Gradle插件可以修改多模块项目中的子项目列表吗？

Question

I've hacked together combination of build.gradle and settings.gradle below for creating an ad-hoc multi-module project out of several single-module projects (eg, an application and all of its dependencies, or a shared library and everything that uses that library).

settings.gradle :

// find all subprojects and include them
rootDir.eachFileRecurse { 
  if (it.name == "build.gradle") { 
    def projDir = it.parentFile
    if (projDir != rootDir) { 
      include projDir.name
      project(":${projDir.name}").projectDir = projDir
    }
  }
}

build.gradle: :

// Make sure we've parsed subproject dependencies
evaluationDependsOnChildren()

// Map of all projects by artifact group and name
def declarationToProject = subprojects.collectEntries { p -> [toDeclaration(p), p] }

// Replace artifact dependencies with subproject dependencies, if possible
subprojects.each { p ->
  def changes = [] // defer so we don't get ConcurrentModificationExceptions
  p.configurations.each { c ->
    c.dependencies.each { d ->
      def sub = declarationToProject[[group:d.group, name:d.name]]
      if (sub != null) {
        changes.add({
            c.dependencies.remove(d)
            p.dependencies.add(c.name, sub)
        })
      }
    }
  }
  for (change in changes) {
    change()
  }
}

This works, but it's hard to share -- if somebody else wants to do something similar they have to copy my *.gradle files or cut and paste.

What I'd like to do is take this functionality and encapsulate it in a plugin. The build.gradle part looks easy enough to do in the plugin apply() method, but it seems like the list of subprojects is already set in stone before the plugin gets a chance at it. Is there any way to get in earlier in the build process, eg by applying to something other than Project ? Or should I resign myself to giving my plugin a task for overwriting settings.gradle ?

---

Solution: Per Peter Niederweiser's answer , I moved the code above into two plugins, one to be called from settings.gradle and the other to be called from build.gradle . In settings.gradle:

buildscript {
    repositories { /* etc... */ }
    dependencies { classpath 'my-group:my-plugin-project:1.0-SNAPSHOT' }
}

apply plugin: 'find-subprojects'

And in build.gradle:

buildscript {
    repositories { /* etc... */ }
    dependencies { classpath 'my-group:my-plugin-project:1.0-SNAPSHOT' }
}

evaluationDependsOnChildren()
apply plugin: 'local-dependencies'

Note that calling the plugin from settings.gradle doesn't work in Gradle 1.11 or 1.12 but does work in Gradle 2.0.

Answer 1

您需要在settings.gradle应用一个插件，我相信最新版本支持该插件。