build: support publishing artifacts from local env

Author: daleiz

client/build.gradle

@@ -111,7 +111,6 @@ publishing {
             // def snapshotsRepoUrl = layout.buildDirectory.dir('repos/snapshots')
             url = version.endsWith('SNAPSHOT') ? snapshotsRepoUrl : releasesRepoUrl
             credentials {
-
                 username = project.hasProperty('ossrhUsername') ? ossrhUsername : System.getenv("OSSRH_USERNAME")
                 password = project.hasProperty('ossrhPassword') ? ossrhPassword : System.getenv("OSSRH_TOKEN")
             }
@@ -120,10 +119,14 @@ publishing {
 }
 
 signing {
-    def signingKey = System.getenv("OSSRH_GPG_SECRET_KEY")
-    def signingPassword = System.getenv("OSSRH_GPG_PASSWORD")
-    useInMemoryPgpKeys(signingKey, signingPassword)
-    sign publishing.publications.mavenJava
+    if(project.hasProperty('signing.keyId')) {
+      sign publishing.publications.mavenJava
+    } else {
+      def signingKey = System.getenv("OSSRH_GPG_SECRET_KEY")
+      def signingPassword = System.getenv("OSSRH_GPG_PASSWORD")
+      useInMemoryPgpKeys(signingKey, signingPassword)
+      sign publishing.publications.mavenJava
+    }
 }