Hello everyone, we have been using pantsbuild on our mono repo for about a year. Our mono repository consists of Python and several different languages. We have enjoyed using pantsbuild in Python projects so far. Now we are trying to migrate our Golang projects to pantsbuild. We encountered a problem during this migration. Our Golang projects are

cross-platform

projects built with

cgo

. During the build phase, we build for different operating systems and create different executable binaries. Until now, we could run these operations in the

techknowlogick/xgo

docker image on the Linux host and build it according to the target operating systems. Looking at the pants documentation, we thought that the most logical way to do this with pantsbuild was to use

docker_environment

(https://www.pantsbuild.org/docs/reference-docker_environment) and we proceeded accordingly. When we try to build for Windows, we encounter an error like the one below. To fix this error, I changed several parameters of docker_environment, but the problem was not solved. You can find some parameters in the src/BUILD.pants file in the comment line. The attached project contains an example for windows target. To run the project, firstly you should build the docker image with the

pants package src:xgo_windows_build_agent

command. The only difference between this image from the original techknowlogick/xgo image is that some environment variables (CGO_ENABLED, GOOS, GOARCH, etc.) are defined for Windows. This built docker image will later be used together with docker_environment to make the go build. After building the Docker image, we get the below error when we try to build the Go project. We do this build with the

pants package src:bin_windows

command. Error output:

❯ pants package src:bin_windows
13:37:24.09 [INFO] Initialization options changed: reinitializing scheduler...
13:37:24.49 [INFO] Scheduler initialized.
13:37:29.12 [ERROR] 1 Exception encountered:

Engine traceback:
  in `package` goal

ValueError: Unable to analyze main package `src:src` for go_binary target src:bin_windows: Failed to analyze Go sources generated from pants-golang/src.

This may be a bug in Pants. Please report this issue at <https://github.com/pantsbuild/pants/issues/new/choose> and include the following data: error:


    ~/Documents/dev/test/pants-golang

If you want to verify whether there is a problem with the docker image, you can verify it with the following commands. • Run the docker image that we previously built with Pants in the project directory with the

docker run -it -v $(pwd):/app --entrypoint=/bin/bash xgo-windows-build-agent

command. • I use the

cd /app

command to switch the current directory as /app in Docker, then when we run the

go build src/main.go

command. After this command, we can see that the

main.exe

file is created. How can we solve this problem, does anyone have an idea? I would appreciate your help. Thanks.

Thanks for providing a reproduction (for future reference - a github repo would be preferable to a zip file, but this is OK too). I'll take a look.

Next time I'll share it as a github repo. Thanks for your interest. We are waiting.

I'm not able to even build the docker image