        _logger.warning("Transient module states were reset")
diff --git a/odoo/modules/registry.py b/odoo/modules/registry.py
index 1efc6aa195f..5c1c5111cf0 100644
--- a/odoo/modules/registry.py
+++ b/odoo/modules/registry.py
@@ -81,7 +81,11 @@ class Registry(Mapping):
                 try:
                     registry.setup_signaling()
                     # This should be a method on Registry
-                    odoo.modules.load_modules(registry._db, force_demo, status, update_module)
+                    try:
+                        odoo.modules.load_modules(registry._db, force_demo, status, update_module)
+                    except Exception:
+                        odoo.modules.reset_modules_state(db_name)
+                        raise
                 except Exception:
                     _logger.exception('Failed to load registry')
                     del cls.registries[db_name]