Add a Singleton metaclass, use it with Display (#48935)

* Add a Singleton class, use it with Display

* update six import

* Move remaining failes to display singleton

* Fix rebase issues

* Singleton improvements

* Add code-smell for 'from __main__ import display'. ci_complete

* s/self/cls/g

* Add docs for no-main-display

* Address linting issues

* Add changelog fragment. ci_complete

* Implement reentrant lock for class instantiation in Singleton

* Add Display singleton porting guide
This commit is contained in:
Matt Martz 2018-11-20 17:06:51 -06:00 committed by GitHub
commit 9773a1f289
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149 changed files with 407 additions and 766 deletions

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@ -25,7 +25,7 @@ from functools import wraps
from ansible.plugins import AnsiblePlugin
from ansible.errors import AnsibleError, AnsibleConnectionFailure
from ansible.module_utils._text import to_bytes, to_text
from ansible.utils.display import Display
try:
from scp import SCPClient
@ -33,11 +33,7 @@ try:
except ImportError:
HAS_SCP = False
try:
from __main__ import display
except ImportError:
from ansible.utils.display import Display
display = Display()
display = Display()
def enable_mode(func):