esphome/esphome/config.py
2021-06-18 11:52:02 +12:00

863 lines
29 KiB
Python

import collections
import logging
import re
# pylint: disable=unused-import, wrong-import-order
from contextlib import contextmanager
import voluptuous as vol
from esphome import core, yaml_util, loader
import esphome.core.config as core_config
from esphome.const import (
CONF_ESPHOME,
CONF_PLATFORM,
CONF_PACKAGES,
CONF_SUBSTITUTIONS,
CONF_EXTERNAL_COMPONENTS,
)
from esphome.core import CORE, EsphomeError
from esphome.helpers import indent
from esphome.util import safe_print, OrderedDict
from typing import List, Optional, Tuple, Union
from esphome.loader import get_component, get_platform, ComponentManifest
from esphome.yaml_util import is_secret, ESPHomeDataBase, ESPForceValue
from esphome.voluptuous_schema import ExtraKeysInvalid
from esphome.log import color, Fore
import esphome.final_validate as fv
import esphome.config_validation as cv
from esphome.types import ConfigType, ConfigPathType, ConfigFragmentType
_LOGGER = logging.getLogger(__name__)
def iter_components(config):
for domain, conf in config.items():
component = get_component(domain)
if component.multi_conf:
for conf_ in conf:
yield domain, component, conf_
else:
yield domain, component, conf
if component.is_platform_component:
for p_config in conf:
p_name = "{}.{}".format(domain, p_config[CONF_PLATFORM])
platform = get_platform(domain, p_config[CONF_PLATFORM])
yield p_name, platform, p_config
ConfigPath = List[Union[str, int]]
def _path_begins_with(path, other): # type: (ConfigPath, ConfigPath) -> bool
if len(path) < len(other):
return False
return path[: len(other)] == other
class Config(OrderedDict, fv.FinalValidateConfig):
def __init__(self):
super().__init__()
# A list of voluptuous errors
self.errors = [] # type: List[vol.Invalid]
# A list of paths that should be fully outputted
# The values will be the paths to all "domain", for example (['logger'], 'logger')
# or (['sensor', 'ultrasonic'], 'sensor.ultrasonic')
self.output_paths = [] # type: List[Tuple[ConfigPath, str]]
# A list of components ids with the config path
self.declare_ids = [] # type: List[Tuple[core.ID, ConfigPath]]
self._data = {}
def add_error(self, error):
# type: (vol.Invalid) -> None
if isinstance(error, vol.MultipleInvalid):
for err in error.errors:
self.add_error(err)
return
if cv.ROOT_CONFIG_PATH in error.path:
# Root value means that the path before the root should be ignored
last_root = max(
i for i, v in enumerate(error.path) if v is cv.ROOT_CONFIG_PATH
)
error.path = error.path[last_root + 1 :]
self.errors.append(error)
@contextmanager
def catch_error(self, path=None):
path = path or []
try:
yield
except vol.Invalid as e:
e.prepend(path)
self.add_error(e)
def add_str_error(self, message, path):
# type: (str, ConfigPath) -> None
self.add_error(vol.Invalid(message, path))
def add_output_path(self, path, domain):
# type: (ConfigPath, str) -> None
self.output_paths.append((path, domain))
def remove_output_path(self, path, domain):
# type: (ConfigPath, str) -> None
self.output_paths.remove((path, domain))
def is_in_error_path(self, path):
# type: (ConfigPath) -> bool
for err in self.errors:
if _path_begins_with(err.path, path):
return True
return False
def set_by_path(self, path, value):
conf = self
for key in path[:-1]:
conf = conf[key]
conf[path[-1]] = value
def get_error_for_path(self, path):
# type: (ConfigPath) -> Optional[vol.Invalid]
for err in self.errors:
if self.get_deepest_path(err.path) == path:
return err
return None
def get_deepest_document_range_for_path(self, path):
# type: (ConfigPath) -> Optional[ESPHomeDataBase]
data = self
doc_range = None
for item_index in path:
try:
if item_index in data:
doc_range = [x for x in data.keys() if x == item_index][0].esp_range
data = data[item_index]
except (KeyError, IndexError, TypeError, AttributeError):
return doc_range
if isinstance(data, core.ID):
data = data.id
if isinstance(data, ESPHomeDataBase) and data.esp_range is not None:
doc_range = data.esp_range
elif isinstance(data, dict):
platform_item = data.get("platform")
if (
isinstance(platform_item, ESPHomeDataBase)
and platform_item.esp_range is not None
):
doc_range = platform_item.esp_range
return doc_range
def get_nested_item(
self, path: ConfigPathType, raise_error: bool = False
) -> ConfigFragmentType:
data = self
for item_index in path:
try:
data = data[item_index]
except (KeyError, IndexError, TypeError):
if raise_error:
raise
return {}
return data
def get_deepest_path(self, path):
# type: (ConfigPath) -> ConfigPath
"""Return the path that is the deepest reachable by following path."""
