@@ -1,17 +1,16 @@
-SUMMARY = "Wrapper for enabling systemd services"
+SUMMARY = "Systemctl executable from systemd"
-LICENSE = "MIT"
-LIC_FILES_CHKSUM = "file://${COREBASE}/meta/COPYING.MIT;md5=3da9cfbcb788c80a0384361b4de20420"
+require systemd.inc
+DEPENDS = "gperf-native libcap-native util-linux-native python3-jinja2-native"
-inherit native
+inherit pkgconfig meson native
-SRC_URI = "file://systemctl"
+MESON_TARGET = "systemctl:executable"
+MESON_INSTALL_TAGS = "systemctl"
+EXTRA_OEMESON:append = " -Dlink-systemctl-shared=false"
-S = "${WORKDIR}/sources"
-UNPACKDIR = "${S}"
-
-do_install() {
- install -d ${D}${bindir}
- install -m 0755 ${S}/systemctl ${D}${bindir}
-}
+# Systemctl is supposed to operate on target, but the target sysroot is not
+# determined at run-time, but rather set during configure
+# More details are here https://github.com/systemd/systemd/issues/35897#issuecomment-2665405887
+EXTRA_OEMESON:append = " --sysconfdir ${sysconfdir_native}"
deleted file mode 100755
@@ -1,376 +0,0 @@
-#!/usr/bin/env python3
-"""systemctl: subset of systemctl used for image construction
-
-Mask/preset systemd units
-"""
-
-import argparse
-import fnmatch
-import os
-import re
-import sys
-
-from collections import namedtuple
-from itertools import chain
-from pathlib import Path
-
-version = 1.0
-
-ROOT = Path("/")
-SYSCONFDIR = Path("etc")
-BASE_LIBDIR = Path("lib")
-LIBDIR = Path("usr", "lib")
-
-locations = list()
-
-
-class SystemdFile():
- """Class representing a single systemd configuration file"""
-
- _clearable_keys = ['WantedBy']
-
- def __init__(self, root, path, instance_unit_name, unit_type):
- self.sections = dict()
- self._parse(root, path)
- dirname = os.path.basename(path.name) + ".d"
- for location in locations:
- files = (root / location / unit_type / dirname).glob("*.conf")
- if instance_unit_name:
- inst_dirname = instance_unit_name + ".d"
- files = chain(files, (root / location / unit_type / inst_dirname).glob("*.conf"))
- for path2 in sorted(files):
- self._parse(root, path2)
-
- def _parse(self, root, path):
- """Parse a systemd syntax configuration file
-
- Args:
- path: A pathlib.Path object pointing to the file
-
- """
- skip_re = re.compile(r"^\s*([#;]|$)")
- section_re = re.compile(r"^\s*\[(?P<section>.*)\]")
- kv_re = re.compile(r"^\s*(?P<key>[^\s]+)\s*=\s*(?P<value>.*)")
- section = None
-
- if path.is_symlink():
- try:
- path.resolve()
- except FileNotFoundError:
- # broken symlink, try relative to root
- path = root / Path(os.readlink(str(path))).relative_to(ROOT)
-
- with path.open() as f:
- for line in f:
- if skip_re.match(line):
- continue
-
- line = line.strip()
- m = section_re.match(line)
- if m:
- if m.group('section') not in self.sections:
- section = dict()
- self.sections[m.group('section')] = section
- else:
- section = self.sections[m.group('section')]
- continue
-
- while line.endswith("\\"):
- line += f.readline().rstrip("\n")
-
- m = kv_re.match(line)
- k = m.group('key')
- v = m.group('value')
- if k not in section:
- section[k] = list()
-
- # If we come across a "key=" line for a "clearable key", then
- # forget all preceding assignments. This works because we are
- # processing files in correct parse order.
- if k in self._clearable_keys and not v:
- del section[k]
- continue
-
- section[k].extend(v.split())
-
- def get(self, section, prop):
- """Get a property from section
-
- Args:
- section: Section to retrieve property from
- prop: Property to retrieve
-
- Returns:
- List representing all properties of type prop in section.
