diff options
Diffstat (limited to 'meta/recipes-core/systemd/systemd-systemctl/systemctl')
| -rwxr-xr-x | meta/recipes-core/systemd/systemd-systemctl/systemctl | 26 |
1 files changed, 20 insertions, 6 deletions
diff --git a/meta/recipes-core/systemd/systemd-systemctl/systemctl b/meta/recipes-core/systemd/systemd-systemctl/systemctl index 6d19666d82..2229bc7b6d 100755 --- a/meta/recipes-core/systemd/systemd-systemctl/systemctl +++ b/meta/recipes-core/systemd/systemd-systemctl/systemctl @@ -26,6 +26,9 @@ locations = list() class SystemdFile(): """Class representing a single systemd configuration file""" + + _clearable_keys = ['WantedBy'] + def __init__(self, root, path, instance_unit_name): self.sections = dict() self._parse(root, path) @@ -80,6 +83,14 @@ class SystemdFile(): 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): @@ -184,19 +195,21 @@ class SystemdUnit(): raise SystemdUnitNotFoundError(self.root, unit) - def _process_deps(self, config, service, location, prop, dirstem): + def _process_deps(self, config, service, location, prop, dirstem, instance): systemdir = self.root / SYSCONFDIR / "systemd" / "system" 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, caller_unit=None): + 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) @@ -229,14 +242,15 @@ class SystemdUnit(): else: service = self.unit - self._process_deps(config, service, path, 'WantedBy', 'wants') - self._process_deps(config, service, path, 'RequiredBy', 'requires') + 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: - if caller_unit != also: - SystemdUnit(self.root, also).enable(unit) + units_enabled.append(unit) + if also not in units_enabled: + SystemdUnit(self.root, also).enable(units_enabled) except SystemdUnitNotFoundError as e: sys.exit("Error: Systemctl also enable issue with %s (%s)" % (service, e.unit)) |