build: use the same custom pom file for 'install', 'uploadArchives' and 'uploadBintray'. A custom pom with minimal information required to maven central

bintray.gradle

@@ -8,6 +8,7 @@ bintray {
     user = bintray_user
     key = bintray_api_key
     configurations = ['archives']
+    dryRun = false 
     pkg {
         repo = 'org.jmonkeyengine'
         userOrg = 'jmonkeyengine'
@@ -15,11 +16,13 @@ bintray {
         desc = POM_DESCRIPTION
         websiteUrl = POM_URL
         licenses = ['BSD New']
-        vcsUrl = POM_SCM_CONNECTION
+        vcsUrl = POM_SCM_URL
         labels = ['jmonkeyengine']
     }
 }
 
+bintrayUpload.dependsOn(writeFullPom)
+
 bintrayUpload.onlyIf {
     (bintray_api_key.length() > 0) &&
     !(version ==~ /.*SNAPSHOT/)

common.gradle

@@ -61,12 +61,84 @@ task javadocJar(type: Jar, dependsOn: javadoc, description: 'Creates a jar from
     from javadoc.destinationDir
 }
 
+def pomConfig = {
+    name POM_NAME
+    description POM_DESCRIPTION
+    url POM_URL
+    inceptionYear '2016'
+    scm {
+        url POM_SCM_URL
+        connection POM_SCM_CONNECTION
+        developerConnection POM_SCM_DEVELOPER_CONNECTION
+    }
+    licenses {
+        license {
+            name POM_LICENSE_NAME
+            url POM_LICENSE_URL
+            distribution POM_LICENSE_DISTRIBUTION
+        }
+    }
+    // from http://hub.jmonkeyengine.org/introduction/team/
+    developers {
+        developer {
+            name 'Kirill Vainer'
+            id 'Momoko_Fan'
+        }
+        developer {
+            name 'Erlend Sogge Heggen'
+            id 'erlend_sh'
+        }
+        developer {
+            name 'Skye Book'
+            id 'sbook'
+        }
+        developer {
+            name 'Normen Hansen'
+            id 'normen'
+        }
+        developer {
+            name 'Ruth Kusterer'
+            id 'zathras'
+        }
+        developer {
+            name 'Rémy Bouquet'
+            id 'nehon'
+        }
+        developer {
+            name 'Paul Speed'
+            id 'pspeed'
+        }
+        developer {
+            name 'Brent Owens'
+            id 'Sploreg'
+        }
+        developer {
+            name 'Eric Potter'
+            id 'iwgeric'
+        }
+    }
+}
+
+// workaround to be able to use same custom pom with 'maven' and 'bintray' plugin
+task writeFullPom {
+    ext.pomFile = "$mavenPomDir/${project.name}-${project.version}.pom"
+    outputs.file pomFile
+    doLast {
+        pom {
+            project pomConfig
+        }.writeTo(pomFile)
+    }
+}
+install.dependsOn(writeFullPom)
+uploadArchives.dependsOn(writeFullPom)
+
 artifacts {
     archives jar
     archives sourcesJar
     if(buildJavaDoc == "true"){
         archives javadocJar
     }
+    archives writeFullPom.outputs.files[0]
 }
 
 uploadArchives {
@@ -80,23 +152,7 @@ uploadArchives {
              authentication(userName: "www-updater", privateKey: "private/www-updater.key")
         }
         
-        pom.project {
-            name POM_NAME
-            description POM_DESCRIPTION
-            url POM_URL
-            scm {
-                url POM_SCM_URL
-                connection POM_SCM_CONNECTION
-                developerConnection POM_SCM_DEVELOPER_CONNECTION
-            }
-            licenses {
-                license {
-                    name POM_LICENSE_NAME
-                    url POM_LICENSE_URL
-                    distribution POM_LICENSE_DISTRIBUTION
-                }
-            }
-        }
+        pom.project pomConfig
     }
 }