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OS X Build: Redirect stdout/stderr to /dev/null instead of ASL since ASL is flaky on some OS X machines

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This commit is contained in:
Kovid Goyal 2016-04-23 17:30:14 +05:30
parent 7611f708f5
commit 20ddc371aa
1 changed files with 4 additions and 72 deletions
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76
setup/installer/osx/app/site.py
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@ -125,64 +125,6 @@ def add_calibre_vars(base):
if dv and os.path.exists(dv):
sys.path.insert(0, os.path.abspath(dv))
def setup_asl():
# On Mac OS X 10.8 or later the contents of stdout and stderr
# do not end up in Console.app
# This function detects if "asl_log_descriptor" is available
# (introduced in 10.8), and if it is configures ASL to redirect
# all writes to stdout/stderr to Console.app
import ctypes
try:
syslib = ctypes.CDLL("/usr/lib/libSystem.dylib")
except EnvironmentError:
import ctypes.util
syslib = ctypes.CDLL(ctypes.util.find_library('System'))
asl_log_descriptor_proto = ctypes.CFUNCTYPE(ctypes.c_int, ctypes.c_void_p, ctypes.c_void_p, ctypes.c_int, ctypes.c_int, ctypes.c_uint32)
try:
asl_log_descriptor = asl_log_descriptor_proto(('asl_log_descriptor', syslib), ((1, 'asl'), (1, 'msg'), (1, 'level'), (1, 'descriptor'), (1, 'fd_type')))
except AttributeError:
# OS X < 10.8 no need to redirect
return
asl_open_proto = ctypes.CFUNCTYPE(ctypes.c_void_p, ctypes.c_char_p, ctypes.c_char_p, ctypes.c_uint32)
asl_open = asl_open_proto(('asl_open', syslib), ((1, "ident"), (1, "facility"), (1, 'opts')))
asl_new_proto = ctypes.CFUNCTYPE(ctypes.c_void_p, ctypes.c_uint32)
asl_new = asl_new_proto(('asl_new', syslib), ((1, "type"),))
asl_set_proto = ctypes.CFUNCTYPE(ctypes.c_int, ctypes.c_void_p, ctypes.c_char_p, ctypes.c_char_p)
asl_set = asl_set_proto(('asl_set', syslib), ((1, "msg"), (1, "key"), (1, "value")))
CONSOLE = b'com.apple.console'
# Taken from asl.h
ASL_OPT_NO_DELAY = 2
ASL_TYPE_MSG = 0
ASL_KEY_FACILITY = b'Facility'
ASL_KEY_LEVEL = b'Level'
ASL_KEY_READ_UID = b'ReadUID'
ASL_STRING_NOTICE = b'Notice'
ASL_LEVEL_NOTICE = 4
ASL_LOG_DESCRIPTOR_WRITE = 2
cl = asl_open(ident=getattr(sys, 'calibre_basename', b'calibre'), facility=CONSOLE, opts=ASL_OPT_NO_DELAY)
if cl is None:
return
# Create an ASL template message for the STDOUT/STDERR redirection.
msg = asl_new(ASL_TYPE_MSG)
if msg is None:
return
if asl_set(msg, ASL_KEY_FACILITY, CONSOLE) != 0:
return
if asl_set(msg, ASL_KEY_LEVEL, ASL_STRING_NOTICE) != 0:
return
if asl_set(msg, ASL_KEY_READ_UID, bytes('%d' % os.getuid())) != 0:
return
# Redirect the STDOUT/STDERR file descriptors to ASL
if asl_log_descriptor(cl, msg, ASL_LEVEL_NOTICE, sys.stdout.fileno(), ASL_LOG_DESCRIPTOR_WRITE) != 0:
return
if asl_log_descriptor(cl, msg, ASL_LEVEL_NOTICE, sys.stderr.fileno(), ASL_LOG_DESCRIPTOR_WRITE) != 0:
return
return True
def nuke_stdout():
# Redirect stdout, stdin and stderr to /dev/null
from calibre.constants import plugins
@ -190,14 +132,6 @@ def nuke_stdout():
def main():
global __file__
asl_ok = True
if sys.calibre_is_gui_app and not (
sys.stdout.isatty() or sys.stderr.isatty() or sys.stdin.isatty()):
try:
asl_ok = setup_asl()
except:
asl_ok = False
# Needed on OS X <= 10.8, which passes -psn_... as a command line arg when
# starting via launch services
@ -213,10 +147,8 @@ def main():
add_calibre_vars(base)
addsitedir(sys.site_packages)
if not asl_ok:
try:
nuke_stdout()
except Exception:
import traceback
traceback.print_exc()
if sys.calibre_is_gui_app and not (
sys.stdout.isatty() or sys.stderr.isatty() or sys.stdin.isatty()):
nuke_stdout()
return run_entry_point()