#16 add maven publishing

Signed-off-by: Nigel Jones <nigel.l.jones+git@gmail.com>

build.gradle

@@ -3,7 +3,6 @@
  * Copyright Contributors to the ODPi Egeria project.
  */
 
-
 /*
  * Used for Build scripts/plugins only
 */
@@ -38,16 +37,19 @@ plugins {
 /* run './gradlew aggregateJavadocs' at top level to build all docs & output to build/docs/javadoc */
 apply plugin: 'nebula-aggregate-javadocs'
 
-
-
 /*
  * Configuration for all projects - INCLUDING this one
  */
 
+
+
 allprojects {
 
+    // Published artifact info, equired for maven publishing - this is the version of our artifact
     group = 'org.odpi.egeria'
-    version = '2.9-SNAPSHOT'
+    version = '2.10-SNAPSHOT'
+
+    apply plugin: 'idea'
 
     repositories {
          mavenCentral()
@@ -62,6 +64,7 @@ allprojects {
     //    rules = ['all-dependency'] // TODO: Change to criticalRules when ready to enforce
     //
     //}
+
 }
 
 /*
@@ -104,13 +107,35 @@ subprojects {
             }
         }
 
+        // Maven Central (technically sonatype oss) requires we distribute source and javadoc
+        java {
+            sourceCompatibility = "VERSION_1_8"
+            targetCompatibility = "VERSION_1_8"
+            withJavadocJar()
+            withSourcesJar()
+        }
+
+        // Only apply the signing plugin if we're running in the build environment since
+        // this is dependent on having access to sonatype, and suitable GPG keys
+        if (System.getenv("CI"))  {
+            apply plugin: 'signing'
+            // Artifacts need signing for maven central - supplied by GitHub secrets
+        }
+
     }
 
     // sources required to publish a legitimate maven package for distribution
     java {
         withSourcesJar()
     }
 
+    // For later java versions this is recommended - keep conditional in case we want to build on 8
+    javadoc {
+        if(JavaVersion.current().isJava9Compatible()) {
+            options.addBooleanOption('html5', true)
+        }
+    }
+
     //need to decide who owns the testing infrastructure
     //random junit versions picked below.
     test {

postgres-connector/build.gradle

@@ -43,5 +43,85 @@ jar {
             into "libs"
         }
     }
+
+    // We only have a single artifact for now - this additional metadata is
+// required for publishing to maven central. As above, only if we're running in a build pipeline
+// Environment variables are sourced from GitHub secrets in the CI pipeline
+    if (System.getenv("CI")) {
+        publishing {
+            publications {
+                // definining a publication called 'connector'
+                connector(MavenPublication) {
+                    // Pick up the standard java artifacts
+                    from components.java
+                    // by default, gradle's groupId, artifactId, version are used for the maven coordinates
+                    // but we need additional metadata to align with Egeria (more may need to be added)
+                    pom {
+                        description = 'Postgres Connector for Egeria'
+                        url = 'http://egeria.odpi.org'
+                        // No additional properties for now
+                        //properties = [
+                        //        propname: "propvalue"
+                        //]
+                        licenses {
+                            // Code
+                            license {
+                                name = 'The Apache License, Version 2.0'
+                                url = 'http://www.apache.org/licenses/LICENSE-2.0.txt'
+                            }
+                            // Docs
+                            license {
+                                name = 'Creative Commons Attribution 4.0 International (CC BY 4.0)'
+                                url = 'https://creativecommons.org/licenses/by/4.0'
+                            }
+                        }
+                        developers {
+                            developer {
+                                id = 'planetf1'
+                                name = 'Nigel Jones'
+                                email = 'nigel.l.jones+git@gmail.com'
+                            }
+                        }
+                        scm {
+                            connection = 'scm:git:git://github.com/odpi/egeria-database-connectors.git'
+                            developerConnection = 'scm:git:ssh://github.com/odpi/egeria/egeria-database-connectors.git'
+                            url = 'http://github.com/odpi/egeria-database-connectors/'
+                        }
+
+                    }
+                }
+
+            }
+            // Release versions get pushed to staging area on maven central, snapshots to snapshot repo
+            // Secrets for credentials
+            repositories {
+                maven {
+                    name = 'OSSRH'
+                    def releasesRepoUrl = 'https://oss.sonatype.org/service/local/staging/deploy/maven2'
+                    def snapshotsRepoUrl = 'https://oss.sonatype.org/content/repositories/snapshots'
+                    url = version.endsWith('SNAPSHOT') ? snapshotsRepoUrl : releasesRepoUrl
+                    // User token (under profile) on oss.sonatype.org
+                    credentials {
+                        username = System.getenv("OSSRH_USERNAME")
+                        password = System.getenv("OSSRH_TOKEN")
+                    }
+                }
+            }
+        }
+
+        // To publish to ossrh we need to sign the artifacts
+        signing {
+            // This is the publication to sign
+            sign publishing.publications.connector
+            // gpg --export-secret-keys myemal@gmail.com | base64
+            def signingKey = System.getenv("OSSRH_GPG_PRIVATE_KEY")
+            // Passphrase for key
+            def signingPassword = System.getenv("OSSRH_GPG_PASSPHRASE")
+            // public key id (last 8 characters only) - note keys also need uploading to all the main registries
+            def signingKeyId = System.getenv("OSSRH_GPG_KEYID")
+            // We use these values from secrets rather than gradle.properties
+            useInMemoryPgpKeys(signingKeyId,signingKey, signingPassword)
+        }
+    }
 }