Quarkus Deploy Snapshots pipeline doesn't deploy Gradle plugin

[rsvoboda]

Describe the bug

Quarkus Deploy Snapshots pipeline doesn't deploy Gradle plugin

There is Gradle plugin parent available - https://central.sonatype.com/repository/maven-snapshots/io/quarkus/io.quarkus.gradle.plugin.parent/maven-metadata.xml
But Gradle plugin is not available - https://central.sonatype.com/repository/maven-snapshots/io/quarkus/io.quarkus.gradle.plugin/maven-metadata.xml

Build log of the pipeline (https://github.com/quarkusio/quarkus/actions/workflows/deploy-snapshots.yml) shows that plugin is built but skipped for deploy:

2025-08-22T00:37:14.3835592Z [INFO] Building Quarkus - Gradle Plugin 999-SNAPSHOT                  [978/990]
...
2025-08-22T00:37:40.9723157Z [INFO] --- install:3.1.4:install (default-install) @ io.quarkus.gradle.plugin ---
2025-08-22T00:37:40.9731139Z [INFO] Installing /home/runner/work/quarkus/quarkus/devtools/gradle/gradle-application-plugin/pom.xml to /home/runner/.m2/repository/io/quarkus/io.quarkus.gradle.plugin/999-SNAPSHOT/io.quarkus.gradle.plugin-999-SNAPSHOT.pom
....
2025-08-22T00:37:40.9877195Z [INFO] --- deploy:3.1.4:deploy (default-deploy) @ io.quarkus.gradle.plugin ---
2025-08-22T00:37:40.9882165Z [INFO] Skipping artifact deployment

We noticed this due to failures in CLI tests for Gradle when running against SNAPSHOTS repo and not against local build of Quarkus main.

Can be Quarkus Gradle plugin part of the snapshots deploy?

Expected behavior

Quarkus Gradle plugin available in https://central.sonatype.com/repository/maven-snapshots/

Actual behavior

Quarkus Gradle plugin is not available in https://central.sonatype.com/repository/maven-snapshots/

How to Reproduce?

• get https://code.quarkus.io/?b=GRADLE
• adjust version to 999-SNAPSHOT as mentioned in https://github.com/quarkusio/quarkus/blob/main/CONTRIBUTING.md#with-gradle
• add following entry into repositories definition in build.gradle and settings.gradle

    maven {
        url 'https://central.sonatype.com/repository/maven-snapshots/'
    }

Output of uname -a or ver

macOS

Output of java -version

Java 21

Quarkus version or git rev

Quarkus main

Build tool (ie. output of mvnw --version or gradlew --version)

Gradlew in code.quarkus app

Additional information

No response

[quarkus-bot]

/cc @glefloch, @quarkusio/devtools

[rsvoboda]

@gsmet I found https://github.com/quarkusio/quarkus/blob/main/devtools/gradle/gradle-application-plugin/pom.xml#L20 to skip the deploy

It seems the original commit is 49d08de (Publish the Gradle model (but not the Gradle plugins))
Do you recall why the plugin is not published?

Skip of the deploy is also on https://github.com/quarkusio/quarkus/blob/main/devtools/gradle/gradle-extension-plugin/pom.xml#L21

[gsmet]

The plugins are built and deployed by Gradle to the Gradle portal.

[rsvoboda]

The plugins are built and deployed by Gradle to the Gradle portal.

I presume that's for released versions because I didn't find anything about 999-SNAPSHOT on https://plugins.gradle.org/plugin/io.quarkus

I could add -Dmaven.deploy.skip=false to https://github.com/quarkusio/quarkus/blob/main/.github/workflows/deploy-snapshots.yml#L55 command so the release build behaves the same, but snapshot have gradle plugins deployed to sonatype. Would you be OK with that @gsmet ?

[gsmet]

I presume that's for released versions because I didn't find anything about 999-SNAPSHOT

Yes. What I meant is that it's Gradle assembling the plugin as it pleases and it's not part of the Maven reactor. Deploying wouldn't be anything useful as the plugin is not attached as an artifact.

If you want to deploy, you would first need to attach the plugin as an artifact.

[gsmet]

https://www.mojohaus.org/build-helper-maven-plugin/attach-artifact-mojo.html might be of help.

[rsvoboda]

I'm not sure why I would need to do anything special with attach-artifact-mojo

The build log has 2025-08-22T00:37:40.9738839Z [INFO] Installing /home/runner/work/quarkus/quarkus/devtools/gradle/gradle-application-plugin/build/libs/gradle-application-plugin-999-SNAPSHOT.jar to /home/runner/.m2/repository/io/quarkus/io.quarkus.gradle.plugin/999-SNAPSHOT/io.quarkus.gradle.plugin-999-SNAPSHOT.jar

And I only need that artifact to be deployed to make the app mentioned in reproducer working.

I did

mv ~/.m2/repository ~/.m2/repository.bak
./gradlew quarkusDev
...
Plugin [id: 'io.quarkus', version: '999-SNAPSHOT'] was not found in any of the following sources:
...

./gradlew quarkusDev works fine after coping io.quarkus.gradle.plugin bits as shown below:

mkdir -p /Users/rsvoboda/.m2/repository/io/quarkus/io.quarkus.gradle.plugin/999-SNAPSHOT
cp /Users/rsvoboda/.m2/repository.bak/io/quarkus/io.quarkus.gradle.plugin/999-SNAPSHOT/* /Users/rsvoboda/.m2/repository/io/quarkus/io.quarkus.gradle.plugin/999-SNAPSHOT

So that's why I think just the -Dmaven.deploy.skip=false could work ...

[gsmet]

You would need to check that the jar built by Maven is identical to the one built by Gradle (same content). I have no idea if Gradle adds some metadata when building the plugin for instance.

[gsmet]

Also you can't just use -Dmaven.deploy.skip=false as it will also deploy all the ITs.

Use a profile and set skip to true in these specific artifacts when profile is there.

[rsvoboda]

I compared content of 3.25.4 based plugin with 999-SNAPSHOT one and they have the same files in the archive, content of META-INF/gradle-plugins/io.quarkus.properties is also same

Used files:

• /Users/rsvoboda/.gradle/caches/modules-2/files-2.1/io.quarkus/gradle-application-plugin/3.25.4/e0f22533527f45245ab44cd8659642a433b3de31/gradle-application-plugin-3.25.4.jar
• /Users/rsvoboda/.m2/repository/io/quarkus/io.quarkus.gradle.plugin/999-SNAPSHOT/io.quarkus.gradle.plugin-999-SNAPSHOT.jar

Comparison:

find gradle-application-plugin-3.25.4 | sort | cut -d'/' -f2- > gradle-application-plugin-3.25.4.txt
find io.quarkus.gradle.plugin-999-SNAPSHOT | sort | cut -d'/' -f2- > io.quarkus.gradle.plugin-999-SNAPSHOT.txt

code --diff gradle-application-plugin-3.25.4.txt io.quarkus.gradle.plugin-999-SNAPSHOT.txt