data = self
part = []
for item_index in path:
try:
data = data[item_index]
except (KeyError, IndexError, TypeError):
return part
part.append(item_index)
return part
def get_path_for_id(self, id: core.ID):
"""Return the config fragment where the given ID is declared."""
for declared_id, path in self.declare_ids:
if declared_id.id == str(id):
return path
raise KeyError(f"ID {id} not found in configuration")
def get_config_for_path(self, path: ConfigPathType) -> ConfigFragmentType:
return self.get_nested_item(path, raise_error=True)
@property
def data(self):
"""Return temporary data used by final validation functions."""
return self._data
def iter_ids(config, path=None):
path = path or []
if isinstance(config, core.ID):
yield config, path
elif isinstance(config, core.Lambda):
for id in config.requires_ids:
yield id, path
elif isinstance(config, list):
for i, item in enumerate(config):
yield from iter_ids(item, path + [i])
elif isinstance(config, dict):
for key, value in config.items():
yield from iter_ids(value, path + [key])
def do_id_pass(result): # type: (Config) -> None
from esphome.cpp_generator import MockObjClass
from esphome.cpp_types import Component
searching_ids = [] # type: List[Tuple[core.ID, ConfigPath]]
for id, path in iter_ids(result):
if id.is_declaration:
if id.id is not None:
# Look for duplicate definitions
match = next((v for v in result.declare_ids if v[0].id == id.id), None)
if match is not None:
opath = "->".join(str(v) for v in match[1])
result.add_str_error(f"ID {id.id} redefined! Check {opath}", path)
continue
result.declare_ids.append((id, path))
else:
searching_ids.append((id, path))
# Resolve default ids after manual IDs
for id, _ in result.declare_ids:
id.resolve([v[0].id for v in result.declare_ids])
if isinstance(id.type, MockObjClass) and id.type.inherits_from(Component):
CORE.component_ids.add(id.id)
# Check searched IDs
for id, path in searching_ids:
if id.id is not None:
# manually declared
match = next((v[0] for v in result.declare_ids if v[0].id == id.id), None)
if match is None or not match.is_manual:
# No declared ID with this name
import difflib
error = (
"Couldn't find ID '{}'. Please check you have defined "
"an ID with that name in your configuration.".format(id.id)
)
# Find candidates
matches = difflib.get_close_matches(
id.id, [v[0].id for v in result.declare_ids if v[0].is_manual]
)
if matches:
matches_s = ", ".join(f'"{x}"' for x in matches)
error += f" These IDs look similar: {matches_s}."
