async def attr_(obj, bus, group, vars_, eval_, path_):
"""Set/get/delete an attribute on a given KNX element.
`--eval` without a value deletes the attribute.
"""
group = (int(x) for x in group.split("/")) if group else ()
path = Path(bus, *group)
if len(path) != 4:
raise click.UsageError("Group address must be 3 /-separated elements.")
res = await obj.client.get(obj.cfg.knx.prefix + path, nchain=obj.meta or 1)
if vars_ or eval_ or path_:
res = await node_attr(obj,
obj.cfg.knx.prefix + path,
vars_,
eval_,
path_,
res=res)
if obj.meta:
yprint(res, stream=obj.stdout)
else:
if not obj.meta:
res = res.value
yprint(res, stream=obj.stdout)
async def addr(obj, bus, group, typ, mode, attr):
"""Set/get/delete device settings. This is a shortcut for the "attr" command."""
group = (int(x) for x in group.split("/"))
path = Path(bus, *group)
if len(path) != 4:
raise click.UsageError("Group address must be 3 /-separated elements.")
res = await obj.client.get(obj.cfg.knx.prefix + path, nchain=obj.meta or 1)
val = res.get("value", attrdict())
if typ == "-":
res = await obj.client.delete(obj.cfg.knx.prefix + path,
nchain=obj.meta)
if obj.meta:
yprint(res, stream=obj.stdout)
return
if typ:
attr = (("type", typ), ) + attr
if mode:
attr = (("mode", mode), ) + attr
for k, v in attr:
if k in {"src", "dest"}:
v = P(v)
else:
try:
v = int(v)
except ValueError:
try:
v = float(v)
except ValueError:
pass
val[k] = v
await _attr(obj, (), val, path, False, res)
async def dump(obj, path):
"""Emit the current state as a YAML file."""
res = {}
path = P(path)
if len(path) > 4:
raise click.UsageError("Only up to four path elements allowed")
async for r in obj.client.get_tree(obj.cfg.knx.prefix + path,
nchain=obj.meta,
max_depth=4 - len(path)):
# pl = len(path) + len(r.path)
rr = res
if r.path:
for rp in r.path:
rr = rr.setdefault(rp, {})
rr["_"] = r if obj.meta else r.value
yprint(res, stream=obj.stdout)
async def server_(obj, name, host, port, delete):
"""
Configure a server.
No arguments: list them.
"""
if not name:
if host or port or delete:
raise click.UsageError("Use a server name to set parameters")
async for r in obj.client.get_tree(obj.cfg.akumuli.prefix,
min_depth=1,
max_depth=1):
print(r.path[-1], file=obj.stdout)
return
elif len(name) > 1:
raise click.UsageError("Only one server allowed")
name = name[0]
if host or port:
if delete:
raise click.UsageError(
"You can't delete and set at the same time.")
value = attrdict()
if host:
value.host = host
if port:
if port == "-":
value.port = NotGiven
else:
value.port = int(port)
elif delete:
res = await obj.client.delete_tree(obj.cfg.akumuli.prefix + name,
nchain=obj.meta)
if obj.meta:
yprint(res, stream=obj.stdout)
return
else:
value = None
res = await node_attr(obj, obj.cfg.akumuli.prefix | name, ("server", ),
value)
if obj.meta:
yprint(res, stream=obj.stdout)
async def attr_(obj, attr, value, path, eval_, path_):
"""Set/get/delete an attribute on a given akumuli element.
`--eval` without a value deletes the attribute.
"""
path = P(path)
if path_ and eval_:
raise click.UsageError("split and eval don't work together.")
if value and not attr:
raise click.UsageError("Values must have locations ('-a ATTR').")
if path_:
value = P(value)
res = await node_attr(obj,
obj.cfg.akumuli.prefix + path,
P(attr),
value,
eval_=eval_)
if obj.meta:
yprint(res, stream=obj.stdout)
async def set_(obj, path, source, mode, attr, series, tags):
"""Set/delete part of a series.
\b
path: the name of this copy command. Unique path, non-empty.
source: the element with the data. unique path, non-empty.
series: the Akumuli series to write to.
tags: any number of "name=value" Akumuli tags to use for the series.
A series of '-' deletes.
"""
path = P(path)
attr = P(attr)
source = P(source)
mode = getattr(DS, mode)
tagged = {}
if series == "-":
if tags:
raise click.UsageError("You can't add tags when deleting")
series = None
await obj.client.delete(obj.cfg.akumuli.prefix + path)
return
if not tags:
raise click.UsageError("You can't write to a series without tags")
for x in tags:
try:
k, v = x.split("=", 2)
except ValueError:
raise click.UsageError("Tags must be key=value") from None
tagged[k] = v
val = dict(source=source, series=series, tags=tagged, mode=mode.name)
if attr:
val["attr"] = attr
res = await obj.client.set(obj.cfg.akumuli.prefix + path, val)
if obj.meta:
yprint(res, stream=obj.stdout)
async def _attr(obj, attr, value, path, eval_, res=None):
# Sub-attr setter.
# Special: if eval_ is True, an empty value deletes. A mapping replaces instead of updating.
if res is None:
res = await obj.client.get(obj.cfg.knx.prefix + path,
nchain=obj.meta or 1)
try:
val = res.value
except AttributeError:
res.chain = None
if eval_:
if value is None:
pass ## value = res_delete(res, attr)
else:
value = path_eval(value)
if isinstance(value, Mapping):
# replace
pass ## value = res_delete(res, attr)
value = value._update(attr, value=value)
else:
value = res_update(res, attr, value=value)
else:
if value is None:
if not attr and obj.meta:
val = res
else:
val = res_get(res, attr)
yprint(val, stream=obj.stdout)
return
value = res_update(res, attr, value=value)
res = await obj.client.set(obj.cfg.knx.prefix + path,
value=value,
nchain=obj.meta,
chain=res.chain)
if obj.meta:
yprint(res, stream=obj.stdout)