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from scrapy.commands import BaseRunSpiderCommand
from scrapy.exceptions import UsageError
class Command(BaseRunSpiderCommand):
requires_project = True
def syntax(self):
return "[options] <spider>"
def short_desc(self):
return "Run a spider"
def run(self, args, opts):
if len(args) < 1:
raise UsageError()
elif len(args) > 1:
raise UsageError("running 'scrapy crawl' with more than one spider is no longer supported")
spname = args[0]
crawl_defer = self.crawler_process.crawl(spname, **opts.spargs)
if getattr(crawl_defer, 'result', None) is not None and issubclass(crawl_defer.result.type, Exception):
self.exitcode = 1
else:
self.crawler_process.start()
if (
self.crawler_process.bootstrap_failed
or hasattr(self.crawler_process, 'has_exception') and self.crawler_process.has_exception
):
self.exitcode = 1
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