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Mads Kiilerich
ini: specify utf8 for sample MySQL connection strings

By default, the MySQL stack will store unicode as UTF-8 encoded data in string
fields, thus without using any unicode capabilities in the database.

As described in
http://docs.sqlalchemy.org/en/latest/dialects/mysql.html#mysql-unicode , set
charset=utf8 to actually put unicode in the database.

Existing databases that already store utf8 in the database should keep using
the old url.

This will only support 16 bit code points, but utf8mb4 will double the key size
and make them too big for MySQL.
.. _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.