esphome/esphome/config_helpers.py

105 lines
3.2 KiB
Python

from esphome.const import CONF_ID
class Extend:
def __init__(self, value):
self.value = value
def __str__(self):
return f"!extend {self.value}"
def __repr__(self):
return f"Extend({self.value})"
def __eq__(self, b):
"""
Check if two Extend objects contain the same ID.
Only used in unit tests.
"""
return isinstance(b, Extend) and self.value == b.value
class Remove:
def __init__(self, value=None):
self.value = value
def __str__(self):
return f"!remove {self.value}"
def __repr__(self):
return f"Remove({self.value})"
def __eq__(self, b):
"""
Check if two Remove objects contain the same ID.
Only used in unit tests.
"""
return isinstance(b, Remove) and self.value == b.value
def merge_config(full_old, full_new):
def merge(old, new):
if isinstance(new, dict):
if not isinstance(old, dict):
return new
res = old.copy()
for k, v in new.items():
if isinstance(v, Remove) and k in old:
del res[k]
else:
res[k] = merge(old[k], v) if k in old else v
return res
if isinstance(new, list):
if not isinstance(old, list):
return new
res = old.copy()
ids = {
v_id: i
for i, v in enumerate(res)
if isinstance(v, dict)
and (v_id := v.get(CONF_ID))
and isinstance(v_id, str)
}
extend_ids = {
v_id.value: i
for i, v in enumerate(res)
if isinstance(v, dict)
and (v_id := v.get(CONF_ID))
and isinstance(v_id, Extend)
}
ids_to_delete = []
for v in new:
if isinstance(v, dict) and (new_id := v.get(CONF_ID)):
if isinstance(new_id, Extend):
new_id = new_id.value
if new_id in ids:
v[CONF_ID] = new_id
res[ids[new_id]] = merge(res[ids[new_id]], v)
continue
elif isinstance(new_id, Remove):
new_id = new_id.value
if new_id in ids:
ids_to_delete.append(ids[new_id])
continue
elif (
new_id in extend_ids
): # When a package is extending a non-packaged item
extend_res = res[extend_ids[new_id]]
extend_res[CONF_ID] = new_id
new_v = merge(v, extend_res)
res[extend_ids[new_id]] = new_v
continue
else:
ids[new_id] = len(res)
res.append(v)
res = [v for i, v in enumerate(res) if i not in ids_to_delete]
return res
if new is None:
return old
return new
return merge(full_old, full_new)