nixos-mailserver/flake.nix
2021-12-07 22:09:14 +01:00

139 lines
4.1 KiB
Nix

{
description = "A complete and Simple Nixos Mailserver";
inputs = {
utils.url = "github:numtide/flake-utils";
nixpkgs.url = "flake:nixpkgs/nixos-unstable";
nixpkgs-21_05.url = "flake:nixpkgs/nixos-21.05";
nixpkgs-21_11.url = "flake:nixpkgs/nixos-21.11";
blobs = {
url = "gitlab:simple-nixos-mailserver/blobs";
flake = false;
};
};
outputs = { self, utils, blobs, nixpkgs, nixpkgs-21_05, nixpkgs-21_11 }: let
system = "x86_64-linux";
pkgs = nixpkgs.legacyPackages.${system};
# We want to test nixos-mailserver on several nixos releases
releases = [
{
name = "unstable";
pkgs = nixpkgs.legacyPackages.${system};
}
{
name = "21_05";
pkgs = nixpkgs-21_05.legacyPackages.${system};
}
{
name = "21_11";
pkgs = nixpkgs-21_11.legacyPackages.${system};
}
];
testNames = [
"internal"
"external"
"clamav"
"multiple"
];
genTest = testName: release: {
"name"= "${testName}-${release.name}";
"value"= import (./tests/. + "/${testName}.nix") {
pkgs = release.pkgs;
inherit blobs;
};
};
# Generate an attribute set such as
# {
# external-unstable = <derivation>;
# external-21_05 = <derivation>;
# ...
# }
allTests = pkgs.lib.listToAttrs (
pkgs.lib.flatten (map (t: map (r: genTest t r) releases) testNames));
mailserverModule = import ./.;
# Generate a rst file describing options of the NixOS mailserver module
generateRstOptions = let
eval = import (pkgs.path + "/nixos/lib/eval-config.nix") {
inherit system;
modules = [
mailserverModule
{
# Because the blockbook package is currently broken (we
# don't care about this package but it is part of the
# NixOS module evaluation)
nixpkgs.config.allowBroken = true;
mailserver.fqdn = "mx.example.com";
}
];
};
options = pkgs.nixosOptionsDoc {
options = eval.options;
};
in pkgs.runCommand "options.rst" { buildInputs = [pkgs.python3]; } ''
echo Generating options.rst from ${options.optionsJSON}/share/doc/nixos/options.json
python ${./scripts/generate-rst-options.py} ${options.optionsJSON}/share/doc/nixos/options.json > $out
'';
# This is a script helping users to generate this file in the docs directory
generateRstOptionsScript = pkgs.writeScriptBin "generate-rst-options" ''
cp -v ${generateRstOptions} ./docs/options.rst
'';
# This is to ensure we don't forget to update the options.rst file
testRstOptions = pkgs.runCommand "test-rst-options" {} ''
if ! diff -q ${./docs/options.rst} ${generateRstOptions}
then
echo "The file ./docs/options.rst is not up-to-date and needs to be regenerated!"
echo " hint: run 'nix-shell --run generate-rst-options' to generate this file"
exit 1
fi
echo "test: ok" > $out
'';
documentation = pkgs.stdenv.mkDerivation {
name = "documentation";
src = pkgs.lib.sourceByRegex ./docs ["logo.png" "conf.py" "Makefile" ".*rst$"];
buildInputs = [(
pkgs.python3.withPackages(p: [
p.sphinx
p.sphinx_rtd_theme
])
)];
buildPhase = ''
cp ${generateRstOptions} options.rst
mkdir -p _static
# Workaround for https://github.com/sphinx-doc/sphinx/issues/3451
export SOURCE_DATE_EPOCH=$(${pkgs.coreutils}/bin/date +%s)
make html
'';
installPhase = ''
cp -r _build/html $out
'';
};
in rec {
nixosModules.mailserver = mailserverModule ;
nixosModule = self.nixosModules.mailserver;
hydraJobs.${system} = allTests // {
test-rst-options = testRstOptions;
inherit documentation;
};
checks.${system} = allTests;
devShell.${system} = pkgs.mkShell {
buildInputs = with pkgs; [
generateRstOptionsScript
(python3.withPackages (p: with p; [
sphinx
sphinx_rtd_theme
]))
jq
clamav
];
};
};
}