Add API for Disk Resize

[baude]

Add disk resize api for pkg/hypvctl that takes a disk path and a strongly typed new size. No error protection for invalid disk resizes (like trying to descrease the size of a disk).

Fixes: #54

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: baude

The full list of commands accepted by this bot can be found here.

The pull request process is described here

Details

Needs approval from an approver in each of these files:

• OWNERS [baude]

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment

[baude]

once #67 merges, i will write an integration test with the current code and then update to the suggested code. that will make me feel more comfy with the change

[baude]

@n1hility I think we are good to go now ... wdyt?

@cfergeau double checking this is what you need as well...

[cfergeau]

Yes, we want to replace this:

	return cmd("Hyper-V\\Resize-VHD",
		"-Path",
		quote(diskPath),
		"-SizeBytes",
		fmt.Sprintf("%d", newSize))

The new API seems to fit.
We'd also need to be able to get the disk size for a disk image (out, err := cmdOut(fmt.Sprintf("@(Get-VHD -Path %s).Size", quote(diskPath)))), I don't know if it's already possible in libhvee?

[n1hility]

LGTM

[n1hility]

Yes, we want to replace this:

	return cmd("Hyper-V\\Resize-VHD",
		"-Path",
		quote(diskPath),
		"-SizeBytes",
		fmt.Sprintf("%d", newSize))

The new API seems to fit. We'd also need to be able to get the disk size for a disk image (out, err := cmdOut(fmt.Sprintf("@(Get-VHD -Path %s).Size", quote(diskPath)))), I don't know if it's already possible in libhvee?

Not yet, although there is an API call we can get it from here:
https://learn.microsoft.com/en-us/windows/win32/hyperv_v2/getvirtualharddisksettingdata-msvm-imagemanagementservice

[baude]

ill add the api now

[n1hility]

LGTM other than the go.sum conflict

[gbraad]

Is this still used?

[baude]

No, but a the test suite gets filled out, I'm certain it will be.

[cfergeau]

/lgtm