Failure in crossenv

[blawrence-ont]

Describe the bug

freakboy3742/crossenv@6d88cb8 appears to have broken host arch lookup. The issue comes from the assignment of self.host_machine and self.host_is_simulator since, as noted at the top of that function, host_platform can be of the form ios-12.0-iphonesimulator-arm64 and hence host_info[3] is arm64 which isn't a key in the map.

crossenv isn't pinned to a specific commit in https://github.com/beeware/mobile-forge/blob/main/pyproject.toml#L34 so all builds are affected (pinning to crossenv @ git+https://github.com/freakboy3742/crossenv@b8a3a72d59b2cf484cc6b31bcd122d7a975ef314 "fixes" the issue locally).

Also note that _split_apple_os_version() is missing raise ValueError(...) in the else: case of that commit.

Steps to reproduce

1. Try to build forge iphoneos:arm64 libpng
2. Observe error message ERROR: 'arm64'

Expected behavior

The build should complete without error

Screenshots

No response

Environment

• Operating System: macOS 14.6.1 (23G93)
• Python version: 3.12

Logs

% forge iphoneos:arm64 libpng
================================================================================
Building libpng 1.6.34 for ios_12_0_iphoneos_arm64
================================================================================

[venv3.12-ios_12_0_iphoneos_arm64] Download package sources
Downloading https://download.sourceforge.net/libpng/libpng-1.6.34.tar.gz.... done.

[venv3.12-ios_12_0_iphoneos_arm64] Unpack sources
Unpacking downloads/libpng-1.6.34.tar.gz...

[venv3.12-ios_12_0_iphoneos_arm64] Apply patches
No patches to apply.

[venv3.12-ios_12_0_iphoneos_arm64] Create clean build environment
Creating venv3.12-ios_12_0_iphoneos_arm64...

ERROR: 'arm64'
********************************************************************************
Failed build: libpng 1.6.34 for iphoneos 12.0 on arm64
********************************************************************************

Additional context

No response

[freakboy3742]

Thanks for the report. Unfortunately, you've found this project in a transition period. We've recently landed a bunch of changes to the iOS support packages reflecting the official PEP 730 changes adding iOS support to CPython itself; but those changes include some subtle incompatibilities with the Mobile Forge repository.

I'm in currently in the middle of restoring Mobile Forge to working status; #55 is my current work in progress toward that goal. I've pushed some updates to my fork of crossenv (late yesterday); I think those changes will address the host_is_simulator issues you're seeing.

As of right now, Mobile Forge is able to build Python 3.12 binaries; I'm hoping to get 3.9-3.11 working in the next day or so (possibly sooner); then look at updating the recipes to add Python 3.13 support.