feat(files): Source file upload: allow replacing source file with app…

…ropriate unit permissions (#11513)

In addition to previous permission `component.edit`, now also allow the `replace` upload method on
source file upload, if the `unit.add`, `unit.delete` and `unit.edit` permissions are present.

This allows to give users access to replacing the source file, without having to give them full
`component.edit` permissions.

Co-authored-by: Michal Čihař <michal@cihar.com>

docs/user/files.rst

@@ -129,7 +129,8 @@ Replace existing translation file (``replace``)
     Existing file is replaced with new content. This can lead to loss of existing
     translations, use with caution.
 
-    This option is available only if the user has the :ref:`"Edit component settings" permission <privileges>`.
+    This option is available only if the user has the
+    :ref:`"Edit component settings" permission or "Add new string", "Remove a string" and "Edit strings" permissions <privileges>`.
 Update source strings (``source``)
     Updates source strings in bilingual translation file. This is similar to
     what :ref:`addon-weblate.gettext.msgmerge` does.

weblate/trans/util.py

@@ -347,8 +347,9 @@ def check_upload_method_permissions(
     if method == "approve":
         return user.has_perm("unit.review", translation)
     if method == "replace":
-        return bool(translation.filename) and user.has_perm(
-            "component.edit", translation
+        return bool(translation.filename) and (
+            user.has_perm("component.edit", translation)
+            or user.has_perms(["unit.add", "unit.delete", "unit.edit"], translation)
         )
     raise ValueError(f"Invalid method: {method}")