nixos-config/packages/element-web.nix

{
  lib,
  stdenv,
  runCommand,
  fetchFromGitHub,
  fetchYarnDeps,
  writeText,
  jq,
  yarn,
  fixup_yarn_lock,
  nodejs,
  jitsi-meet,
  conf ? {},
}: let
  pinData = lib.importJSON ./pin.json;
  noPhoningHome = {
    disable_guests = true; # disable automatic guest account registration at matrix.org
    piwik = false; # disable analytics
  };
  configOverrides = writeText "element-config-overrides.json" (builtins.toJSON (noPhoningHome // conf));
in
  stdenv.mkDerivation rec {
    pname = "element-web";
    inherit (pinData) version;

    src = fetchFromGitHub {
      owner = "vector-im";
      repo = pname;
      rev = version;
      sha256 = pinData.webSrcHash;
    };

    yarnLock = ./element-web-yarn.lock;
    offlineCache = fetchYarnDeps {
      inherit yarnLock;
      sha256 = pinData.webYarnHash;
    };

    nativeBuildInputs = [yarn fixup_yarn_lock jq nodejs];

    configurePhase = ''
      runHook preConfigure

      export HOME=$PWD/tmp
      mkdir -p $HOME

      export NODE_OPTIONS=--openssl-legacy-provider
      cp ${./element-web-package.json} package.json
      cp $yarnLock yarn.lock
      fixup_yarn_lock yarn.lock
      yarn config --offline set yarn-offline-mirror $offlineCache
      yarn install --offline --frozen-lockfile --ignore-platform --ignore-scripts --no-progress --non-interactive
      patchShebangs node_modules

      runHook postConfigure
    '';

    buildPhase = ''
      runHook preBuild

      export VERSION=${version}
      yarn build:res --offline
      yarn build:module_system --offline
      yarn build:bundle --offline

      runHook postBuild
    '';

    installPhase = ''
      runHook preInstall

      cp -R webapp $out
      cp ${jitsi-meet}/libs/external_api.min.js $out/jitsi_external_api.min.js
      echo "${version}" > "$out/version"
      jq -s '.[0] * .[1]' "config.sample.json" "${configOverrides}" > "$out/config.json"

      runHook postInstall
    '';

    meta = {
      description = "A glossy Matrix collaboration client for the web";
      homepage = "https://element.io/";
      changelog = "https://github.com/vector-im/element-web/blob/v${version}/CHANGELOG.md";
      maintainers = lib.teams.matrix.members;
      license = lib.licenses.asl20;
      platforms = lib.platforms.all;
    };
  }