Modified the cpus and memory options for the vmware builders to only apply them if they were specified.

builder/vmware/common/hw_config.go

@@ -36,17 +36,11 @@ func (c *HWConfig) Prepare(ctx *interpolate.Context) []error {
 		errs = append(errs, fmt.Errorf("An invalid number of cpus was specified (cpus < 0): %d", c.CpuCount))
 		c.CpuCount = 0
 	}
-	if c.CpuCount == 0 {
-		c.CpuCount = 1
-	}
 
 	if c.MemorySize < 0 {
 		errs = append(errs, fmt.Errorf("An invalid amount of memory was specified (memory < 0): %d", c.MemorySize))
 		c.MemorySize = 0
 	}
-	if c.MemorySize == 0 {
-		c.MemorySize = 512
-	}
 
 	// Peripherals
 	if !c.Sound {

builder/vmware/common/hw_config_test.go

@@ -22,7 +22,7 @@ func TestHWConfigPrepare(t *testing.T) {
 		t.Fatalf("err: %#v", errs)
 	}
 
-	if c.CpuCount < 1 {
+	if c.CpuCount < 0 {
 		t.Errorf("bad cpu count: %d", c.CpuCount)
 	}
 

builder/vmware/iso/step_create_vmx.go

@@ -160,9 +160,6 @@ func (s *stepCreateVMX) Run(_ context.Context, state multistep.StateBag) multist
 		Version:  config.Version,
 		ISOPath:  isoPath,
 
-		CpuCount:   strconv.Itoa(config.HWConfig.CpuCount),
-		MemorySize: strconv.Itoa(config.HWConfig.MemorySize),
-
 		SCSI_Present:         "FALSE",
 		SCSI_diskAdapterType: "lsilogic",
 		SATA_Present:         "FALSE",
@@ -413,8 +410,22 @@ func (s *stepCreateVMX) Run(_ context.Context, state multistep.StateBag) multist
 		s.tempDir = vmxDir
 	}
 
+	/// Now to handle options that will modify the template
+	vmxData := vmwcommon.ParseVMX(vmxContents)
+
+	// Set the number of cpus if it was specified
+	if config.HWConfig.CpuCount > 0 {
+		vmxData["numvcpus"] = strconv.Itoa(config.HWConfig.CpuCount)
+	}
+
+	// Apply the memory size that was specified
+	if config.HWConfig.MemorySize > 0 {
+		vmxData["memsize"] = strconv.Itoa(config.HWConfig.MemorySize)
+	}
+
+	/// Write the vmxData to the vmxPath
 	vmxPath := filepath.Join(vmxDir, config.VMName+".vmx")
-	if err := vmwcommon.WriteVMX(vmxPath, vmwcommon.ParseVMX(vmxContents)); err != nil {
+	if err := vmwcommon.WriteVMX(vmxPath, vmxData); err != nil {
 		err := fmt.Errorf("Error creating VMX file: %s", err)
 		state.Put("error", err)
 		ui.Error(err.Error())