native macOS codings agent orchestrator prowl.onev.cat
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Swift
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enum GitWorktreeHeadResolver { static func headURL(for worktreeURL: URL, fileManager: FileManager) -> URL? { let gitURL = worktreeURL.appending(path: ".git") var isDirectory = ObjCBool(false) guard fileManager.fileExists( atPath: gitURL.path(percentEncoded: false), isDirectory: &isDirectory ) else { return nil } if isDirectory.boolValue { return gitURL.appending(path: "HEAD") } guard let contents = try? String(contentsOf: gitURL, encoding: .utf8) else { return nil } guard let line = contents.split(whereSeparator: \.isNewline).first else { return nil } let trimmed = line.trimmingCharacters(in: .whitespacesAndNewlines) let prefix = "gitdir:" guard trimmed.hasPrefix(prefix) else { return nil } let pathPart = trimmed.dropFirst(prefix.count).trimmingCharacters(in: .whitespacesAndNewlines) guard !pathPart.isEmpty else { return nil } let gitdirURL = URL(fileURLWithPath: String(pathPart), relativeTo: worktreeURL) .standardizedFileURL return gitdirURL.appending(path: "HEAD") }}