mattermost: build webapp from source

{ lib

, buildGoModule

, fetchFromGitHub

, nix-update-script

, fetchurl

, nixosTests

{

  lib,

  buildGoModule,

  fetchFromGitHub,

  buildNpmPackage,

  nix-update-script,

  npm-lockfile-fix,

  fetchNpmDeps,

  diffutils,

  jq,

  nixosTests,

}:

buildGoModule rec {

    owner = "mattermost";

    repo = "mattermost";

    rev = "v${version}";

    hash = "sha256-5nUzUnVWVBnQErbMJeSe2ZxCcdcHSmT34JXjFlRMW/s=";

    hash = "sha256-G9RYktnnVXdhNWp8q+bNbdlHB9ZOGtnESnZVOA7lDvE=";

    postFetch = ''

      cd $out/webapp

      # Remove "+..." suffixes on versions.

      ${lib.getExe jq} '

        def desuffix(version): version | gsub("^(?<prefix>[^\\+]+)\\+.*$"; "\(.prefix)");

        .packages |= map_values(if has("version") then .version = desuffix(.version) else . end)

      ' < package-lock.json > package-lock.fixed.json

      ${lib.getExe npm-lockfile-fix} package-lock.fixed.json

      rm -f package-lock.json

      mv package-lock.fixed.json package-lock.json

    '';

  };

  # Needed because buildGoModule does not support go workspaces yet.

  # We use go 1.22's workspace vendor command, which is not yet available

  # in the default version of go used in nixpkgs, nor is it used by upstream:

  # https://github.com/mattermost/mattermost/issues/26221#issuecomment-1945351597

  overrideModAttrs = (_: {

  overrideModAttrs = (

    _: {

      buildPhase = ''

        make setup-go-work

        go work vendor -e

      '';

  });

    }

  );

  webapp = fetchurl {

    url = "https://releases.mattermost.com/${version}/mattermost-${version}-linux-amd64.tar.gz";

    hash = "sha256-yG5GDeuCHv95e+b2xi/UYiCGkV+I3aqj13Qh/YbyOWQ=";

  npmDeps = fetchNpmDeps {

    inherit src;

    sourceRoot = "${src.name}/webapp";

    hash = "sha256-ysz38ywGxJ5DXrrcDmcmezKbc5Y7aug9jOWUzHRAs/0=";

    makeCacheWritable = true;

    forceGitDeps = true;

  };

  # Makes nix-update-script pick up the fetchurl for the webapp.

  # https://github.com/Mic92/nix-update/blob/1.3.1/nix_update/eval.py#L179

  offlineCache = webapp;

  webapp = buildNpmPackage rec {

    pname = "mattermost-webapp";

    inherit version src;

    sourceRoot = "${src.name}/webapp";

    # Remove deprecated image-webpack-loader causing build failures

    # See: https://github.com/tcoopman/image-webpack-loader#deprecated

    postPatch = ''

      substituteInPlace channels/webpack.config.js \

        --replace-fail 'options: {}' 'options: { disable: true }'

    '';

    npmDepsHash = npmDeps.hash;

    makeCacheWritable = true;

    forceGitDeps = true;

    npmRebuildFlags = [ "--ignore-scripts" ];

    buildPhase = ''

      runHook preBuild

      npm run build --workspace=platform/types

      npm run build --workspace=platform/client

      npm run build --workspace=platform/components

      npm run build --workspace=channels

      runHook postBuild

    '';

    installPhase = ''

      runHook preInstall

      mkdir -p $out

      cp -r channels/dist/* $out

      runHook postInstall

    '';

  };

  vendorHash = "sha256-Gwv6clnq7ihoFC8ox8iEM5xp/us9jWUrcmqA9/XbxBE=";

  ];

  postInstall = ''

    tar --strip 1 --directory $out -xf $webapp \

      mattermost/{client,i18n,fonts,templates,config}

    # For some reason a bunch of these files are executable

    find $out/{client,i18n,fonts,templates,config} -type f -exec chmod -x {} \;

    mkdir -p $out/{client,i18n,fonts,templates,config}

    cp -r ${webapp}/* $out/client/

    cp -r ${src}/server/i18n/* $out/i18n/

    cp -r ${src}/server/fonts/* $out/fonts/

    cp -r ${src}/server/templates/* $out/templates/

    OUTPUT_CONFIG=$out/config/config.json \

      go run -tags production ./scripts/config_generator

  '';

  passthru = {

    updateScript = nix-update-script {

      extraArgs = [ "--version-regex" "^v(9\\.11\\.[0-9]+)$" ];

      extraArgs = [

        "--version-regex"

        "^v(9\.11\.[0-9]+)$"

      ];

    };

    tests.mattermost = nixosTests.mattermost;

  };

  meta = with lib; {

    description = "Mattermost is an open source platform for secure collaboration across the entire software development lifecycle";

    homepage = "https://www.mattermost.org";

    license = with licenses; [ agpl3Only asl20 ];

    maintainers = with maintainers; [ ryantm numinit kranzes mgdelacroix ];

    license = with licenses; [

      agpl3Only

      asl20

    ];

    maintainers = with maintainers; [

      ryantm

      numinit

      kranzes

      mgdelacroix

      fsagbuya

    ];

    mainProgram = "mattermost";

  };

}