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Initial upload of HyprArch releng configuration

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Mitsuba100
2026-03-03 20:31:33 +00:00
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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
#
# === This file is part of Calamares - <https://calamares.io> ===
#
# SPDX-FileCopyrightText: 2014 Aurélien Gâteau <agateau@kde.org>
# SPDX-FileCopyrightText: 2017 Alf Gaida <agaida@siduction.org>
# SPDX-FileCopyrightText: 2019 Adriaan de Groot <groot@kde.org>
# SPDX-FileCopyrightText: 2019 Kevin Kofler <kevin.kofler@chello.at>
# SPDX-FileCopyrightText: 2019-2020 Collabora Ltd
# SPDX-License-Identifier: GPL-3.0-or-later
#
# Calamares is Free Software: see the License-Identifier above.
#
import tempfile
import subprocess
import os
import re
import libcalamares
import gettext
_ = gettext.translation("calamares-python",
localedir=libcalamares.utils.gettext_path(),
languages=libcalamares.utils.gettext_languages(),
fallback=True).gettext
class ZfsException(Exception):
"""Exception raised when there is a problem with zfs
Attributes:
message -- explanation of the error
"""
def __init__(self, message):
self.message = message
def pretty_name():
return _("Mounting partitions.")
def disk_name_for_partition(partition):
""" Returns disk name for each found partition.
:param partition:
:return:
"""
name = os.path.basename(partition["device"])
if name.startswith("/dev/mmcblk") or name.startswith("/dev/nvme"):
return re.sub("p[0-9]+$", "", name)
return re.sub("[0-9]+$", "", name)
def is_ssd_disk(partition):
""" Checks if given partition is on an ssd disk.
:param partition: A dict containing the partition information
:return: True is the partition in on an ssd, False otherwise
"""
try:
disk_name = disk_name_for_partition(partition)
filename = os.path.join("/sys/block", disk_name, "queue/rotational")
with open(filename) as sysfile:
return sysfile.read() == "0\n"
except:
return False
def get_mount_options(filesystem, mount_options, partition, efi_location = None):
"""
Returns the mount options for the partition object and filesystem
:param filesystem: A string containing the filesystem
:param mount_options: A list of dicts that descripes the mount options for each mountpoint
:param partition: A dict containing information about the partition
:param efi_location: A string holding the location of the EFI partition or None
:return: A comma seperated string containing the mount options suitable for passing to mount
"""
# Extra mounts can optionally have "options" set, in this case, they override other all other settings
if "options" in partition:
return ",".join(partition["options"])
# If there are no mount options defined then we use the defaults
if mount_options is None:
return "defaults"
# The EFI partition uses special mounting options
if efi_location and partition["mountPoint"] == efi_location:
effective_filesystem = "efi"
else:
effective_filesystem = filesystem
options = next((x for x in mount_options if x["filesystem"] == effective_filesystem), None)
# If there is no match then check for default options
if options is None:
options = next((x for x in mount_options if x["filesystem"] == "default"), None)
# If it is still None, then fallback to returning defaults
if options is None:
return "defaults"
option_items = options.get("options", []).copy()
# Append the appropriate options for ssd or hdd if set
if is_ssd_disk(partition):
option_items.extend(options.get("ssdOptions", []))
else:
option_items.extend(options.get("hddOptions", []))
if option_items:
return ",".join(option_items)
else:
return "defaults"
def get_btrfs_subvolumes(partitions):
"""
Gets the job-configuration for btrfs subvolumes, or if there is
none given, returns a default configuration that matches
the setup (/ and /home) from before configurability was introduced.
@param partitions
The partitions (from the partitioning module) that will exist on disk.
This is used to filter out subvolumes that don't need to be created
because they get a dedicated partition instead.
"""
btrfs_subvolumes = libcalamares.job.configuration.get("btrfsSubvolumes", None)
# Warn if there's no configuration at all, and empty configurations are
# replaced by a simple root-only layout.
if btrfs_subvolumes is None:
libcalamares.utils.warning("No configuration for btrfsSubvolumes")
if not btrfs_subvolumes:
btrfs_subvolumes = [dict(mountPoint="/", subvolume="/@"), dict(mountPoint="/home", subvolume="/@home")]
# Filter out the subvolumes which have a dedicated partition
non_root_partition_mounts = [m for m in [p.get("mountPoint", None) for p in partitions] if
m is not None and m != '/']
btrfs_subvolumes = list(filter(lambda s: s["mountPoint"] not in non_root_partition_mounts, btrfs_subvolumes))
