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refactor

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This commit is contained in:
Daniel Langbein 2023-03-19 18:10:28 +01:00
parent a952ace8b4
commit ef3fe0fc96
4 changed files with 32 additions and 27 deletions
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2
src/subprocess_util/chunked_transfer/active_receive/btrfs_receive_chunks_active.py
View File

@ -38,7 +38,7 @@ def parse_args():
)
parser.add_argument('ssh_source',
help='Hostname of sending side; as configured in ~/.ssh/config.',
help='Hostname of sending side as configured in ~/.ssh/config.',
metavar='SSH_SOURCE'
)

4
src/subprocess_util/chunked_transfer/active_receive/btrfs_send_chunks_passive.py
View File

@ -34,7 +34,7 @@ def parse_args():
parser = argparse.ArgumentParser(prog='btrfs-send-chunks-passive')
parser.add_argument('-p',
help='Path to parent subvolume; forwarded to btrfs-send.',
help='Path to parent subvolume.',
dest='parent',
default=None,
type=Path,
@ -49,7 +49,7 @@ def parse_args():
)
parser.add_argument('--chunk-size',
help='Size in bytes; defaults to 128 MB.',
help='Size in bytes. Defaults to 128 MB.',
dest='chunk_size',
type=int,
default=128 * 1024 * 1024,

12
src/subprocess_util/chunked_transfer/active_send/btrfs_receive_chunks_passive.py
View File

@ -26,7 +26,7 @@ def parse_args():
parser.add_argument('--chunk-dir',
help='Chunks are saved in this directory. '
'Defaults to folder `<SUBVOLUME>.chunk` next to SUBVOLUME.',
'Defaults to directory `<TARGET_SUBVOLUME>.chunk` next to TARGET_SUBVOLUME.',
dest='chunk_dir',
type=Path,
metavar='CHUNK_DIR',
@ -36,18 +36,18 @@ def parse_args():
parser.add_argument('target_path',
help='Path where the subvolume will be created. '
'The last component of the path '
'must be equal to the name of the subvolume on the sending side.',
'must be equal to the name of CHILD_SUBVOLUME on the sending side.',
type=Path,
metavar='SUBVOLUME'
metavar='TARGET_SUBVOLUME'
)
args = parser.parse_args()
# Make all paths absolute. Set default values.
# target_path
args.target_path = args.target_path.absolute()
#
# chunk_dir
if args.chunk_dir is None:
# Default value
args.chunk_dir = args.target_path.parent.joinpath(f'{args.target_path.name}.chunk')
else:
args.chunk_dir = args.chunk_dir.absolute()

41
src/subprocess_util/chunked_transfer/active_send/btrfs_send_chunks_active.py
View File

@ -39,7 +39,9 @@ def parse_args():
parser = argparse.ArgumentParser(prog='btrfs-send-chunks-active')
parser.add_argument('-p',
help='Path to parent subvolume; forwarded to btrfs-send.',
help='Path to parent subvolume of CHILD_SUBVOLUME. '
'If given, '
'only the difference between PARENT_SUBVOLUME and CHILD_SUBVOLUME is transferred.',
dest='parent',
default=None,
type=Path,
@ -47,14 +49,14 @@ def parse_args():
)
parser.add_argument('--compressed-data',
help='Forwarded to btrfs-send.',
help='Reduce network bandwidth by compressing data.',
dest='compressed_data',
action='store_true',
default=False,
)
parser.add_argument('--chunk-size',
help='Size in bytes; defaults to 128 MB.',
help='Size in bytes. Defaults to 128 MB.',
dest='chunk_size',
type=int,
default=128 * 1024 * 1024,
@ -62,7 +64,7 @@ def parse_args():
parser.add_argument('--chunk-dir',
help='Chunks are saved in this directory. '
'Defaults to folder `<CHILD_SUBVOLUME>.chunk` next to CHILD_SUBVOLUME.',
'Defaults to directory `<CHILD_SUBVOLUME>.chunk` next to CHILD_SUBVOLUME.',
dest='chunk_dir',
type=Path,
metavar='CHUNK_DIR',
@ -70,9 +72,9 @@ def parse_args():
)
parser.add_argument('--target-chunk-dir',
help='Chunks are saved in this directory on SSH_TARGET. '
help='Chunks are saved in this directory on the receiving side. '
'Must be an absolute path. '
'Defaults to directory `<TARGET_PATH>.chunk` next to TARGET_PATH.',
'Defaults to directory `<TARGET_SUBVOLUME>.chunk` next to TARGET_SUBVOLUME.',
dest='target_chunk_dir',
type=Path,
metavar='TARGET_CHUNK_DIR',
@ -80,43 +82,46 @@ def parse_args():
)
parser.add_argument('child',
help='Path to child subvolume. Forwarded to btrfs-send.',
help='Path to child subvolume. '
'This subvolume gets replicated at TARGET_SUBVOLUME on the receiving side.',
type=Path,
metavar='CHILD_SUBVOLUME'
)
parser.add_argument('ssh_target',
help='Hostname of target computer; as configured in ~/.ssh/config.',
help='Hostname of receiving side as configured in ~/.ssh/config.',
metavar='SSH_TARGET'
)
parser.add_argument('target_path',
help='Absolute path to the read-only subvolume to be created on SSH_TARGET.',
help='Absolute path to TARGET_SUBVOLUME on the receiving side.',
type=Path,
metavar='TARGET_PATH'
metavar='TARGET_SUBVOLUME'
)
args = parser.parse_args()
# Make all paths absolute. Set default values.
# child
args.child = args.child.absolute()
#
# target_path
if not args.target_path.is_absolute():
raise ValueError('TARGET_PATH must be absolute')
#
raise ValueError('TARGET_SUBVOLUME must be absolute')
# chunk_dir
if args.chunk_dir is None:
# Default value
args.chunk_dir = args.child.parent.joinpath(f'{args.child.name}.chunk')
else:
args.chunk_dir = args.chunk_dir.absolute()
#
# target_chunk_dir
if args.target_chunk_dir is None:
# Default value
args.target_chunk_dir = args.target_path.parent.joinpath(f'{args.target_path.name}.chunk')
else:
if not args.target_chunk_dir.is_absolute():
raise ValueError('TARGET_CHUNK_DIR must be absolute')
#
# parent
if args.parent is not None:
args.parent = args.parent.absolute()