result.add_str_error(error, path)
continue
if not isinstance(match.type, MockObjClass) or not isinstance(
id.type, MockObjClass
):
continue
if not match.type.inherits_from(id.type):
result.add_str_error(
"ID '{}' of type {} doesn't inherit from {}. Please "
"double check your ID is pointing to the correct value"
"".format(id.id, match.type, id.type),
path,
)
if id.id is None and id.type is not None:
matches = []
for v in result.declare_ids:
if v[0] is None or not isinstance(v[0].type, MockObjClass):
continue
inherits = v[0].type.inherits_from(id.type)
if inherits:
matches.append(v[0])
if len(matches) == 0:
result.add_str_error(
f"Couldn't find any component that can be used for '{id.type}'. Are you missing a hub declaration?",
path,
)
elif len(matches) == 1:
id.id = matches[0].id
elif len(matches) > 1:
if str(id.type) == "time::RealTimeClock":
id.id = matches[0].id
else:
manual_declared_count = sum(1 for m in matches if m.is_manual)
if manual_declared_count > 0:
ids = ", ".join([f"'{m.id}'" for m in matches if m.is_manual])
result.add_str_error(
f"Too many candidates found for '{path[-1]}' type '{id.type}' {'Some are' if manual_declared_count > 1 else 'One is'} {ids}",
path,
)
else:
result.add_str_error(
f"Too many candidates found for '{path[-1]}' type '{id.type}' You must assign an explicit ID to the parent component you want to use.",
path,
)
def recursive_check_replaceme(value):
if isinstance(value, list):
return cv.Schema([recursive_check_replaceme])(value)
if isinstance(value, dict):
return cv.Schema({cv.valid: recursive_check_replaceme})(value)
if isinstance(value, ESPForceValue):
pass
if isinstance(value, str) and value == "REPLACEME":
raise cv.Invalid(
"Found 'REPLACEME' in configuration, this is most likely an error. "
"Please make sure you have replaced all fields from the sample "
"configuration.\n"
"If you want to use the literal REPLACEME string, "
'please use "!force REPLACEME"'
)
return value
def validate_config(config, command_line_substitutions):
result = Config()
loader.clear_component_meta_finders()
loader.install_custom_components_meta_finder()
# 0. Load packages
if CONF_PACKAGES in config:
from esphome.components.packages import do_packages_pass
result.add_output_path([CONF_PACKAGES], CONF_PACKAGES)
try:
config = do_packages_pass(config)
except vol.Invalid as err:
result.update(config)
result.add_error(err)
return result
# 1. Load substitutions
if CONF_SUBSTITUTIONS in config:
from esphome.components import substitutions
result[CONF_SUBSTITUTIONS] = {
**config[CONF_SUBSTITUTIONS],
**command_line_substitutions,
}
result.add_output_path([CONF_SUBSTITUTIONS], CONF_SUBSTITUTIONS)
try:
substitutions.do_substitution_pass(config, command_line_substitutions)
except vol.Invalid as err:
result.add_error(err)
return result
# 1.1. Check for REPLACEME special value
try:
recursive_check_replaceme(config)
except vol.Invalid as err:
result.add_error(err)
# 1.2. Load external_components
if CONF_EXTERNAL_COMPONENTS in config:
from esphome.components.external_components import do_external_components_pass
result.add_output_path([CONF_EXTERNAL_COMPONENTS], CONF_EXTERNAL_COMPONENTS)
try:
do_external_components_pass(config)
except vol.Invalid as err:
result.update(config)
result.add_error(err)
return result
if "esphomeyaml" in config:
_LOGGER.warning(
"The esphomeyaml section has been renamed to esphome in 1.11.0. "
"Please replace 'esphomeyaml:' in your configuration with 'esphome:'."
)
config[CONF_ESPHOME] = config.pop("esphomeyaml")
if CONF_ESPHOME not in config:
result.add_str_error(
"'esphome' section missing from configuration. Please make sure "
"your configuration has an 'esphome:' line in it.",
[],
)
return result
# 2. Load partial core config
result[CONF_ESPHOME] = config[CONF_ESPHOME]
result.add_output_path([CONF_ESPHOME], CONF_ESPHOME)
try:
core_config.preload_core_config(config)
except vol.Invalid as err:
result.add_error(err)
return result
# Remove temporary esphome config path again, it will be reloaded later
result.remove_output_path([CONF_ESPHOME], CONF_ESPHOME)
