nix-config/utils/gen-config
2021-01-16 19:03:27 +01:00

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#!/usr/bin/env bash
function hash {
archive="$(mktemp /tmp/nix-config.XXX.tar.gz)"
git archive "$1" | gzip > "$archive"
nix-prefetch-url --unpack --type sha256 "file:$archive" 2>/dev/null
rm "$archive"
}
if [ -z "$1" ]
then
echo "usage: deploy <hostname>"
exit 1
fi
host="${1}"
rev="$(git rev-parse HEAD)"
sha256=$(hash "$rev")
cat <<EOF
{ config, pkgs, ... }:
let
host = "$host";
rev = "$rev";
sha256 = "$sha256";
dadada = import (builtins.fetchTarball {
url = "https://github.com/dadada/nix-config/archive/\${rev}.tar.gz";
sha256 = sha256;
}) { inherit pkgs; };
in
{
imports = [
./hardware-configuration.nix
dadada.hosts."\${host}"
];
}
EOF