does anyone have a BUILD file they could share for a typescript next app, or a react app? I've been trying to use the javascript repository, and have come up with the something like:

javascript_sources(
    name="frontend-javascript-files",
    sources=["src/**/*.js", "src/**/*.jsx"],  # Add explicit patterns
)

typescript_sources(
    name="frontend-typescript-files",
    sources=["src/**/*.ts"],  # Add explicit patterns
)

tsx_sources(
    name="frontend-tsx-files",
    sources=["src/**/*.tsx"],  # Add explicit patterns
)

package_json(
    name="frontend-package",
    source="package.json",
    scripts = [
    node_build_script(
            entry_point="build",
            output_directories=[".next"],
            extra_env_vars=[
                # "NODE_ENV=production",
                "NEXT_TELEMETRY_DISABLED=1",  # optional: disables telemetry
            ],
        ),
        node_test_script(
            entry_point="lint",  # assuming you're using `next lint`
        ),
    ],
    dependencies = [
        ":frontend-javascript-files",
        ":frontend-typescript-files",
        ":frontend-tsx-files",
    ]

)

docker_image(
    name="frontend-docker-image",
    dependencies=[
        ":frontend-package"
    ]

But have not been able to get the

src

folder and the files in it actually part of the build. It looks like having them explicitly defined in the dependencies doesn't mean that they are actually available at build time I was going to try next using

files

but that seems like an anti pattern

@worried-painter-31382 might be a good person to ask

So I have been able to get it working by using:

files(
    name="static_src",
    sources=["**/*", "!node_modules/**/*"],
)

but again, it does not feel quite right to do this. @worried-painter-31382 some help would be appreciated!

@late-breakfast-42820: Is Pants inferring the correct dependencies for your project? Use

pants dependencies

,

pants dependents

, (or for a massive data dump

pants peek

)

okay interesting, I have two python apps that are resolving well

[GLOBAL]
pants_version = "2.26.0"

backend_packages = [
  "pants.backend.python",
  "pants.backend.experimental.typescript",
  "pants.backend.experimental.javascript",
  "pants.backend.docker",     # Docker support
  "pants.backend.shell",

  "pants.backend.experimental.helm",


]
build_file_prelude_globs = []
pants_ignore = [
  ".next",
  "venv/",
  "__pycache__/",
  "node_modules/",
]
[source]
marker_filenames = ["pyproject.toml"]

[python]
interpreter_constraints = ['==3.11.*']

[docker]
use_buildx=true

[dockerfile-parser]
use_rust_parser=true

[anonymous-telemetry]
enabled = false

You may need to set https://www.pantsbuild.org/2.26/reference/subsystems/source#root_patterns then to reflect the "top-level" directories for your Javascript and Typescript.

You would need to use files() I think as typescript build isn't natively supported by the backend yet.

If you feel adventorous the >=2.28.0.dev3 series supports ts, js, jsx and tsx dep inference correctly