Fix publishing scripts

gradle/publish-to-central.gradle

@@ -1,16 +1,24 @@
 apply plugin: 'maven-publish'
 apply plugin: 'signing'
 
-def isReleaseBuild() {
-    return !is_snaptshot
+// --- Prepare Settings ---
+static def isReleaseBuild() {
+    return System.getenv('IS_RELEASE') == "true" ?: false
 }
-
 def getRepositoryUsername() {
-    return findProperty('SONATYPE_NEXUS_USERNAME') ?: System.getenv('SONATYPE_NEXUS_USERNAME') ?: ""
+    return findProperty('OSSRH_USERNAME') ?: System.getenv('OSSRH_USERNAME') ?: ""
 }
-
 def getRepositoryPassword() {
-    return findProperty('SONATYPE_NEXUS_PASSWORD') ?: System.getenv('SONATYPE_NEXUS_PASSWORD') ?: ""
+    return findProperty('OSSRH_PASSWORD') ?: System.getenv('OSSRH_PASSWORD') ?: ""
+}
+def getSigningKeyId() {
+    return findProperty('SIGNING_KEY_ID') ?: System.getenv('SIGNING_KEY_ID') ?: ""
+}
+def getSigningKey() {
+    return findProperty('SIGNING_KEY') ?: System.getenv('SIGNING_KEY') ?: ""
+}
+def getSigningPassword() {
+    return findProperty('SIGNING_PASSWORD') ?: System.getenv('SIGNING_PASSWORD') ?: ""
 }
 
 if (!project.tasks.findByName('sourcesJar')) {
@@ -29,6 +37,8 @@ artifacts {
     archives sourcesJar
 }
 
+// --- Publish ---
+
 // OSS Sonatype Repo
 // s01.oss.sonatype.com
 def OSSRepo = "s01.oss.sonatype.org"
@@ -105,15 +115,19 @@ afterEvaluate {
 
     if (isReleaseBuild()) {
         signing {
+            useInMemoryPgpKeys(
+                getSigningKeyId(),
+                getSigningKey(),
+                getSigningPassword(),
+            )
+
             if (pluginManager.hasPlugin('org.jetbrains.kotlin.multiplatform')) {
                 publishing.publications.all {
                     sign it
                 }
             } else {
                 sign publishing.publications.release
             }
-
-//            useGpgCmd()
         }
     }
 }

gradle/versions.gradle

@@ -3,9 +3,6 @@ ext {
     koin_version = '3.2.4-rc1'
     koin_android_version = '3.2.4-rc1'
 
-    // pass it to true to make release
-    is_snaptshot = true
-
     // Kotlin
     kotlin_version = '1.6.21'