Reserved Edit Plugin

[Simon Kersey]

Hi,

I would just like to let you know that I have added a plugin to support
reserved edit functionality to launchpad:

http://launchpad.net/bzr-reserved-edit.

Hopefully the plugin will be useful to people wanting to control updates to
files that don’t merge easily.

The plugin provides the following commands:

red-enable	: enable reserved edits on a centralised branch
red-add		: add file to reserved edit (RED) list
red-remove	: remove file from reserved edit list
red-lock	: lock file on reserved edit list (only user with lock can 
                  commit changes)
red-unlock	: unlock file on reserved edit list
red-ls		: list status of files on reserved edit list

It also installs the following hooks:

Pre-commit hook that stops the user committing changes to files on the 
reserved edit list unless they are locked by that user.

Branch open hook and BzrDir pre-open hook to make reserved edit files
read-only if they are on the reserved edit list and not locked by the 
current user.

Oh and just for fun, it adds some tools (with icons) to the latest versions 
of BzrExplorer via the plugin extensions. 

It is designed to be used in the situation where you have a bound branch or 
checkout from a central branch held on a local file system 
(transport = file://, so also mapped network drives) repository. 

When you run the red-… commands they first attempt to find the central branch 
holding the RED locks.  It does this by attempting to open the supplied 
directory as a working tree; then checking if the tree has a bound location 
or old bound branch; if the bound location has reserved edits enabled then 
this is the central location else it recurses  from the bound location 
looking for a parent with reserved edits enabled. 

In the central location the plugin stores locks in ‘.bzr/red/locks’ and 
status information in ‘branch.conf’.  The following status information is 
stored:
red_is_enabled = True
red_enabled_on = 14/12/2009 15:03:16 UTC
red_enabled_by = <bzr user name>
red_updated_at = 1268042479
red_processed_at = 1260873441

Any feedback would be welcome.

Cheers,

Simon