Add oldconfig.py example script

Implements the standard 'make oldconfig' functionality, prompting the
user for the values of new symbols to update an old .config file.

This came up in
https://github.com/zephyrproject-rtos/zephyr/issues/5426.

1 files changed, 2 insertions, 0 deletions

diff --git a/README.rst b/README.rst
index ad8143f..b582b35 100644
--- a/README.rst
+++ b/README.rst
@@ -207,6 +207,8 @@ The `examples/ <https://github.com/ulfalizer/Kconfiglib/blob/master/examples>`_
 
 - `merge_config.py <https://github.com/ulfalizer/Kconfiglib/blob/master/examples/merge_config.py>`_ merges configuration fragments to produce a complete .config, similarly to ``scripts/kconfig/merge_config.sh`` from the kernel.
 
+- `oldconfig.py <https://github.com/ulfalizer/Kconfiglib/blob/master/examples/oldconfig.py>`_ provides ``make oldconfig`` functionality, prompting the user for the values of new symbols to update an old ``.config`` file.
+
 - `menuconfig.py <https://github.com/ulfalizer/Kconfiglib/blob/master/examples/menuconfig.py>`_ implements a configuration interface that uses notation similar to ``make menuconfig``. It's deliberately kept as simple as possible to demonstrate just the core concepts, and isn't something you'd actually want to use. Here's a screenshot:
 
 .. code-block::