Server Side Rendering

[iacore]

Currently, crates.io need Javascript to work. It doesn't need to be. I want to add server-side rendering to crates.io to make the page load faster. If the API calls are internal, the page will load much faster.

Also, on https://crates.io/crates/clap, the website fetch from https://play.rust-lang.org/meta/crates. It makes no sense. There is a lot to optimize.

[iacore]

The code base is using fastboot, but it's not doing anything.

(search for @service fastboot)

[Turbo87]

we have experimented with using fastboot in the past, but back then it caused us to use up a lot more memory on the servers and with the constrained resources we have available it wasn't feasible yet. I think we would have to separately server frontend and backend from different machines if we want to go down this route, to not worsen the performance of the API, which is also used by things like cargo and other services.

on https://crates.io/crates/clap, the website fetch from https://play.rust-lang.org/meta/crates.

that is intentional. on the crates that are available on the playground we show a "try on the playground" button, but to be able to do that we need to know what crates are available there. we only load that data once on app startup though and not on every crate page.

[iacore]

I want to try it again. In the current codebase index.html hardcoded assets/cargo.js. From my limited understanding of ember, that's bad practice.

[iacore]

I feel like ember is the culprit. I'll try to make a demo using svelte.

[iacore]

ember's compiler is garbage too. When I run yarn build, the compiler uses a lot of CPU%, and even after the command finishes, there is still one thread lingering, using 100% CPU. I don't understand this.

[Turbo87]

From my limited understanding of ember, that's bad practice.

I don't know why you think that that is bad practice?

I feel like ember is the culprit. I'll try to make a demo using svelte.

feel free to work on that, but a large scale rewrite like that is very unlikely to be merged any time soon for various reasons, including our current code review capacity. I'm also slightly sceptical whether it would solve the issue, since we would still need to run Node.js on the servers, which creates the additional memory pressure.

[iacore]

I don't know why you think that that is bad practice?
It's hard for other tools to do static analsis.

[carols10cents]

ember's compiler is garbage too.

We don't bash tools like that here. Please try to be more constructive in the future.

…

On Tue, Jan 4, 2022, 8:59 AM Tobias Bieniek ***@***.***> wrote: From my limited understanding of ember, that's bad practice. I don't know why you think that that is bad practice? I feel like ember is the culprit. I'll try to make a demo using svelte. feel free to work on that, but a large scale rewrite like that is very unlikely to be merged any time soon for various reasons, including our current code review capacity. I'm also slightly sceptical whether it would solve the issue, since we would still need to run Node.js on the servers, which creates the additional memory pressure. — Reply to this email directly, view it on GitHub <#4404 (reply in thread)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AABPKUSB4WJVB3LU66F5W2DUUL4MHANCNFSM5LGJCW3A> . Triage notifications on the go with GitHub Mobile for iOS <https://apps.apple.com/app/apple-store/id1477376905?ct=notification-email&mt=8&pt=524675> or Android <https://play.google.com/store/apps/details?id=com.github.android&referrer=utm_campaign%3Dnotification-email%26utm_medium%3Demail%26utm_source%3Dgithub>. You are receiving this because you are subscribed to this thread.Message ID: ***@***.*** com>

[iacore]

Sorry, I only can give 2GB of memory to Firefox, a code editor, and ember. If I use VS Code, then my computer would freeze when I try to run ember serve. Then I have to wait till Linux OOM kills it or restart manually.

[iacore]

So, I recreated the index page of crates.io minus CSS and SVG icons using SvelteKit. The page will load without Javascript.

I think the code is cleaner than the official crates.io due to the use of modules, so possibly easier to do code review?.

We still need node or another Javascript engine due to Svelte compiling template to javascript (es5 or commonjs) module.

Code: https://github.com/locriacyber/crates.io-demo

[locks]

Are you familiar with https://lib.rs/ ? It might be what you are looking for.

[iacore]

No. Thank you! How did you know about the website?

[AlexCzar]

Thanks, came here while searching if a similar issue was already filed and found an alternative solution, looks like lib.rs is a good replacement for crates.io, at least for my use case: quick command line lookup :)