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Enable pruning downloaded models #71

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Enable pruning downloaded models #71

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689fd16
Enable pruning downloaded models
ashtonmeuser Sep 24, 2025
2f8c984
Allow LocalModel to be excluded from prune
ashtonmeuser Sep 24, 2025
1256c61
PR suggestions
ashtonmeuser Sep 24, 2025
28999b2
Update signature
ashtonmeuser Sep 25, 2025
fc303c6
Move empty directory pruning logic
ashtonmeuser Sep 25, 2025
857256e
Move core logic to FIleManager extension
ashtonmeuser Sep 25, 2025
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22 changes: 22 additions & 0 deletions Sources/LocalLLMClientCore/LLMSession.swift
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Original file line number Diff line number Diff line change
Expand Up @@ -302,6 +302,28 @@ public extension LLMSession {
public func downloadModel(onProgress: @Sendable @escaping (Double) async -> Void = { _ in }) async throws {
try await downloader.download(onProgress: onProgress)
}

public static func pruneModels(in url: URL = FileDownloader.defaultRootDestination, excluding: [Model] = []) throws {
guard let enumerator = FileManager.default.enumerator(at: url, includingPropertiesForKeys: [.isDirectoryKey], options: [.skipsPackageDescendants]) else { return }

let excludingNormalized: [URL] = excluding.compactMap {
let model = $0 as? Self
return model?.modelPath.resolvingSymlinksInPath().standardizedFileURL
}

for case let fileURL as URL in enumerator {
if excludingNormalized.contains(fileURL.resolvingSymlinksInPath().standardizedFileURL) {
enumerator.skipDescendants()
continue
}

if (try? fileURL.resourceValues(forKeys: [.isDirectoryKey]))?.isDirectory == false {
try FileManager.default.removeItem(at: fileURL)
}
}

try url.removeEmptyFolders()
}
}

struct LocalModel: Model {
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13 changes: 13 additions & 0 deletions Sources/LocalLLMClientUtility/URL+.swift
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Original file line number Diff line number Diff line change
Expand Up @@ -18,4 +18,17 @@ package extension URL {
return url
#endif
}

func removeEmptyFolders() throws {
guard isFileURL else { return }

let contents = try FileManager.default.contentsOfDirectory(at: self, includingPropertiesForKeys: [.isDirectoryKey])
let subdirectories = contents.filter { (try? $0.resourceValues(forKeys: [.isDirectoryKey]))?.isDirectory == true }

for subdirectory in subdirectories { try subdirectory.removeEmptyFolders() }

guard try FileManager.default.contentsOfDirectory(at: self, includingPropertiesForKeys: nil).isEmpty else { return }

try FileManager.default.removeItem(at: self)
}
}