# 3. Load components.
# Load components (also AUTO_LOAD) and set output paths of result
# Queue of items to load, FIFO
load_queue = collections.deque()
for domain, conf in config.items():
load_queue.append((domain, conf))
# List of items to enter next stage
check_queue = (
[]
) # type: List[Tuple[ConfigPath, str, ConfigType, ComponentManifest]]
# This step handles:
# - Adding output path
# - Auto Load
# - Loading configs into result
while load_queue:
domain, conf = load_queue.popleft()
if domain.startswith("."):
# Ignore top-level keys starting with a dot
continue
result.add_output_path([domain], domain)
result[domain] = conf
component = get_component(domain)
path = [domain]
if component is None:
result.add_str_error(f"Component not found: {domain}", path)
continue
CORE.loaded_integrations.add(domain)
# Process AUTO_LOAD
for load in component.auto_load:
if load not in config:
load_conf = core.AutoLoad()
config[load] = load_conf
load_queue.append((load, load_conf))
if not component.is_platform_component:
check_queue.append(([domain], domain, conf, component))
continue
# This is a platform component, proceed to reading platform entries
# Remove this is as an output path
result.remove_output_path([domain], domain)
# Ensure conf is a list
if not conf:
result[domain] = conf = []
elif not isinstance(conf, list):
result[domain] = conf = [conf]
for i, p_config in enumerate(conf):
path = [domain, i]
# Construct temporary unknown output path
p_domain = f"{domain}.unknown"
result.add_output_path(path, p_domain)
result[domain][i] = p_config
if not isinstance(p_config, dict):
result.add_str_error("Platform schemas must be key-value pairs.", path)
continue
p_name = p_config.get("platform")
if p_name is None:
result.add_str_error("No platform specified! See 'platform' key.", path)
continue
# Remove temp output path and construct new one
result.remove_output_path(path, p_domain)
p_domain = f"{domain}.{p_name}"
result.add_output_path(path, p_domain)
# Try Load platform
platform = get_platform(domain, p_name)
if platform is None:
result.add_str_error(f"Platform not found: '{p_domain}'", path)
continue
CORE.loaded_integrations.add(p_name)
# Process AUTO_LOAD
for load in platform.auto_load:
if load not in config:
load_conf = core.AutoLoad()
config[load] = load_conf
load_queue.append((load, load_conf))
check_queue.append((path, p_domain, p_config, platform))
# 4. Validate component metadata, including
# - Transformation (nullable, multi conf)
# - Dependencies
# - Conflicts
# - Supported ESP Platform
# List of items to proceed to next stage
validate_queue = [] # type: List[Tuple[ConfigPath, ConfigType, ComponentManifest]]
for path, domain, conf, comp in check_queue:
if conf is None:
result[domain] = conf = {}
success = True
for dependency in comp.dependencies:
if dependency not in config:
result.add_str_error(
"Component {} requires component {}" "".format(domain, dependency),
path,
)
success = False
if not success:
continue
success = True
for conflict in comp.conflicts_with:
if conflict in config:
result.add_str_error(
"Component {} cannot be used together with component {}"
"".format(domain, conflict),
path,
)
success = False
if not success:
continue
if CORE.esp_platform not in comp.esp_platforms:
result.add_str_error(
"Component {} doesn't support {}.".format(domain, CORE.esp_platform),
path,
)
continue
if (
not comp.is_platform_component
and comp.config_schema is None
and not isinstance(conf, core.AutoLoad)
):
result.add_str_error(
"Component {} cannot be loaded via YAML "
"(no CONFIG_SCHEMA).".format(domain),
path,
)
continue
if comp.multi_conf:
if not isinstance(conf, list):
result[domain] = conf = [conf]
if not isinstance(comp.multi_conf, bool) and len(conf) > comp.multi_conf:
result.add_str_error(
"Component {} supports a maximum of {} "
"entries ({} found).".format(domain, comp.multi_conf, len(conf)),
