def get(cls, id, treeish=None):
"""
Gets the object associated with the given id
"""
workspace = cls._meta.workspace
path = cls._meta.get_data_path(id)
if treeish:
tree = utils.treeish_to_tree(workspace.repo, treeish)
else:
tree = workspace.index
msg = "{} with id {}{} does not exist."
name = cls._meta.model_name
revname = treeish and '@{}'.format(treeish) or ''
msg = msg.format(name, id, revname)
if not tree:
raise exceptions.DoesNotExist(msg)
try:
blob = tree[path].oid
except KeyError:
raise exceptions.DoesNotExist(msg)
data = workspace.repo[blob].data
return cls._meta.serializer.deserialize(workspace, data, blob)
def update_index(self, treeish):
"""Sets the index to the current branch or to the given treeish"""
# Don't change the index if there are pending changes.
if self.index and self.has_changes():
msg = "Cannot checkout a different branch with pending changes"
raise exceptions.RepositoryError(msg)
tree = utils.treeish_to_tree(self.repo, treeish)
if treeish.startswith('refs/heads'):
# if treeish is a head ref, update head
self.head = treeish
else:
# otherwise, we're in "detached head" mode
self.head = None
self.index = tree
def update_index(self, treeish):
"""Sets the index to the current branch or to the given treeish"""
# Don't change the index if there are pending changes.
if self.index and self.has_changes():
msg = "Cannot checkout a different branch with pending changes"
raise exceptions.RepositoryError(msg)
tree = utils.treeish_to_tree(self.repo, treeish)
if treeish.startswith('refs/heads'):
# if treeish is a head ref, update head
self.head = treeish
else:
# otherwise, we're in "detached head" mode
self.head = None
self.index = tree
