mirror of
https://github.com/numtide/treefmt.git
synced 2024-09-11 17:07:44 +03:00
105 lines
3.1 KiB
Python
105 lines
3.1 KiB
Python
import datetime
|
|
import os
|
|
import sys
|
|
import traceback
|
|
|
|
if sys.version_info[0] == 3:
|
|
|
|
def to_str(value):
|
|
return value.decode(sys.getfilesystemencoding())
|
|
|
|
def execfile(path, global_dict):
|
|
"""Execute a file"""
|
|
with open(path, "r") as f:
|
|
code = f.read()
|
|
code = code.replace("\r\n", "\n") + "\n"
|
|
exec(code, global_dict)
|
|
|
|
else:
|
|
|
|
def to_str(value):
|
|
return value.encode(sys.getfilesystemencoding())
|
|
|
|
|
|
def log(txt):
|
|
"""Logs fatal errors to a log file if WSGI_LOG env var is defined"""
|
|
log_file = os.environ.get("WSGI_LOG")
|
|
if log_file:
|
|
f = open(log_file, "a+")
|
|
try:
|
|
f.write("%s: %s" % (datetime.datetime.now(), txt))
|
|
finally:
|
|
f.close()
|
|
|
|
|
|
def get_wsgi_handler(handler_name):
|
|
if not handler_name:
|
|
raise Exception("WSGI_ALT_VIRTUALENV_HANDLER env var must be set")
|
|
|
|
if not isinstance(handler_name, str):
|
|
handler_name = to_str(handler_name)
|
|
|
|
module_name, _, callable_name = handler_name.rpartition(".")
|
|
should_call = callable_name.endswith("()")
|
|
callable_name = callable_name[:-2] if should_call else callable_name
|
|
name_list = [(callable_name, should_call)]
|
|
handler = None
|
|
last_tb = ""
|
|
|
|
while module_name:
|
|
try:
|
|
handler = __import__(module_name, fromlist=[name_list[0][0]])
|
|
last_tb = ""
|
|
for name, should_call in name_list:
|
|
handler = getattr(handler, name)
|
|
if should_call:
|
|
handler = handler()
|
|
break
|
|
except ImportError:
|
|
module_name, _, callable_name = module_name.rpartition(".")
|
|
should_call = callable_name.endswith("()")
|
|
callable_name = callable_name[:-2] if should_call else callable_name
|
|
name_list.insert(0, (callable_name, should_call))
|
|
handler = None
|
|
last_tb = ": " + traceback.format_exc()
|
|
|
|
if handler is None:
|
|
raise ValueError('"%s" could not be imported%s' % (handler_name, last_tb))
|
|
|
|
return handler
|
|
|
|
|
|
activate_this = os.getenv("WSGI_ALT_VIRTUALENV_ACTIVATE_THIS")
|
|
if not activate_this:
|
|
raise Exception("WSGI_ALT_VIRTUALENV_ACTIVATE_THIS is not set")
|
|
|
|
|
|
def get_virtualenv_handler():
|
|
log("Activating virtualenv with %s\n" % activate_this)
|
|
execfile(activate_this, dict(__file__=activate_this))
|
|
|
|
log("Getting handler %s\n" % os.getenv("WSGI_ALT_VIRTUALENV_HANDLER"))
|
|
handler = get_wsgi_handler(os.getenv("WSGI_ALT_VIRTUALENV_HANDLER"))
|
|
log("Got handler: %r\n" % handler)
|
|
return handler
|
|
|
|
|
|
def get_venv_handler():
|
|
log("Activating venv with executable at %s\n" % activate_this)
|
|
import site
|
|
|
|
sys.executable = activate_this
|
|
old_sys_path, sys.path = sys.path, []
|
|
|
|
site.main()
|
|
|
|
sys.path.insert(0, "")
|
|
for item in old_sys_path:
|
|
if item not in sys.path:
|
|
sys.path.append(item)
|
|
|
|
log("Getting handler %s\n" % os.getenv("WSGI_ALT_VIRTUALENV_HANDLER"))
|
|
handler = get_wsgi_handler(os.getenv("WSGI_ALT_VIRTUALENV_HANDLER"))
|
|
log("Got handler: %r\n" % handler)
|
|
return handler
|