Cannot build release on MacOS

[Dekker1]

I'm trying to update the Yuck version in my Homebrew tap, but it seems that I cannot actually build on MacOS anymore (the ubuntu build seems to go okay).

On MacOS the mill builder no longer seems to detect the universalBuild preset:

mill yuck.universalPackage Picked up _JAVA_OPTIONS: -Duser.home=/Users/runner/Library/Caches/Homebrew/java_cache Picked up _JAVA_OPTIONS: -Duser.home=/Users/runner/Library/Caches/Homebrew/java_cache Preparing Java 19 runtime; this may take a minute or two ... Downloading https://repo1.maven.org/maven2/com/lihaoyi/mill-contrib-buildinfo_2.13/0.10.8/mill-contrib-buildinfo_2.13-0.10.8.pom Downloaded https://repo1.maven.org/maven2/com/lihaoyi/mill-contrib-buildinfo_2.13/0.10.8/mill-contrib-buildinfo_2.13-0.10.8.pom Downloading https://repo1.maven.org/maven2/com/lihaoyi/mill-contrib-buildinfo_2.13/0.10.8/mill-contrib-buildinfo_2.13-0.10.8.jar Downloading https://repo1.maven.org/maven2/com/lihaoyi/mill-contrib-buildinfo_2.13/0.10.8/mill-contrib-buildinfo_2.13-0.10.8-sources.jar Downloaded https://repo1.maven.org/maven2/com/lihaoyi/mill-contrib-buildinfo_2.13/0.10.8/mill-contrib-buildinfo_2.13-0.10.8.jar Downloaded https://repo1.maven.org/maven2/com/lihaoyi/mill-contrib-buildinfo_2.13/0.10.8/mill-contrib-buildinfo_2.13-0.10.8-sources.jar Compiling /private/tmp/yuck-20221102-18458-1cvaay2/yuck-20221101/build.sc Cannot resolve yuck.universalPackage. Try `mill resolve yuck._` to see what's available.

(Dekker1/homebrew-minizinc#29)

Running the resolve locally gives me:

./mill resolve yuck._
[1/1] resolve 
yuck.dev
yuck.prod

I'm not really familiar with the scala tooling, so maybe I'm just missing a dependency or something like that (currently it is just mill and java). Any pointers would be much appreciated.

[informarte]

Try make zip or, equivalently, ./mill yuck.dev.universalPackage.

[Dekker1]

Thank you, that solves the problem. However, when building from the zipped source, it seems that the build fails because yuck.dev.retrieveGitBranch only works in a git repository. However, when doing git-checkout Homebrew always uses submodules, and the minizinc-benchmarks repository included does not seem to exists (probably a private clone).

Is there an option to build from a static directory instead of git? (preferred)
Or, can you publish the minizinc-benchmarks clone so checkout would succeed?

P.S. why do we use yuck.dev and not yuck.prod? What is the difference?

[informarte]

I had forgotten to push the latest changes to my minizinc-benchmarks clone; now cloning the Yuck sources with --recurse-submodules should work.

Currently, building from the zipped sources (provided automatically by Github) is not possible.

Both Scala 2 and Scala 3 feature inlining. In Scala 2 it is an optional (and expensive) optimization, so I introduced dev and prod builds. In Scala 3, inlining works differently and cannot be disabled, so there is no difference between the build types any more.

[Dekker1]

The build now seems to start. However, it seems that an error in formatting the deprecation warning is stopping the build for succeeding: https://github.com/Dekker1/homebrew-minizinc/actions/runs/3382286052/jobs/5633182090#step:8:521
Have you seen this before?

[informarte]

Analysis:

• You are using Java 19.
• Java 19 deprecates Thread.getId in favor of Thread.threadId which is only available from Java 19.
• sbt (used under the hood by mill) throws when trying to report the warning generated by dotty (the Scala 3 compiler).
• The sbt issue reproduces on Ubuntu 20.04 with Oracle's JDK 19, however it does not break the build.
• So it seems that something in the Homebrew build scans for error messages and causes the failure.
• Upgrading to the latest mill 0.10.8 does not help.

The issue can be fixed or worked around in four ways:

• by fixing the Homebrew build
• by compiling with an earlier Java version
• by installing the Yuck ZIP package from GitHub (as part of the Homebrew build) instead of building from sources
• by changing the Yuck code

If you cannot fix the Homebrew build and really want or need to build yourself and to build with Java 19, then let's discuss the technical details via email.

[informarte]

I reported the build issue in com-lihaoyi/mill#2105.

[informarte]

It turned out that the mill developers have already worked around the logging issue (by providing their own logger). This fix will be delivered with mill 0.10.9.

[Dekker1]

That is good news. I hope they come with a release soon :)

[informarte]

I just pushed the branch unblock-homebrew-build, so no need to wait for the next official mill release.

[Dekker1]

I seem to be running into another odd issue again: https://github.com/Dekker1/homebrew-minizinc/actions/runs/3424097391/jobs/5703399310#step:8:598
Do you have any idea what would give such an error?

I might for now just use the released built binaries, but would love to solve these issues and build it in the formula again in the future

[informarte]

TypeError: no implicit conversion of nil into String

is not from the Yuck build, it's a Ruby error message.

[Dekker1]

Ah, I probably should have guessed that. I'll investigate further when I find some time.

Thanks again for the all the help!

[Dekker1]

All solved. Once more, thank you for the support!