def normalize_path(self, path):
"""Construct a canonical representation of a Store path.
A canonical Store path is very simple: it is either the root (/),
a bundle (/name), a package (/name), or a class in a package (/package/class).
Any other extensions are reducible to this by the simple mechanism of cutting
off any prefixing bits.
"""
if path == None or path == "/":
# Root
return "/"
parts = path.split("/")
if parts[0] == "":
parts[0:1] = []
last = parts[-1]
if PackageNode.with_name(self, last) != None or PackageNode.with_name(self, last) != None:
# Bundle/Package or Bundle/Bundle ... all but the last element are unnecessary.
return "/" + last
else:
# Package/Class ... normalize Class by stripping any Root.Smalltalk prefix.
if last.startswith("Root.Smalltalk."):
last = last[len("Root.Smalltalk.") :]
if len(parts) >= 2:
return "/" + parts[-2] + "/" + last
else:
return "/" + last
def get_node(self, path, rev=None):
"""Return a StoreNode subclass appropriate to handle the resource at path and rev."""
# Case 1: Root
if not path or path == "/":
return self.root
parts = path.split("/")
if parts[0] == "":
parts = parts[1:]
# Workaround to deal with us wanting to use None revisions
# in places where unicode() is used
if rev == "None":
rev = None
if len(parts) == 1:
# Case 2: /BundleName
bundle = BundleNode.with_name(self, parts[0], rev)
if bundle != None:
return bundle
# Case 3: /PackageName
package = PackageNode.with_name(self, parts[0], rev)
if package != None:
return package
else:
# Case 4: /PackageName/Fully.Qualified.ClassName
package = PackageNode.with_name(self, parts[-2], rev)
if package != None:
subnode = package.subnode_named(parts[-1])
if subnode != None:
return subnode
raise NoSuchNode(path, rev)
