Source for diskdump

[nanoscopic]

Could you include the source code for diskdump please?

[corpnewt]

Are you looking to learn how it performs some specific operation? The code is pretty rough around the edges, and the only reason I wrote it is because diskutil returns different info depending on the macOS version (and sometimes stalls for long periods when waiting for APFS volumes on older OS versions).

-CorpNewt

[nanoscopic]

Essentially I'm considering writing a better replacement for mountefi overall and I wanted to understand if there is anything useful that it is doing that I should take into consideration.

I already spent a bunch of time learning how to create a better "diskdump" fwiw, so I don't think I have any actual need to see the source for it any more, but I'd still like to see the side for educational purposes.

Other than source code it would be useful to just describe what exactly diskdump is attempting to accomplish from your point of view.

To me the need is the following:

1. Concisely provide just the information needed
2. Provide a list of mounted disk devices and their partitions
3. Identify the boot volume
4. Provide a clean text description of the partition type ( which you are doing currently in Python )
5. Provide where mounted partitions are mounted if they are.
6. Provide extra info about the devices such as whether it's a mounted dmg or a USB drive
7. For mounted dmg provide their path

All I missing something? I realize diskdump isn't doing all those things. It's the list of what I'm making a thing do as I want something that does all that.

[nanoscopic]

In regard to diskutil being slow, did you identify which situations it is slow in?

I have an external spinning disk connected to my system that is not in use most of the time and spins down.

When I run an xcode build my build is delayed as xcode spins up the drive for some unknown reason before being willing to build.

I imagine that something similar could be occurring with diskutil if some portion of the information it is showing needs to be read off and drives.