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import py
from operator import attrgetter
from .dotfile import Dotfile
class Repository(object):
"""
This class implements the 'repository' abstraction.
A repository is a directory that contains dotfiles. It has two primary
attributes:
repodir -- the location of the repository directory
homedir -- the location of the home directory (primarily for testing)
Both of the above attributes are received as string objects and converted
to py.path.local objects for internal use.
The repository implements these fundamental operations:
status -- list the dotfiles (and their state) contained herein
check -- list any dotfiles unsynced or unmanaged that require attention
sync -- create some or all missing dotfile symlinks
unsync -- remove some or all dotfile symlinks
add -- add a dotfile to this repository and create its symlink
remove -- the opposited of add
move -- change the name of this repository and update dependent symlinks
"""
def __init__(self, repodir, homedir='~'):
self.repodir = repodir
self.homedir = homedir
def __str__(self):
return self._contents() or '[no dotfiles found]'
def __repr__(self):
return '<Repository %r>' % self.repodir
@property
def repodir(self):
return str(self._repodir)
@repodir.setter
def repodir(self, path):
self._repodir = py.path.local(path, expanduser=True)
@property
def homedir(self):
return str(self._homedir)
@homedir.setter
def homedir(self, path):
self._homedir = py.path.local(path, expanduser=True)
def _target_to_name(self, target):
return py.path.local("%s/.%s" % (self.homedir, target.basename))
def _load(self):
"""Given a repository path, discover all existing dotfiles."""
dotfiles = []
self._repodir.ensure(dir=1)
targets = self._repodir.listdir()
for target in targets:
target = py.path.local(target)
name = self._target_to_name(target)
dotfiles.append(Dotfile(name, target))
return sorted(dotfiles, key=attrgetter('name'))
def _contents(self, all=True):
"""Convert loaded contents to human readable form."""
contents = ''
dotfiles = self._load()
for dotfile in dotfiles:
if all or dotfile.invalid():
contents += '\n%s' % dotfile
return contents.lstrip()
def status(self):
"""Returns a string list of all dotfiles."""
return str(self)
def check(self):
"""Returns a string list of only unsynced or missing dotfiles."""
return self._contents(all=False)
def sync(self):
raise NotImplementedError
def unsync(self):
raise NotImplementedError
def add(self):
raise NotImplementedError
def remove(self):
raise NotImplementedError
def move(self):
raise NotImplementedError
|
