java - 无法在 gradle 文件中导入除 build.gradle 之外的第三方类

Question

我想在 gradle 文件 version.gradle 中导入第三方类 org.ajoberstar.grgit.Grgit。然而，它给了我一个错误，它无法解析类 org.ajoberstar.grgit.Grgit(我在 build.gradle 中使用 apply from: "version.gradle" )。但如果我将其导入 build.gradle 中，它就可以正常工作。这是我正在做的事情:

构建.gradle:

plugins {
  id "org.ajoberstar.grgit" version "1.5.0"
}
apply from: "version.gradle"

// Version of jar file.
version = 1.0

jar
 {
  destinationDir = file(JAR_DIR)
  from {
    (configurations.runtime).collect {
      it.isDirectory() ? it : zipTree(it)
    }
  }
  manifest {
    attributes 'Main-Class': 'com.awesomeness.Main'
  }
}

jar.dependsOn versionTxt

// Artifact dependecies.
    dependencies {
      compile files("$TOOLS/lib/grgit-1.5.0.jar")
      compile files("$TOOLS/lib/groovy-all-2.4.7.jar")
      compile files("$TOOLS/lib/org.eclipse.jgit-4.2.0.201601211800-r.jar")
    }

这是 version.gradle 文件:

import org.ajoberstar.grgit.Grgit
//
import java.text.DateFormat

task versionTxt()  {
    doLast {
        Grgit grgit = Grgit.open()
        File file = new File("$buildDir/version.txt")
        file.write("")
        file.append("Version: $version")
        file.append("Branch: "+grgit.branch.current.trackingBranch.name)
        file.append("Build-Type: ")
        file.append("Build-Date: " + DateFormat.getDateInstance(DateFormat.SHORT).format(new Date((long)grgit.head().time*1000l)))
        file.append("Commit-Id: "+ grgit.head().abbreviatedId)
    }
}

我尝试了一些SO链接，例如:

• How can I import one Gradle script into another?
• Gradle dependencies not working (Cannot import)
• How do I import a class in gradle outside of build.gradle in a apply from: file

但我无法解决这个问题。有什么帮助吗？

Answer 1

您需要使用 buildscript block 使 org.ajoberstar.grgit 包类在使用它的 Gradle 脚本中可用:

版本.gradle:

buildscript {
    repositories {
        jcenter()
    }
    dependencies {
        classpath("org.ajoberstar:grgit:1.5.0")
    }
}
import org.ajoberstar.grgit.Grgit
// .. rest of your build script