Cloudflare Developers•3y ago

I have a project that is basically a tiny shell script which runs a localhost server, captures a PDF

I have a project that is basically a tiny shell script which runs a localhost server, captures a PDF, and kills it. It's written in Svelte and the script is in bash.

© 2026 Hedgehog Software, LLC

More

Communities Docs About Terms Privacy

GetPsyched

G

GetPsychedOP•10/4/23, 6:07 AM

What can I use to host this?

GetPsyched

G

GetPsychedOP•10/4/23, 6:07 AM

Workers or Pages Functions

GetPsyched

G

GetPsychedOP•10/4/23, 6:08 AM

My use case is just a stateless API that has a single route that takes data as input and shoots out a PDF

GetPsyched

GGetPsyched I have a project that is basically a tiny shell script which runs a localhost se...

Hello, I’m Allie!

H

Hello, I’m Allie!•10/4/23, 7:52 AM

If you rewrite the shell script to use Functions, then it should be fine on Pages

katopz

K

katopz•10/4/23, 7:53 AM

Same here Could not resolve host: github.comCould not resolve host: github.com

14:46:09.021    Cloning repository...
14:46:09.328    fatal: unable to access 'https://github.com/gist-rs/ai/': Could not resolve host: github.com
14:46:09.329    
14:46:10.251    Failed: error occurred while fetching repo

14:46:09.021    Cloning repository...
14:46:09.328    fatal: unable to access 'https://github.com/gist-rs/ai/': Could not resolve host: github.com
14:46:09.329    
14:46:10.251    Failed: error occurred while fetching repo

Hello, I’m Allie!

HHello, I’m Allie!If you rewrite the shell script to use Functions, then it should be fine on Page...

GetPsyched

G

GetPsychedOP•10/4/23, 8:03 AM

What languages can I rewrite it in?

GetPsyched

GGetPsyched What languages can I rewrite it in?

Hello, I’m Allie!

H

Hello, I’m Allie!•10/4/23, 8:04 AM

JavaScript/TypeScript

Hello, I’m Allie!

H

Hello, I’m Allie!•10/4/23, 8:04 AM

Though you could probably make it a part of your Svelte App

GetPsyched

G

GetPsychedOP•10/4/23, 8:04 AM

So, I can execute bash through TypeScript I guess

Hello, I’m Allie!

HHello, I’m Allie!Though you could probably make it a part of your Svelte App

GetPsyched

G

GetPsychedOP•10/4/23, 8:05 AM

The main problem is that how will CF download my dependencies?

GetPsyched

GGetPsyched So, I can execute bash through TypeScript I guess 🤔

Hello, I’m Allie!

H

Hello, I’m Allie!•10/4/23, 8:05 AM

No, because Functions doesn't have a Bash interpreter.

GetPsyched

G

GetPsychedOP•10/4/23, 8:05 AM

on my local system I do it using nix developnix develop

GetPsyched

GGetPsyched The main problem is that how will CF download my dependencies?

Hello, I’m Allie!

H

Hello, I’m Allie!•10/4/23, 8:05 AM

During the build step

Hello, I’m Allie!

H

Hello, I’m Allie!•10/4/23, 8:05 AM

Or you can build it locally

Hello, I’m Allie!

HHello, I’m Allie!No, because Functions doesn't have a Bash interpreter.

GetPsyched

G

GetPsychedOP•10/4/23, 8:05 AM

ah rip so I'll have to do a significant refactor

Hello, I’m Allie!

HHello, I’m Allie!Or you can build it locally

GetPsyched

G

GetPsychedOP•10/4/23, 8:05 AM

huh?

GetPsyched

GGetPsyched huh?

Hello, I’m Allie!

H

Hello, I’m Allie!•10/4/23, 8:06 AM

If you run the build locally with nixnix(or another build/dependency tool), then all of your dependencies will be bundled before being deployed.

GetPsyched

G

GetPsychedOP•10/4/23, 8:06 AM

Oh so basically I push my pre-built stuff

GetPsyched

G

GetPsychedOP•10/4/23, 8:06 AM

hmm

GetPsyched

G

GetPsychedOP•10/4/23, 8:07 AM

idk if that's even possible with nix

GetPsyched

G

GetPsychedOP•10/4/23, 8:07 AM

I'll check

Hello, I’m Allie!

HHello, I’m Allie!Though you could probably make it a part of your Svelte App

GetPsyched

G

GetPsychedOP•10/4/23, 8:07 AM

Weird. I have bash commands that just don't exist as libraries

GetPsyched

GGetPsyched idk if that's even possible with nix

Hello, I’m Allie!

