[SR-6183] Use CMake for building Corelibs XCTest

[briancroom]

Previous ID	SR-6183
Radar	None
Original Reporter	@briancroom
Type	Task
Status	Resolved
Resolution	Done

Additional Detail from JIRA

Votes	0
Component/s	XCTest
Labels	Task, Linux
Assignee	None
Priority	Medium

md5: 55b6c9013e4d23dd5c8eb5cbe99605d3

Issue Description:

While the long-term goal is still to make SwiftPM the primary way to build Corelibs XCTest, in the meantime, it would be great for the project to get incremental builds instead of always rebuilding the entire library as happens currently. It seems that adopting CMake would be the most pragmatic way to achieve this, and would be in keeping with other Swift.org projects. (e.g. libdispatch which recently switched over to CMake.)

[briancroom]

CC @aciidb0mb3r, @modocache

[modocache]

Awesome, I'd be very excited to see this happen! t_martinho (JIRA User) has been doing some work in corelibs-xctest recently, maybe he'd be interested in trying this?

I think the pull requests that added a CMake build system to corelibs-libdispatch would be handy to reference here:

• build: add a cmake based build system swift-corelibs-libdispatch#196 added the initial CMakeLists.txt files

• build: attempt to add swift support to cmake swift-corelibs-libdispatch#243 added CMake that is capable of configuring how Swift libraries are built

I think a good first step would be to write CMake similar to the Swift support from swiftlang/swift-corelibs-libdispatch#243 I'm wondering whether we should be trying to share any of the Swift build logic between these two projects, but I think that for an initial pull request that should be a non-goal.

[aciidgh]

I'll give this a try.

[aciidgh]

Highly WIP PR: #206

[stmontgomery]

The PR above was closed yesterday, can this issue be closed?

[compnerd]

XCTest was ported to CMake a while ago.