# If we have a swap **file**, give it a separate subvolume.
swap_choice = libcalamares.globalstorage.value("partitionChoices")
if swap_choice and swap_choice.get("swap", None) == "file":
swap_subvol = libcalamares.job.configuration.get("btrfsSwapSubvol", "/@swap")
btrfs_subvolumes.append({'mountPoint': '/swap', 'subvolume': swap_subvol})
libcalamares.globalstorage.insert("btrfsSwapSubvol", swap_subvol)
return btrfs_subvolumes
def mount_zfs(root_mount_point, partition):
""" Mounts a zfs partition at @p root_mount_point
:param root_mount_point: The absolute path to the root of the install
:param partition: The partition map from global storage for this partition
:return:
"""
# Get the list of zpools from global storage
zfs_pool_list = libcalamares.globalstorage.value("zfsPoolInfo")
if not zfs_pool_list:
libcalamares.utils.warning("Failed to locate zfsPoolInfo data in global storage")
raise ZfsException(_("Internal error mounting zfs datasets"))
# Find the zpool matching this partition
for zfs_pool in zfs_pool_list:
if zfs_pool["mountpoint"] == partition["mountPoint"]:
pool_name = zfs_pool["poolName"]
ds_name = zfs_pool["dsName"]
# import the zpool
try:
libcalamares.utils.host_env_process_output(["zpool", "import", "-N", "-R", root_mount_point, pool_name], None)
except subprocess.CalledProcessError:
raise ZfsException(_("Failed to import zpool"))
# Get the encrpytion information from global storage
zfs_info_list = libcalamares.globalstorage.value("zfsInfo")
encrypt = False
if zfs_info_list:
for zfs_info in zfs_info_list:
if zfs_info["mountpoint"] == partition["mountPoint"] and zfs_info["encrypted"] is True:
encrypt = True
passphrase = zfs_info["passphrase"]
if encrypt is True:
# The zpool is encrypted, we need to unlock it
try:
libcalamares.utils.host_env_process_output(["zfs", "load-key", pool_name], None, passphrase)
except subprocess.CalledProcessError:
raise ZfsException(_("Failed to unlock zpool"))
if partition["mountPoint"] == '/':
# Get the zfs dataset list from global storage
zfs = libcalamares.globalstorage.value("zfsDatasets")
if not zfs:
libcalamares.utils.warning("Failed to locate zfs dataset list")
raise ZfsException(_("Internal error mounting zfs datasets"))
zfs.sort(key=lambda x: x["mountpoint"])
for dataset in zfs:
try:
if dataset["canMount"] == "noauto" or dataset["canMount"] is True:
libcalamares.utils.host_env_process_output(["zfs", "mount",
dataset["zpool"] + '/' + dataset["dsName"]])
except subprocess.CalledProcessError:
raise ZfsException(_("Failed to set zfs mountpoint"))
else:
try:
libcalamares.utils.host_env_process_output(["zfs", "mount", pool_name + '/' + ds_name])
except subprocess.CalledProcessError:
raise ZfsException(_("Failed to set zfs mountpoint"))
def mount_partition(root_mount_point, partition, partitions, mount_options, mount_options_list, efi_location):
"""
Do a single mount of @p partition inside @p root_mount_point.
:param root_mount_point: A string containing the root of the install
:param partition: A dict containing information about the partition
:param partitions: The full list of partitions used to filter out btrfs subvols which have duplicate mountpoints
:param mount_options: The mount options from the config file
:param mount_options_list: A list of options for each mountpoint to be placed in global storage for future modules
:param efi_location: A string holding the location of the EFI partition or None
:return:
"""
# Create mount point with `+` rather than `os.path.join()` because
# `partition["mountPoint"]` starts with a '/'.
raw_mount_point = partition["mountPoint"]
if not raw_mount_point:
return
mount_point = root_mount_point + raw_mount_point
# Ensure that the created directory has the correct SELinux context on
# SELinux-enabled systems.
os.makedirs(mount_point, exist_ok=True)
try:
subprocess.call(['chcon', '--reference=' + raw_mount_point, mount_point])
except FileNotFoundError as e:
libcalamares.utils.warning(str(e))
except OSError:
libcalamares.utils.error("Cannot run 'chcon' normally.")
