def run(self,
source_url,
repository_name,
changeset=None,
last_push_id=None):
cache_key = '{}:last_push_id'.format(repository_name)
if not last_push_id:
# get the last object seen from cache. this will
# reduce the number of pushes processed every time
last_push_id = cache.get(cache_key)
if not changeset and last_push_id:
startid_url = "{}&startID={}".format(source_url, last_push_id)
logger.info(
"Extracted last push for '%s', '%s', from cache, "
"attempting to get changes only from that point at: %s",
repository_name,
last_push_id,
startid_url,
)
# Use the cached ``last_push_id`` value (saved from the last time
# this API was called) for this repo. Use that value as the
# ``startID`` to get all new pushes from that point forward.
extracted_content = self.extract(startid_url)
if extracted_content['lastpushid'] < last_push_id:
# Push IDs from Mercurial are incremental. If we cached a value
# from one call to this API, and a subsequent call told us that
# the ``lastpushid`` is LOWER than the one we have cached, then
# the Mercurial IDs were reset.
# In this circumstance, we can't rely on the cached id, so must
# throw it out and get the latest 10 pushes.
logger.warning(
"Got a ``lastpushid`` value of %s lower than the cached value of %s "
"due to Mercurial repo reset. Getting latest changes for '%s' instead",
extracted_content['lastpushid'],
last_push_id,
repository_name,
)
cache.delete(cache_key)
extracted_content = self.extract(source_url)
else:
if changeset:
logger.info(
"Getting all pushes for '%s' corresponding to "
"changeset '%s'",
repository_name,
changeset,
)
extracted_content = self.extract(source_url + "&changeset=" +
changeset)
else:
logger.warning(
"Unable to get last push from cache for '%s', "
"getting all pushes",
repository_name,
)
extracted_content = self.extract(source_url)
pushes = extracted_content['pushes']
# `pushes` could be empty if there are no new ones since we last fetched
if not pushes:
return None
last_push_id = max(map(int, pushes.keys()))
last_push = pushes[str(last_push_id)]
top_revision = last_push["changesets"][-1]["node"]
errors = []
repository = Repository.objects.get(name=repository_name)
for push in pushes.values():
if not push['changesets']:
# A push without commits means it was marked as obsolete (see bug 1286426).
# Without them it's not possible to calculate the push revision required for ingestion.
continue
try:
store_push(repository, self.transform_push(push))
except Exception:
newrelic.agent.record_exception()
errors.append({
"project": repository,
"collection": "result_set",
"message": traceback.format_exc(),
})
if errors:
raise CollectionNotStoredException(errors)
if not changeset:
# only cache the last push if we're not fetching a specific changeset
cache.set(cache_key, last_push_id, ONE_WEEK_IN_SECONDS)
return top_revision
def run(self, source_url, repository_name, changeset=None, last_push_id=None):
if not last_push_id:
# get the last object seen from cache. this will
# reduce the number of pushes processed every time
last_push_id = cache.get("{0}:last_push_id".format(repository_name))
if not changeset and last_push_id:
startid_url = "{}&startID={}".format(source_url, last_push_id)
logger.info("Extracted last push for '%s', '%s', from cache, "
"attempting to get changes only from that point at: %s" %
(repository_name, last_push_id, startid_url))
# Use the cached ``last_push_id`` value (saved from the last time
# this API was called) for this repo. Use that value as the
# ``startID`` to get all new pushes from that point forward.
extracted_content = self.extract(startid_url)
if extracted_content['lastpushid'] < last_push_id:
# Push IDs from Mercurial are incremental. If we cached a value
# from one call to this API, and a subsequent call told us that
# the ``lastpushid`` is LOWER than the one we have cached, then
# the Mercurial IDs were reset.
# In this circumstance, we can't rely on the cached id, so must
# throw it out and get the latest 10 pushes.
logger.warning(("Got a ``lastpushid`` value of {} lower than "
"the cached value of {} due to Mercurial repo reset. "
"Getting latest changes for '{}' instead").format(
extracted_content['lastpushid'],
last_push_id,
repository_name
)
)
cache.delete("{0}:last_push_id".format(repository_name))
extracted_content = self.extract(source_url)
else:
if changeset:
logger.info("Getting all pushes for '%s' corresponding to "
"changeset '%s'" % (repository_name, changeset))
extracted_content = self.extract(source_url + "&changeset=" +
changeset)
else:
logger.warning("Unable to get last push from cache for '%s', "
"getting all pushes" % repository_name)
extracted_content = self.extract(source_url)
pushes = extracted_content['pushes']
# `pushes` could be empty if there are no new ones since we last fetched
if not pushes:
return None
last_push_id = max(map(lambda x: int(x), pushes.keys()))
last_push = pushes[str(last_push_id)]
top_revision = last_push["changesets"][-1]["node"]
errors = []
repository = Repository.objects.get(name=repository_name)
for push in pushes.values():
if not push['changesets']:
# A push without commits means it was marked as obsolete (see bug 1286426).
# Without them it's not possible to calculate the push revision required for ingestion.
continue
try:
store_push(repository, self.transform_push(push))
except Exception:
newrelic.agent.record_exception()
errors.append({
"project": repository,
"collection": "result_set",
"message": traceback.format_exc()
})
if errors:
raise CollectionNotStoredException(errors)
if not changeset:
# only cache the last push if we're not fetching a specific
# changeset
cache.set("{0}:last_push_id".format(repository_name), last_push_id)
return top_revision