Файловый менеджер - Редактировать - /snap/core18/2846/usr/lib/python3/dist-packages/cloudinit/mergers/m_dict.py
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# Copyright (C) 2012 Yahoo! Inc. # # Author: Joshua Harlow <harlowja@yahoo-inc.com> # # This file is part of cloud-init. See LICENSE file for license information. DEF_MERGE_TYPE = "no_replace" MERGE_TYPES = ( "replace", DEF_MERGE_TYPE, ) def _has_any(what, *keys): for k in keys: if k in what: return True return False class Merger: def __init__(self, merger, opts): self._merger = merger # Affects merging behavior... self._method = DEF_MERGE_TYPE for m in MERGE_TYPES: if m in opts: self._method = m break # Affect how recursive merging is done on other primitives. self._recurse_str = "recurse_str" in opts self._recurse_array = _has_any(opts, "recurse_array", "recurse_list") self._allow_delete = "allow_delete" in opts # Backwards compat require this to be on. self._recurse_dict = True def __str__(self): s = ( "DictMerger: (method=%s,recurse_str=%s," "recurse_dict=%s,recurse_array=%s,allow_delete=%s)" ) s = s % ( self._method, self._recurse_str, self._recurse_dict, self._recurse_array, self._allow_delete, ) return s def _do_dict_replace(self, value, merge_with, do_replace): def merge_same_key(old_v, new_v): if do_replace: return new_v if isinstance(new_v, (list, tuple)) and self._recurse_array: return self._merger.merge(old_v, new_v) if isinstance(new_v, str) and self._recurse_str: return self._merger.merge(old_v, new_v) if isinstance(new_v, (dict)) and self._recurse_dict: return self._merger.merge(old_v, new_v) # Otherwise leave it be... return old_v for (k, v) in merge_with.items(): if k in value: if v is None and self._allow_delete: value.pop(k) else: value[k] = merge_same_key(value[k], v) else: value[k] = v return value def _on_dict(self, value, merge_with): if not isinstance(merge_with, (dict)): return value if self._method == "replace": merged = self._do_dict_replace(dict(value), merge_with, True) elif self._method == "no_replace": merged = self._do_dict_replace(dict(value), merge_with, False) else: raise NotImplementedError("Unknown merge type %s" % (self._method)) return merged # vi: ts=4 expandtab
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