Hey all 👋 Is there a way to visualise the whole dep graph and/or which dep is pulling another one? e.g.

% npm ls react

app@0.1.0
├─┬ @auth0/auth0-react@1.10.1
│ └── react@18.2.0 deduped
├─┬ @emotion/react@11.10.4
│ ├─┬ @emotion/use-insertion-effect-with-fallbacks@1.0.0
│ │ └── react@18.2.0 deduped
...

Does this help?

Hey thanks for the answer 🙂 How would you use paths? e.g.

% pants paths --paths-from=3rdparty/python:aws#botocore --paths-to=./src/lambda/handler.py

[]

I don’t think it points to a specific line. For

dependents

maybe look at:

pants dependents 3rdparty/python:aws#botocore

first, so you pick up on the direct dependents of the library. Then add

--transitive

. TBH I haven’t played with

paths

yet.

Yeah I played a bit with it but eventually gave up - we found a fix someway... https://blog.pantsbuild.org/visualize-your-dependencies-with-graphmyrepo/ I guess there must be a way to tap on the Pants API and pull out the graph but I can't see an easy way to look the DAG from the CLI

The

paths

and

dependants

goal are 1st party only. They stop at the boundaries of the repo and do not traverse into 3rdparty deps.

Hey @enough-analyst-54434 thanks Yes we have enabled resolves and I can see a lock file Although trying to understand why something is pulled by what is not the easiest Monday morning that I can think about 😄

Just look at the

"requires_dists"

lists and work backwards. For example, why does Pants itself depend on sniffio? Because anyio depends on it: https://github.com/pantsbuild/pants/blob/74127491f69e698bf9243c6af0a02c8ef42d9080/3rdparty/python/user_reqs.lock#L105 and starlette depends on anyio: https://github.com/pantsbuild/pants/blob/74127491f69e698bf9243c6af0a02c8ef42d9080/3rdparty/python/user_reqs.lock#L1649, etc...

I'll have a fun time parsing that JSON at some point Thanks alot

With the npm example you may realize the problem that has slowed this style feature a bit, in Pants in general it needs to work across ecosystems for JS, Python, Go, etc. Each has there own dependency system for 3rdparty.

Admittedly, I'm still wrapping up my head around Pants which seems BTW an incredibly useful tool... Surely, there is an argument in saying that a general sensible abstraction for a dependency graph is an acyclical graph, which could be visualised in a tree view? Or is that a wrong assumption?

It's not a question of can it be done, it's a question of time and effort only. All volunteer, not a paid product.

Generally yes, modeling and displaying transitive 3rdparty deps would be useful, and questions like yours pop up from time to time. As John says, it's a matter of someone being motivated enough to pick up the mantle and do the work.

Is that a good task to play with Rust or is Rust learning curve to steep to start from there? I learned to "talk" few languages in a relatively small amount of time and can be relatively "fluent" to each one, and have experienced the blessing GPT models can sometimes be in diving into a new one, but I'm also aware that Rust can be quite a head-hammering experience... What would be your suggestion?

This is all totally implemented above the Rust engine in Python rules.

Yep, can be done entirely in Python

👍