nix-super/tests/nixos/tarball-flakes.nix
Pierre Bourdon 162d94d975 tests/nixos: make the tarball-flakes test better reflect real use cases
In most real world cases, the Link header is set on the redirect, not on
the final file. This regressed in Lix earlier and while new unit tests
were added to cover it, this integration test should probably have also
caught it.

Source: a3256a9375
2024-06-05 20:14:24 +02:00

89 lines
3.2 KiB
Nix

{ lib, config, nixpkgs, ... }:
let
pkgs = config.nodes.machine.nixpkgs.pkgs;
root = pkgs.runCommand "nixpkgs-flake" {}
''
mkdir -p $out/{stable,tags}
set -x
dir=nixpkgs-${nixpkgs.shortRev}
cp -prd ${nixpkgs} $dir
# Set the correct timestamp in the tarball.
find $dir -print0 | xargs -0 touch -h -t ${builtins.substring 0 12 nixpkgs.lastModifiedDate}.${builtins.substring 12 2 nixpkgs.lastModifiedDate} --
tar cfz $out/stable/${nixpkgs.rev}.tar.gz $dir --hard-dereference
# Set the "Link" header on the redirect but not the final response to
# simulate an S3-like serving environment where the final host cannot set
# arbitrary headers.
cat >$out/tags/.htaccess <<EOF
Redirect "/tags/latest.tar.gz" "/stable/${nixpkgs.rev}.tar.gz"
Header always set Link "<http://localhost/stable/${nixpkgs.rev}.tar.gz?rev=${nixpkgs.rev}&revCount=1234>; rel=\"immutable\""
EOF
'';
in
{
name = "tarball-flakes";
nodes =
{
machine =
{ config, pkgs, ... }:
{ networking.firewall.allowedTCPPorts = [ 80 ];
services.httpd.enable = true;
services.httpd.adminAddr = "foo@example.org";
services.httpd.extraConfig = ''
ErrorLog syslog:local6
'';
services.httpd.virtualHosts."localhost" =
{ servedDirs =
[ { urlPath = "/";
dir = root;
}
];
};
virtualisation.writableStore = true;
virtualisation.diskSize = 2048;
virtualisation.additionalPaths = [ pkgs.hello pkgs.fuse ];
virtualisation.memorySize = 4096;
nix.settings.substituters = lib.mkForce [ ];
nix.extraOptions = "experimental-features = nix-command flakes";
};
};
testScript = { nodes }: ''
# fmt: off
import json
start_all()
machine.wait_for_unit("httpd.service")
out = machine.succeed("nix flake metadata --json http://localhost/tags/latest.tar.gz")
print(out)
info = json.loads(out)
# Check that we got redirected to the immutable URL.
assert info["locked"]["url"] == "http://localhost/stable/${nixpkgs.rev}.tar.gz"
# Check that we got the rev and revCount attributes.
assert info["revision"] == "${nixpkgs.rev}"
assert info["revCount"] == 1234
# Check that fetching with rev/revCount/narHash succeeds.
machine.succeed("nix flake metadata --json http://localhost/tags/latest.tar.gz?rev=" + info["revision"])
machine.succeed("nix flake metadata --json http://localhost/tags/latest.tar.gz?revCount=" + str(info["revCount"]))
machine.succeed("nix flake metadata --json http://localhost/tags/latest.tar.gz?narHash=" + info["locked"]["narHash"])
# Check that fetching fails if we provide incorrect attributes.
machine.fail("nix flake metadata --json http://localhost/tags/latest.tar.gz?rev=493300eb13ae6fb387fbd47bf54a85915acc31c0")
machine.fail("nix flake metadata --json http://localhost/tags/latest.tar.gz?revCount=789")
machine.fail("nix flake metadata --json http://localhost/tags/latest.tar.gz?narHash=sha256-tbudgBSg+bHWHiHnlteNzN8TUvI80ygS9IULh4rklEw=")
'';
}