Host-specific Syncing [Examples]


With more servers there must also come more configuration files.

When you own more than one machine, you will eventually face the problem that one configuration file that works perfectly on one machine does not work well on another, be it due to their monitor sizes, network conditions, architectures, etc..

Hostname Suffix

What you want is to populate different configuration files for different machines. To allow multiple items with the same name name, dt-cli checks for an additional hostname suffix for every source item, and ignores those items which are meant for other hosts. dt-cli works with them quite intuitively. In short, it ignores items for other machines, and syncs items for current machine whenever possible.


Specifically, with hostname suffix defined, source items can be (virtually) categorized into 3 types:

  • Current: Items that are host-specific, and are for current machine only;
  • General: Items that are for all machines;
  • Other: Items that are host-specific, but are for some other machine.

dt-cli will sync items that are of type Current if they exist; if no Current item exists, dt-cli finds General items and sync them. Items of type Other are ignored for current machine.

A hostname suffix comprises of a hostname separator and a hostname:

  • Hostname separator: Defined in configuration file as hostname_sep, globally or per-group.
  • Hostname: Current machine's hostname.

Multiple Occurrences of hostname_sep

To eliminate ambiguity, the hostname separator should appear at most once in any of the source items. Multiple occurrences of the hostname separator will cause dt-cli to panic.

The default value (when not configured) for hostname_sep is @@. If a directory is marked as host-specific, all of its children will only be synced when the directory is for current machine.