.swcrc loaded via --config-file does not resolve jsc.baseUrl

[kushuh]

Describe the bug

I recently upgraded from "@swc/core": "^1.3.70" to "@swc/core": "^1.3.76", and my configuration does not compile anymore.

Input code

Running the compile command:

npx swc package --config-file .build.swcrc --copy-files -d dist

Config

In my .build.swcrc file.

{
  "jsc": {
    "baseUrl": ".",
    "transform": {
      "react": {
        "runtime": "automatic",
        "importSource": "react"
      }
    },
    "parser": {
      "syntax": "typescript",
      "tsx": true
    },
    "target": "es2022",
    "loose": false,
    "minify": {
      "compress": false,
      "mangle": false
    },
    "paths": {
      "@components/stateless": [
        "package/components/stateless"
      ],
      "@components/stateful": [
        "package/components/stateful"
      ],
      "@internal": [
        "internal-components"
      ],
      "@contexts": [
        "package/contexts"
      ],
      "@hooks": [
        "package/hooks"
      ],
      "@lib/backend": [
        "package/lib/backend"
      ],
      "@lib/api": [
        "package/lib/api"
      ],
      "@lib": [
        "package/lib"
      ],
      "@public/*": [
        "package/public/*"
      ],
      "@styles/*": [
        "package/styles/*"
      ]
    }
  },
  "module": {
    "type": "es6",
    "strict": false,
    "lazy": true,
    "noInterop": false
  },
  "minify": false
}

Playground link

No response

Expected behavior

I expect a compilation success (worked well up until at least "@swc/core": "^1.3.70")

Actual behavior

I get this error during compilation:

thread 'thread '<unnamed><unnamed>' panicked at '' panicked at 'base_dir(.) must be absolute. Please ensure that `jsc.baseUrl` is specified correctly.base_dir(.) must be absolute. Please ensure that `jsc.baseUrl` is specified correctly.', ', /Users/runner/.cargo/registry/src/index.crates.io-6f17d22bba15001f/swc_ecma_transforms_module-0.173.28/src/path.rs/Users/runner/.cargo/registry/src/index.crates.io-6f17d22bba15001f/swc_ecma_transforms_module-0.173.28/src/path.rs::104104::1313

Version

"@swc/cli": "^0.1.62" "@swc/core": "^1.3.76"

Additional context

No response

[sambauers]

Can confirm this seems to affect @swc/core v1.3.76 and reverting to v1.3.75 removes the issue.

In my project I had not defined baseUrl at all.

UPDATE: I added "baseUrl": ".", to my .swcrc and building with swc on the command line now works with v1.3.76, however testing using @swc/jest still does not work.

My .swcrc config is:

{
  "$schema": "http://json.schemastore.org/swcrc",
  "module": {
    "type": "commonjs"
  },
  "jsc": {
    "baseUrl": ".",
    "parser": {
      "syntax": "typescript",
    },
    "paths": {
      "@/*": [
        "./src/*"
      ]
    }
  },
  "exclude": [
    "./**/__tests__/*"
  ]
}

My jest.config.js is:

// @ts-check

/**
 * @type {import('@swc/core/types').Options}
 */
const swcConfig = {
  module: {
    type: 'commonjs',
  },
  jsc: {
    baseUrl: '.',
    parser: {
      syntax: 'typescript',
    },
    paths: {
      '@/*': ['./src/*'],
    },
  },
  envName: 'test',
  swcrc: false,
}

/**
 * @type {import('jest').Config}
 */
const jestConfig = {
  transform: {
    '^.+\\.(t|j)sx?$': [
      '@swc/jest',
      // @ts-expect-error swc options are not assignable
      swcConfig,
    ],
  },
  moduleNameMapper: {
    '^@/(.*)$': '<rootDir>/src/$1',
  },
  coveragePathIgnorePatterns: ['<rootDir>/jest'],
}

// eslint-disable-next-line no-undef
module.exports = jestConfig

If you need more context, the project I'm trying to upgrade is https://github.com/sambauers/tailwindcss-3d

[kdy1]

@kushuh If it still occurs, please provide a minimal reproduction .

[kdy1]

swc-project/jest@b17afb5 is about @swc/jest

[sambauers]

Can confirm this works now for Jest provided I specify a baseUrl, without a baseUrl it fails. Docs say baseUrl is required with paths specified, so I guess that's OK 😄

[kushuh]

@kdy1 I was able to confirm the issue is not present on 1.3.75. Here is a minimal reproduction example: https://github.com/kushuh/bug-swc-base-url

[kushuh]

I was also able to reproduce the issue without using jest 🤔

[kdy1]

Ah, npx swc invokes the native CLI... I only patched js API 🤣
I'll fix it and publish a new version later today.

[kdy1]

Oh the problem was --config-file

[kdy1]

Postponing to working hours as it's about --config-file, not default option

[swc-bot]

This closed issue has been automatically locked because it had no new activity for a month. If you are running into a similar issue, please create a new issue with the steps to reproduce. Thank you.