[BUG?] lved-cli - emcmake command not found when running tests

[JohnGoewert]

LVGL Pro 2.0.1
LVGL CLI 2.0.1
LVL 9.5

Running In Ubuntu 22.04

Tests run correctly in the LVGL Pro IDE which is run in Windows. When trying to run using the CLI, it seems to be missing the emcmake.

node /usr/local/bin/lved-cli.js run-test src/lvgl_ui src/lvgl_ui/tests/components/ut0001_bx_button_blank/ut0001_bx_button_blank.test.xml

To note, I am able to build/validate/etc with the CLI.

node /usr/local/bin/lved-cli.js generate src/lvgl_ui

Log:

Using "lvgl_version" v9.5.0, as specified in project.xml
[LOADING] Building Node runtime...
⌛ Compiling project /code/src/lvgl_ui for node environment
Project name: keystone
⛭ Building runtime for Preview with LVGL v9.5.0
sh: line 1: emcmake: command not found
Build failed: Failed when configuring the Preview runtime
Failed to build the emscripten module
Failed to setup project: Failed to build the emscripten module
[ERROR] Failed to build Node runtime: Failed to build the emscripten module

[mrhubbs]

@JohnGoewert

When you say you can build with the CLI, you mean:

/usr/local/bin/lved-cli.js compile path/to/your/project

works?

Have you compiled this project with the Editor on this machine?

Lastly, what folders are in: YOUR_HOME_DIRECTORY\AppData\Roaming\lvgl-editor?

[JohnGoewert]

For build, I meant generate. I didn't notice this before as I would generate and then compile using my full projects cmake and not the lved-cli compile.

In my Ubuntu container using the lved-cli:
generate - works
compile - fails - sh: line 1: emcmake: command not found
run-test - fails - sh: line 1: emcmake: command not found

I don't run the Pro editor inside of the Ubuntu container that I do my software build in. I run the editor in Windows.

I can generate, compile and run the tests in the LVGL Pro IDE in Windows.

[mrhubbs]

I think that answers it. In your Windows host environment, you (or the Editor for you) would have installed the Emscripten toolchain (emsdk) to be able to compile. emsdk isn't installed in your Ubuntu container and hence it's not found. The CLI has to compile the project for itself because it cannot use the version the Editor compiles (even if you were running the CLI and the Pro IDE in the same OS, which you're not).

So you have a two decent options:

1. Install emsdk also in your container (seems heavy).
2. Use the Windows version of the CLI to run the tests in your host Windows machine (should just work out of the box immediately).

I'd love to hear what you think and what your ideal solution would be.

Related, another user was asking about #392 making the Editor remote into a container, for a containerized workflow like yours. How are you accomplishing it - just using a shared folder between the container and host? How well does it work?

[JohnGoewert]

That makes sense. I had thought that the emscripten server came in the lved-cli, as the documentation doesn't call out that it is needed. https://lvgl.io/docs/pro/cli#installation

It's also missing from here - https://lvgl.io/docs/pro/cli#use-case-cicd-pipelines

Though, your actual build script does include it.

lvgl_pro/.github/workflows/pr-check.yml

Line 34 in 4d05fc7

- name: Setup emsdk

My CI/CD github action and full build in docker work similar to this pr-check. I will pull in the mymindstorm/setup-emsdk as well into the github action I have. Looks like that team also did a repo name change recently- emscripten-core/setup-emsdk

[mrhubbs]

Sounds good - we'll add the requirements to our docs.