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Fix first pull

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f-trycua
2025-04-21 16:20:10 -07:00
parent 62f90afb2c
commit c321c8affc
1 changed files with 12 additions and 1 deletions
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13
libs/lume/src/ContainerRegistry/ImageContainerRegistry.swift
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@@ -1526,11 +1526,13 @@ class ImageContainerRegistry: @unchecked Sendable {
try outputHandle.truncate(atOffset: diskSize)
// 6. Write test patterns at beginning and end
Logger.info("Writing test patterns to verify writability...")
let testPattern = "LUME_TEST_PATTERN".data(using: .utf8)!
try outputHandle.seek(toOffset: 0)
try outputHandle.write(contentsOf: testPattern)
try outputHandle.seek(toOffset: diskSize - UInt64(testPattern.count))
try outputHandle.write(contentsOf: testPattern)
try outputHandle.synchronize()
// 7. Decompress the original data at offset 0
Logger.info("Decompressing original disk image with same mechanism as cache pull...")
@@ -1542,8 +1544,10 @@ class ImageContainerRegistry: @unchecked Sendable {
Logger.info("Decompressed \(ByteCountFormatter.string(fromByteCount: Int64(bytesWritten), countStyle: .file)) of disk image data")
// 8. Ensure all data is written to disk
// 8. Ensure all data is written to disk with an explicit sync
try outputHandle.synchronize()
// Very important: close the handle before optimization
try outputHandle.close()
// 9. Optimize sparse file with cp -c (exactly matching cache pull process)
@@ -1568,6 +1572,13 @@ class ImageContainerRegistry: @unchecked Sendable {
"Sparse optimization results: Before: \(ByteCountFormatter.string(fromByteCount: Int64(originalUsage), countStyle: .file)) actual usage, After: \(ByteCountFormatter.string(fromByteCount: Int64(optimizedUsage), countStyle: .file)) actual usage (Apparent size: \(ByteCountFormatter.string(fromByteCount: Int64(optimizedSize), countStyle: .file)))"
)
// Before replacing the file, make sure to synchronize the filesystem
let syncBeforeReplace = Process()
syncBeforeReplace.executableURL = URL(fileURLWithPath: "/bin/sync")
try syncBeforeReplace.run()
syncBeforeReplace.waitUntilExit()
// Now replace the original with the optimized version
try FileManager.default.removeItem(at: diskImgPath)
try FileManager.default.moveItem(at: URL(fileURLWithPath: optimizedPath), to: diskImgPath)
Logger.info("Replaced with optimized sparse version")