It seems as

isort

doesn’t support saving the output error messages into a file (in the same way you can do

flake8 --output-file=reports/flake8.txt

). If I’d be calling

isort

on its own, I could just

tee

, but since it happens in the

./pants lint

call, I can’t do that. Have I overlooked anything in the options and it’s actually possible to produce a file report? Is it something we could extend in Pants itself to produce such a report?

Hi I'm having trouble running a restartable docker. It seems that a docker target ran with

restartable=True

doesn't wait until the previous docker container stops. I'll provide an example: src/docker/BUILD

docker_image(
    name="app",
    dependencies=["src/python/app:bin"],
    restartable=True
)

src/python/app/BUILD

python_sources()
pex_binary(
    name="bin",
    entry_point="main.py"
)

src/docker/Dockerfile

FROM python:3.9-slim

COPY <http://src.python.app/bin.pex|src.python.app/bin.pex> /app/bin

ENTRYPOINT [ "/app/bin" ]

Then running as:

./pants run --docker-run-args="-p 8000:8000" src/docker:app

Runs fine, but fails when any file is modified:

docker: Error response from daemon: driver failed programming external connectivity on endpoint cool_gould (5a6265badca64afa4e304e6475119f912621ee8cddf8e195d36a6d0d55b7854f): Bind for 0.0.0.0:8000 failed: port is already allocated.

./pants run --docker-run-args="-p 8000:8000 --name=app" src/docker:app

Also runs fine, but fails when any file is modified:

docker: Error response from daemon: Conflict. The container name "/app" is already in use by container "e003d8f7b8c1e963e1f540ab49a06b67a21530938ac1f9092862e858e800dcfe". You have to remove (or rename) that container to be able to reuse that name.

passing --rm to the --docker-run-args gives the same result

Q. Does pants-executed pex (pytest) targets use a private tmp directory? Could I change the behavior?

👋 Hi everyone! what is the recommended way of replacing text in a source file as part of the package goal? e.g. i have a template metadata.json file for my app and i have to update the contents with the output of

git describe

Hi there! Favor to help us out with evaluating a proposal to make the

name=

field less confusing & target addresses simpler..would you be willing to run this script and report back on what it says? (warning it may take ~3-15 minutes probably, and you can't run other Pants commands while doing it)

What are your thoughts on allowing some of the JVM targets, the ones that are runnable (i.e. junit/scalatest tests,

deploy_jar

, etc), to have dependencies on

file

targets as well as in

resources

? The case that I’m thinking of is one in which I would like to launch a subprocess (generated at an earlier stage) at the start of a test suite. Being a runnable file, I can not run it from inside a JAR so I can’t use a dependency on a `resource`…

Hi, does anyone have pointers on how to launch multiple pex_binary targets simultaneously? I have a robotic system with a bunch of components that need to be started together, and wondering if

pants run

has some built-in tools for that. Thanks!

What is the best way to spin up databases/other services for testing purposes via

pants

? In conventional CI tool I'd just

docker-compose up

stuff and run my

pytest

Can I `!path/to:tgt`a transitive dep? I'm seeing it when I use

./pants --dependencies --transitive some/other:tgt

Hi all, I wonder if there is a way for Pants to run some commands like

./pants fmt ::

and

./pants test

for multiple Python versions? Something equivalent to Nox sessions.

Out of curiosity, how long is pants 1.30 being supposrted?

Check out @witty-family-13337’s docs for the upcoming Helm support! https://www.pantsbuild.org/v2.12/docs/helm-overview

has there been a regression in 2.10 -> 2.11 WRT tags? my

python_tests()

in my BUILD files have tags. but only the

.py

files have them when doing a

./pants peek

Which means

./pants --tags=-integration_tests ::

picks

//tests/python/integration:tests

and subsequently all the tests within.

I’m finding that

--test-output=all

is still only giving me the stdout from the test that fails… is there something that I could be doing wrong here? Also is it true that both

--test-output=all

and

--output=all

do the same thing?

Separately from the above,… is there a way to force Pants to run tests in a particular order? e.g. I’m running tests in a particular folder, which has 3

test_<xxx>.py

files - and my tests fail depending on the order in which Pants decides to run the files, so making it a bit time-consuming to force a run that triggers the race condition

Q: Is it possible to let pytest shutdown by its own when I hit Ctrl+C (SIGINT)? Pants just immediately kills all pytest processes but the pytest-side fixture cleanup routines are not executed at all..

When subclassing

InferDependenciesRequest

, what is the difference between

from_sources

and

infer_from

? The docstring description and example for https://github.com/pantsbuild/pants/blob/c73b9f68b7e05ac455057142ae50c75f2560d06b/src/python/pants/engine/target.py#L2529-L2559 seem to contradict each other

Hello All. Weird issue we're having. When we're running

./pants test <some_app_that_puts_files_to_s3>

locally, it works. inside circleCI, same exact command fails on creds.. The credentials for AWS are working in CircleCI because other non-pants apps are using them. Any hint anyone? I'm assuming the test runs in sort of a "chrooted" environment, but why does it work locally but not in circleCI? thanks 🙂

Some bike shed questions, comments welcomed! 1. What do we call the goal to generate docs?

docs

,

docsgen

,

docs-gen

,

gen-docs

? 2. Where do we write the result?

dist/docs/<project_name>

?

Can I configure pants so

pants run

errors print the original source path in a Python stacktrace, instead of the

…/.pants.d/tmp…

source path?

