The DarcsPatchWatch plugin for lambdabot watches a darcs repository and reports changes applied to the repository to an IRC channel.
The channel to which change messages are sent is hardcoded into the plugin’s source code. The list of repositories can be changed dynamically:
@repos: list all registered darcs repositories
@repo-add path: add a repository
@repo-del path: delete a repository
path must be an absolute path name. This means that only repositories accessible over the local filesystem are supported.