setup-swiftwasm

A GitHub Action that installs a Swift SDK for WebAssembly.

Requirements

This action requires a runner with Swift installed.

Usage

runs-on: ubuntu-latest
container: swift:6.0.3
steps:
  - uses: swiftwasm/setup-swiftwasm@v2
  - run: swift build --swift-sdk wasm32-unknown-wasi

To install a Swift SDK compatible with a specific Swift version, add the following to your workflow file:

- uses: swiftwasm/setup-swiftwasm@v2
  with:
    tag: "swift-DEVELOPMENT-SNAPSHOT-2025-02-26-a"

To install a Swift SDK for other targets, add the following to your workflow file:

- uses: swiftwasm/setup-swiftwasm@v2
  with:
    target: "wasm32-unknown-wasip1-threads"

Inputs

Input	Default	Description
tag	The version of swift found in the PATH.	The tag name of swiftlang/swift repository to download the Swift SDK compatible with.
target	wasm32-unknown-wasi	The target to install the Swift SDK for.

Outputs

Output	Description
swift-sdk-id	The ID of the installed Swift SDK. You can pass this to --swift-sdk option of swift build command.