third-party-mirrors/zfs_autobackup
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Support for zstd-adapt

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This commit is contained in:
Patrick Hein 2021-08-18 23:08:00 +02:00
parent ce987328d9
commit 2843781aa6
3 changed files with 10 additions and 4 deletions
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6
README.md
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@ -619,9 +619,9 @@ optional arguments:
multiple times)
--recv-pipe COMMAND pipe zfs recv input through COMMAND (can be used
multiple times)
--compress TYPE Use compression during transfer, zstd-fast
recommended. (xz, pigz-slow, zstd-slow, zstd-fast,
lzo, gzip, pigz-fast, lz4)
--compress TYPE Use compression during transfer, defaults to zstd-adapt
if TYPE is not specified. (gzip, pigz-fast, pigz-slow,
zstd-fast, zstd-slow, zstd-adapt, xz, lzo, lz4)
--rate DATARATE Limit data transfer rate (e.g. 128K. requires
mbuffer.)
--buffer SIZE Add zfs send and recv buffers to smooth out IO bursts.

2
zfs_autobackup/ZfsAutobackup.py
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@ -129,7 +129,7 @@ class ZfsAutobackup:
help='pipe zfs send output through COMMAND (can be used multiple times)')
parser.add_argument('--recv-pipe', metavar="COMMAND", default=[], action='append',
help='pipe zfs recv input through COMMAND (can be used multiple times)')
parser.add_argument('--compress', metavar='TYPE', default=None, choices=compressors.choices(), help='Use compression during transfer, zstd-fast recommended. ({})'.format(", ".join(compressors.choices())))
parser.add_argument('--compress', metavar='TYPE', default=None, nargs='?', const='zstd-adapt', choices=compressors.choices(), help='Use compression during transfer, defaults to zstd-adapt if TYPE is not specified. ({})'.format(", ".join(compressors.choices())))
parser.add_argument('--rate', metavar='DATARATE', default=None, help='Limit data transfer rate (e.g. 128K. requires mbuffer.)')
parser.add_argument('--buffer', metavar='SIZE', default=None, help='Add zfs send and recv buffers to smooth out IO bursts. (e.g. 128M. requires mbuffer)')

6
zfs_autobackup/compressors.py
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@ -35,6 +35,12 @@ COMPRESS_CMDS = {
'dcmd': 'zstdmt',
'dargs': [ '-dc' ],
},
'zstd-adapt': {
'cmd': 'zstdmt',
'args': [ '--adapt' ],
'dcmd': 'zstdmt',
'dargs': [ '-dc' ],
},
'xz': {
'cmd': 'xz',
'args': [],