Gradle def vs ext [英] Gradle def vs ext

问题描述

使用 ext.varname 和 def varname 有什么区别。例如。下面的代码看起来是一样的：

 任务copyLicenses {
 def outDir = project.buildDir.absolutePath +' / reports / license /'
 
 doLast {
 copy {
 from'licenses'
 to outDir 
 include'*'
} 
  

似乎与

<$ p完全相同$ p> 任务copyLicenses {
ext.outDir = project.buildDir.absolutePath +'/ reports / license /'

doLast {
copy {
from'licenses'
into outDir
include'*'
}


解决方案

关键字 def 来自Groovy，意味着该变量具有 使用 使用 code> ext.outDir 表示您添加道具erty outDir 至 ExtraPropertiesExtension ，将其视为像项目具有名称 ext 的属性映射，然后将您的属性放在此映射中以供以后访问。

What is the difference between using ext.varname and def varname. E.g. the following code seems to work the same:

task copyLicenses {
    def outDir = project.buildDir.absolutePath + '/reports/license/'

    doLast {
        copy {
            from 'licenses'
            into outDir
            include '*'
        }

seems to work exactly the same as

task copyLicenses {
    ext.outDir = project.buildDir.absolutePath + '/reports/license/'

    doLast {
        copy {
            from 'licenses'
            into outDir
            include '*'
        }

解决方案

Keyword def comes from Groovy and means that variable has local scope.

Using ext.outDir means that you add property outDir to ExtraPropertiesExtension, think of it like project has a map of properties with name ext, and you put your property in this map for later access.

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