def execute(self, args, opts):
task = None
if opts.task_id:
task = Task().load(id=opts.task_id)
if opts.task_name:
task = Task().next(name=opts.task_name)
if task or len(args):
if task:
domain = task.domain
else:
domain = args[0]
spider = spiders.fromdomain(domain)
scrapymanager.configure()
if opts.child:
def _stop():
pass
# monkeypatching stop command to prevent stoping prematurely in child mode
scrapymanager.stop = _stop
if not task.locked:
task.lock()
self.crawl(spider, task)
scrapyengine.start()
else:
log.msg('You must specify atleast 1 domain', level=log.ERROR)
def run(self):
self.port = start_test_site()
self.portno = self.port.getHost().port
self.spider = TestSpider()
if self.spider:
self.spider.start_urls = [
self.geturl("/"),
self.geturl("/redirect"),
]
dispatcher.connect(self.record_signal, signals.engine_started)
dispatcher.connect(self.record_signal, signals.engine_stopped)
dispatcher.connect(self.record_signal, signals.spider_opened)
dispatcher.connect(self.record_signal, signals.spider_idle)
dispatcher.connect(self.record_signal, signals.spider_closed)
dispatcher.connect(self.item_scraped, signals.item_scraped)
dispatcher.connect(self.request_received, signals.request_received)
dispatcher.connect(self.response_downloaded, signals.response_downloaded)
scrapymanager.configure()
scrapymanager.queue.append_spider(self.spider)
scrapymanager.start()
self.port.stopListening()
self.wasrun = True
def run(self):
if not self.portno:
self.port = start_test_site()
self.portno = self.port.getHost().port
else:
self.port = start_test_site(self.portno)
self.spider.start_urls = [self.geturl("/")]
scrapymanager.configure()
scrapymanager.runonce(self.spider)
def run(self, args, opts):
if not len(args) == 1 or not is_url(args[0]):
return False
responses = [] # to collect downloaded responses
request = Request(args[0], callback=responses.append)
if opts.spider:
try:
spider = spiders.create(opts.spider)
except KeyError:
log.msg("Unable to find spider: %s" % opts.spider, log.ERROR)
return
else:
spider = spiders.create_for_request(request)
scrapymanager.configure()
scrapymanager.queue.append_request(request, spider)
scrapymanager.start()
if not responses:
log.msg("No response returned", log.ERROR, spider=spider)
return
# now process response
# - if callbacks defined then call each one print results
# - if --rules option given search for matching spider's rule
# - default print result using default 'parse' spider's callback
response = responses[0]
if self.callbacks:
# apply each callback
for callback in self.callbacks:
items, links = self.run_callback(spider, response, callback, args, opts)
self.print_results(items, links, callback, opts)
elif opts.rules:
# search for matching spider's rule
if hasattr(spider, "rules") and spider.rules:
items, links = [], []
for rule in spider.rules:
if rule.link_extractor.matches(response.url) and rule.callback:
items, links = self.run_callback(spider, response, rule.callback, args, opts)
self.print_results(items, links, rule.callback, opts)
# first-match rule breaks rules loop
break
else:
log.msg(
'No rules found for spider "%s", ' "please specify a callback for parsing" % spider.name, log.ERROR
)
else:
# default callback 'parse'
items, links = self.run_callback(spider, response, "parse", args, opts)
self.print_results(items, links, "parse", opts)
def __init__(self, enable_log=False, stop_on_error=False, silence_errors=False, \
settings=None):
self.stop_on_error = stop_on_error
self.silence_errors = silence_errors
# disable offsite middleware (by default) because it prevents free crawling
if settings is not None:
settings.overrides.update(settings)
scrapy_settings.overrides['SPIDER_MIDDLEWARES'] = {
'scrapy.contrib.spidermiddleware.offsite.OffsiteMiddleware': None}
scrapy_settings.overrides['LOG_ENABLED'] = enable_log
scrapymanager.configure()
dispatcher.connect(self._logmessage_received, signal=log.logmessage_received)
def execute(argv=None):
if argv is None:
argv = sys.argv
cmds = _get_commands_dict()
cmdname = _get_command_name(argv)
_update_default_settings("scrapy.conf.commands", cmdname)
_update_default_settings(settings["COMMANDS_SETTINGS_MODULE"], cmdname)
parser = optparse.OptionParser(
formatter=optparse.TitledHelpFormatter(), conflict_handler="resolve", add_help_option=False
)
if cmdname in cmds:
cmd = cmds[cmdname]
cmd.add_options(parser)
opts, args = parser.parse_args(args=argv[1:])
cmd.process_options(args, opts)
parser.usage = "%%prog %s %s" % (cmdname, cmd.syntax())
parser.description = cmd.long_desc()
if cmd.requires_project and not settings.settings_module:
print "Error running: scrapy-ctl.py %s\n" % cmdname
print "Cannot find project settings module in python path: %s" % settings.settings_module_path
sys.exit(1)
if opts.help:
parser.print_help()
sys.exit()
elif not cmdname:
cmd = ScrapyCommand()
cmd.add_options(parser)
opts, args = parser.parse_args(args=argv)
cmd.process_options(args, opts)
_print_usage(settings.settings_module)
sys.exit(2)
else:
print "Unknown command: %s\n" % cmdname
print 'Use "scrapy-ctl.py -h" for help'
sys.exit(2)
del args[0] # remove command name from args
send_catch_log(signal=command_executed, cmdname=cmdname, cmdobj=cmd, args=args, opts=opts)
from scrapy.core.manager import scrapymanager
scrapymanager.configure(control_reactor=True)
ret = _run_command(cmd, args, opts)
if ret is False:
parser.print_help()
def run(self, args, opts):
if len(args) != 1 or not is_url(args[0]):
return False
cb = lambda x: self._print_response(x, opts)
request = Request(args[0], callback=cb, dont_filter=True)
spider = None
if opts.spider:
try:
spider = spiders.create(opts.spider)
except KeyError:
log.msg("Could not find spider: %s" % opts.spider, log.ERROR)
scrapymanager.configure()
scrapymanager.queue.append_request(request, spider, \
default_spider=BaseSpider('default'))
scrapymanager.start()
def main():
"""Install item signal and run scrapy"""
@connect(signals.item_passed)
def catch_item(sender, item, **kwargs):
print "Got:", item
# shut off log
settings.overrides['LOG_ENABLED'] = False
scrapymanager.configure()
spider = MySpider()
scrapymanager.queue.append_spider(spider)
print "STARTING ENGINE"
scrapymanager.start()
print "ENGINE STOPPED"
def run(self):
self.running = True
scrapymanager.configure(control_reactor=False)
scrapymanager.start()
reactor.run(installSignalHandlers=False)
def run(self):
self.running = True
scrapymanager.configure(control_reactor=False)
scrapymanager.start()
reactor.run(installSignalHandlers=False)
