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c6029f9ab7
When the source is a remote host the archive is produced there, so it has to be compressed there too: compressing after copying it down would mean the uncompressed archive had already crossed the network, which is the cost this is meant to avoid. The only thing we can do on that host is run a command, so the matching compressor is invoked over ssh between the save and the copy. That is also why the set of formats is limited to algorithms available as a command of the same name. Two details worth stating. A shell reports 127 when it cannot find the command, which is worth reporting plainly as a host without the compressor installed; anything else, a failure to connect included, must not be reported that way, and a probe beforehand cannot make that distinction without also costing an extra connection. And the compressor removes its input only once it succeeds and may have written part of its output before giving up, so a failure cleans up both paths. Signed-off-by: Scott Callaway <github@scottcallaway.co.uk> |
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| .. | ||
| annotations | ||
| api | ||
| auth | ||
| autoupdate | ||
| bindings | ||
| channel | ||
| checkpoint | ||
| copy | ||
| criu | ||
| ctime | ||
| domain | ||
| emulation | ||
| env | ||
| errorhandling | ||
| farm | ||
| fileserver | ||
| inspect | ||
| k8s.io | ||
| logiface | ||
| lookup | ||
| machine | ||
| namespaces | ||
| parallel | ||
| pidhandle | ||
| ps | ||
| rctl | ||
| rootless | ||
| seccomp | ||
| selinux | ||
| signal | ||
| specgen | ||
| specgenutil | ||
| specgenutilexternal | ||
| syncmap | ||
| systemd | ||
| terminal | ||
| trust | ||
| util | ||