38 lines
1.4 KiB
Nix
38 lines
1.4 KiB
Nix
# SPDX-FileCopyrightText: 2020 Luke Granger-Brown <depot@lukegb.com>
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#
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# SPDX-License-Identifier: Apache-2.0
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{ depot, system, pkgs, ... }:
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pkgs.writeShellScriptBin "switch-prebuilt" ''
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set -ue
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export AWS_ACCESS_KEY_ID="$(${pkgs.vault}/bin/vault kv get --address=unix:///run/tokend/sock -field=cacheAccessKeyID kv/apps/nix-daemon)"
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export AWS_SECRET_ACCESS_KEY="$(${pkgs.vault}/bin/vault kv get --address=unix:///run/tokend/sock -field=cacheSecretAccessKey kv/apps/nix-daemon)"
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system="''${1}"
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if [[ "$system" == "latest" ]]; then
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tmpdir="$(mktemp -d)"
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trap '{ rm -rf -- "$tmpdir"; }' EXIT
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${pkgs.curl}/bin/curl -so "$tmpdir/archive.zip" 'https://hg.lukegb.com/api/v4/projects/lukegb%2Fdepot/jobs/artifacts/branch%2Fdefault/download?job=nixCache-${system}'
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${pkgs.unzip}/bin/unzip -d "$tmpdir" -q -o "$tmpdir/archive.zip"
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system="$(${pkgs.jq}/bin/jq -r ".\"$(hostname)\"" "$tmpdir/systems.json")"
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echo "Switching to system ''$system"
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fi
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if [[ ! -e "$system" ]]; then
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# We should be a trusted-user.
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nix build -v "$system"
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fi
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diff "$system/etc/hostname" "/etc/hostname"
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# The next phase requires sudo, but it's harmless to run the preceding commands twice.
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if [[ $EUID -ne 0 ]]; then
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exec sudo "$0" "$system"
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fi
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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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''
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