• Spring Boot Gradle Plugin Reference Guide 2.x 기준

• SpringBoot jar 파일을 SonaType Nexus 등 Maven Repository에 Publish 하기

• Gradle Maven Deployment이 적용되면 자동으로 uploadBootArchives 태스크 생성됨.

uploadBootArchives {
    repositories {
        mavenDeployer {
            repository url: 'https://repo.example.com'
        }
    }
}

• Gradle Maven Publish Plugin

apply plugin: 'maven'
apply plugin: "maven-publish"
 
bootJar.enabled = true
jar.enabled = true
 
bootJar {
    mainClassName = "yourMainClass"
}
 
publishing {
    publications {
        bootJava(MavenPublication) {
            groupId 'your group id' // 생략하면 프로젝트 기본값
            artifactId 'artifact id' // 생략하면 프로젝트 기본값
            artifact bootJar
        }
    }
    repositories {
        maven {
            credentials {
                username '리포지토리 접속 username'
                password '리포지토리 접속 password'
            }
            url 'http://nexus.host.name/content/repositories/releases/'
        }
    }
}
 
// 불필요하게 publsh.dependsOn bootJar 를 붙일 경우 생성된 jar 에 의존성 *.jar 파일들이 추가가 안되는 형상이 있었음.

• publishing.gradle

  import java.time.LocalDateTime
  import java.time.format.DateTimeFormatter
  
  apply plugin: 'maven'
  apply plugin: "maven-publish"
  
  def isProduction = Boolean.getBoolean('production')
  def buildDateTime = LocalDateTime.now().format(DateTimeFormatter.ofPattern("yyyy.MM.dd.HH.mm.ss"))
  version = isProduction ? buildDateTime + "PROD" : buildDateTime + "DEV-SNAPSHOT"
  
  def initializePublishing(String targetGroupId, String targetArtifactId) {
      publishing {
          publications {
              zipUpload(MavenPublication) {
                  groupId targetGroupId
                  artifactId targetArtifactId
                  artifact project.bootJar
              }
          }
          repositories {
              maven {
                  credentials {
                      username 'username'
                      password 'passwd'
                  }
  
                  def releaseRepoUrl = 'http://repositories/releases/'
                  def snapshotRepoUrl = 'http://repositories/snapshots/'
                  url version.endsWith('SNAPSHOT') ?  snapshotRepoUrl : releaseRepoUrl
              }
          }
      }
  }
  
  ext {
      initializePublishing = this.&initializePublishing
  }
  

• build.gradle에서

  apply from: 'publishing.gradle'
  
  initializePublishing('groupId', 'artifactId')