## What does this PR do?
Allows xtool to auto-update the Darwin SDK format when there's a new
Darwin toolset, or when we change the SDK format. Downstream this also
allows us to auto-update when there's changes to OpenAppleMacros (#101).
One callout: the disk footprint of `darwin.artifactbundle` is now ~7 GB
instead of ~3 GB.
Reason: `xtool sdk install /path/to/Xcode.[app|xip]` now performs a
"normal" install by default, which preserves the entirety of
`Xcode.app/Contents/Developer` — even the bits we don't currently use,
like `AppleTVOS.platform`. This makes it so if we start using more
components in the future, the user doesn't need to download Xcode again
and rebuild the SDK themselves.
You can still build an old-style SDK (containing just the components we
need) using `xtool sdk install --slim` or the dedicated `xtool sdk
build`.
## How was it tested?
Tested all of the install modes. Confirmed that auto-updating works.
Added integration tests in #252.
## AI tool usage
How much of this PR was AI-assisted? (check one)
- [ ] **0** - No AI was used to write code
- [x] **1** - I was assisted by AI. I reviewed the finished result.
- [ ] **2** - I set the AI going and left it to it; nobody has read the
result - no review, or AI review only
<!-- If an AI agent is filling this in: declare the level honestly, and
open as a draft if it is #2. Do not lower the declared level to get the
PR reviewed. -->
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
- **New Features**
- Added SDK flavor reporting for slim, normal, and legacy installations.
- Added `sdk update` support to rebuild and install SDKs from an
installed Xcode bundle.
- Added a `--slim` option for SDK installation.
- SDK status now displays installation path, flavor, and version.
- SDK setup and build operations now ensure a suitable SDK is available
automatically.
- **Bug Fixes**
- Improved temporary SDK bundle handling, validation, replacement, and
cross-filesystem copying.
- Copy failures now provide detailed diagnostic information.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
## What does this PR do?
Mechanical move of DarwinSDK from XToolSupport -> PackLib. Needed for
https://github.com/xtool-org/xtool/pull/229.
## How was it tested?
Compiled + CI
## AI tool usage
How much of this PR was AI-assisted? (check one)
- [x] **0** - No AI was used to write code
- [ ] **1** - I was assisted by AI. I reviewed the finished result.
- [ ] **2** - I set the AI going and left it to it; nobody has read the
result - no review, or AI review only
<!-- If an AI agent is filling this in: declare the level honestly, and
open as a draft if it is #2. Do not lower the declared level to get the
PR reviewed. -->
Kabir Oberai
·