Gradle plugin that loads org.springframework.boot into projects - spring-boot

Question

I'm writing a custom gradle plugin Foo and I want to load the org.springframework.boot plugin
into projects that apply the Foo plugin. I can load various other plugins this way, but this
particular plugin doesn't want to behave the same way.
Foo build.gradle
buildscript {
ext {
springBootVersion = "2.1.3.RELEASE"
}
}
apply plugin: "groovy"
repositories {
maven { url "http://custom.repo/blah" }
}
dependencies {
implementation gradleApi()
implementation localGroovy()
implementation("org.springframework.boot:spring-boot-gradle-plugin:${springBootVersion}")
}
Foo plugin
class BuildPlugin implements Plugin<Project> {
#Override
void apply(Project project) {
project.repositories {
maven { url "http://custom.repo/blah" }
}
project.plugins.apply("org.springframework.boot")
}
}
Project build.gradle
buildscript {
dependencies {
classpath files("/some/cool/path/foo-plugin.jar")
}
}
apply plugin: "com.whatever.foo-id"
Project build output
$ ./gradlew --stacktrace clean build
FAILURE: Build failed with an exception.
* Where:
Build file '/cool/project/location/bar/build.gradle' line: 40
* What went wrong:
A problem occurred evaluating root project 'bar'.
> Failed to apply plugin [id 'com.whatever.foo-id']
> Plugin with id 'org.springframework.boot' not found.
Is it possible to apply a plugin 1 from plugin 2 where plugin 1 is a classpath dependency?

Answer 1

This isn't possible. The classpath is what pulls in the plugins, so it is impossible for them to modify the thing before they are pulled in.