Mercurial > hg
view mercurial/namespaces.py @ 23553:7cebb6a8c75f
namespaces: introduce a generic way to map between names and nodes
This patch begins the work to provide a way to register a namespace to handle
'names'. Benefits of this would be,
- improved templating: This would provide {name} which could output any branch,
bookmark, tag, or any extension registered namespace all without having the
extension doing any extra work
- improved tab completion: Since this provides a single source of all 'names',
tab completion would not need to know of each namespace
- changeset lookup: Similar to before, a unified place to get all 'names' will
allow finding changesets without any extension code having to reimplement
this
Also, d226fe36e362 has shown us that for internal code which expects a certain
type of method or behavior, we should provide an easy way for extensions to
check this behavior.
author | Sean Farley <sean.michael.farley@gmail.com> |
---|---|
date | Sun, 14 Dec 2014 12:29:28 -0800 |
parents | |
children | 75f9643cab1b |
line wrap: on
line source
from mercurial import util class namespaces(object): """ provides an interface to register a generic many-to-many mapping between some (namespaced) names and nodes. The goal here is to control the pollution of jamming things into tags or bookmarks (in extension-land) and to simplify internal bits of mercurial: log output, tab completion, etc. More precisely, we define a list of names (the namespace) and a mapping of names to nodes. This name mapping returns a list of nodes. Furthermore, each name mapping will be passed a name to lookup which might not be in its domain. In this case, each method should return an empty list and not raise an error. We'll have a dictionary '_names' where each key is a namespace and its value is a dictionary of functions: 'namemap': function that takes a name and returns a list of nodes """ _names_version = 0 def __init__(self): self._names = util.sortdict()