def download_pom(self, artifact):
if artifact in self.pom_not_found_cache:
return None
if artifact in self.pom_cache:
return self.pom_cache[artifact]
if artifact.is_snapshot():
snapshot_info = self.get_snapshot_info(artifact)
if snapshot_info is not None:
ts, bn = snapshot_info
artifact.timestamp = ts
artifact.build_number = bn
maven_path = self.get_artifact_uri(artifact, 'pom')
try:
logger.info('[Checking] pom file %s' % maven_path)
data = download_string(maven_path)
# # cache
self.pom_cache[artifact] = data
return data
except DownloadException:
self.pom_not_found_cache.append(artifact)
logger.info('[Skipped] Pom file not found at %s' % maven_path)
return None
def get_snapshot_info(self, artifact):
metadata_path = self.get_metadata_path(artifact)
try:
data = download_string(metadata_path)
eletree = ElementTree.fromstring(data)
timestamp = eletree.findtext('versioning/snapshot/timestamp')
build_number = eletree.findtext('versioning/snapshot/buildNumber')
return (timestamp, build_number)
except DownloadException:
return None
def fetch_checksum(self, artifact, checksum_type='sha1'):
""" return pre calculated checksum value, only avaiable for remote repos
"""
assert checksum_type in ['sha1', 'md5']
checksum_url = '%s/%s.%s' % (self.uri.strip('/'), artifact.maven_name(),
checksum_type)
try:
data = download_string(checksum_url)
return data
except DownloadException:
return None
