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Make the lookup of the PackageDescription dylib fall back on the versioned location if needed #3560

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Merged
merged 1 commit into from
Jun 21, 2021
Merged

Make the lookup of the PackageDescription dylib fall back on the versioned location if needed #3560

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13 changes: 12 additions & 1 deletion Sources/PackageLoading/ManifestLoader.swift
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Original file line number Diff line number Diff line change
Expand Up @@ -938,7 +938,18 @@ public final class ManifestLoader: ManifestLoaderProtocol {
/// Returns the runtime path given the manifest version and path to libDir.
private func runtimePath(for version: ToolsVersion) -> AbsolutePath {
// Bin dir will be set when developing swiftpm without building all of the runtimes.
return resources.binDir ?? resources.libDir.appending(component: "ManifestAPI")
if let binDir = resources.binDir {
return binDir
}

// Otherwise we use the standard location of the manifest API in the toolchain, if it exists.
let manifestAPIDir = resources.libDir.appending(component: "ManifestAPI")
if localFileSystem.exists(manifestAPIDir) {
return manifestAPIDir
}

// Otherwise, fall back on the old location (this would indicate that we're using an old toolchain).
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should we emit some warning in this case, or is it valid?

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This is valid. It's due to the different locations of PackageDescription, both of which are valid, but are different depending on whether the toolchain has the unified implementation or not.

return resources.libDir.appending(version.runtimeSubpath)
}

/// Returns path to the manifest database inside the given cache directory.
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