[Erp5-dev] Patches to make XML representation of BT more stable

[Julien Muchembled]

Hello,


Business Templates and ERP5 Subversion are very unfriendly because of several problems:
* wrong and unstable indentation
* several useless attributes appear and disappear
* dynamic data for certain meta types:
  * Z SQL Methods: 'template' attribute (containing a copy of the source)
  * Script (Python): func_code & func_defaults

Here are a few patches fixing them:

* 01_bt_indentation.patch
This fixes the problem related to indendation.
Indentation spaces mustn't be kept in cache (Immutable).

* 02_bt_common_attr.patch
Really remove '_filepath', '_owner', 'uid' and '__ac_local_roles__' attributes instead of setting to None when they are defined on the object.

Both 01_bt_indentation and 02_bt_common_attr patches are backward & forward compatible.

* 03_bt_ZSQLMethod.patch (to apply after 02_bt_common_attr.patch)
Remove the 'template' property. It must be computed again on import.

* 04_bt_PythonScript.patch (to apply after 03_bt_ZSQLMethod.patch)
Remove func_code & func_defaults. Really remove the '_code' attribute.
The script must always be recompiled on import.
For unit tests, I had to rewrite the mechanism of lazy compilation.

03_bt_ZSQLMethod.patch and 04_bt_PythonScript.patch are backward compatible but not forward compatible.
(This means that old code won't be able to import cleaned BT)


Patches have tested and I am ready to apply them.
However, this means that everybody should update their product at the same time.


Julien Muchembled

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