Support for bundlers

[azarenkovgd]

I use rollup to bundle my backend code into one js file, then I deploy it, without any additional node modules. There is a problem with this package - it requires some ".node" dependency (sorry for some wrong terminology, I do now know how to explain it better). Path to this dependency is resolved at a runtime. Seems to be, it happens in the file https://github.com/kriszyp/lmdb-js/blob/master/native.js, here:

import loadNAPI from 'node-gyp-build-optional-packages';

...

let dirName = dirname(fileURLToPath(import.meta.url)).replace(/dist$/, '');
export let nativeAddon = loadNAPI(dirName);

Is it possible to allow user to supply path to native addon?

Code could look something like that:

export let nativeAddon: string;
if (process.env["LMDBJS_NATIVE_ADDON_PATH"]) {
    nativeAddon = require(process.env["LMDBJS_NATIVE_ADDON_PATH"]);
} else {
    let dirName = dirname(fileURLToPath(import.meta.url)).replace(/dist$/, '');
    export let nativeAddon = loadNAPI(dirName);
}

I tried studying node-gyp-build-optional-packages package, but seems to be, there is no way to solve this problem "official" way. Hope I am wrong.

[kriszyp]

I don't know if this issue might have some helpful suggestions:
#278
Also, there is some logic to look at env variable to find the directory to look for the binary here:
https://github.com/kriszyp/node-gyp-build/blob/master/index.js#L29
Would that help?

[azarenkovgd]

Thank you for the response!
It helped