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fix(save): lock staging directory against concurrent gc

This commit is contained in:
Ben Boeckel 2026-07-07 12:38:30 -04:00
parent 6231f95021
commit 392462ec10
1 changed files with 6 additions and 0 deletions
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6
Sources/tart/OCI/OCIArchiveWriter.swift
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@ -3,6 +3,7 @@ import Foundation
class OCIArchiveWriter {
private let tmpDir: URL
private let blobsDir: URL
private let lock: FileLock
private var manifestDigest: String?
private var manifestSize: Int?
private var manifestReferences: [String] = []
@ -12,9 +13,14 @@ class OCIArchiveWriter {
tmpDir = try Config().tartTmpDir.appendingPathComponent(UUID().uuidString)
blobsDir = tmpDir.appendingPathComponent("blobs/sha256")
try FileManager.default.createDirectory(at: blobsDir, withIntermediateDirectories: true)
lock = try FileLock(lockURL: tmpDir)
if try !lock.trylock() {
throw RuntimeError.Generic("failed to lock archive staging directory")
}
}
deinit {
try? lock.unlock()
try? FileManager.default.removeItem(at: tmpDir)
}
}