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| Dir : //proc/self/root/opt/saltstack/salt/lib/python3.10/site-packages/salt/utils/fsutils.py |
"""
Run-time utilities
"""
#
# Copyright (C) 2014 SUSE LLC
import logging
import os
import re
import salt.utils.files
from salt.exceptions import CommandExecutionError
log = logging.getLogger(__name__)
def _verify_run(out, cmd=None):
"""
Crash to the log if command execution was not successful.
"""
if out.get("retcode", 0) and out["stderr"]:
if cmd:
log.debug("Command: '%s'", cmd)
log.debug("Return code: %s", out.get("retcode"))
log.debug("Error output:\n%s", out.get("stderr", "N/A"))
raise CommandExecutionError(out["stderr"])
def _get_mounts(fs_type=None):
"""
List mounted filesystems.
"""
mounts = {}
with salt.utils.files.fopen("/proc/mounts") as fhr:
for line in fhr.readlines():
line = salt.utils.stringutils.to_unicode(line)
device, mntpnt, fstype, options, fs_freq, fs_passno = line.strip().split(
" "
)
if fs_type and fstype != fs_type:
continue
if mounts.get(device) is None:
mounts[device] = []
data = {"mount_point": mntpnt, "options": options.split(",")}
if not fs_type:
data["type"] = fstype
mounts[device].append(data)
return mounts
# TODO: Due to "blkid -o export" strongly differs from system to system, this must go away in favor of _blkid() below!
def _blkid_output(out, fs_type=None):
"""
Parse blkid output.
"""
def flt(data):
return [el for el in data if el.strip()]
data = {}
for dev_meta in flt(out.split("\n\n")):
dev = {}
for items in flt(dev_meta.strip().split("\n")):
key, val = items.split("=", 1)
dev[key.lower()] = val
if fs_type and dev.get("type", "") == fs_type or not fs_type:
if "type" in dev and fs_type:
dev.pop("type")
data[dev.pop("devname")] = dev
if fs_type:
mounts = _get_mounts(fs_type)
for device in mounts:
if data.get(device):
data[device]["mounts"] = mounts[device]
return data
def _blkid(fs_type=None):
"""
Return available media devices.
:param fs_type: Filter only devices that are formatted by that file system.
"""
def flt(data):
return [el for el in data if el.strip()]
data = dict()
for dev_meta in flt(
os.popen("blkid -o full").read().split(os.linesep)
): # No __salt__ around at this point.
dev_meta = dev_meta.strip()
if not dev_meta:
continue
device = dev_meta.split(" ")
dev_name = device.pop(0)[:-1]
data[dev_name] = dict()
for k_set in device:
ks_key, ks_value = (elm.replace('"', "") for elm in k_set.split("="))
data[dev_name][ks_key.lower()] = ks_value
if fs_type:
mounts = _get_mounts(fs_type)
for device in mounts:
if data.get(device):
data[device]["mounts"] = mounts[device]
return data
def _is_device(path):
"""
Return True if path is a physical device.
"""
out = __salt__["cmd.run_all"](f"file -i {path}")
_verify_run(out)
# Always [device, mime, charset]. See (file --help)
return re.split(r"\s+", out["stdout"])[1][:-1] == "inode/blockdevice"