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"""A class for remote svn repos"""
from subprocess import run
from pomu.repo.remote import RemoteRepo, normalize_key
from pomu.util.result import Result
class RemoteSvnRepo(RemoteRepo):
"""A class responsible for svn remotes"""
def __init__(self, url):
self.uri = uri
def __enter__(self):
pass
def __exit__(self, *_):
pass
def fetch_tree(self):
"""Returns repos hierarchy"""
if hasattr(self, '_tree'):
return self._tree
p = run('svn', 'ls', '-R', self.uri)
if p.returncode:
return []
self._tree = p.stdout.split('\n')
return self._tree
def fetch_subtree(self, key):
"""Lists a subtree"""
k = normalize_key(key, True)
self.fetch_tree()
dic = dict(self._tree)
if k not in dic:
return Result.Err()
l = len(key)
return Result.Ok(
[tpath[l:] for tpath in self.fetch_tree() if tpath.startswith(k)])
def fetch_file(self, key):
"""Fetches a file from the repo"""
k = normalize_key(key)
self.fetch_tree()
dic = dict(self._tree)
if k not in dic:
return Result.Err()
p = run('svn', 'cat', k)
if p.returncode:
return Result.Err()
return Result.Ok(p.stdout)
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