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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,115 @@ | ||
| from collections.abc import Generator | ||
| from typing import Dict, List | ||
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| import psutil | ||
| import pyarchitecture | ||
| from psutil._common import sdiskpart | ||
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| from .config import EnvConfig | ||
| from .logger import LOGGER | ||
| from .models import SystemPartitions | ||
| from .util import size_converter | ||
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| def get_partitions() -> Generator[sdiskpart]: | ||
| """Gathers disk information using the 'psutil' library. | ||
| Yields: | ||
| sdiskpart: | ||
| Yields the partition datastructure. | ||
| """ | ||
| system_partitions = SystemPartitions() | ||
| for partition in psutil.disk_partitions(): | ||
| is_not_system_mount = all( | ||
| not partition.mountpoint.startswith(mnt) | ||
| for mnt in system_partitions.system_mountpoints | ||
| ) | ||
| is_not_system_fstype = partition.fstype not in system_partitions.system_fstypes | ||
| is_not_recovery = "Recovery" not in partition.mountpoint | ||
| if is_not_system_mount and is_not_system_fstype and is_not_recovery: | ||
| yield partition | ||
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| def get_io_counters() -> Generator[str]: | ||
| """Gathers disk IO counters using the 'psutil' library, which have non-zero write count. | ||
| Yields: | ||
| str: | ||
| Yields the disk id. | ||
| """ | ||
| for disk_id, disk_io in psutil.disk_io_counters(perdisk=True).items(): | ||
| if min(disk_io.write_bytes, disk_io.write_count, disk_io.write_time) != 0: | ||
| yield disk_id | ||
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| def get_disk_io() -> Generator[Dict[str, str | List[str]]]: | ||
| """Gathers disk IO counters using the 'psutil' library to construct a disk data. | ||
| Yields: | ||
| Dict[str, str | List[str]]: | ||
| Yields the disk data as key-value pairs. | ||
| """ | ||
| if physical_disks := list(get_io_counters()): | ||
| # If there is only one physical disk, then set the mountpoint to root (/) | ||
| if len(physical_disks) == 1: | ||
| yield dict( | ||
| size=size_converter(psutil.disk_usage("/").total), | ||
| device_id=physical_disks[0], | ||
| node=f"/dev/{physical_disks[0]}", | ||
| mountpoints=["/"], | ||
| ) | ||
| else: | ||
| # If there are multiple physical disks, then set the mountpoint to disk path itself | ||
| for physical_disk in physical_disks: | ||
| yield dict( | ||
| size=size_converter(psutil.disk_usage("/").total), | ||
| device_id=physical_disk, | ||
| node=f"/dev/{physical_disk}", | ||
| mountpoints=[f"/dev/{physical_disk}"], | ||
| ) | ||
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| def partitions() -> Generator[Dict[str, str | List[str]]]: | ||
| """Gathers disk partitions using the 'psutil' library. | ||
| Yields: | ||
| Dict[str, str | List[str]]: | ||
| Yields the disk data as key-value pairs. | ||
| """ | ||
| for partition in get_partitions(): | ||
| yield dict( | ||
| size=size_converter(psutil.disk_usage(partition.mountpoint).total), | ||
| device_id=partition.device.lstrip("/dev/"), | ||
| node=partition.device, | ||
| mountpoints=[partition.device], | ||
| ) | ||
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| def get_disk_data(env: EnvConfig, posix: bool) -> List[Dict[str, str | List[str]]]: | ||
| """Get disk information for macOS and Windows machines. | ||
| Args: | ||
| env: Environment variables configuration. | ||
| posix: If the operating system is POSIX compliant. | ||
| Returns: | ||
| List[Dict[str, str | List[str]]]: | ||
| Returns a list of dictionaries with device information as key-value pairs. | ||
| """ | ||
| if posix: | ||
| # 1: Attempt to extract physical disks from PyArchitecture | ||
| if pyarch := pyarchitecture.disks.get_all_disks(env.disk_lib): | ||
| return pyarch | ||
| # 2: Assume disks with non-zero write count as physical disks | ||
| # disk_io_counters fn will fetch disks rather than partitions (similar to output from 'diskutil list') | ||
| LOGGER.warning("Failed to load physical disk data") | ||
| if disk_io := list(get_disk_io()): | ||
| return disk_io | ||
| # The accuracy of methods 2, and 3 are questionable (for macOS) - it may vary from device to device | ||
| LOGGER.warning( | ||
| "No physical disks found through IO counters, using partitions instead" | ||
| ) | ||
| # 3. If both the methods fail, then fallback to disk partitions | ||
| # For Windows, this is the only option since smartctl doesn't work for physical drive name | ||
| # Information is retrieved using the drive letter (C:, D:, etc.) | ||
| return list(partitions()) |
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