def __init__(self):
self.vdb = VertexDb()
class VertexDbFs(LoggingMixIn, Operations):
def __init__(self):
self.vdb = VertexDb()
def getattr(self, path, fh):
now = time() # FIXME:
uid = pwd.getpwuid(os.getuid()).pw_uid
gid = pwd.getpwuid(os.getuid()).pw_gid
if self.vdb.is_dir(path):
try:
size = self.vdb.size(path)
except:
raise OSError(ENOENT, "")
if platform.system() == "Darwin":
st_nlink = size
elif platform.system() == "Linux":
st_nlink = size + 2
return dict(st_mode=(S_IFDIR|0766), st_ctime=now, st_mtime=now, st_atime=now, st_nlink=st_nlink, st_uid=uid, st_gid=gid)
else:
try:
data = self.vdb.read(path)
except:
raise OSError(ENOENT, "")
if data == "null":
raise OSError(ENOENT, "")
return dict(st_mode=(S_IFREG|0666), st_size=len(data), st_ctime=now, st_mtime=now, st_atime=now, st_nlink=1, st_uid=uid, st_gid=gid)
def open(self, path, flags):
# Create file if needed.
if not self.vdb.exists(path):
if(flags & os.O_CREAT) == os.O_CREAT:
self.vdb.mknod(path)
else:
raise OSError(ENOENT, "")
return 0
def access(self, path, amode):
return 0
def truncate(self, path, length, fh=None):
return 0
def readdir(self, path, fh):
keys = self.vdb.keys(path)
return [".", ".."] + keys
def read(self, path, size, offset, fh):
data = self.vdb.read(path)
if offset+size > len(data):
size = len(data) - offset
return data[offset:offset+size]
def write(self, path, data, offset, fh):
w = data.split("\n")[0]
self.vdb.write2(path, w)
return len(data)
# ??
def mknod(self, path, mode, dev):
self.vdb.mknod(path)
return 0
# ??
def create(self, path, mode):
self.mknod(path, mode, None)
return 0
def mkdir(self, path, mode):
self.vdb.mkdir(path)
def rmdir(self, path):
st_nlink = self.getattr(path, None)["st_nlink"]
if st_nlink == 0 and platform.system() == "Darwin":
raise OSError(EROFS, "")
if st_nlink == 2 and platform.system() == "Linux":
raise OSError(EROFS, "")
self.vdb.rm(path)
return 0
def unlink(self, path):
self.vdb.rm(path)
return 0
