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all: allow filtering by release, turn --delete into --force

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This enhances the `all` subcommand with some features inspired
by what we need to do during Fedora branching (because I'm
writing an SOP and realized what you have to do with createhdds
at branch time is kinda dumb and hard to write down). This lets
you pass a `--rel` arg to the `all` subcommand which limits its
operation to a specific release (by number only), so we can say
"rebuild all images for release XX", which is exactly what we
need to do (for two releases) at branch time. Also, it turns
`--delete` (which deleted all images *before* the creation step)
into `--force` (which just forces the creation even if the image
already exists). This is much more sensible; we avoid having a
(potentially quite long) period where the image doesn't exist at
all, and the image not existing at all if the build fails. I
think `--delete` is from the time before I implemented the
mechanism to allow rebuild of an existing image (by building it
under a temporary rename and renaming on completion).

Signed-off-by: Adam Williamson <awilliam@redhat.com>
This commit is contained in:
Adam Williamson 2025-02-10 10:58:10 -08:00
parent 545ef737da
commit 6caf3cf01d
1 changed files with 29 additions and 17 deletions
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46
createhdds.py
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@ -657,29 +657,35 @@ def check(hdds, nextrel=None):
def cli_all(args, hdds):
"""Function for the CLI 'all' subcommand. Creates all images. If
args.delete is set, blows all existing images away and recreates
them; otherwise it will just fill in missing or outdated images.
If args.clean is set, also wipes 'unknown' images.
args.force is set, rebuild all images; otherwise it will just fill
in missing or outdated images. If args.clean is set, also wipes
'unknown' images. If args.rel is non-zero, operation is limited to
the specified release number; implicitly, images without a release
number (i.e. guestfs images) are skipped.
"""
if args.delete:
logger.info("Removing all images...")
delete_all()
# handle renamed images (see do_renames docstring)
do_renames(hdds)
# call check() to find out what we need to do
# call check() to find missing, outdated, unknown images
(missing, outdated, unknown) = check(hdds, nextrel=args.nextrel)
if args.force or args.delete:
# rebuild all images
todo = get_all_images(hdds, nextrel=args.nextrel)
else:
# 'missing' plus 'outdated' is all the images we need to build
todo = missing + outdated
# wipe 'unknown' images if requested
if args.clean:
clean(unknown)
# 'missing' plus 'outdated' is all the images we need to build; if
# args.delete was set, all images will be in this list
missing.extend(outdated)
for (num, img) in enumerate(missing, 1):
logger.info("Creating image %s...[%s/%s]", img.filename, str(num), str(len(missing)))
# if args.rel was passed, limit to images for that release
if args.rel:
todo = [img for img in todo if (hasattr(img, "release") and img.release == args.rel)]
for (num, img) in enumerate(todo, 1):
logger.info("Creating image %s...[%s/%s]", img.filename, str(num), str(len(todo)))
img.create(args.textinst)
def cli_check(args, hdds):
@ -692,7 +698,7 @@ def cli_check(args, hdds):
if args.rename:
do_renames(hdds)
(missing, outdated, unknown) = check(hdds, nextrel=args.nextrel)
(missing, outdated, unknown) = check(hdds, nextrel=args.nextrel, rel=args.rel)
if missing:
print("Missing images: {0}".format(', '.join([img.filename for img in missing])))
if outdated:
@ -781,9 +787,6 @@ def parse_args(hdds):
parser_all = subparsers.add_parser(
'all', description="Ensure all images are present and up-to-date.")
parser_all.add_argument(
'-d', '--delete', help="Delete and re-build all images",
action='store_true')
parser_all.add_argument(
'-c', '--clean', help="Remove unknown (usually old) images",
action='store_true')
@ -792,6 +795,15 @@ def parse_args(hdds):
"- this determines what releases some images will be built for. If "
"not set or set to 0, createhdds will try to discover it when needed",
type=int, default=0)
parser_all.add_argument(
'-r', '--rel', help="Limit operation to only the release specified (by number or 'eln')",
type=str, default="")
parser_all.add_argument(
'-f', '--force', help="Rebuild images even if they exist and are up to date",
action='store_true')
parser_all.add_argument(
'-d', '--delete', help="Deprecated, does the same as --force",
action='store_true', deprecated=True)
parser_all.set_defaults(func=cli_all)
parser_check = subparsers.add_parser(