[FIX] base: generate missing terms ok src dupes

When using "Generate Missing Terms" we export all translations and
reimport them with `create_empty_translation` so they empty translation
are made available.

But since we export all modules in the same PO file, the same terms that
might have different translation in different modules would get the same
translation value after using "Generate missing terms" which is
unexpected => usually we import/export PO file by module and so a term
translation is unique for one module only.

With this changeset, we import translation module by module.

When testing speed of Generate Missing Terms with 90 modules and 37000
translations, the timing taken change like this:

- original code: 21 seconds
- exporting/importing 1 PO file per module: 45 seconds
- exporting 1 TGZ file total/importing 1 PO file per module: 23 seconds

opw-2439029

closes odoo/odoo#68663

X-original-commit: f1dd07a7fb1b3c99839072521725cca8cef1eb2e
Signed-off-by: Nicolas Lempereur (nle) <nle@odoo.com>

1 files changed, 8 insertions, 2 deletions

diff --git a/odoo/addons/base/wizard/base_update_translations.py b/odoo/addons/base/wizard/base_update_translations.py
index 0ac9b301d7b..40a99f4f133 100644
--- a/odoo/addons/base/wizard/base_update_translations.py
+++ b/odoo/addons/base/wizard/base_update_translations.py
@@ -1,6 +1,7 @@
 # -*- coding: utf-8 -*-
 # Part of Odoo. See LICENSE file for full copyright and licensing details.
 
+import tarfile
 import tempfile
 
 from odoo import api, fields, models, tools, _
@@ -27,6 +28,11 @@ class BaseUpdateTranslations(models.TransientModel):
 
     def act_update(self):
         with tempfile.NamedTemporaryFile() as buf:
-            tools.trans_export(self.lang, ['all'], buf, 'po', self._cr)
-            tools.trans_load_data(self._cr, buf, 'po', self.lang, create_empty_translation=True)
+            tools.trans_export(self.lang, ['all'], buf, 'tgz', self._cr)
+            buf.seek(0)
+            tar = tarfile.open(fileobj=buf)
+            for file_info in tar:
+                module_file = tar.extractfile(file_info)
+                tools.trans_load_data(self._cr, module_file, 'po', self.lang, create_empty_translation=True)
+            tar.close()
         return {'type': 'ir.actions.act_window_close'}