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dupeguru/cocoalib/cocoa/__init__.py
Virgil Dupras ac32305532 Integrated the jobprogress library into hscommon
I have a fix to make in it and it's really silly to pretend that this
lib is of any use to anybody outside HS apps. Bringing it back here will
make things more simple.
2014-10-05 16:31:16 -04:00

119 lines
4.4 KiB
Python

# Created By: Virgil Dupras
# Created On: 2007-10-06
# Copyright 2014 Hardcoded Software (http://www.hardcoded.net)
# This software is licensed under the "BSD" License as described in the "LICENSE" file,
# which should be included with this package. The terms are also available at
# http://www.hardcoded.net/licenses/bsd_license
import logging
import time
import traceback
import sys
from .CocoaProxy import CocoaProxy
proxy = CocoaProxy()
def autoreleasepool(func):
def wrapper(*args, **kwargs):
proxy.createPool()
try:
func(*args, **kwargs)
finally:
proxy.destroyPool()
return wrapper
def as_fetch(as_list, as_type, step_size=1000):
"""When fetching items from a very big list through applescript, the connection with the app
will timeout. This function is to circumvent that. 'as_type' is the type of the items in the
list (found in appscript.k). If we don't pass it to the 'each' arg of 'count()', it doesn't work.
applescript is rather stupid..."""
result = []
# no timeout. default timeout is 60 secs, and it is reached for libs > 30k songs
item_count = as_list.count(each=as_type, timeout=0)
steps = item_count // step_size
if item_count % step_size:
steps += 1
logging.info('Fetching %d items in %d steps' % (item_count, steps))
# Don't forget that the indexes are 1-based and that the upper limit is included
for step in range(steps):
begin = step * step_size + 1
end = min(item_count, begin + step_size - 1)
if end > begin:
result += as_list[begin:end](timeout=0)
else: # When there is only one item, the stupid fuck gives it directly instead of putting it in a list.
result.append(as_list[begin:end](timeout=0))
time.sleep(.1)
logging.info('%d items fetched' % len(result))
return result
def extract_tb_noline(tb):
# Same as traceback.extract_tb(), but without line fetching
limit = 100
list = []
n = 0
while tb is not None and (limit is None or n < limit):
f = tb.tb_frame
lineno = tb.tb_lineno
co = f.f_code
filename = co.co_filename
name = co.co_name
list.append((filename, lineno, name, None))
tb = tb.tb_next
n = n+1
return list
def safe_format_exception(type, value, tb):
"""Format exception from type, value and tb and fallback if there's a problem.
In some cases in threaded exceptions under Cocoa, I get tracebacks targeting pyc files instead
of py files, which results in traceback.format_exception() trying to print lines from pyc files
and then crashing when trying to interpret that binary data as utf-8. We want a fallback in
these cases.
"""
try:
return traceback.format_exception(type, value, tb)
except Exception:
result = ['Traceback (most recent call last):\n']
result.extend(traceback.format_list(extract_tb_noline(tb)))
result.extend(traceback.format_exception_only(type, value))
return result
def install_exception_hook(github_url):
def report_crash(type, value, tb):
app_identifier = proxy.bundleIdentifier()
app_version = proxy.appVersion()
osx_version = proxy.osxVersion()
s = "Application Identifier: {}\n".format(app_identifier)
s += "Application Version: {}\n".format(app_version)
s += "Mac OS X Version: {}\n\n".format(osx_version)
s += ''.join(safe_format_exception(type, value, tb))
if LOG_BUFFER:
s += '\nRelevant Console logs:\n\n'
s += '\n'.join(LOG_BUFFER)
proxy.reportCrash_withGithubUrl_(s, github_url)
sys.excepthook = report_crash
# A global log buffer to use for error reports
LOG_BUFFER = []
class CocoaHandler(logging.Handler):
def emit(self, record):
msg = record.getMessage()
proxy.log_(msg)
LOG_BUFFER.append(msg)
del LOG_BUFFER[:-20]
def install_cocoa_logger():
logging.getLogger().addHandler(CocoaHandler())
def patch_threaded_job_performer():
# _async_run, under cocoa, has to be run within an autorelease pool to prevent leaks.
# You only need this patch is you use one of CocoaProxy's function (which allocate objc
# structures) inside a threaded job.
from hscommon.jobprogress.performer import ThreadedJobPerformer
ThreadedJobPerformer._async_run = autoreleasepool(ThreadedJobPerformer._async_run)