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docs: update WASM build requirements for wasi-sdk

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Since v0.26.1, `tree-sitter build --wasm` uses wasi-sdk instead of
Emscripten. The CLI automatically downloads wasi-sdk on first use,
so Emscripten, Docker, and Podman are no longer required.

Update the web binding README to reflect this change.

See #4393 for the original switch to wasi-sdk.
This commit is contained in:
Aaron Paterson 2026-03-16 18:31:03 -06:00 committed by Christian Clason
parent cc2ed5e85f
commit cb01ffcc3f
1 changed files with 4 additions and 1 deletions
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lib/binding_web/README.md
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@ -174,7 +174,9 @@ For example, you can download the JavaScript `.wasm` file from the tree-sitter-j
You can also generate the `.wasm` file for your desired grammar. Shown below is an example of how to generate the `.wasm`
file for the JavaScript grammar.
**IMPORTANT**: [Emscripten][emscripten], [Docker][docker], or [Podman][podman] need to be installed.
> [!NOTE]
> Since v0.26.1, `tree-sitter build --wasm` uses [wasi-sdk][] and will automatically download it on first use.
> No additional tools need to be installed.
First install `tree-sitter-cli`, and the tree-sitter language for which to generate `.wasm`
(`tree-sitter-javascript` in this example):
@ -263,3 +265,4 @@ following to your webpack config:
[node bindings]: https://github.com/tree-sitter/node-tree-sitter
[npm module]: https://www.npmjs.com/package/web-tree-sitter
[podman]: https://podman.io
[wasi-sdk]: https://github.com/WebAssembly/wasi-sdk