80 lines
2.2 KiB
Fish
80 lines
2.2 KiB
Fish
if test (count $argv) -ne 1
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echo "usage: deploy-to <host>" >&2
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return 2
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end
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set host $argv[1]
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git rev-parse --show-toplevel >/dev/null 2>&1
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or begin
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echo "deploy-to: run this from a git checkout" >&2
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return 2
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end
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set repository_root (git rev-parse --show-toplevel)
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or return $status
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set untracked_nix_files (git -C $repository_root ls-files --others --exclude-standard -- '*.nix' flake.nix flake.lock)
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if test (count $untracked_nix_files) -gt 0
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echo "deploy-to: warning: untracked Nix files are not part of Git flake evaluation" >&2
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printf ' %s\n' $untracked_nix_files >&2
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end
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set installable "$repository_root#nixosConfigurations.$host.config.system.build.toplevel"
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echo "deploy-to: building $installable" >&2
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set system_path (nix build --no-link --print-out-paths $installable)
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or begin
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echo "deploy-to: build failed for $host" >&2
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return $status
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end
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if test (count $system_path) -ne 1
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echo "deploy-to: expected one build output, got "(count $system_path) >&2
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return 1
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end
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set nar_file (mktemp --suffix=.nar)
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or return $status
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set remote_nar "/tmp/deploy-to-$host-"(date +%s)"-$fish_pid.nar"
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set closure_paths (nix-store -qR $system_path)
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or begin
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set query_status $status
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rm -f $nar_file
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echo "deploy-to: closure query failed for $host" >&2
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return $query_status
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end
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echo "deploy-to: exporting closure for $system_path" >&2
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nix-store --export $closure_paths >$nar_file
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or begin
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set export_status $status
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rm -f $nar_file
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echo "deploy-to: closure export failed for $host" >&2
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return $export_status
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end
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echo "deploy-to: copying closure archive to $host:$remote_nar" >&2
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scp $nar_file $host:$remote_nar
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set scp_status $status
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rm -f $nar_file
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if test $scp_status -ne 0
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echo "deploy-to: closure archive copy failed for $host" >&2
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return $scp_status
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end
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echo "deploy-to: importing closure on $host" >&2
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ssh -t $host "sudo sh -c 'nix-store --import < $remote_nar' && rm -f $remote_nar"
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or begin
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echo "deploy-to: closure import failed for $host" >&2
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return $status
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end
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echo "deploy-to: activating $system_path on $host" >&2
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ssh -t $host sudo "$system_path/bin/switch-to-configuration" switch
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or begin
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echo "deploy-to: activation failed for $host" >&2
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return $status
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end
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