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tart set: make --disk-size change idempotent (#698)

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...when the size is not changed.
This commit is contained in:
Nikolay Edigaryev
2024-01-08 14:34:13 +00:00
committed by GitHub
parent fbc481250d
commit 96f6f94fa7
1 changed files with 3 additions and 2 deletions
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Sources/tart/VMDirectory.swift
+3 -2
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@@ -138,13 +138,14 @@ struct VMDirectory: Prunable {
let diskFileHandle = try FileHandle.init(forWritingTo: diskURL)
let currentDiskFileLength = try diskFileHandle.seekToEnd()
let desiredDiskFileLength = UInt64(sizeGB) * 1000 * 1000 * 1000
if desiredDiskFileLength <= currentDiskFileLength {
if desiredDiskFileLength < currentDiskFileLength {
let currentLengthHuman = ByteCountFormatter().string(fromByteCount: Int64(currentDiskFileLength))
let desiredLengthHuman = ByteCountFormatter().string(fromByteCount: Int64(desiredDiskFileLength))
throw RuntimeError.InvalidDiskSize("new disk size of \(desiredLengthHuman) should be larger " +
"than the current disk size of \(currentLengthHuman)")
} else if desiredDiskFileLength > currentDiskFileLength {
try diskFileHandle.truncate(atOffset: desiredDiskFileLength)
}
try diskFileHandle.truncate(atOffset: desiredDiskFileLength)
try diskFileHandle.close()
}