84 lines
2.2 KiB
Python
84 lines
2.2 KiB
Python
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import os, stat, errno, fuse
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from pathlib import Path
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from collections.abc import Iterator
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from .favro_client import FavroClient
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fuse.fuse_python_api = (0, 2)
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hello_path = '/hello'
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hello_str = b'Hello World!\n'
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class MyStat(fuse.Stat):
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def __init__(self):
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self.st_mode = 0
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self.st_ino = 0
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self.st_dev = 0
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self.st_nlink = 0
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self.st_uid = 0
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self.st_gid = 0
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self.st_size = 0
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self.st_atime = 0
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self.st_mtime = 0
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self.st_ctime = 0
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class FavroFuse(fuse.Fuse):
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def __init__(self, favro_client: FavroClient, **kwargs):
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self.favro_client = favro_client
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super().__init__(**kwargs)
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def getattr(self, path: str) -> MyStat | int:
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st = MyStat()
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if path == '/':
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st.st_mode = stat.S_IFDIR | 0o755
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st.st_nlink = 2
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elif path == hello_path:
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st.st_mode = stat.S_IFREG | 0o444
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st.st_nlink = 1
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st.st_size = len(hello_str)
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else:
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return -errno.ENOENT
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return st
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def readdir(self, path: str, offset: int) -> Iterator[fuse.Direntry]:
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yield fuse.Direntry('.')
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yield fuse.Direntry('..')
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for card in self.favro_client.get_todo_list_cards():
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yield fuse.Direntry(card.seqid_with_prefix)
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def open(self, path: str, flags) -> int:
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if path != hello_path:
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return -errno.ENOENT
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accmode = os.O_RDONLY | os.O_WRONLY | os.O_RDWR
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if (flags & accmode) != os.O_RDONLY:
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return -errno.EACCES
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def read(self, path: str, size: int, offset: int) -> bytes | int:
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if path != hello_path:
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return -errno.ENOENT
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slen = len(hello_str)
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if offset < slen:
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if offset + size > slen:
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size = slen - offset
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buf = hello_str[offset:offset+size]
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else:
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buf = b''
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return buf
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HELP="""
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Userspace hello example
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""" + fuse.Fuse.fusage
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def start_favro_fuse(favro_client: FavroClient):
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# TODO:
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server = FavroFuse(
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favro_client = favro_client,
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version='%prog ' + fuse.__version__,
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usage=HELP,
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dash_s_do='setsingle')
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server.parse(errex=1)
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server.main()
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