Android builds with New Arch fail on Windows build host

[birdofpreyru]

Description

The following line is wrong, because glob expects patterns with / separators, even on Windows; but when the codegen is executed on Windows the file will contain \ separators, causing that query not matching anything:

https://github.com/facebook/react-native/blob/ca0d565a3c9729a68f71bb5572c9971a6ce85d2a/packages/react-native-codegen/src/cli/combine/combine-js-to-schema-cli.js#L25

Changing that line into:

.sync(`${file.replace(/\\/g, '/')}/**/*.{js,ts,tsx}`, {

fixes the issue (well, I verified that codegen then matches expected files there, but it still does not generate expected outputs, so I am still looking for other issues down the line).

React Native Version

0.71.4

Output of npx react-native info

N/A

Steps to reproduce

N/A

Snack, code example, screenshot, or link to a repository

N/A

[cortinico]

Thanks for reporting this. Yup we should fix this one. Are you up for sending a PR against codegen?

[birdofpreyru]

Yeap, I'll probably do the next week. Still have to figure out what else doesn't work right there.

[birdofpreyru]

Hey @cortinico , I created a PR in Codegen above, fixing schema.json generation on Windows, in a slightly better way.

I tried to further look into why my build still fail, could not figure it out so far. As you see in the screenshot below, it now fails in Ninja build step, saying "No such file or directory", but as you see in the lower half of the screenshot, that folder is actually created by Ninja, although empty. I tried to look around for some additional info in the logs / ninja.build file, so far could not understand why it happens. Saw in Google, it might be a consequence of long pathnames and little CMAKE_OBJECT_PATH_MAX value, and indeed I had a warning about it in logs, so I tried to bump the value up to 4096 – it cleared warnings about paths being dangerously long, but did not change error reported by Ninja.

Thus, I decided to make a pause, create the PR with the first bit of the fix, and ask you for advice, if you have ideas what can be the trouble with Ninja, and what / where should I look to figure it out?