-
- Raises:
- KeyError: if ``section`` or ``prop`` not found
- """
- return self.sections[section][prop]
-
-
-class Presets():
- """Class representing all systemd presets"""
- def __init__(self, scope, root):
- self.directives = list()
- self._collect_presets(scope, root)
-
- def _parse_presets(self, presets):
- """Parse presets out of a set of preset files"""
- skip_re = re.compile(r"^\s*([#;]|$)")
- directive_re = re.compile(r"^\s*(?P<action>enable|disable)\s+(?P<unit_name>(.+))")
-
- Directive = namedtuple("Directive", "action unit_name")
- for preset in presets:
- with preset.open() as f:
- for line in f:
- m = directive_re.match(line)
- if m:
- directive = Directive(action=m.group('action'),
- unit_name=m.group('unit_name'))
- self.directives.append(directive)
- elif skip_re.match(line):
- pass
- else:
- sys.exit("Unparsed preset line in {}".format(preset))
-
- def _collect_presets(self, scope, root):
- """Collect list of preset files"""
- presets = dict()
- for location in locations:
- paths = (root / location / scope).glob("*.preset")
- for path in paths:
- # earlier names override later ones
- if path.name not in presets:
- presets[path.name] = path
-
- self._parse_presets([v for k, v in sorted(presets.items())])
-
- def state(self, unit_name):
- """Return state of preset for unit_name
-
- Args:
- presets: set of presets
- unit_name: name of the unit
-
- Returns:
- None: no matching preset
- `enable`: unit_name is enabled
- `disable`: unit_name is disabled
- """
- for directive in self.directives:
- if fnmatch.fnmatch(unit_name, directive.unit_name):
- return directive.action
-
- return None
-
-
-def add_link(path, target):
- try:
- path.parent.mkdir(parents=True)
- except FileExistsError:
- pass
- if not path.is_symlink():
- print("ln -s {} {}".format(target, path))
- path.symlink_to(target)
-
-
-class SystemdUnitNotFoundError(Exception):
- def __init__(self, path, unit):
- self.path = path
- self.unit = unit
-
-
-class SystemdUnit():
- def __init__(self, root, unit, unit_type):
- self.root = root
- self.unit = unit
- self.unit_type = unit_type
- self.config = None
-
- def _path_for_unit(self, unit):
- for location in locations:
- path = self.root / location / self.unit_type / unit
- if path.exists() or path.is_symlink():
- return path
-
- raise SystemdUnitNotFoundError(self.root, unit)
-
- def _process_deps(self, config, service, location, prop, dirstem, instance):
- systemdir = self.root / SYSCONFDIR / "systemd" / self.unit_type
-
- target = ROOT / location.relative_to(self.root)
- try:
- for dependent in config.get('Install', prop):
- # expand any %i to instance (ignoring escape sequence %%)
- dependent = re.sub("([^%](%%)*)%i", "\\g<1>{}".format(instance), dependent)
- wants = systemdir / "{}.{}".format(dependent, dirstem) / service
- add_link(wants, target)
-
- except KeyError:
- pass
-
- def enable(self, units_enabled=[]):
- # if we're enabling an instance, first extract the actual instance
- # then figure out what the template unit is
- template = re.match(r"[^@]+@(?P<instance>[^\.]*)\.", self.unit)
- instance_unit_name = None
- if template:
- instance = template.group('instance')
- if instance != "":
- instance_unit_name = self.unit
- unit = re.sub(r"@[^\.]*\.", "@.", self.unit, 1)
- else:
- instance = None
- unit = self.unit
-
- if instance_unit_name is not None:
- try:
- # Try first with instance unit name. Systemd allows to create instance unit files
- # e.g. `gnome-shell@wayland.service` which cause template unit file to be ignored
- # for the instance for which instance unit file is present. In that case, there may
- # not be any template file at all.
