[PATCH] - Enable use of __shared_dir__ within siteconfig.py

[ilias@…]

The attached patch introduces the use of the attribute "shared_dir" within siteconfig.py.

This addition does not change the existent behaviour, thus installations do not break.

A user _can_ set this attribute and delete all existent default... attributes (which contain redundant path information).

Existent default... attributes have priority over the shared_dir attribute.

context:

 http://dev.lazaridis.com/base/ticket/43

[ilias@…]

new patch with corrected name of option "parent_env"

[ilias@…]

further notes:

 http://dev.lazaridis.com/base/wiki/PlanEnvInheritance

[ilias@…]

blocks #3905

[ilias@…]

related: wiki:TracDev/Proposals/Setuptools

[ilias@…]

an possible implementation, which would be backwards compatible even if setuptools is introduced would be:

• apply the patch
• use the planned setuptools package-data
• if siteconfig.py is existent, the locations override the package-data

[ilias@…]

related: setuptools-merge, see [4819]

[ilias@…]

Closing, as wontfix (or cannotfix) in the way suggested.

Reasoning:

The trac-code is read-only-data and must remain free of any configuration data.