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Thomas De Schampheleire

ini: set 'debug' only in one place

In Pylons-based Kallithea, the 'debug' option was set first in [DEFAULTS]
and then overridden with 'set debug = X' in [app:main]. Even when the value
under [DEFAULTS] was commented out, the use of the 'set' keyword (providing
override semantics) was required, because a default value for the global
'debug' was provided in the framework.

The presence of these two debug assignments is confusing.
Moreover, TurboGears2 makes the situation more easy and does not expect
'debug' to be in [DEFAULTS] nor does it provide a default at that level.
As a result, we can simple use 'debug = X' under [app:main].

Additionally, clarify the Big Fat Warning: the wording 'the line below' is
ambiguous and could be misunderstood in an ini file that had previously been
changed.

.. _locking:

==================
Repository locking
==================

Kallithea has a *repository locking* feature, disabled by default. When
enabled, every initial clone and every pull gives users (with write permission)
the exclusive right to do a push.

When repository locking is enabled, repositories get a ``locked`` flag.
The hg/git commands ``hg/git clone``, ``hg/git pull``,
and ``hg/git push`` influence this state:

- A ``clone`` or ``pull`` action locks the target repository
  if the user has write/admin permissions on this repository.

- Kallithea will remember the user who locked the repository so only this
  specific user can unlock the repo by performing a ``push``
  command.

- Every other command on a locked repository from this user and every command
  from any other user will result in an HTTP return code 423 (Locked).
  Additionally, the HTTP error will mention the user that locked the repository
  (e.g., “repository <repo> locked by user <user>”).

Each repository can be manually unlocked by an administrator from the
repository settings menu.