path,
)
continue
for i, part_conf in enumerate(conf):
validate_queue.append((path + [i], part_conf, comp))
continue
validate_queue.append((path, conf, comp))
# 5. Validate configuration schema
for path, conf, comp in validate_queue:
if comp.config_schema is None:
continue
with result.catch_error(path):
if comp.is_platform:
# Remove 'platform' key for validation
input_conf = OrderedDict(conf)
platform_val = input_conf.pop("platform")
validated = comp.config_schema(input_conf)
# Ensure result is OrderedDict so we can call move_to_end
if not isinstance(validated, OrderedDict):
validated = OrderedDict(validated)
validated["platform"] = platform_val
validated.move_to_end("platform", last=False)
result.set_by_path(path, validated)
else:
validated = comp.config_schema(conf)
result.set_by_path(path, validated)
# 6. If no validation errors, check IDs
if not result.errors:
# Only parse IDs if no validation error. Otherwise
# user gets confusing messages
do_id_pass(result)
# 7. Final validation
if not result.errors:
# Inter - components validation
token = fv.full_config.set(result)
for path, _, comp in validate_queue:
if comp.final_validate_schema is None:
continue
conf = result.get_nested_item(path)
with result.catch_error(path):
comp.final_validate_schema(conf)
fv.full_config.reset(token)
return result
def _nested_getitem(data, path):
for item_index in path:
try:
data = data[item_index]
except (KeyError, IndexError, TypeError):
return None
return data
def humanize_error(config, validation_error):
validation_error = str(validation_error)
m = re.match(
r"^(.*?)\s*(?:for dictionary value )?@ data\[.*$", validation_error, re.DOTALL
)
if m is not None:
validation_error = m.group(1)
validation_error = validation_error.strip()
if not validation_error.endswith("."):
validation_error += "."
return validation_error
def _get_parent_name(path, config):
if not path:
return "<root>"
for domain_path, domain in config.output_paths:
if _path_begins_with(path, domain_path):
if len(path) > len(domain_path):
# Sub-item
break
return domain
return path[-1]
def _format_vol_invalid(ex, config):
# type: (vol.Invalid, Config) -> str
message = ""
paren = _get_parent_name(ex.path[:-1], config)
if isinstance(ex, ExtraKeysInvalid):
if ex.candidates:
message += "[{}] is an invalid option for [{}]. Did you mean {}?".format(
ex.path[-1], paren, ", ".join(f"[{x}]" for x in ex.candidates)
)
else:
message += "[{}] is an invalid option for [{}]. Please check the indentation.".format(
ex.path[-1], paren
)
elif "extra keys not allowed" in str(ex):
message += "[{}] is an invalid option for [{}].".format(ex.path[-1], paren)
elif isinstance(ex, vol.RequiredFieldInvalid):
if ex.msg == "required key not provided":
message += "'{}' is a required option for [{}].".format(ex.path[-1], paren)
else:
# Required has set a custom error message
message += ex.msg
else:
message += humanize_error(config, ex)
return message
class InvalidYAMLError(EsphomeError):
def __init__(self, base_exc):
try:
base = str(base_exc)
except UnicodeDecodeError:
base = repr(base_exc)
message = f"Invalid YAML syntax:\n\n{base}"
super().__init__(message)
self.base_exc = base_exc
def _load_config(command_line_substitutions):
try:
config = yaml_util.load_yaml(CORE.config_path)
except EsphomeError as e:
raise InvalidYAMLError(e) from e
CORE.raw_config = config
try:
result = validate_config(config, command_line_substitutions)
except EsphomeError:
raise
except Exception:
_LOGGER.error("Unexpected exception while reading configuration:")
raise
return result
def load_config(command_line_substitutions):
try:
return _load_config(command_line_substitutions)
except vol.Invalid as err:
raise EsphomeError(f"Error while parsing config: {err}") from err
def line_info(config, path, highlight=True):
"""Display line config source."""
