Mercurial > hg
changeset 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 | 72319005f5fb |
children | 75f9643cab1b |
files | mercurial/namespaces.py |
diffstat | 1 files changed, 25 insertions(+), 0 deletions(-) [+] |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mercurial/namespaces.py Sun Dec 14 12:29:28 2014 -0800 @@ -0,0 +1,25 @@ +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()