When running

check

on python code with [mypy].interpreter_constraints is set, we don't actually use those constraints on targets that have their own ICs

(This is a follow-up to a previous super-long thread, but I figured I'd start a new thread since this is a slightly (?) different question.) Hello, I've been able to generate the following resources in various

path/to/service/graphql/BUILD

files, where

*.graphql

files are siblings in the directories by subclassing

PutativeTargetsRequest

.

resources(
    name="graphql_schema",
    sources=[
        "*.graphql",
    ],
)

I'm interested in making it so that Python sources that invoke

ariadne.load_schema_by_path

have dependencies on all GraphQL resources in my codebase, e.g. the targets specified in each

path/to/service/graphql/BUILD

file. (This is necessary because the

ariadne.load_schema_by_path

function opens GraphQL file paths.) I think the

BUILD

file I want to generate should look something like the following:

python_sources(
    dependencies=[
        "path/to/service_a/graphql:graphql_schema",
        "path/to/service_b/graphql:graphql_schema",
        "path/to/service_c/graphql:graphql_schema",
        ...
    ]
)

I see that infer_python_dependencies_via_source is a rule that already exists in the Python backend. I was wondering if I could leverage this. To solve my problem, would it be valid to create an additional rule, e.g.

infer_python_graphql_dependencies

that awaits

Get(InferredDependencies, ...)

, and then looks through the dependencies, and adds dependencies on all

"path/to/service/graphql:graphql_schema"

targets whenever an

ariadne

dependency is found? So far, I have the following (not working) code that I'm trying to play with.

class InferPythonGraphQLResourceDependenciesRequest(InferDependenciesRequest):
    infer_from = PythonSourceField


@rule(desc="Inferring Python GraphQL dependencies by analyzing source")
async def infer_python_graphql_dependencies(
    request: InferPythonGraphQLResourceDependenciesRequest,
    python_infer_subsystem: PythonInferSubsystem,
    python_setup: PythonSetup,
) -> InferredDependencies:
    if not python_infer_subsystem.imports and not python_infer_subsystem.assets:
        return InferredDependencies([])

    _wrapped_tgt = await Get(WrappedTarget, Address, request.sources_field.address)
    tgt = _wrapped_tgt.target
    return await Get(InferredDependencies, DependenciesRequest(tgt[Dependencies]))


def rules() -> Iterable[Rule]:
    return [
        infer_python_graphql_dependencies,
        UnionRule(InferDependenciesRequest, InferPythonGraphQLResourceDependenciesRequest),
    ]

The issue with this code are errors that look like the following:

No installed rules return the type InferConftestDependencies
No installed rules return the type InferInitDependencies
No installed rules return the type InferPythonGraphQLResourceDependenciesRequest

Do I perhaps I need to re-register rules the

rules()

function defined in my dependency inference declarations?

I think I've run into this before and gotten an answer, but it seems to have been lost to the amnesia of Slack. In any case, I'm trying to run Pants inside a virtualenv that is linked to a Python binary managed with pyenv and getting an error related to the symlink

⇉ ./pants tailor
11:16:35.25 [INFO] Initializing scheduler...
11:16:35.36 [INFO] Scheduler initialized.
11:16:35.42 [ERROR] 1 Exception encountered:

  Exception: Failed to read link "/home/tmacey/code/mit/data/ol-data-platform/.venv/bin/python": Absolute symlink: "/home/tmacey/.pyenv/versions/3.9.9/bin/python"

This is a fun one: Pants puts all the code's requirements in the venv when running mypy, which I believe is the correct thing to do. But I'm now adopting Pants in a repo that already runs mypy in a standalone venv that has a bespoke subset of the code's full requirements. So mypy passes quickly in that setup (and they have a few

# type: ignore

to help it along), but fails slowly under Pants (partly because those

# type: ignore

are unneeded)

I have a macro I'm registering in

pants.toml

with

build_file_prelude_globs

which in it I put type hints (because I'm used to it). Specifically I used

foo: str | None = None

. Myself and all my devs use py 3.8. I can see

py3.8

being used in the Pants bootstrap env. I use the macro in a few places. ...and yet nothing errors (It should, the union syntax for the types wasn't added until 3.10). Until now. Someone just got the error. What's happening? I'm bewildered.

from pants.testutil.rule_runner import RuleRunner

Is there any way I can use this? I want to write some tests for my plugins. I'm getting the following error.

Import "pants.testutil.rule_runner" could not be resolved

Hey Pants Team, looking for some help debugging an issue with a go project with pants

2.11.0

. I recently upgraded my go version

1.17->1.18

and when running Pants I'm seeing this error:

BinaryNotFoundError: Cannot find a `go` binary with the expected version of 1.18 (set by `[golang].expected_version`).

Found these `go` binaries, but they had different versions:

  * /usr/local/bin/go: 1.17

To fix, please install the expected version (<https://golang.org/doc/install>) and ensure that it is discoverable via the option `[golang].go_search_paths`, or change `[golang].expected_version`.

When inspecting the go version it seems to be correct

$/usr/local/bin/go version
go version go1.18.2 darwin/amd64

Not sure if it's pants related at all but any help is appreciated

Somehow my system decided

--colors

shouldn't be the default. Any tips for what I might have changed or done to make it think this?

A poll: did you know that you can ignore a file on the CLI w/

!

? E.g.

./pants test 'project/*.py' '!project/ignore.py'

*Edit: this is not about the

sources

field in BUILD files. Only CLI arguments 👎 I had no idea ➖ yes, but I've never used 👍 yes, and I've used at least once