if not highlight:
return None
obj = config.get_deepest_document_range_for_path(path)
if obj:
mark = obj.start_mark
source = "[source {}:{}]".format(mark.document, mark.line + 1)
return color(Fore.CYAN, source)
return "None"
def _print_on_next_line(obj):
if isinstance(obj, (list, tuple, dict)):
return True
if isinstance(obj, str):
return len(obj) > 80
if isinstance(obj, core.Lambda):
return len(obj.value) > 80
return False
def dump_dict(config, path, at_root=True):
# type: (Config, ConfigPath, bool) -> Tuple[str, bool]
conf = config.get_nested_item(path)
ret = ""
multiline = False
if at_root:
error = config.get_error_for_path(path)
if error is not None:
ret += (
"\n" + color(Fore.BOLD_RED, _format_vol_invalid(error, config)) + "\n"
)
if isinstance(conf, (list, tuple)):
multiline = True
if not conf:
ret += "[]"
multiline = False
for i in range(len(conf)):
path_ = path + [i]
error = config.get_error_for_path(path_)
if error is not None:
ret += (
"\n"
+ color(Fore.BOLD_RED, _format_vol_invalid(error, config))
+ "\n"
)
sep = "- "
if config.is_in_error_path(path_):
sep = color(Fore.RED, sep)
msg, _ = dump_dict(config, path_, at_root=False)
msg = indent(msg)
inf = line_info(config, path_, highlight=config.is_in_error_path(path_))
if inf is not None:
msg = inf + "\n" + msg
elif msg:
msg = msg[2:]
ret += sep + msg + "\n"
elif isinstance(conf, dict):
multiline = True
if not conf:
ret += "{}"
multiline = False
for k in conf.keys():
path_ = path + [k]
error = config.get_error_for_path(path_)
if error is not None:
ret += (
"\n"
+ color(Fore.BOLD_RED, _format_vol_invalid(error, config))
+ "\n"
)
st = f"{k}: "
if config.is_in_error_path(path_):
st = color(Fore.RED, st)
msg, m = dump_dict(config, path_, at_root=False)
inf = line_info(config, path_, highlight=config.is_in_error_path(path_))
if m:
msg = "\n" + indent(msg)
if inf is not None:
if m:
msg = " " + inf + msg
else:
msg = msg + " " + inf
ret += st + msg + "\n"
elif isinstance(conf, str):
if is_secret(conf):
conf = "!secret {}".format(is_secret(conf))
if not conf:
conf += "''"
if len(conf) > 80:
conf = "|-\n" + indent(conf)
error = config.get_error_for_path(path)
col = Fore.BOLD_RED if error else Fore.KEEP
ret += color(col, str(conf))
elif isinstance(conf, core.Lambda):
if is_secret(conf):
conf = "!secret {}".format(is_secret(conf))
conf = "!lambda |-\n" + indent(str(conf.value))
error = config.get_error_for_path(path)
col = Fore.BOLD_RED if error else Fore.KEEP
ret += color(col, conf)
elif conf is None:
pass
else:
error = config.get_error_for_path(path)
col = Fore.BOLD_RED if error else Fore.KEEP
ret += color(col, str(conf))
multiline = "\n" in ret
return ret, multiline
def strip_default_ids(config):
if isinstance(config, list):
to_remove = []
for i, x in enumerate(config):
x = config[i] = strip_default_ids(x)
if (isinstance(x, core.ID) and not x.is_manual) or isinstance(
x, core.AutoLoad
):
to_remove.append(x)
for x in to_remove:
config.remove(x)
elif isinstance(config, dict):
to_remove = []
for k, v in config.items():
v = config[k] = strip_default_ids(v)
if (isinstance(v, core.ID) and not v.is_manual) or isinstance(
v, core.AutoLoad
):
to_remove.append(k)
for k in to_remove:
config.pop(k)
return config
def read_config(command_line_substitutions):
_LOGGER.info("Reading configuration %s...", CORE.config_path)
try:
res = load_config(command_line_substitutions)
except EsphomeError as err:
_LOGGER.error("Error while reading config: %s", err)
return None
if res.errors:
if not CORE.verbose:
res = strip_default_ids(res)
safe_print(color(Fore.BOLD_RED, "Failed config"))
safe_print("")
for path, domain in res.output_paths:
if not res.is_in_error_path(path):
continue
errstr = color(Fore.BOLD_RED, f"{domain}:")
errline = line_info(res, path)
if errline:
errstr += " " + errline
safe_print(errstr)
safe_print(indent(dump_dict(res, path)[0]))
return None
return OrderedDict(res)