40 lines
827 B
Bash
40 lines
827 B
Bash
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#!/bin/sh
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set -eu
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if [ $EUID -ne 0 ]; then
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exec sudo "$0" "$@"
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fi
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if [ $# -lt 1 ]; then
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echo "Usage: $0 hostname" >&2
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exit 1
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fi
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depot_parent() {
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pd="$(readlink -f "$1")/"
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if [ "${pd#*/depot/}" = "$pd" ]; then
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return
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fi
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pd="$(readlink -f "${pd%/depot/*}/depot")"
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echo "$pd"
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}
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depot_path() {
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pd="$(depot_parent "$PWD")"
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if [ "$pd" = "" ]; then
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pd="$(depot_parent "$(readlink -f "$0")")"
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fi
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echo "$pd"
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}
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readonly targethostname="$1"
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readonly depot="$(depot_path)"
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if [ "$depot" = "" ]; then
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echo "This script needs to be executed in-depot (or the script itself should be in-depot)."
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exit 1
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fi
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readonly system="$(nix-build -E '(import "'"$(depot_path)"'" {}).ops.nixos.'"${targethostname}" --no-out-link)"
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nix-env -p /nix/var/nix/profiles/system --set "$system"
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"$system/bin/switch-to-configuration" switch
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