Cache loader?

[strarsis]

Does it make sense using the webpack cache-loader with this responsive-loader for speeding up builds?

[jstcki]

I haven't tried but I think it makes sense.

[daniel100097]

{
    test: /\.(jpe?g|png)$/i,
    use: [{
        loader: "cache-loader",
    }, {
        loader: "url-loader",
        options: {
            adapter: require("responsive-loader/jimp"),
            fallback: "responsive-loader",
            limit: 8192,
            sizes: isProd() ? [720, 1024, 1920] : [1920],
            format: "png",
        },
    }],

}

[strarsis]

@daniel100097: Thanks, but when I try that config no resized image files are emitted anymore.
sharp is used instead of jimp in this setup, maybe this causes the issue?

[DotIN13]

After doing a bit experiment, I figured that the deprecated cache-loader was substituted by the cache option, documented on Caching | webpackwebpack.js.org › guides › caching. The images cached will not be regenerated between builds.

I managed to lower my rebuild time from 160s to 0.4s with the following setting:

module.exports = {
  ...
   cache: {
        type: "filesystem",
        cacheDirectory: path.resolve(__dirname, '.webpack-cache'),
    }
}

[strarsis]

@DotIN13: Awesome! Thanks.

[slorber]

@DotIN13 are the resized images cached in the node_modules/.cache/webpack folder too as a .pack file?

[DotIN13]

@DotIN13 are the resized images cached in the node_modules/.cache/webpack folder too as a .pack file?

As I see it, the cache config I posted does not involve a node_modules/.cache directory. Looks like the cache generated were all stored in .webpack-cache dir.

[slorber]

@DotIN13 it's the default cache location.

Do to reword my question: do you see images in .webpack-cache? Or do you fthink images are in a pack file?

[DotIN13]

@DotIN13 it's the default cache location.

Do to reword my question: do you see images in .webpack-cache? Or do you fthink images are in a pack file?

Okay, yes, image caches were bundled in .pack files by webpack. And as webpack isn't regenerating any new images during rebuilds, I suppose that the resized images were included in those .pack files.