if fetch_config.app_name == "jsshell":
if fetch_config.os == "win" and fetch_config.bits == 64:
first_date = datetime.date(2014, 5, 27)
elif fetch_config.os == "linux" and "asan" in fetch_config.build_type:
first_date = datetime.date(2013, 9, 1)
else:
first_date = datetime.date(2012, 4, 18)
After Change
Compute the default date range (first, last) to bisect.
last_date = datetime.date.today()
first_date = datetime.date.today() - datetime.timedelta(days=365)
return first_date, last_date