Open a project's lockfile (if any) for editing. After edit, if the lockfile
edited is associated with the active project, any state-related changes
(e.g. to R repositories) will be updated in the current session.
Usage
modify(project = NULL)
Arguments
project
The project directory. If NULL, then the active project will
be used. If no project is currently active, then the current working
directory is used instead.
Value
The project directory, invisibly. Note that this function is normally
called for its side effects.