Xcode hanging when applying a plugin to many package targets

[berlisa]

Description

I'm trying to add a plugin as a BuildTool Plug-In in our packages.
Our project has some packages and multiple targets (> 75)
When I add the plugin to every package target and build the project - it freezes the Xcode build while building the project. It happens with Xcode and the xcodebuild command.

---

I generated a dummy buildTool plugin(without functionality) add added the dummy plugin to our targets and build the project
In our project the build is working when we use the plugin in <= 73 targets.. more targets with the plugin (> 73) freezes the build. It seems that Xcode(build) has a problem with to many plugins used in targets.

Expected behavior

Xcode build is working when using plugins in many targets. (>73)

Actual behavior

Xcode build hangs/freezes when using plugins in many targets (>73)

Steps to reproduce

1. Generate a project with many package targets (ca 100)
2. generate a dummy buildTool plugin (without functionality)
3. add the dummy plugin to all targets
4. build the project in Xcode or xcodebuild
5. the build is hanging and Xcode freezes

Swift Package Manager version/commit hash

Xcode 14.3

Swift & OS version (output of swift --version ; uname -a)

swift-driver version: 1.75.2 Apple Swift version 5.8 (swiftlang-5.8.0.124.2 clang-1403.0.22.11.100)
Target: arm64-apple-macosx13.0
Darwin IUGMPY4Y49DX62 22.4.0 Darwin Kernel Version 22.4.0: Mon Mar 6 20:59:28 PST 2023; root:xnu-8796.101.5~3/RELEASE_ARM64_T6000 arm64

[MaxDesiatov]

Is this reproducible for you when using swift build from the command line? If not, I believe this issue should be closed here since it's specific to Xcode, for which issues are tracked in Feedback Assistant not GitHub.

[neonichu]

cc @abertelrud

[berlisa]

I made a new Package with 80 package targets and each target has a dummy plugin dependency.
-> the command swift build works.
-> but Xcode(build) is freezing
-> So it seems that is a Xcode bug.. i will make a report at the Feedback Assistant.
Thank you

[iwb-gregory-gyselinck]

It seems there is no more limitation in Xcode 15.0 🎉

[joshuawright11]

Unfortunately still getting this error; hangs / beach balls for 5-10 seconds before each build on a project with ~100 packages, even if the plugin does nothing.

Xcode Version 15.0 (15A240d)

[joshuawright11]

While I know this is an Xcode issue, the feedback assistant is unfortunately a black box.

I'm curious if anyone has found a workaround.