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Mads Kiilerich
lib: simplify version; drop get_current_revision - it was run every time on import time - we don't want that

This functionality was already not in use with the version numbers we use. I
also doubt it is possible to have version numbers where it worked - it seems
like there might have been some regression that nobody noticed. Dropping it
will thus not really lose any actual functionality.

If we want to include the revision number in the version (for browser cache
invalidation) then we should do it in a different way. Perhaps writing it to
some file from setup.py .
.. _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.