Building PackageManager fails

Development Package Manager
1

Whenever I try building SwiftPM as part of a build of Swift on Linux it fails with this error:

/swift_source/swiftpm/TSC/Sources/TSCTestSupport/AssertMatch.swift:11:8: error: no such module 'XCTest'

I did specify --xctest=1 in my build-script arguments.

Any help appreciated!

2

Could you provide your full build-script invocation?

3

That particular run was with this command below. I also tried it with --xctest=1, without --xctest, without --skip-test-swiftpm, etc.

Right now I'm doing a run with just --swiftpm=1 --libicu=1 -R to see if maybe one of the other commands was responsible for SPM needing to build TSC. But it seems like a bug to me that if --xctest=1 or --xctest are specified then, it still can't find Xctest.

utils/build-script \
       --libicu=1 \
       --xctest \
       --libcxx \
       --llbuild \
       --lldb \
       --release-debuginfo \
       --foundation=1 \
       --libdispatch=1 \
       --swiftpm=1 \
       --build-swift-static-stdlib \
       --install-destdir=/ \
       --install-swift \
       --install-swiftpm \
       --install-lldb \
       --install-foundation \
       --install-libdispatch \
       --install-libicu \
       --install-libcxx \
       --install-llbuild \
       --skip-build-android \
       --skip-build-benchmarks \
       --skip-build-cygwin \
       --skip-build-freebsd \
       --skip-build-haiku \
       --skip-build-ios-device \
       --skip-build-ios-simulator \
       --skip-build-osx \
       --skip-build-tvos-device \
       --skip-build-tvos-simulator \
       --skip-build-watchos-device \
       --skip-build-watchos-simulator \
       --skip-test-android \
       --skip-test-android-host \
       --skip-test-cygwin \
       --skip-test-foundation=1 \
       --skip-test-freebsd \
       --skip-test-haiku \
       --skip-test-ios-32bit-simulator \
       --skip-test-ios-host \
       --skip-test-ios-simulator \
       --skip-test-linux \
       --skip-test-osx \
       --skip-test-swiftpm \
       --skip-test-tvos-host \
       --skip-test-tvos-simulator \
       --skip-test-watchos-host \
       --skip-test-watchos-simulator \
       --skip-test-benchmarks \
       --skip-test-sourcekit \
       --reconfigure \
       -j8

PS—I've tried building with the buildbot_linux but it always fails because I haven't specified an installable package path. But I'm not trying to make an installable package so I gave up on that.

4

You probably need --install-xctest. You might want to try the --infer option that @Michael_Gottesman added: [build-script] Automatic inferences of dependencies using new option: "--infer"

Alternatively, you could start with a preset and edit it to suit your needs. For example,

$ build-script --preset=buildbot_linux --expand-invocation install_destdir=/ installable_package=/fake2

will show what the preset expands to. If you don't want to build an installable package you can remove --installable-package /fake2 before building.

1 Like
5

I'm building Swift 5.2.4... is there a way to use --infer with 5.2.4 or would I have to cherry-pick build-script from master branch?

Thanks for the tips, will try these.

6

Ah, probably not.

7

You're probably best off using the preset and have it create an installable package, even if you don't use it (or you could just modify utils/build-presets.ini to not create an installable package for that preset, as Ben said).

If you really want to customize your build, your long command above can be minimized down to:

utils/build-script \
       --release-debuginfo \
       --libicu \
       --xctest \
       --libcxx \
       --llbuild \
       --lldb \
       --swiftpm \
       --build-swift-static-stdlib \
       --install-destdir=/ \
       --install-swift \
       --install-swiftpm \
       --install-lldb \
       --install-xctest \
       --install-foundation \
       --install-libdispatch \
       --install-libicu \
       --install-libcxx \
       --install-llbuild \    
       --reconfigure \
       -j8

Note that I added --install-xctest as Ben mentioned, without which you won't be able to build SwiftPM. All the --skip-build-* and --skip-test-* flags shouldn't be needed as those aren't built or tested by default. Foundation and libdispatch are implicitly built if XCTest is built.

As I mentioned in your other thread, this install will likely overwrite any libicu, lldb, clang, etc. packages you already have installed in /usr, so you may not want to override destdir if that's the case.