From 7a31443eea6e9838e7132a7c962ca8e2ae477fd5 Mon Sep 17 00:00:00 2001
From: Nikolay Edigaryev <edigaryev@gmail.com>
Date: Wed, 3 Jan 2024 17:01:07 +0400
Subject: [PATCH] tart create --linux: allow scaling VM down to 1 CPU and 256
 MiB

---
 Sources/tart/VM.swift       |  2 +-
 Sources/tart/VMConfig.swift | 18 ++++++++++++++++--
 2 files changed, 17 insertions(+), 3 deletions(-)

diff --git a/Sources/tart/VM.swift b/Sources/tart/VM.swift
index 149bb0c..30b95c0 100644
--- a/Sources/tart/VM.swift
+++ b/Sources/tart/VM.swift
@@ -223,7 +223,7 @@ class VM: NSObject, VZVirtualMachineDelegate, ObservableObject {
     try vmDir.resizeDisk(diskSizeGB)
 
     // Create config
-    let config = VMConfig(platform: Linux(), cpuCountMin: 4, memorySizeMin: 4096 * 1024 * 1024)
+    let config = VMConfig(platform: Linux(), cpuCountMin: 1, cpuCount: 4, memorySizeMin: 256 * 1024 * 1024, memorySize: 4096 * 1024 * 1024)
     try config.save(toURL: vmDir.configURL)
 
     return try VM(vmDir: vmDir)
diff --git a/Sources/tart/VMConfig.swift b/Sources/tart/VMConfig.swift
index 0ff2480..86a069f 100644
--- a/Sources/tart/VMConfig.swift
+++ b/Sources/tart/VMConfig.swift
@@ -58,15 +58,29 @@ struct VMConfig: Codable {
     cpuCountMin: Int,
     memorySizeMin: UInt64,
     macAddress: VZMACAddress = VZMACAddress.randomLocallyAdministered()
+  ) {
+    self.init(platform: platform,
+              cpuCountMin: cpuCountMin, cpuCount: cpuCountMin,
+              memorySizeMin: memorySizeMin, memorySize: memorySizeMin,
+              macAddress: macAddress)
+  }
+
+  init(
+    platform: Platform,
+    cpuCountMin: Int,
+    cpuCount: Int,
+    memorySizeMin: UInt64,
+    memorySize: UInt64,
+    macAddress: VZMACAddress = VZMACAddress.randomLocallyAdministered()
   ) {
     self.os = platform.os()
     self.arch = CurrentArchitecture()
     self.platform = platform
     self.macAddress = macAddress
     self.cpuCountMin = cpuCountMin
+    self.cpuCount = cpuCount
     self.memorySizeMin = memorySizeMin
-    cpuCount = cpuCountMin
-    memorySize = memorySizeMin
+    self.memorySize = memorySize
   }
 
   init(fromJSON: Data) throws {