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Merged
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May 31, 2025
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Enforce a minimum Xcode version for Open Source testing workflows #527

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4 changes: 2 additions & 2 deletions README.md
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Expand Up @@ -12,11 +12,11 @@ When building SwiftPM from sources which include Swift Build integration, passin

### With Xcode

Changes to swift-build can also be tested in Xcode using the `launch-xcode` command plugin provided by the package. Run `swift package --disable-sandbox launch-xcode` from your checkout of swift-build to launch a copy of the currently `xcode-select`ed Xcode.app configured to use your modified copy of the build system service. This workflow is currently supported when using Xcode 16.2.
Changes to swift-build can also be tested in Xcode using the `launch-xcode` command plugin provided by the package. Run `swift package --disable-sandbox launch-xcode` from your checkout of swift-build to launch a copy of the currently `xcode-select`ed Xcode.app configured to use your modified copy of the build system service. This workflow is generally only supported when using the latest available Xcode version.

### With xcodebuild

Changes to swift-build can also be tested in xcodebuild using the `run-xcodebuild` command plugin provided by the package. Run `swift package --disable-sandbox run-xcodebuild` from your checkout of swift-build to run xcodebuild from the currently `xcode-select`ed Xcode.app configured to use your modified copy of the build system service. Arguments followed by `--` will be forwarded to xcodebuild unmodified. This workflow is currently supported when using Xcode 16.2.
Changes to swift-build can also be tested in xcodebuild using the `run-xcodebuild` command plugin provided by the package. Run `swift package --disable-sandbox run-xcodebuild` from your checkout of swift-build to run xcodebuild from the currently `xcode-select`ed Xcode.app configured to use your modified copy of the build system service. Arguments followed by `--` will be forwarded to xcodebuild unmodified. This workflow is generally only supported when using the latest available Xcode version.

### Debugging

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6 changes: 6 additions & 0 deletions Sources/SWBCore/Core.swift
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Expand Up @@ -245,6 +245,12 @@ public final class Core: Sendable {
// If the ProductBuildVersion key is missing, we use "UNKNOWN" as the value.
self.xcodeProductBuildVersion = info.productBuildVersion ?? ProductBuildVersion(major: 0, train: "A", build: 0, buildSuffix: "")
self.xcodeProductBuildVersionString = info.productBuildVersion?.description ?? "UNKNOWN"

// Enforce a minimum Xcode version for Open Source testing workflows
let minimumXcodeVersion = Version(16, 2)
if xcodeVersion < minimumXcodeVersion {
throw StubError.error("This build of Swift Build requires a minimum Xcode version of \(minimumXcodeVersion.description) (current version: \(xcodeVersion.zeroTrimmed.description)).")
}
} else {
// Set an arbitrary version for testing purposes.
self.xcodeVersion = Version(99, 99, 99)
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