- path = self._path_for_unit(instance_unit_name)
- except SystemdUnitNotFoundError:
- path = self._path_for_unit(unit)
- else:
- path = self._path_for_unit(unit)
-
- if path.is_symlink():
- # ignore aliases
- return
-
- config = SystemdFile(self.root, path, instance_unit_name, self.unit_type)
- if instance == "":
- try:
- default_instance = config.get('Install', 'DefaultInstance')[0]
- except KeyError:
- # no default instance, so nothing to enable
- return
-
- service = self.unit.replace("@.",
- "@{}.".format(default_instance))
- else:
- service = self.unit
-
- self._process_deps(config, service, path, 'WantedBy', 'wants', instance)
- self._process_deps(config, service, path, 'RequiredBy', 'requires', instance)
-
- try:
- for also in config.get('Install', 'Also'):
- try:
- units_enabled.append(unit)
- if also not in units_enabled:
- SystemdUnit(self.root, also, self.unit_type).enable(units_enabled)
- except SystemdUnitNotFoundError as e:
- sys.exit("Error: Systemctl also enable issue with %s (%s)" % (service, e.unit))
-
- except KeyError:
- pass
-
- systemdir = self.root / SYSCONFDIR / "systemd" / self.unit_type
- target = ROOT / path.relative_to(self.root)
- try:
- for dest in config.get('Install', 'Alias'):
- alias = systemdir / dest
- add_link(alias, target)
-
- except KeyError:
- pass
-
- def mask(self):
- systemdir = self.root / SYSCONFDIR / "systemd" / self.unit_type
- add_link(systemdir / self.unit, "/dev/null")
-
-
-def collect_services(root, unit_type):
- """Collect list of service files"""
- services = set()
- for location in locations:
- paths = (root / location / unit_type).glob("*")
- for path in paths:
- if path.is_dir():
- continue
- services.add(path.name)
-
- return services
-
-
-def preset_all(root, unit_type):
- presets = Presets('{}-preset'.format(unit_type), root)
- services = collect_services(root, unit_type)
-
- for service in services:
- state = presets.state(service)
-
- if state == "enable" or state is None:
- try:
- SystemdUnit(root, service, unit_type).enable()
- except SystemdUnitNotFoundError:
- sys.exit("Error: Systemctl preset_all issue in %s" % service)
-
- # If we populate the systemd links we also create /etc/machine-id, which
- # allows systemd to boot with the filesystem read-only before generating
- # a real value and then committing it back.
- #
- # For the stateless configuration, where /etc is generated at runtime
- # (for example on a tmpfs), this script shouldn't run at all and we
- # allow systemd to completely populate /etc.
- (root / SYSCONFDIR / "machine-id").touch()
-
-
-def main():
- if sys.version_info < (3, 4, 0):
- sys.exit("Python 3.4 or greater is required")
-
- parser = argparse.ArgumentParser()
- parser.add_argument('command', nargs='?', choices=['enable', 'mask',
- 'preset-all'])
- parser.add_argument('service', nargs=argparse.REMAINDER)
- parser.add_argument('--root')
- parser.add_argument('--preset-mode',
- choices=['full', 'enable-only', 'disable-only'],
- default='full')
- parser.add_argument('--global', dest="opt_global", action="store_true", default=False)
-
- args = parser.parse_args()
-
- root = Path(args.root) if args.root else ROOT
-
- locations.append(SYSCONFDIR / "systemd")
- # Handle the usrmerge case by ignoring /lib when it's a symlink
- if not (root / BASE_LIBDIR).is_symlink():
- locations.append(BASE_LIBDIR / "systemd")
- locations.append(LIBDIR / "systemd")
-
- command = args.command
- if not command:
- parser.print_help()
- return 0
-
- unit_type = "user" if args.opt_global else "system"
-
- if command == "mask":
- for service in args.service:
- try:
- SystemdUnit(root, service, unit_type).mask()
- except SystemdUnitNotFoundError as e:
- sys.exit("Error: Systemctl main mask issue in %s (%s)" % (service, e.unit))
- elif command == "enable":
- for service in args.service:
- try:
- SystemdUnit(root, service, unit_type).enable()
- except SystemdUnitNotFoundError as e:
- sys.exit("Error: Systemctl main enable issue in %s (%s)" % (service, e.unit))
- elif command == "preset-all":
- if len(args.service) != 0:
- sys.exit("Too many arguments.")
- if args.preset_mode != "enable-only":
- sys.exit("Only enable-only is supported as preset-mode.")
- preset_all(root, unit_type)
- else:
- raise RuntimeError()
-
-
-if __name__ == '__main__':
- main()