使用gradle构建时读取maven settings.xml？

Question

我有一个maven settings.xml位于:

 /home/u123/.m2/settings.xml

我指定一个远程maven存储库:

<?xml version="1.0" encoding="UTF-8"?>
<settings>
  <profiles>
    <profile>
      <id>default</id>
      <repositories>
          <repository>
              <id>my.repo</id>
               <url>http://myrepo/ </url>
          </repository>
      </repositories>
    </profile>
  </profiles>
  <activeProfiles>
    <activeProfile>default</activeProfile>
  </activeProfiles>
</settings>

在这个repo中,我已经部署了一个工件 - 实际上它是一个gradle插件.

现在我尝试使用下面的build.gradle文件构建另一个需要使用此插件/工件的项目:

apply plugin: 'java'
apply plugin: 'maven'

buildscript {
    dependencies {
        classpath 'com.test:my-gradle-plugin:1.0.0-SNAPSHOT'
    }
}

但是构建失败了:

...
> Could not find group:com.test, module:my-gradle-plugin, version:1.0.0-SNAPSHOT.
...

即使我有上面指向远程maven存储库的settings.xml文件,Gradle也找不到my-gradle-plugin.

如果我在 build.gradle文件中指定存储库,它可以工作:

buildscript {
    repositories {
        maven {
            url "http://myrepo/"
        }
    }
    dependencies {
        classpath 'com.test:my-gradle-plugin:1.0.0-SNAPSHOT'
    }
}

根据这篇文章:

http://forums.gradle.org/gradle/topics/have_mavenlocal_check_m2_home_conf_settings_xml

似乎gradle考虑了settings.xml文件,那么出了什么问题呢？

Answer 1

有一个与此相关的开放票据将有希望实施:

http://issues.gradle.org/browse/GRADLE-2365

但作为一种解决方法,您可以在build.gradle中使用一些groovy脚本来实现此目的.在我的情况下,我需要来自settings.xml的身份验证信息.但这可以很容易地适应获取存储库信息.

例:

def getMavenSettingsCredentials = {
    String userHome = System.getProperty( "user.home" );
    File mavenSettings = new File(userHome, ".m2/settings.xml")
    def xmlSlurper = new XmlSlurper()
    def output = xmlSlurper.parse(mavenSettings)
    return output."servers"."server"
}

def getCredentials = {
    def entries = getMavenSettingsCredentials()
    for (entry in entries) {
        if ( entry."id".text() == "my-server" ) {
            return [username: entry.username.text(), password: entry.password.text()]
    }
  }
}
uploadArchives {
def creds = getCredentials()
repositories.mavenDeployer {
    configuration = configurations.deployerJars
    repository(url: "http://my-release-repository/releases/") {
        authentication(userName: creds["username"], password: creds["password"])
    }
    snapshotRepository(url: "http://my-snapshot-repository/snapshots/") {
        authentication(userName: creds["username"], password: creds["password"])
    }


  }
}

Answer 2

您必须在Gradle构建脚本中声明所有存储库.settings.xml仅用于查找本地Maven存储库的位置,例如在解析时repositories { mavenLocal() }.

Answer 3

gradle-maven-settings-plugin适用于我（至少在我的Windows环境中）

一个应该添加

buildscript {
    repositories {
        maven {
            url "https://plugins.gradle.org/m2/"
        }
    }
}

plugins {
    id 'net.linguica.maven-settings' version '0.5'
}

到build.gradle，然后可以像这样添加存储库：

repositories {
    maven {
        name = 'myRepo' // should match <id>myRepo</id> of appropriate <server> in Maven's settings.xml
        url = 'https://intranet.foo.org/repo'
    }
}

它将使用myRepoMaven的凭据settings.xml访问https://intranet.foo.org/repo存储库