From 2692c5cff4c499a22fffe11f8f145c19be18f7d9 Mon Sep 17 00:00:00 2001
From: J Logan <john_logan@apple.com>
Date: Tue, 31 Mar 2026 14:48:31 -0700
Subject: [PATCH] Removes unused `Archiver.uncompress()`. (#1372)

- Nothing uses this function, and it does not perform secure extraction.
  Clients should instead use the `ArchiveReader` from the
  ContainerizationArchive library.
---
 .../ContainerAPIService/Client/Archiver.swift | 87 -------------------
 1 file changed, 87 deletions(-)

diff --git a/Sources/Services/ContainerAPIService/Client/Archiver.swift b/Sources/Services/ContainerAPIService/Client/Archiver.swift
index d20fb632..870670f6 100644
--- a/Sources/Services/ContainerAPIService/Client/Archiver.swift
+++ b/Sources/Services/ContainerAPIService/Client/Archiver.swift
@@ -108,93 +108,6 @@ public final class Archiver: Sendable {
         return hasher.finalize()
     }
 
-    public static func uncompress(source: URL, destination: URL) throws {
-        let source = source.standardizedFileURL
-        let destination = destination.standardizedFileURL
-
-        // TODO: ArchiveReader needs some enhancement to support buffered uncompression
-        let reader = try ArchiveReader(
-            format: .paxRestricted,
-            filter: .gzip,
-            file: source
-        )
-
-        for (entry, data) in reader {
-            guard let path = entry.path else {
-                continue
-            }
-            let uncompressPath = destination.appendingPathComponent(path)
-
-            let fileManager = FileManager.default
-            switch entry.fileType {
-            case .blockSpecial, .characterSpecial, .socket:
-                continue
-            case .directory:
-                try fileManager.createDirectory(
-                    at: uncompressPath,
-                    withIntermediateDirectories: true,
-                    attributes: [
-                        FileAttributeKey.posixPermissions: entry.permissions
-                    ]
-                )
-            case .regular:
-                try fileManager.createDirectory(
-                    at: uncompressPath.deletingLastPathComponent(),
-                    withIntermediateDirectories: true,
-                    attributes: [
-                        FileAttributeKey.posixPermissions: 0o755
-                    ]
-                )
-                let success = fileManager.createFile(
-                    atPath: uncompressPath.path,
-                    contents: data,
-                    attributes: [
-                        FileAttributeKey.posixPermissions: entry.permissions
-                    ]
-                )
-                if !success {
-                    throw POSIXError.fromErrno()
-                }
-                try data.write(to: uncompressPath)
-            case .symbolicLink:
-                guard let target = entry.symlinkTarget else {
-                    continue
-                }
-                try fileManager.createDirectory(
-                    at: uncompressPath.deletingLastPathComponent(),
-                    withIntermediateDirectories: true,
-                    attributes: [
-                        FileAttributeKey.posixPermissions: 0o755
-                    ]
-                )
-                try fileManager.createSymbolicLink(atPath: uncompressPath.path, withDestinationPath: target)
-                continue
-            default:
-                continue
-            }
-
-            // FIXME: uid/gid for compress.
-            try fileManager.setAttributes(
-                [.posixPermissions: NSNumber(value: entry.permissions)],
-                ofItemAtPath: uncompressPath.path
-            )
-
-            if let creationDate = entry.creationDate {
-                try fileManager.setAttributes(
-                    [.creationDate: creationDate],
-                    ofItemAtPath: uncompressPath.path
-                )
-            }
-
-            if let modificationDate = entry.modificationDate {
-                try fileManager.setAttributes(
-                    [.modificationDate: modificationDate],
-                    ofItemAtPath: uncompressPath.path
-                )
-            }
-        }
-    }
-
     // MARK: private functions
     private static func _compressFile(item: URL, entry: WriteEntry, archiver: ArchiveWriter, hasher: inout SHA256) throws {
         guard let stream = InputStream(url: item) else {