def insert_item(self, data, src, target, pedigree, contentsource):
"""Overridable from `BasicMirrorWriter`."""
item = products_exdata(src, pedigree)
checksums = item_checksums(data)
tag = checksums["sha256"]
size = data["size"]
ftype = item["ftype"]
filename = os.path.basename(item["path"])
if ftype == "archive.tar.xz":
links = extract_archive_tar(
self.store, filename, tag, checksums, size, contentsource
)
else:
links = insert_file(
self.store, filename, tag, checksums, size, contentsource
)
osystem = get_os_from_product(item)
# link_resources creates a hardlink for every subarch. Every Ubuntu
# product in a SimpleStream contains a list of subarches which list
# what subarches are a subset of that subarch. For example Xenial
# ga-16.04 has the subarches list hwe-{p,q,r,s,t,u,v,w},ga-16.04.
# Kernel flavors are the same arch, the only difference is the kernel
# config. So ga-16.04-lowlatency has the same subarch list as ga-16.04.
# If we create hard links for all subarches a kernel flavor may
# overwrite the generic kernel hard link. This happens if a kernel
# flavor is processed after the generic kernel. Since MAAS doesn't use
# the other hard links only create hard links for the subarch of the
# product we have and a rolling link if it's a rolling kernel.
if "subarch" in item:
# MAAS uses the 'generic' subarch when it doesn't know which
# subarch to use. This happens during enlistment and commissioning.
# Allow the 'generic' kflavor to own the 'generic' hardlink. The
# generic kernel should always be the ga kernel for xenial+,
# hwe-<first letter of release> for older releases.
if item.get("kflavor") == "generic" and (
item["subarch"].startswith("ga-")
or item["subarch"] == "hwe-%s" % item["release"][0]
):
subarches = {item["subarch"], "generic"}
else:
subarches = {item["subarch"]}
else:
subarches = {"generic"}
if item.get("rolling", False):
subarch_parts = item["subarch"].split("-")
subarch_parts[1] = "rolling"
subarches.add("-".join(subarch_parts))
link_resources(
snapshot_path=self.root_path,
links=links,
osystem=osystem,
arch=item["arch"],
release=item["release"],
label=item["label"],
subarches=subarches,
bootloader_type=item.get("bootloader-type"),
)
def insert_item(self, data, src, target, pedigree, contentsource):
"""Overridable from `BasicMirrorWriter`."""
item = products_exdata(src, pedigree)
checksums = item_checksums(data)
tag = checksums['sha256']
size = data['size']
ftype = item['ftype']
filename = os.path.basename(item['path'])
if ftype == 'archive.tar.xz':
links = extract_archive_tar(
self.store, filename, tag, checksums, size, contentsource)
elif ftype == 'root-image.gz':
links = insert_root_image(
self.store, tag, checksums, size, contentsource)
else:
links = insert_file(
self.store, filename, tag, checksums, size, contentsource)
osystem = get_os_from_product(item)
# link_resources creates a hardlink for every subarch. Every Ubuntu
# product in a SimpleStream contains a list of subarches which list
# what subarches are a subset of that subarch. For example Xenial
# ga-16.04 has the subarches list hwe-{p,q,r,s,t,u,v,w},ga-16.04.
# Kernel flavors are the same arch, the only difference is the kernel
# config. So ga-16.04-lowlatency has the same subarch list as ga-16.04.
# If we create hard links for all subarches a kernel flavor may
# overwrite the generic kernel hard link. This happens if a kernel
# flavor is processed after the generic kernel. Since MAAS doesn't use
# the other hard links only create hard links for the subarch of the
# product we have and a rolling link if it's a rolling kernel.
if 'subarch' in item:
# MAAS uses the 'generic' subarch when it doesn't know which
# subarch to use. This happens during enlistment and commissioning.
# Allow the 'generic' kflavor to own the 'generic' hardlink.
if item.get('kflavor') == 'generic':
subarches = {item['subarch'], 'generic'}
else:
subarches = {item['subarch']}
else:
subarches = {'generic'}
if item.get('rolling', False):
subarch_parts = item['subarch'].split('-')
subarch_parts[1] = 'rolling'
subarches.add('-'.join(subarch_parts))
link_resources(
snapshot_path=self.root_path, links=links,
osystem=osystem, arch=item['arch'], release=item['release'],
label=item['label'], subarches=subarches,
bootloader_type=item.get('bootloader-type'))