On a standard odoo install, `MigrationManager._get_files` represent
more than 4% of an install. This is because the legacy
odoo/base/maintenance/migration path was added to upgrade.__path__
once by module, making the get_filed check 574^2 os.path.exists.
This commit adds a check on initialize_sys_path to call it only once,
and merge legacy path with upgrade-path management in order to benefit
of the `up not in upgrade.__path__` check. This second part of the fix
will also remove the local dir from the upgrades paths.
A further improvement would be to fix MigrationManager in order to skip
_get_file work on a fresh install, (wip by rco-odoo)
closesodoo/odoo#45699
X-original-commit: 497330a695ed52a33f9c9b9c27b149446de0db29
Signed-off-by: Xavier Dollé (xdo) <xdo@odoo.com>
Xavier-Do
7e9918dbe3