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Adding Catalina-compatible FileHandle operations #678

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Oct 14, 2020
Merged

Adding Catalina-compatible FileHandle operations #678

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8 changes: 8 additions & 0 deletions Support/FoundationFileSystem.swift
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Original file line number Diff line number Diff line change
Expand Up @@ -64,8 +64,16 @@ public struct FoundationFile: File {
/// Parameter value: data to be appended at the end.
public func append(_ value: Data) throws {
let fileHandler = try FileHandle(forUpdating: location)
#if os(macOS)
// The following are needed in order to build on macOS 10.15 (Catalina). They can be removed
// once macOS 10.16 (Big Sur) is prevalent enough as a build environment.
fileHandler.seekToEndOfFile()
fileHandler.write(value)
fileHandler.closeFile()
#else
try fileHandler.seekToEnd()
try fileHandler.write(contentsOf: value)
try fileHandler.close()
#endif
}
}