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dotbot/dotbot/util/singleton.py
m-richards 47f3e07b2d
Cleanup link logic, with a fix for windows links with \\?\ in them.
* reduce ci matrix

* python runscript without bash

(cherry picked from commit 9b148a6679722db5eb7ffabd3a27a8579f296319)

* change link dest function to handle '\?\' links

* add path normalization for windows support

* Revert "add path normalization for windows support"

This reverts commit 2ab0fc1b3c.

* link variable extraction without normpath

* type annotation

* blacken

* missing black files

* variable renames from '2775765a' outside link function

* from '2775765a' use method for default flags

* fix defaults from method

* variable renames from '2775765a' in link function and method renames

* refactor if clauses into blocks

* maybe fix if refactor

* remove unreachable code

* remove silly disambiguation semantics

* remove silly disambiguation semantics 2

* incremental else swap

* bring source existence check to front

* bring source existence check to front and remove old back check

* refactor almost final case

* check symlink broken cases up front

* add return missing

* flip block order to make things easier to understand
2021-02-16 19:32:13 +10:00

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239 B
Python

class Singleton(type):
_instances = {}
def __call__(cls, *args, **kwargs):
if cls not in cls._instances:
cls._instances[cls] = super(Singleton, cls).__call__(*args, **kwargs)
return cls._instances[cls]