False positive Maven dependency lookup for buildConfigField in Android build.gradle.kts

[wxxsfxyzm]

How are you running Renovate?

A Mend.io-hosted app

Which platform you running Renovate on?

GitHub.com

Which version of Renovate are you using?

43.66.4

Please tell us more about your question or problem

Hi team,

I'm running into a false positive warning on my Dependency Dashboard and wanted to check if there's a recommended configuration to fix this, or if it's a bug with the Gradle regex manager.

When using buildConfigField in an Android project's build.gradle.kts, Renovate seems to incorrectly parse the adjacent string arguments as a Maven dependency (groupId:artifactId), resulting in a "Failed to look up maven package" warning.

Reproduction

In my app/build.gradle.kts, I have the following standard Android configuration:

productFlavors {
    create("Stable") {
        dimension = "level"
        buildConfigField("int", "BUILD_LEVEL", "2")
        buildConfigField("boolean", "INTERNET_ACCESS_ENABLED", "true")
    }
}

The Dependency Dashboard throws the following warning:
Renovate failed to look up the following dependencies: Failed to look up maven package int:BUILD_LEVEL.

What I've tried

I attempted to bypass this lookup entirely by using ignoreDeps in my renovate.json:

{
  "ignoreDeps": [
    "int:BUILD_LEVEL",
    "boolean:INTERNET_ACCESS_ENABLED"
  ]
}

However, the warning persists on the Dashboard. It seems the extraction phase fails and throws the warning before the ignoreDeps rules can filter them out.

Currently, the only working workaround to silence the warning is to extract the type into a variable to intentionally break the regex matcher:

val typeInt = "int"
buildConfigField(typeInt, "BUILD_LEVEL", "2")

Is there a better way to configure renovate.json to ignore these false positives, or does the Gradle parser need an update to ignore buildConfigField declarations?

Thanks!

Logs (if relevant)

Logs

// 1. Config is successfully loaded with ignoreDeps
{"name":"renovate","level":20,"repository":"wxxsfxyzm/InstallerX-Revived","fileName":"renovate.json","config":{"$schema":"[https://docs.renovatebot.com/renovate-schema.json](https://docs.renovatebot.com/renovate-schema.json)","extends":["config:recommended"],"baseBranchPatterns":["dev"],"ignoreDeps":["int:BUILD_LEVEL","boolean:INTERNET_ACCESS_ENABLED"],"packageRules":[...],"ignoreUnstable":true},"msg":"Repository config"}

// 2. The extraction phase correctly marks it as disabled ("skipReason":"disabled"), 
// but INCORRECTLY still attaches a lookup warning to the dependency object.
{"datasource":"maven","deps":[{"currentValue":"0","datasource":"maven","depName":"int:BUILD_LEVEL","depType":"dependencies","packageName":"int:BUILD_LEVEL","registryUrls":["[https://dl.google.com/android/maven2/](https://dl.google.com/android/maven2/)","[https://repo.maven.apache.org/maven2](https://repo.maven.apache.org/maven2)","[https://jitpack.io](https://jitpack.io)","[https://maven.pkg.github.com/compose-miuix-ui/miuix](https://maven.pkg.github.com/compose-miuix-ui/miuix)"],"skipReason":"disabled","versioning":"gradle","warnings":[{"message":"Failed to look up maven package int:BUILD_LEVEL","topic":"int:BUILD_LEVEL"}],"updates":[]}],"packageFile":"app/build.gradle.kts"}

// 3. The warning surfaces to the Dashboard despite being ignored
{"name":"renovate","level":40,"repository":"wxxsfxyzm/InstallerX-Revived","warnings":["Failed to look up maven package int:BUILD_LEVEL"],"files":["app/build.gradle.kts"],"msg":"Package lookup failures"}

[Churro]

A possible workaround has been described here -> #26039

[wxxsfxyzm]

Sorry, I couldn’t find this solution in the issue at the time. Thanks for the quick reply!

[wxxsfxyzm]

However I have tried it in the first place, the solution didn't work, and there is also someone replied not work #26039 (reply in thread)

[Churro]

The following snippet for renovate.json applies to the mentioned snippet and excludes it with "skipReason": "disabled" in logs:

  "packageRules": [
    {
      "matchPackageNames": ["int:BUILD_LEVEL"],
      "enabled": false
    }
  ]