H

Hello, I’m Allie!•10/4/23, 8:08 AM

I mean that was just an example. If you are using Functions, then unless you use WebAssembly, you will probably be using

npm

npm

/pnpmpnpm/

yarn

yarn

/

bun

bun

, etc.

GetPsyched

G

GetPsychedOP•10/4/23, 8:08 AM

Those things would simply be impossible?

GetPsyched

GGetPsyched Those things would simply be impossible?

Hello, I’m Allie!

H

Hello, I’m Allie!•10/4/23, 8:08 AM

Not impossible, you would just have to rewrite them into JS/TS yourself

Hello, I’m Allie!

HHello, I’m Allie!I mean that was just an example. If you are using Functions, then unless you use...

GetPsyched

G

GetPsychedOP•10/4/23, 8:08 AM

those don't come with those deps

Hello, I’m Allie!

HHello, I’m Allie!Not impossible, you would just have to rewrite them into JS/TS yourself

GetPsyched

G

GetPsychedOP•10/4/23, 8:08 AM

yeah

GetPsyched

G

GetPsychedOP•10/4/23, 8:08 AM

weird that CF doesn't support bash

GetPsyched

G

GetPsychedOP•10/4/23, 8:08 AM

I guess it's for security reasons

GetPsyched

G

GetPsychedOP•10/4/23, 8:09 AM

but a big bummer nonetheless

GetPsyched

GGetPsyched weird that CF doesn't support bash

Hello, I’m Allie!

H

Hello, I’m Allie!•10/4/23, 8:09 AM

No, it’s just because the runtime isn’t a container or a VM

Hello, I’m Allie!

H

Hello, I’m Allie!•10/4/23, 8:09 AM

Which is why it is so fast

GetPsyched

G

GetPsychedOP•10/4/23, 8:09 AM

makes sense

Hello, I’m Allie!

H

Hello, I’m Allie!•10/4/23, 8:09 AM

Like how Functions don’t have a file system

GetPsyched

G

GetPsychedOP•10/4/23, 8:09 AM

yeah, gotcha

GetPsyched

G

GetPsychedOP•10/4/23, 8:10 AM

so even if I push the deps from Nix to CF, it won't be able to use them since they're shell commands

GetPsyched

GGetPsyched so even if I push the deps from Nix to CF, it won't be able to use them since th...

Hello, I’m Allie!

H

Hello, I’m Allie!•10/4/23, 8:10 AM

That is correct

GetPsyched

G

GetPsychedOP•10/4/23, 8:10 AM

my app is literally so close to being a serverless app but not close enough

GetPsyched

GGetPsyched my app is literally so close to being a serverless app but not close enough

Hello, I’m Allie!

H

Hello, I’m Allie!•10/4/23, 8:11 AM

Need a Serverless bash runtime smh

GetPsyched

G

GetPsychedOP•10/4/23, 8:11 AM

lol

GetPsyched

G

GetPsychedOP•10/4/23, 8:11 AM

even if I managed to do this in Svelte, the outputs may vary from what the shell script produces

GetPsyched

G

GetPsychedOP•10/4/23, 8:17 AM

Can I run

bun

bun

commands at least?

GetPsyched

G

GetPsychedOP•10/4/23, 8:17 AM

something like: cd dist && bun ssr.jscd dist && bun ssr.js

GetPsyched

GGetPsyched Can I run `bun` commands at least?

Hello, I’m Allie!

H

Hello, I’m Allie!•10/4/23, 8:18 AM

Nope. No cd, no bun, no commands at all

Hello, I’m Allie!

H

Hello, I’m Allie!•10/4/23, 8:19 AM

Workers/Functions are their own JS Runtime, just like how Bun is different from Node

Hello, I’m Allie!

HHello, I’m Allie!Nope. No cd, no bun, no commands at all

GetPsyched

G

GetPsychedOP•10/4/23, 8:21 AM

Okay, then, can I at least use https://www.npmjs.com/package/prince?

GetPsyched

G

GetPsychedOP•10/4/23, 8:21 AM

It needs the prince CLI installed

14:46:09.021    Cloning repository...
14:46:09.328    fatal: unable to access 'https://github.com/gist-rs/ai/': Could not resolve host: github.com
14:46:09.329    
14:46:10.251    Failed: error occurred while fetching repo

14:46:09.021    Cloning repository...
14:46:09.328    fatal: unable to access 'https://github.com/gist-rs/ai/': Could not resolve host: github.com
14:46:09.329    
14:46:10.251    Failed: error occurred while fetching repo