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lix/tests/sourcehut-flakes.nix

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2022-02-23 14:58:09 +00:00
{ nixpkgs, system, overlay }:
with import (nixpkgs + "/nixos/lib/testing-python.nix")
{
inherit system;
extraConfigurations = [{ nixpkgs.overlays = [ overlay ]; }];
};
let
# Generate a fake root CA and a fake git.sr.ht certificate.
cert = pkgs.runCommand "cert" { buildInputs = [ pkgs.openssl ]; }
''
mkdir -p $out
openssl genrsa -out ca.key 2048
openssl req -new -x509 -days 36500 -key ca.key \
-subj "/C=NL/ST=Denial/L=Springfield/O=Dis/CN=Root CA" -out $out/ca.crt
openssl req -newkey rsa:2048 -nodes -keyout $out/server.key \
-subj "/C=CN/ST=Denial/L=Springfield/O=Dis/CN=git.sr.ht" -out server.csr
openssl x509 -req -extfile <(printf "subjectAltName=DNS:git.sr.ht") \
-days 36500 -in server.csr -CA $out/ca.crt -CAkey ca.key -CAcreateserial -out $out/server.crt
'';
registry = pkgs.writeTextFile {
name = "registry";
text = ''
{
"flakes": [
{
"from": {
"type": "indirect",
"id": "nixpkgs"
},
"to": {
"type": "sourcehut",
"owner": "~NixOS",
"repo": "nixpkgs"
}
}
],
"version": 2
}
'';
destination = "/flake-registry.json";
};
nixpkgs-repo = pkgs.runCommand "nixpkgs-flake" { }
''
dir=NixOS-nixpkgs-${nixpkgs.shortRev}
cp -prd ${nixpkgs} $dir
# Set the correct timestamp in the tarball.
find $dir -print0 | xargs -0 touch -t ${builtins.substring 0 12 nixpkgs.lastModifiedDate}.${builtins.substring 12 2 nixpkgs.lastModifiedDate} --
mkdir -p $out/archive
tar cfz $out/archive/${nixpkgs.rev}.tar.gz $dir --hard-dereference
echo 'ref: refs/heads/master' > $out/HEAD
mkdir -p $out/info
echo -e '${nixpkgs.rev}\trefs/heads/master\n${nixpkgs.rev}\trefs/tags/foo-bar' > $out/info/refs
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'';
in
makeTest (
{
name = "sourcehut-flakes";
nodes =
{
# Impersonate git.sr.ht
sourcehut =
{ config, pkgs, ... }:
{
networking.firewall.allowedTCPPorts = [ 80 443 ];
services.httpd.enable = true;
services.httpd.adminAddr = "foo@example.org";
services.httpd.extraConfig = ''
ErrorLog syslog:local6
'';
services.httpd.virtualHosts."git.sr.ht" =
{
forceSSL = true;
sslServerKey = "${cert}/server.key";
sslServerCert = "${cert}/server.crt";
servedDirs =
[
{
urlPath = "/~NixOS/nixpkgs";
dir = nixpkgs-repo;
}
{
urlPath = "/~NixOS/flake-registry/blob/master";
dir = registry;
}
];
};
};
client =
{ config, lib, pkgs, nodes, ... }:
{
virtualisation.writableStore = true;
virtualisation.diskSize = 2048;
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virtualisation.additionalPaths = [ pkgs.hello pkgs.fuse ];
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virtualisation.memorySize = 4096;
nix.settings.substituters = lib.mkForce [ ];
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nix.extraOptions = ''
experimental-features = nix-command flakes
flake-registry = https://git.sr.ht/~NixOS/flake-registry/blob/master/flake-registry.json
'';
environment.systemPackages = [ pkgs.jq ];
networking.hosts.${(builtins.head nodes.sourcehut.config.networking.interfaces.eth1.ipv4.addresses).address} =
[ "git.sr.ht" ];
security.pki.certificateFiles = [ "${cert}/ca.crt" ];
};
};
testScript = { nodes }: ''
# fmt: off
import json
import time
start_all()
sourcehut.wait_for_unit("httpd.service")
client.succeed("curl -v https://git.sr.ht/ >&2")
client.succeed("nix registry list | grep nixpkgs")
# Test that it resolves HEAD
rev = client.succeed("nix flake info sourcehut:~NixOS/nixpkgs --json | jq -r .revision")
assert rev.strip() == "${nixpkgs.rev}", "revision mismatch"
# Test that it resolves branches
rev = client.succeed("nix flake info sourcehut:~NixOS/nixpkgs/master --json | jq -r .revision")
assert rev.strip() == "${nixpkgs.rev}", "revision mismatch"
# Test that it resolves tags
rev = client.succeed("nix flake info sourcehut:~NixOS/nixpkgs/foo-bar --json | jq -r .revision")
assert rev.strip() == "${nixpkgs.rev}", "revision mismatch"
# Registry and pinning test
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rev = client.succeed("nix flake info nixpkgs --json | jq -r .revision")
assert rev.strip() == "${nixpkgs.rev}", "revision mismatch"
client.succeed("nix registry pin nixpkgs")
client.succeed("nix flake info nixpkgs --tarball-ttl 0 >&2")
# Shut down the web server. The flake should be cached on the client.
sourcehut.succeed("systemctl stop httpd.service")
info = json.loads(client.succeed("nix flake info nixpkgs --json"))
date = time.strftime("%Y%m%d%H%M%S", time.gmtime(info['lastModified']))
assert date == "${nixpkgs.lastModifiedDate}", "time mismatch"
client.succeed("nix build nixpkgs#hello")
# The build shouldn't fail even with --tarball-ttl 0 (the server
# being down should not be a fatal error).
client.succeed("nix build nixpkgs#fuse --tarball-ttl 0")
'';
})