third-party-mirrors/zfs_autobackup
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also support non gnu xargs

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This commit is contained in:
Edwin Eefting 2015-10-28 13:22:36 +01:00
parent f4ebd8ac38
commit 101c8d5525
1 changed files with 18 additions and 14 deletions
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zfs_autobackup
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@ -132,9 +132,11 @@ def zfs_get_selected_filesystems(ssh_to, backup_name):
"""destroy list of filesystems or snapshots"""
def zfs_destroy(ssh_to, filesystems):
debug("Destroying on {0}:\n{1}".format(ssh_to, "\n".join(filesystems)))
#zfs can only destroy one filesystem at once so we use xargs and stdin
run(ssh_to=ssh_to, test=args.test, input="\n".join(filesystems)+"\n", cmd=
[ "xargs", "-d", "\\n", "-n", "1", "zfs", "destroy", "-d" ]
run(ssh_to=ssh_to, test=args.test, input="\0".join(filesystems), cmd=
[ "xargs", "-0", "-n", "1", "zfs", "destroy", "-d" ]
)
@ -345,18 +347,6 @@ for source_filesystem in source_filesystems:
latest_target_snapshot=send_snapshot
#cleanup old target snapshots
target_destroys=[]
for target_filesystem in target_snapshots:
destroy_count=len(target_snapshots[target_filesystem])-args.keep_target
if destroy_count>0:
for snapshot in target_snapshots[target_filesystem][0:destroy_count-1]:
target_destroys.append(target_filesystem+"@"+snapshot)
if target_destroys:
verbose("Destroying old snapshots on target")
zfs_destroy(ssh_to=args.ssh_target, filesystems=target_destroys)
#cleanup old source snapshots
source_destroys=[]
for source_filesystem in source_snapshots:
@ -369,5 +359,19 @@ if source_destroys:
verbose("Destroying old snapshots on source")
zfs_destroy(ssh_to=args.ssh_source, filesystems=source_destroys)
#cleanup old target snapshots
target_destroys=[]
for target_filesystem in target_snapshots:
destroy_count=len(target_snapshots[target_filesystem])-args.keep_target
if destroy_count>0:
for snapshot in target_snapshots[target_filesystem][0:destroy_count-1]:
target_destroys.append(target_filesystem+"@"+snapshot)
if target_destroys:
verbose("Destroying old snapshots on target")
zfs_destroy(ssh_to=args.ssh_target, filesystems=target_destroys)
verbose("All done")