Lightweight Python 3+ client library for Kubernetes (pykube-ng) https://pykube.readthedocs.io/
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import re
from typing import List
try:
from jsonpath_ng import parse as jsonpath
jsonpath_installed = True
except ImportError:
jsonpath_installed = False
from itertools import zip_longest
empty = object()
def obj_merge(obj, original_obj, is_strategic=True):
c = {}
for k, v in obj.items():
if k not in original_obj:
c[k] = v
else:
c[k] = obj_check(v, original_obj[k], is_strategic)
if is_strategic is True:
for k, v in original_obj.items():
if k not in obj:
c[k] = v
return c
def obj_check(obj_value, original_obj_value, is_strategic=True):
check_result = None
if not isinstance(obj_value, type(original_obj_value)):
check_result = obj_value
else:
if isinstance(obj_value, dict):
check_result = obj_merge(obj_value, original_obj_value, is_strategic)
elif isinstance(obj_value, list):
if is_strategic:
res_list = []
for x, y in zip_longest(obj_value, original_obj_value, fillvalue=empty):
if x is empty:
res_list.append(y)
elif y is empty:
res_list.append(x)
else:
res_list.append(obj_check(x, y, is_strategic))
check_result = res_list
else:
check_result = obj_value
else:
check_result = obj_value
return check_result
def jsonpath_parse(template, obj):
def repl(m):
path = m.group(2)
if not path.startswith("$"):
path = "$" + path
return jsonpath(path).find(obj)[0].value
return re.sub(r"(\{([^\}]*)\})", repl, template)
def join_url_path(*components, join_empty: bool = False) -> str:
"""Join given URL path components and return absolute path starting with '/'."""
new_comps: List[str] = []
for comp in components:
comp = comp.strip("/")
if comp in ("", "."):
continue
else:
new_comps.append(comp)
if components and components[-1] == "" and join_empty:
trailing_slash = True
elif components and components[-1] == "/":
trailing_slash = True
else:
trailing_slash = False
if trailing_slash:
new_comps.append("")
path = "/".join(new_comps)
return "/" + path