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feat: Add copy.substituteOnDestination #10

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feat: Add copy.substituteOnDestination #10

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11 changes: 10 additions & 1 deletion modules/nixops4Resource/nixos.nix
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Original file line number Diff line number Diff line change
Expand Up @@ -46,6 +46,15 @@ in
type = types.str;
default = "";
};
copy.substituteOnDestination = mkOption {
type = types.bool;
default = true;
description = ''
Whether to try substitutes on the destination store when copying.
This may be faster if the link between the local and remote machines is
slower than the link between the remote machine and its substituters.
'';
};
sudo.enable = mkOption {
type = types.bool;
default = config.ssh.user != "root";
Expand Down Expand Up @@ -84,7 +93,7 @@ in
${config.ssh.host} ${config.ssh.hostPublicKey}
''
} "${lib.strings.escapeShellArg "${config.ssh.opts}"}
nix copy --to "ssh-ng://$0" "$1" --no-check-sigs --extra-experimental-features nix-command
nix copy --to "ssh-ng://$0" "$1" --no-check-sigs --extra-experimental-features nix-command${lib.optionalString config.copy.substituteOnDestination " --substitute-on-destination"}
ssh $NIX_SSHOPTS "$0" "${lib.optionalString config.sudo.enable "sudo "}$1/bin/apply switch"
''
(lib.optionalString (config.ssh.user != null) "${config.ssh.user}@" + config.ssh.host)
Expand Down