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Following up on swiftlang/github-workflows#106 and swiftlang/swift#80788, this PR contains a new
swift-docker/swift-ci/sdks/android/
folder with scripts that will build and upload a full stand-alone Swift Android Swift SDK. It is modeled after the structure of the swift-ci/sdks/static-linux build scripts.Running
The top-level
./build
script installs a host toolchain and the Android NDK, and then invokesscripts/fetch-source.sh
which will fetch tagged sources for libxml2, curl, boringssl, and swift.It then applies some patches and invokes
scripts/build.sh
, which will build the sources for each of the specified architectures. Finally, it combines the NDK and the newly built SDKs into a single artifactbundle.Specifying Architectures
By default all the supported Android architectures (
aarch64
,x86_64
,aarmv7
) will be built, but this can be reduced in order to speed up the build. This can be useful, e.g., as part of a CI that validates a pull request, as building a single architecture takes around 30 minutes on a standard ubuntu-24.04 GitHub runner, whereas building for all the architectures takes over an hour.To build an artifactbundle for just the
x86_64
architecture, run:Installing and validating the SDK
The
.github/workflows/pull_request.yml
workflow will create and upload an installable SDK named something like:swift-6.1-RELEASE_android-0.1.artifactbundle.tar.gz
. The results of one of the workflow runs can be seen at https://github.com/swift-android-sdk/swift-docker/actions/runs/14603885089The workflow will also install the SDK locally and use swift-android-action to build and test various Swift packages in an Android emulator.