Addressed the review comment related to signing the release.

Author: Mansi-mParticle

build.gradle

@@ -30,7 +30,10 @@ subprojects {
         if (project.hasProperty('android')) {
             project.android {
                 if (namespace == null) {
-                    namespace project.group
+                    throw new GradleException(
+                        "Module '${project.name}' is missing an explicit namespace declaration. " +
+                        "Please add 'namespace' to the android {} block in ${project.buildFile.name}"
+                    )
                 }
             }
         }

kit-plugin/src/main/groovy/com/mparticle/kits/KitPlugin.groovy

@@ -140,11 +140,18 @@ class KitPlugin implements Plugin<Project> {
             }
 
             target.extensions.configure(SigningExtension) { signing ->
-                signing.required = { target.gradle.taskGraph.hasTask('publishReleasePublicationToMavenRepository') }
+                signing.required {
+                    target.gradle.taskGraph.hasTask("publishReleasePublicationToMavenRepository")
+                }
+
                 def signingKey = target.findProperty('signingKey') ?: System.getenv('mavenSigningKeyId')
                 def signingPassword = target.findProperty('signingPassword') ?: System.getenv('mavenSigningKeyPassword')
+
                 if (signingKey && signingPassword) {
-                    signing.useInMemoryPgpKeys(target.property('signingKey'), target.property('signingPassword'))
+                    signing.useInMemoryPgpKeys(signingKey, signingPassword)
+                    signing.sign(target.extensions.getByType(PublishingExtension)
+                        .publications
+                        .findByName("release"))
                 }
             }
         }

scripts/maven.gradle

@@ -124,5 +124,5 @@ afterEvaluate {
 }
 
 //Publishing task aliases for simpler local development
-task publishLocal { dependsOn "publishDebugPublicationToMavenLocal"}
-task publishReleaseLocal { dependsOn "publishReleasePublicationToMavenLocal"}
+task publishLocal { dependsOn "publishDebugPublicationToMavenLocal" }
+task publishReleaseLocal { dependsOn "publishReleasePublicationToMavenLocal" }