"npm build" is not working correctly on Windows

[JaroslawLegierski]

Question

When I building project (latest master) on Windows (Windows 10 Pro 22H2) process node.exe hangs during following command execution:

[INFO] Running 'yarn build' in C:\ ..... repo\leshan\leshan-server-demo\webapp
[INFO] yarn run v1.22.19
[INFO] $ vite build --emptyOutDir
[INFO] vite v5.0.2 building for production...
[INFO] transforming...

During the Windows system trace, I noticed that node.exe was looking for a file package.json in C:\

I found temporary workaround by coping package.json from \leshan-server-demo\webapp\ to the C:\ 😉

[sbernard31]

That sounds strange...

Probably because of : #1541

But it works well on my dev machine, on jenkins and on github action. (but this is all linux)

I haven't window machine so I can test that.
Do you also face issue when you are using a terminal in git/leshan/leshan-server-demo/webapp then run :
yarn build ? (without the workaround of course)

[JaroslawLegierski]

Do you also face issue when you are using a terminal in git/leshan/leshan-server-demo/webapp then run :
yarn build ? (without the workaround of course)

When I starting yarn build in webapp directory node.exe is stopping here:

$ vite build --emptyOutDir
vite v5.0.2 building for production...
transforming (510) src\components\values\input\DateTimeValueInput.vue

[sbernard31]

And with your workaround it works ?

[JaroslawLegierski]

And with your workaround it works ?

Yes - works 😉

[sbernard31]

In our code base, I think code about vite path resolution could be :

leshan/leshan-server-demo/webapp/vite.config.js

Lines 29 to 31 in caf3f35

	nodeResolve({
	modulePaths: [path.resolve("./node_modules")],
	}),

leshan/leshan-server-demo/webapp/vite.config.js

Lines 62 to 71 in caf3f35

	resolve: {
	alias: {
	"@": path.resolve(__dirname, "./src"),
	"@leshan-server-core-demo": path.join(
	__dirname,
	"../../leshan-server-core-demo/webapp/src"
	),
	},
	extensions: [".js", ".vue"],
	},

Maybe you can try to investigate around this to see ?
(e.g. replacing path.resolve by path.posix.resolve OR replacing __dirname by hardcoded value OR ... )

[sbernard31]

I check vite repository to see If there was some issue opened which could looks like to that, I didn't see anything...

But maybe you can try to get last vite version:

yarn upgrade
yarn build

[sbernard31]

Maybe also a node bug ? but I didn't investigate this too much because I guess you don't use same node version when you did yarn build directly in webapp folder and when you run mvn clean install.

[JaroslawLegierski]

Thank you for your advices. I tested all proposed above solutions but I still have this issue. I think that we have problem with passing the path (or converting it 'eg: ./ -> /) in one of the libraries used by esbuild:

For now, I will use the workaround and I plan to switch to other leshan tasks 😉

[sbernard31]

OK too bad that we didn't succeed to solve this. 😞
Not a good news that windows user will not be able to build Leshan anymore.

Hoping that maybe another contributor will be able to investigate 🤞

[JaroslawLegierski]

I'm afraid that only Magda and me are using Windows in leshan development. I going to return to this issue after finish #1089