重构gradle中的Maven块 [英] Refactor maven block in gradle

问题描述

我正在处理一个android项目，并且有许多使用相同凭据的自定义存储库:

I'm working on an android project, and have a number of custom repositories using the same credentials:

repositories {
  maven {
    url "<url1>"
    credentials {
      username = "<username>"
      password = "<password>"
    }
  }

  maven {
    url "<url2>"
    credentials {
      username = "<username>"
      password = "<password>"
    }
  }

}

是否可以定义方法(块?)，这样我可以一次定义用户名和密码，而不必每次都重复?我希望能够做到:

Is there a way to define a method (block?) so that I can define the username and password once and not have to repeat it every time? I'd like to be able to do:

repositories {
  customMaven { url "<url1>"}
  customMaven { url "<url2>"}
}

很抱歉，如果我在这里使用的术语不正确-gradle语法对我来说还是个谜.

Apologies if I'm using terms incorrectly here - gradle syntax is somewhat of a mystery to me.

推荐答案

@ToYonos提供的第一个答案会很好，但是如果您正在寻找基于配置块的解决方案，则可以使用 RepositoryHandler 中的方法MavenArtifactRepository maven(Action<? super MavenArtifactRepository> action) a>类(

First answer provided by @ToYonos will work fine, but if you are looking for a solution based on a configuration block, you can use the method MavenArtifactRepository maven(Action<? super MavenArtifactRepository> action) from RepositoryHandler class (see here), as follows:

// a Closure that builds an Action for configuring a MavenArtifactRepository instance
def customMavenRepo = { url ->
    return new Action<MavenArtifactRepository>() {
        void execute(MavenArtifactRepository repo) {
            repo.setUrl(url)
            repo.credentials(new Action<PasswordCredentials>() {
                void execute(PasswordCredentials credentials) {
                    credentials.setUsername("<username>")
                    credentials.setPassword("<password>")
                }
            });
        }
    };
}

// usage
repositories {
    jcenter()
    maven customMavenRepo("http://company.com/repo1")
    maven customMavenRepo("http://company.com/repo2")
    maven customMavenRepo("http://company.com/repo3")
}

编辑，来自以下注释:解决方案将关闭，如下所示.我认为这里需要使用curry方法(请参见强制关闭)，但也许还有其他方法可以简化...

EDIT from comments below: solution will Closure would look as follow. I think the use of curry method (see Currying closure) is needed here, but maybe there are other ways to simplify...

// one closure with URL as parameter
ext.myCustomMavenClosure = { pUrl ->
    url pUrl
    credentials {
        username = "<username>"
        password = "<password>"
    }
}
// helper function to return a "curried" closure
Closure myCustomMaven (url){
    return myCustomMavenClosure.curry(url)
}

repositories {
    // use closure directly
    maven myCustomMavenClosure.curry ("http://mycompany.com/repo1")
    // or use helper method
    maven myCustomMaven("http://mycompany.com/repo2")
}    

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