added mavenCentralPublish.gradle

Author: PhilippSchmelter

CHANGELOG.md

@@ -41,6 +41,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Added Marius Staudt to list of reviewers [#516](https://github.com/ie3-institute/OSMoGrid/issues/501)
 - Create `CITATION.cff` [#531](https://github.com/ie3-institute/OSMoGrid/issues/531)
 - Implemented GitHub Actions Pipeline [#545](https://github.com/ie3-institute/OSMoGrid/issues/545)
+- Added `mavenCentralPublish.gradle` to enable deployment to MavenCentral [#568](https://github.com/ie3-institute/OSMoGrid/issues/568)
 
 ### Changed
 - Rely on Java 17

gradle/scripts/mavenCentralPublish.gradle

@@ -0,0 +1,109 @@
+/* Maven publish - start */
+
+tasks.register("sourcesJar", Jar) {
+  archiveClassifier.set("sources")
+  from sourceSets.main.allJava
+}
+
+tasks.register("javadocJar", Jar) {
+  dependsOn tasks.named("javadoc", Javadoc)
+  archiveClassifier.set("javadoc")
+  from { tasks.named("javadoc", Javadoc).get().destinationDir }
+}
+
+if (project.hasProperty('user') && project.hasProperty('password') && project.hasProperty('deployVersion')) {
+
+  // snapshot version differs from normal version
+  String versionString = project.getProperty('deployVersion')
+
+
+  publishing {
+    publications {
+      create("mavenJava", MavenPublication) {
+
+        versionMapping {
+          // resolves dynamic versioning to current version number
+          usage('java-api') {
+            fromResolutionOf('runtimeClasspath')
+          }
+          usage('java-runtime') {
+            fromResolutionResult()
+          }
+        }
+        pom {
+          description = 'OSMoGrid - a tool to generate life like electrical grid models based on publicly available data, mainly OpenStreetMap.'
+          name = 'OSMoGrid'
+          url = 'https://github.com/ie3-institute/OSMoGrid'
+          organization {
+            name = 'Institute of Energy Systems, Energy Efficiency and Energy Economics (ie3)/TU Dortmund University'
+            url = 'https:www.ie3.tu-dortmund.de/'
+          }
+          issueManagement {
+            system = 'GitHub'
+            url = 'https:github.com/ie3-institute/OSMoGrid/issues'
+          }
+          licenses {
+            license {
+              name = 'BSD 3-Clause License'
+              url = 'https:github.com/ie3-institute/OSMoGrid/blob/master/LICENSE'
+            }
+          }
+          developers {
+            developer {
+              organization = "Institute of Energy Systems, Energy Efficiency and Energy Economics (ie3)/TU Dortmund University"
+              organizationUrl = "https:ie3.etit.tu-dortmund.de"
+            }
+          }
+          scm {
+            connection = 'scm:git:git:github.com/ie3-institute/OSMoGrid.git'
+            developerConnection = 'scm:git:ssh:github.com:ie3-institute/OSMoGrid.git'
+            url = 'https:github.com/ie3-institute/OSMoGrid'
+          }
+        }
+
+        removeTestDependenciesFromPom(pom)
+        groupId = group
+        artifactId = 'OSMoGrid'
+        version = versionString
+
+        from components.java
+        artifact tasks.named("sourcesJar")
+        artifact tasks.named("javadocJar")
+      }
+    }
+    repositories {
+      maven {
+        def releasesRepoUrl = "https://s01.oss.sonatype.org/service/local/staging/deploy/maven2/"
+        def snapshotsRepoUrl = "https://s01.oss.sonatype.org/content/repositories/snapshots/"
+        url = versionString.endsWith('SNAPSHOT') ? snapshotsRepoUrl : releasesRepoUrl
+        credentials {
+          username project.getProperty('user')
+          password project.getProperty('password')
+        }
+      }
+    }
+    signing {
+      useInMemoryPgpKeys(
+        findProperty('signingKey') as String,
+        findProperty('signingPassword') as String
+      )
+      sign publications.mavenJava
+    }
+  }
+
+  tasks.named("generatePomFileForMavenJavaPublication") {
+    destination = layout.buildDirectory.file("generated-pom.xml").get().asFile
+  }
+}
+
+def removeTestDependenciesFromPom(pom) {
+  pom.withXml {
+    def root = asNode()
+    // eliminate test-scoped dependencies (no need in maven central POMs)
+    root.dependencies.removeAll { dep ->
+      dep.scope == "test"
+    }
+  }
+}
+
+/* Maven publish - end */