is there an API I can use in kotlin to check for existence of a specific dependency/artifact in a mo...

# gradle

[MR3Y]

is there an API I can use in kotlin to check for existence of a specific dependency/artifact in a module? I'm looking for something like pluginManager.withPlugin() / hasPlugin() but for dependencies.

[Vampire]

Mind elaborating on your use-case?

[MR3Y]

I'm making a convention plugin and based on the existence of some dependencies, I should act differently otherwise I would get some warning messages like these: androidx.compose.material3.ExperimentalMaterial3Api is unresolved. Please make sure it's present in the module dependencies
it is not a major issue as a I said it is just a warning but I wanted to ask if there is something I can use for this.

[MR3Y]

val configurationName = "implementation"
val dependencyGroupId = "com.example"
val dependencyArtifactId = "my-library"

val matchingConfiguration = project.configurations.findByName(configurationName)

if (matchingConfiguration != null) {
  val foundDependency = matchingConfiguration.artifacts.find {
    it.group == dependencyGroupId && it.name == dependencyArtifactId
  }
  if (foundDependency != null) {
    println("Dependency '${dependencyGroupId}:${dependencyArtifactId}' exists in configuration '${configurationName}'")
  } else {
    println("Dependency '${dependencyGroupId}:${dependencyArtifactId}' not found in configuration '${configurationName}'")
  }
} else {
  println("Configuration '${configurationName}' not found")
}

Is something like this is fine? haven't tested it though

[Vampire]

No, not really.

[Vampire]

Do you only care about dependencies declared explicitly or also if it comes in transitively?

[MR3Y]

dependencies declared explicitly

[Vampire]

Then Configuration#withDependencies is your friend

[Vampire]

It is a hook that is executed right before resolution to add last-minute dependencies for example based on other declared dependencies

[Vampire]

But not on implementation but on resolvable configurations, for example runtimeClasspath or compileClasspath

[MR3Y]

Ah, is there anything equivalent for non-resolvable configurations (e.g implementation) because I'm interested in those? or there can't be because I'm misunderstanding something?

[Vampire]

Wait, I'm talking non-sense, you cannot declare on the resolvable configurations.

[Vampire]

So yes, do it on implementation

[MR3Y]

Thanks for your help I will try it.