Brett Cannon (Sep 29 2023 at 00:11): Brett Cannon (Sep 29 2023 at 00:11):I realize this might a slightly controversial ask, but I'm trying to get a list of popular WASI runtimes to compare their CLIs. I'm trying to see if there's any commonality in how they specify environment variables and host:local directory mappings. I've already checked wasmtime, wasmedge, and wazero out (wasmtime uses --mapdir, the other two use --dir; all three use --env). WAMR/iwasm doesn't seem to suport mapping directories to a different location within the runtime.
Diego Antonio Rosario Palomino (Sep 29 2023 at 06:13):Most wasm runtimes are embedded in Javascript. You could try like the one in chrome
Ramon Klass (Sep 29 2023 at 10:30):I think he is currently only investigating WASI (not WASM) runtimes that can run server-side WASI with virtualization, the browser wasm is boring, we all know what it supports and what it doesn't ;)
Ralph (Sep 29 2023 at 10:46):wasmtime, wasm3, wamr, wazero, wasmedge, wasmer, node, deno? are the ones off the top of my head, each one doing some "version" of wasi - up to you to explore to what extent.
Ralph (Sep 29 2023 at 10:47):if you want more, I can find them, because there are a lot of experimental and academic ones as well.
Ralph (Sep 29 2023 at 11:10):WaVe, Wizard, F<number goes here>, ....
Milan (Sep 29 2023 at 11:47):For browser wasi there is the runno.dev
JS API: https://runno.dev/docs/wasi/#md:quickstart
And declarative web component API: https://runno.dev/articles/wasi-web-component
Milan (Sep 29 2023 at 11:50):wasi-virt could also be in the list of clis setting up mappings for wasi apis
Brett Cannon (Sep 30 2023 at 00:49):Ramon Klass said:
I think he is currently only investigating WASI (not WASM) runtimes that can run server-side WASI with virtualization
Correct! This is specifically about seeing what it would take to support various WASI runtimes for building CPython instead of hard-coding wasmtime (as I'm doing right now out of laziness).
Ralph (Oct 02 2023 at 10:18):wasmtime is about to support preview 2 wasi, jco will soon, wamr will take a bit more, outside of that I have no knowledge at this time.
Ralph (Oct 02 2023 at 12:39):I think possibly more interesting is the ability for a runtime that supports preview 2 to also run preview 1, which is something that the ecosystem is making possible.....
Brett Cannon (Oct 05 2023 at 00:41):I looked at wasmtime, wazero, wasmer, wasmedge, wasm3, and WAMR/iwasm. The last two don't have all the CLI flags I was looking for. For for the 4 that did, they all support --env, but vary on how to map a guest directory to a host directory (there's --mapdir, --dir via host:guest format, and --mount among them).
Ralph (Oct 05 2023 at 08:41):right, I'll reach out to the wamr team about these flags.
Brett Cannon (Oct 19 2023 at 18:46):FYI wasmtime 14 is switching to --dir according to https://github.com/bytecodealliance/wasmtime/pull/6925, although they are using :: as the path separator while wasmedge uses :
Alex Crichton (Oct 20 2023 at 00:14):I've opened an issue for this for what syntax to pick for Wasmtime
Last updated: Dec 23 2024 at 12:05 UTC