为什么不在导入的Gradle脚本中导入工作？

Question

Gradle (OSX上的2.12版本)无法在下面的示例中找到Grgit的定义，除非git.gradle的内容被复制到build.gradle中。如何在不丢失git.gradle的情况下修复此错误？

build.gradle

buildscript {
  repositories {
    jcenter()
  }
  dependencies {
    classpath 'org.ajoberstar:gradle-git:1.4.2'
  }
}

apply from: 'git.gradle'

git.gradle

import org.ajoberstar.grgit.* 

task clone << {
  Grgit.clone(dir: file('build/repo'), uri: 'git@github.com:user/repo.git')
}

这是输出：

$ gradle clone
...
Execution failed for task ':clone'.
> Could not find property 'Grgit' on task ':clone'.

Answer 1

找到解决办法:将Grgit添加为ExtraPropertiesExtension project.ext，将其公开给导入的Gradle脚本。(不确定是否有更清洁的方法.)

build.gradle

buildscript {
  repositories {
    jcenter()
  }
  dependencies {
    classpath 'org.ajoberstar:gradle-git:1.4.2'
  }
}

// expose Grgit to `git.gradle`
project.ext.Grgit = org.ajoberstar.grgit.Grgit

apply from: 'git.gradle'

git.gradle

// no import needed here

task clone << {
  Grgit.clone(dir: file('build/repo'), uri: 'git@github.com:user/repo.git')
}

撇开：通过应用gradle-git，插件自动project.ext.grgit。如果您只需要使用当前项目的Git，就不需要公开来自build.gradle的build.gradle，git.gradle可能如下所示：

apply plugin: 'org.ajoberstar.grgit'

task commitReadme << {
  grgit.add(patterns: ['README.md'])
  grgit.commit(message: "Update README for ${rootProject.version}")
}