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# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.
import importlib
import shutil
import tempfile
from pathlib import Path
from mozperftest.utils import MachLogger, download_file
_LOADED_MODULES = {}
class Hooks(MachLogger):
def __init__(self, mach_cmd, hook_module=None):
MachLogger.__init__(self, mach_cmd)
self.tmp_dir = tempfile.mkdtemp()
if hook_module is None:
self._hooks = None
return
if not isinstance(hook_module, Path):
if hook_module.startswith("http"):
target = Path(self.tmp_dir, hook_module.split("/")[-1])
hook_module = download_file(hook_module, target)
else:
hook_module = Path(hook_module)
if hook_module.exists():
path = str(hook_module)
if path not in _LOADED_MODULES:
spec = importlib.util.spec_from_file_location("hooks", path)
hook_module = importlib.util.module_from_spec(spec)
spec.loader.exec_module(hook_module)
_LOADED_MODULES[path] = hook_module
self._hooks = _LOADED_MODULES[path]
else:
raise IOError("Could not find hook module. %s" % str(hook_module))
def cleanup(self):
if self.tmp_dir is None:
return
shutil.rmtree(self.tmp_dir)
self.tmp_dir = None
def exists(self, name):
if self._hooks is None:
return False
return hasattr(self._hooks, name)
def get(self, name):
if self._hooks is None:
return False
return getattr(self._hooks, name)
def run(self, name, *args, **kw):
if self._hooks is None:
return
if not hasattr(self._hooks, name):
return
self.debug("Running hook %s" % name)
return getattr(self._hooks, name)(*args, **kw)
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