jaspr build does not work inside nix

[RossComputerGuy]

Description

nomics-web-client> Running phase: configurePhase
nomics-web-client> no configure script, doing nothing
nomics-web-client> Executing dartConfigHook
nomics-web-client> Setting up SDK
nomics-web-client> Installing dependencies
nomics-web-client> Finished dartConfigHook
nomics-web-client> Running phase: buildPhase
nomics-web-client> PathNotFoundException: Creation failed, path = '/homeless-shelter/.dart-cli-completion' (OS Error: No such file or directory, errno = 2)
nomics-web-client> [CLI] Building jaspr for static rendering mode.
nomics-web-client> ⠙ [CLI] Building web assets...... (0ms)Bad state: Unable to start build daemon.

Steps To Reproduce

1. Use jaspr_cli to set up a basic site
2. Add jaspr_cli to dev dependencies
3. Use yq . pubspec.lock > pubspec.lock.json
4. Add the default.nix below and nix-build.

{ pkgs ? import <nixpkgs> }:
pkgs.buildDartApplication {
  pname = "web";
  version = "0.0.0";

  src = ./.;

  buildPhase = ''
    runHook preBuild

    packageRunCustom jaspr_cli jaspr bin -- build

    runHook postBuild
  '';

  installPhase = ''
    runHook preInstall

    cp -r build/jaspr $out

    runHook postInstall
  '';

  sdkSourceBuilders = {
    # https://github.com/dart-lang/pub/blob/e1fbda73d1ac597474b82882ee0bf6ecea5df108/lib/src/sdk/dart.dart#L80
    "dart" = name: pkgs.runCommand "dart-sdk-${name}" { passthru.packageRoot = "."; } ''
      for path in '${pkgs.dart}/pkg/${name}'; do
        if [ -d "$path" ]; then
          ln -s "$path" "$out"
          break
        fi
      done

      if [ ! -e "$out" ]; then
        echo 1>&2 'The Dart SDK does not contain the requested package: ${name}!'
        exit 1
      fi
    '';
  };

  pubspecLock = pkgs.lib.importJSON ./pubspec.lock.json;
}

Expected Behavior

Jaspr should build

Additional Context

Requires an overlay for nix to support Dart 3.5.1

[RossComputerGuy]

Issue seems to be with dart pub get being called from a sandbox, jaspr should have a switch to be able to disable dart pub get.

[schultek]

I have never used nix, nor do I even know what it is. So sadly its out of my knowledge to help you with this.

[schultek]

This error:

PathNotFoundException: Creation failed, path = '/homeless-shelter/.dart-cli-completion' (OS Error: No such file or directory, errno = 2)

looks like its coming from https://pub.dev/packages/cli_completion

[RossComputerGuy]

The CLI completion error doesn't prevent building, I added verbose logging and got a socket error. For whatever reason, jaspr is fetching from pub.dev inside a networkless sandbox.

[schultek]

The cli is checking for updates everytime a command is run. But this is try/catched so any exception shouldn't crash the cli.

The build command itself is effectively only doing dart compile and build_runner build. It may spin up its own local http server but without any network requests.

Can you post the full error you get from running in verbose mode?

[RossComputerGuy]

nomics-web-client> PathNotFoundException: Creation failed, path = '/homeless-shelter/.dart-cli-completion' (OS Error: No such file or directory, errno = 2)
nomics-web-client> [CLI] Building jaspr for static rendering mode.
nomics-web-client> [CLI] Building web assets...
nomics-web-client> [BUILDER] [ERROR] Got socket error trying to find package lints at https://pub.dev.
nomics-web-client> Bad state: Unable to start build daemon

[schultek]

Weird this is coming from the builder.

Can you try running 'dart run build_runner build' instead of 'jaspr build'?

[RossComputerGuy]

web> Running phase: buildPhase
web> [INFO] Generating build script completed, took 205ms
web> [INFO] Precompiling build script... completed, took 2.8s
web> [INFO] Building new asset graph completed, took 1.7s
web> [INFO] Found 1 declared outputs which already exist on disk. This is likely because the`.dart_tool/build` folder was deleted, or you are submitting generated files to your source repository.
web> Delete these files?
web> 1 - Delete
web> 2 - Cancel build
web> 3 - List conflicts
web>
web>
web> You have hit a bug in build_runner
web> Please file an issue with reproduction steps at https://github.com/dart-lang/build/issues
web>
web>
web> Null check operator used on a null value
web> package:build_runner_core/src/environment/io_environment.dart 67:41           IOEnvironment.prompt
web> package:build_runner_core/src/environment/overridable_environment.dart 63:16  OverrideableEnvironment.prompt
web> package:build_runner_core/src/generate/build_definition.dart 546:41           _Loader._initialBuildCleanup
web> package:build_runner_core/src/generate/build_definition.dart 283:17           _Loader.prepareWorkspace.<fn>
web> package:build_runner_core/src/logging/logging.dart 25:30                      logTimedAsync
web> package:build_runner_core/src/generate/build_definition.dart 280:13           _Loader.prepareWorkspace
web> package:build_runner_core/src/generate/build_impl.dart 114:27                 BuildImpl.create
web> package:build_runner_core/src/generate/build_runner.dart 34:26                BuildRunner.create
web> package:build_runner/src/generate/build.dart 109:17                           build
web> package:build_runner/src/entrypoint/build.dart 35:18                          BuildCommand._run
web> package:args/command_runner.dart 212:13                                       CommandRunner.runCommand
web> package:build_runner/src/entrypoint/run.dart 26:18                            run
web> .dart_tool/build/entrypoint/build.dart 210:16                                 main

[schultek]

Run with --delete-conflicting-outputs

[RossComputerGuy]

Yeah, that worked.