does pants v2 have any notion of how to handle non python de

Question

does pants v2 have any notion of how to handle non python dependencies like system dependencies needed for things like opencv etc

hundreds-father-404 · Answer

Like resource files e g JSON Or you more mean things like system binaries and header files

flat-zoo-31952 · Answer

system binaries and headers

flat-zoo-31952 · Answer

i m guessing no

flat-zoo-31952 · Answer

i don t even think there s a convention for how a python sdist or wheel can express what it needs from the system in that regard

flat-zoo-31952 · Answer

which is probably why conda exists

hundreds-father-404 · Answer

We do not through the normal interface like BUILD files and `pants toml` But the Plugin API does have support for thinks like finding pre installed binaries and erroring if not found Could you explain a little more about your use case please I m wondering if we could use the Plugin API to achieve what you re looking for

flat-zoo-31952 · Answer

have you ever used opencv or pyqt basically anything written in C++ that has python bindings distributed seperately it can be a real mess to get things to work because the system bindings vary based on the particular distro and version of whatever you re using

flat-zoo-31952 · Answer

it s hard for me to summarize the full use case i ll have to get back to you on that

hundreds-father-404 · Answer

I ve used OpenCV for school projects but not in production Installing TF was also a pain We d be really interested in improving the workflow here in a way that you don t have to write a plugin but it s more built in Would you be interested in writing a GitHub issue sharing a little context and what you d like Pants to do It s okay to not have an actual design of course More a problem statement how you work around it today and some requirements you d like included

hundreds-father-404 · Answer

Ack on it being hard to summarize Totally okay if even for now it s only a placeholder issue GitHub is what we use for planning so having it on there will help us to prioritize work on it

flat-zoo-31952 · Answer

yeah i ll try to write that up into a GitHub issue

flat-zoo-31952 · Answer

thing is this was pretty easy to do when I got to mandate what OS my other devs were using I just played around with `apt get` packages until i found a working set and then added that to the readme

flat-zoo-31952 · Answer

but i m working in a multi OS dev shop now and I don t want to have to do that for 3 linux distro versions macos and WSL each time

flat-zoo-31952 · Answer

i m pretty sure this is the problem the conda ecosystem aims to solve but i ve always ignored it up until now i m going to do a bit of investigation into this and i ll try to write up a good summary on GH to help you all understand the use cases and needs better slightly smiling face

hundreds-father-404 · Answer

Definitely agreed that this is a good candidate for Pants to support first class That s a major motivation for a Build tool that you no longer need to worry about things like how to install tools in a certain environment That d be great thank you It ll be worth us considering even wrapping Conda A big theme of the v2 engine is that we re more of an orchestrator around the tools you already use don t reinvent the wheel

witty-crayon-22786 · Answer

another left field thought we ve had on the multi platform topic is that using remote execution someone could edit on a OSX laptop but build and test remotely on linux it s a few months out but in the cards

witty-crayon-22786 · Answer

cross platform remoting is a few months out remoting is already here

fast-nail-55400 · Answer

would it be useful to have Pants discover bind to `pkgconfig` output for system libaries

fast-nail-55400 · Answer

since I recall many C C++ libraries publish their CFLAGS LDFLAGS that way

flat-zoo-31952 · Answer

it s worth investigating at least