raise
fstype = partition.get("fs", "").lower()
if fstype == "unformatted":
return
if fstype == "fat16" or fstype == "fat32":
fstype = "vfat"
device = partition["device"]
if "luksMapperName" in partition:
device = os.path.join("/dev/mapper", partition["luksMapperName"])
if fstype == "zfs":
mount_zfs(root_mount_point, partition)
else: # fstype == "zfs"
mount_options_string = get_mount_options(fstype, mount_options, partition, efi_location)
if libcalamares.utils.mount(device,
mount_point,
fstype,
mount_options_string) != 0:
libcalamares.utils.warning("Cannot mount {}".format(device))
mount_options_list.append({"mountpoint": raw_mount_point, "option_string": mount_options_string})
# Special handling for btrfs subvolumes. Create the subvolumes listed in mount.conf
if fstype == "btrfs" and partition["mountPoint"] == '/':
# Root has been mounted to btrfs volume -> create subvolumes from configuration
btrfs_subvolumes = get_btrfs_subvolumes(partitions)
# Store created list in global storage so it can be used in the fstab module
libcalamares.globalstorage.insert("btrfsSubvolumes", btrfs_subvolumes)
# Create the subvolumes that are in the completed list
for s in btrfs_subvolumes:
if not s["subvolume"]:
continue
os.makedirs(root_mount_point + os.path.dirname(s["subvolume"]), exist_ok=True)
subprocess.check_call(["btrfs", "subvolume", "create",
root_mount_point + s["subvolume"]])
if s["mountPoint"] == "/":
# insert the root subvolume into global storage
libcalamares.globalstorage.insert("btrfsRootSubvolume", s["subvolume"])
subprocess.check_call(["umount", "-v", root_mount_point])
device = partition["device"]
if "luksMapperName" in partition:
device = os.path.join("/dev/mapper", partition["luksMapperName"])
# Mount the subvolumes
swap_subvol = libcalamares.job.configuration.get("btrfsSwapSubvol", "/@swap")
for s in btrfs_subvolumes:
if s['subvolume'] == swap_subvol:
mount_option_no_subvol = get_mount_options("btrfs_swap", mount_options, partition)
else:
mount_option_no_subvol = get_mount_options(fstype, mount_options, partition)
# Only add subvol= argument if we are not mounting the entire filesystem
if s['subvolume']:
mount_option = f"subvol={s['subvolume']},{mount_option_no_subvol}"
else:
mount_option = mount_option_no_subvol
subvolume_mountpoint = mount_point[:-1] + s['mountPoint']
mount_options_list.append({"mountpoint": s['mountPoint'], "option_string": mount_option_no_subvol})
if libcalamares.utils.mount(device,
subvolume_mountpoint,
fstype,
mount_option) != 0:
libcalamares.utils.warning("Cannot mount {}".format(device))
def enable_swap_partition(devices):
try:
for d in devices:
libcalamares.utils.host_env_process_output(["swapon", d])
except subprocess.CalledProcessError:
libcalamares.utils.warning(f"Failed to enable swap for devices: {devices}")
def run():
"""
Mount all the partitions from GlobalStorage and from the job configuration.
Partitions are mounted in-lexical-order of their mountPoint.
"""
partitions = libcalamares.globalstorage.value("partitions")
if not partitions:
libcalamares.utils.warning("partitions is empty, {!s}".format(partitions))
return (_("Configuration Error"),
_("No partitions are defined for <pre>{!s}</pre> to use.").format("mount"))
# Find existing swap partitions that are part of the installation and enable them now
claimed_swap_partitions = [p for p in partitions if p["fs"] == "linuxswap" and p.get("claimed", False)]
plain_swap = [p for p in claimed_swap_partitions if p["fsName"] == "linuxswap"]
luks_swap = [p for p in claimed_swap_partitions if p["fsName"] == "luks" or p["fsName"] == "luks2"]
swap_devices = [p["device"] for p in plain_swap] + ["/dev/mapper/" + p["luksMapperName"] for p in luks_swap]
enable_swap_partition(swap_devices)
root_mount_point = tempfile.mkdtemp(prefix="calamares-root-")
# Get the mountOptions, if this is None, that is OK and will be handled later
mount_options = libcalamares.job.configuration.get("mountOptions")
# Guard against missing keys (generally a sign that the config file is bad)
extra_mounts = libcalamares.job.configuration.get("extraMounts") or []
if not extra_mounts:
libcalamares.utils.warning("No extra mounts defined. Does mount.conf exist?")
efi_location = None
if libcalamares.globalstorage.value("firmwareType") == "efi":
efi_location = libcalamares.globalstorage.value("efiSystemPartition")
else:
for mount in extra_mounts:
if mount.get("efi", None) is True:
extra_mounts.remove(mount)
# Add extra mounts to the partitions list and sort by mount points.
# This way, we ensure / is mounted before the rest, and every mount point
# is created on the right partition (e.g. if a partition is to be mounted
# under /tmp, we make sure /tmp is mounted before the partition)
mountable_partitions = [p for p in partitions + extra_mounts if "mountPoint" in p and p["mountPoint"]]
mountable_partitions.sort(key=lambda x: x["mountPoint"])
# mount_options_list will be inserted into global storage for use in fstab later
mount_options_list = []
try:
for partition in mountable_partitions:
mount_partition(root_mount_point, partition, partitions, mount_options, mount_options_list, efi_location)
except ZfsException as ze:
return _("zfs mounting error"), ze.message
if not mount_options_list:
libcalamares.utils.warning("No mount options defined, {!s} partitions, {!s} mountable".format(len(partitions), len(mountable_partitions)))
libcalamares.globalstorage.insert("rootMountPoint", root_mount_point)
libcalamares.globalstorage.insert("mountOptionsList", mount_options_list)
# Remember the extra mounts for the unpackfs module
libcalamares.globalstorage.insert("extraMounts", extra_mounts)