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authorJohn Snow2022-01-11 00:28:54 +0100
committerJohn Snow2022-01-21 22:01:31 +0100
commit0347c4c4cfed47e54d9dc275ceb28d35b250749f (patch)
tree530f7362f47b1c371fa488595d09dc8198e26cbe /python/qemu/qmp/qom_fuse.py
parentpython/qmp: switch qmp-shell to AQMP (diff)
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python: move qmp utilities to python/qemu/utils
In order to upload a QMP package to PyPI, I want to remove any scripts that I am not 100% confident I want to support upstream, beyond our castle walls. Move most of our QMP utilities into the utils package so we can split them out from the PyPI upload. Signed-off-by: John Snow <jsnow@redhat.com> Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Reviewed-by: Beraldo Leal <bleal@redhat.com>
Diffstat (limited to 'python/qemu/qmp/qom_fuse.py')
-rw-r--r--python/qemu/qmp/qom_fuse.py207
1 files changed, 0 insertions, 207 deletions
diff --git a/python/qemu/qmp/qom_fuse.py b/python/qemu/qmp/qom_fuse.py
deleted file mode 100644
index 653a76b93b..0000000000
--- a/python/qemu/qmp/qom_fuse.py
+++ /dev/null
@@ -1,207 +0,0 @@
-"""
-QEMU Object Model FUSE filesystem tool
-
-This script offers a simple FUSE filesystem within which the QOM tree
-may be browsed, queried and edited using traditional shell tooling.
-
-This script requires the 'fusepy' python package.
-
-
-usage: qom-fuse [-h] [--socket SOCKET] <mount>
-
-Mount a QOM tree as a FUSE filesystem
-
-positional arguments:
- <mount> Mount point
-
-optional arguments:
- -h, --help show this help message and exit
- --socket SOCKET, -s SOCKET
- QMP socket path or address (addr:port). May also be
- set via QMP_SOCKET environment variable.
-"""
-##
-# Copyright IBM, Corp. 2012
-# Copyright (C) 2020 Red Hat, Inc.
-#
-# Authors:
-# Anthony Liguori <aliguori@us.ibm.com>
-# Markus Armbruster <armbru@redhat.com>
-#
-# This work is licensed under the terms of the GNU GPL, version 2 or later.
-# See the COPYING file in the top-level directory.
-##
-
-import argparse
-from errno import ENOENT, EPERM
-import stat
-import sys
-from typing import (
- IO,
- Dict,
- Iterator,
- Mapping,
- Optional,
- Union,
-)
-
-import fuse
-from fuse import FUSE, FuseOSError, Operations
-
-from qemu.aqmp import ExecuteError
-
-from .qom_common import QOMCommand
-
-
-fuse.fuse_python_api = (0, 2)
-
-
-class QOMFuse(QOMCommand, Operations):
- """
- QOMFuse implements both fuse.Operations and QOMCommand.
-
- Operations implements the FS, and QOMCommand implements the CLI command.
- """
- name = 'fuse'
- help = 'Mount a QOM tree as a FUSE filesystem'
- fuse: FUSE
-
- @classmethod
- def configure_parser(cls, parser: argparse.ArgumentParser) -> None:
- super().configure_parser(parser)
- parser.add_argument(
- 'mount',
- metavar='<mount>',
- action='store',
- help="Mount point",
- )
-
- def __init__(self, args: argparse.Namespace):
- super().__init__(args)
- self.mount = args.mount
- self.ino_map: Dict[str, int] = {}
- self.ino_count = 1
-
- def run(self) -> int:
- print(f"Mounting QOMFS to '{self.mount}'", file=sys.stderr)
- self.fuse = FUSE(self, self.mount, foreground=True)
- return 0
-
- def get_ino(self, path: str) -> int:
- """Get an inode number for a given QOM path."""
- if path in self.ino_map:
- return self.ino_map[path]
- self.ino_map[path] = self.ino_count
- self.ino_count += 1
- return self.ino_map[path]
-
- def is_object(self, path: str) -> bool:
- """Is the given QOM path an object?"""
- try:
- self.qom_list(path)
- return True
- except ExecuteError:
- return False
-
- def is_property(self, path: str) -> bool:
- """Is the given QOM path a property?"""
- path, prop = path.rsplit('/', 1)
- if path == '':
- path = '/'
- try:
- for item in self.qom_list(path):
- if item.name == prop:
- return True
- return False
- except ExecuteError:
- return False
-
- def is_link(self, path: str) -> bool:
- """Is the given QOM path a link?"""
- path, prop = path.rsplit('/', 1)
- if path == '':
- path = '/'
- try:
- for item in self.qom_list(path):
- if item.name == prop and item.link:
- return True
- return False
- except ExecuteError:
- return False
-
- def read(self, path: str, size: int, offset: int, fh: IO[bytes]) -> bytes:
- if not self.is_property(path):
- raise FuseOSError(ENOENT)
-
- path, prop = path.rsplit('/', 1)
- if path == '':
- path = '/'
- try:
- data = str(self.qmp.command('qom-get', path=path, property=prop))
- data += '\n' # make values shell friendly
- except ExecuteError as err:
- raise FuseOSError(EPERM) from err
-
- if offset > len(data):
- return b''
-
- return bytes(data[offset:][:size], encoding='utf-8')
-
- def readlink(self, path: str) -> Union[bool, str]:
- if not self.is_link(path):
- return False
- path, prop = path.rsplit('/', 1)
- prefix = '/'.join(['..'] * (len(path.split('/')) - 1))
- return prefix + str(self.qmp.command('qom-get', path=path,
- property=prop))
-
- def getattr(self, path: str,
- fh: Optional[IO[bytes]] = None) -> Mapping[str, object]:
- if self.is_link(path):
- value = {
- 'st_mode': 0o755 | stat.S_IFLNK,
- 'st_ino': self.get_ino(path),
- 'st_dev': 0,
- 'st_nlink': 2,
- 'st_uid': 1000,
- 'st_gid': 1000,
- 'st_size': 4096,
- 'st_atime': 0,
- 'st_mtime': 0,
- 'st_ctime': 0
- }
- elif self.is_object(path):
- value = {
- 'st_mode': 0o755 | stat.S_IFDIR,
- 'st_ino': self.get_ino(path),
- 'st_dev': 0,
- 'st_nlink': 2,
- 'st_uid': 1000,
- 'st_gid': 1000,
- 'st_size': 4096,
- 'st_atime': 0,
- 'st_mtime': 0,
- 'st_ctime': 0
- }
- elif self.is_property(path):
- value = {
- 'st_mode': 0o644 | stat.S_IFREG,
- 'st_ino': self.get_ino(path),
- 'st_dev': 0,
- 'st_nlink': 1,
- 'st_uid': 1000,
- 'st_gid': 1000,
- 'st_size': 4096,
- 'st_atime': 0,
- 'st_mtime': 0,
- 'st_ctime': 0
- }
- else:
- raise FuseOSError(ENOENT)
- return value
-
- def readdir(self, path: str, fh: IO[bytes]) -> Iterator[str]:
- yield '.'
- yield '..'
- for item in self.qom_list(path):
- yield item.name