satya - 3/18/2019, 10:32:25 AM

RepositoryHandler is documented here, which is represented by "repositories" script

RepositoryHandler is documented here, which is represented by "repositories" script

satya - 3/18/2019, 10:32:48 AM

Basic definition

satya - 3/18/2019, 10:35:06 AM

Available repositories

flatdir //a set of local directories
google() //google maven repo
gradlePluginPortal() //gradles repos
ivy
Jcenter
maven
mavenCentral
mavenLocal

satya - 3/18/2019, 10:38:08 AM

Examples

repositories {
    mavenCentral artifactUrls: 
             ["http://www.mycompany.com/artifacts1", 
               "http://www.mycompany.com/artifacts2"]

    mavenCentral name: "nonDefaultName", 
        artifactUrls: ["http://www.mycompany.com/artifacts1"]
}

repositories {
    mavenCentral()
}

repositories {
  jcenter {
    artifactUrls = 
       ["http://www.mycompany.com/artifacts1",
        "http://www.mycompany.com/artifacts2"]
  }
  jcenter {
    name = "nonDefaultName"
    artifactUrls = ["http://www.mycompany.com/artifacts1"]
  }
}

repositories {
    flatDir name: 'libs', dirs: "$projectDir/libs"
    flatDir dirs: ["$projectDir/libs1", "$projectDir/libs2"]
}

satya - 3/18/2019, 10:39:41 AM

JCenter and Maven uses the following object to configure themselves

JCenter and Maven uses the following object to configure themselves

satya - 3/18/2019, 11:09:25 AM

Consider this

repositories {
  //This creates a repo pointing to the maven central
  mavenCentral()

  //This creates another maven repo
  //Sets its URL
  maven {
     url "some-url"
     //The following simply overwrites the one before
     //So one is enough
     setUrl("some-other-url");
  }

  //This creates a third maven repo
  //if you want at a different url
  maven {
     url "some-new-url"
  }

}//end of repos

satya - 3/18/2019, 11:09:54 AM

So each entry under repositories creates a new repository

So each entry under repositories creates a new repository

satya - 3/18/2019, 11:10:18 AM

More than one repository of a particular type is ok

More than one repository of a particular type is ok

satya - 3/18/2019, 11:15:33 AM

How do you know what methods are available to configure a given repo like Maven?

satya - 3/18/2019, 11:16:30 AM

For example here is the MavenRepo java object: MavenArtifactRepository

For example here is the MavenRepo java object: MavenArtifactRepository

satya - 3/18/2019, 11:18:48 AM

Here is an example to exercise this

buildscript {

       ext {
              var1 = 'value1'
       }

       repositories {
        maven {
            println "\nOutput from first maven"
            println "***********************"
            println it
            println delegate
            println owner

            println this
            //The following is wrong, the last will take affect
              url ?url1'
              setUrl('url2')
        }

        //you can do this instead
        maven {
            println "\nOutput from second maven"
            println "***********************"

              println it
              println delegate
              println owner
              println this
              url = "blah again" // :)

        }
       }
}

 

task Target {
       doLast {
              println "done"
              println it
              println delegate
       }
}

satya - 3/18/2019, 11:19:56 AM

This will show that the two maven repos are different

satya - 3/18/2019, 11:25:00 AM

So, reading the repositories gradle syntax

//A method call on Project
//Delegate is the RepositoryHandler
//(You know that by looking at Project Signature)

repositories {

   //A method call on RepositoryHandler
   //Creates a Repo represented by
   //MavenArtifactRepository
   Jcenter()

   Jcenter {
     //MavenArtifactRepository
     //is avaiale as the delegate
     //of this closure
     //So all methods are fair game
     //on that delegated object
   }
}

satya - 3/18/2019, 11:26:58 AM

One thing to notice is that ....