mirror of
https://github.com/thegeeklab/ansible-later.git
synced 2024-11-14 17:20:39 +00:00
84 lines
2.3 KiB
Python
84 lines
2.3 KiB
Python
|
"""
|
||
|
|
Tracing utils
|
||
|
|
"""
|
||
|
|
from .callers import _Result
|
||
|
|
|
||
|
|
|
||
|
|
class TagTracer(object):
|
||
|
|
def __init__(self):
|
||
|
|
self._tag2proc = {}
|
||
|
|
self.writer = None
|
||
|
|
self.indent = 0
|
||
|
|
|
||
|
|
def get(self, name):
|
||
|
|
return TagTracerSub(self, (name,))
|
||
|
|
|
||
|
|
def format_message(self, tags, args):
|
||
|
|
if isinstance(args[-1], dict):
|
||
|
|
extra = args[-1]
|
||
|
|
args = args[:-1]
|
||
|
|
else:
|
||
|
|
extra = {}
|
||
|
|
|
||
|
|
content = " ".join(map(str, args))
|
||
|
|
indent = " " * self.indent
|
||
|
|
|
||
|
|
lines = ["%s%s [%s]\n" % (indent, content, ":".join(tags))]
|
||
|
|
|
||
|
|
for name, value in extra.items():
|
||
|
|
lines.append("%s %s: %s\n" % (indent, name, value))
|
||
|
|
return lines
|
||
|
|
|
||
|
|
def processmessage(self, tags, args):
|
||
|
|
if self.writer is not None and args:
|
||
|
|
lines = self.format_message(tags, args)
|
||
|
|
self.writer("".join(lines))
|
||
|
|
try:
|
||
|
|
self._tag2proc[tags](tags, args)
|
||
|
|
except KeyError:
|
||
|
|
pass
|
||
|
|
|
||
|
|
def setwriter(self, writer):
|
||
|
|
self.writer = writer
|
||
|
|
|
||
|
|
def setprocessor(self, tags, processor):
|
||
|
|
if isinstance(tags, str):
|
||
|
|
tags = tuple(tags.split(":"))
|
||
|
|
else:
|
||
|
|
assert isinstance(tags, tuple)
|
||
|
|
self._tag2proc[tags] = processor
|
||
|
|
|
||
|
|
|
||
|
|
class TagTracerSub(object):
|
||
|
|
def __init__(self, root, tags):
|
||
|
|
self.root = root
|
||
|
|
self.tags = tags
|
||
|
|
|
||
|
|
def __call__(self, *args):
|
||
|
|
self.root.processmessage(self.tags, args)
|
||
|
|
|
||
|
|
def setmyprocessor(self, processor):
|
||
|
|
self.root.setprocessor(self.tags, processor)
|
||
|
|
|
||
|
|
def get(self, name):
|
||
|
|
return self.__class__(self.root, self.tags + (name,))
|
||
|
|
|
||
|
|
|
||
|
|
class _TracedHookExecution(object):
|
||
|
|
def __init__(self, pluginmanager, before, after):
|
||
|
|
self.pluginmanager = pluginmanager
|
||
|
|
self.before = before
|
||
|
|
self.after = after
|
||
|
|
self.oldcall = pluginmanager._inner_hookexec
|
||
|
|
assert not isinstance(self.oldcall, _TracedHookExecution)
|
||
|
|
self.pluginmanager._inner_hookexec = self
|
||
|
|
|
||
|
|
def __call__(self, hook, hook_impls, kwargs):
|
||
|
|
self.before(hook.name, hook_impls, kwargs)
|
||
|
|
outcome = _Result.from_call(lambda: self.oldcall(hook, hook_impls, kwargs))
|
||
|
|
self.after(outcome, hook.name, hook_impls, kwargs)
|
||
|
|
return outcome.get_result()
|
||
|
|
|
||
|
|
def undo(self):
|
||
|
|
self.pluginmanager._inner_hookexec = self.oldcall
|