Add publishing scripts

Author: dcvz

.gitignore

@@ -2,6 +2,7 @@
 .gradle
 /local.properties
 .DS_Store
+*/build
 /build
 /captures
 .externalNativeBuild

build.gradle.kts

@@ -1,11 +1,11 @@
 plugins {
     kotlin("multiplatform") version "1.6.10"
     id("com.android.library") version "7.0.3"
-    id("maven-publish")
+    id("convention.publication")
 }
 
 group = "com.doublesymmetry"
-version = "0.0.7"
+version = "0.0.1"
 
 repositories {
     google()

convention-plugins/build.gradle.kts

@@ -0,0 +1,7 @@
+plugins {
+    `kotlin-dsl` // Is needed to turn our build logic written in Kotlin into Gralde Plugin
+}
+
+repositories {
+    gradlePluginPortal() // To use 'maven-publish' and 'signing' plugins in our own plugin
+}

convention-plugins/src/main/kotlin/convention.publication.gradle.kts

@@ -0,0 +1,92 @@
+import org.gradle.api.publish.maven.MavenPublication
+import org.gradle.api.tasks.bundling.Jar
+import org.gradle.kotlin.dsl.`maven-publish`
+import org.gradle.kotlin.dsl.signing
+import java.util.*
+
+plugins {
+    id("maven-publish")
+    id("signing")
+}
+
+// Stub secrets to let the project sync and build without the publication values set up
+ext["signing.keyId"] = null
+ext["signing.password"] = null
+ext["signing.secretKeyRingFile"] = null
+ext["ossrhUsername"] = null
+ext["ossrhPassword"] = null
+
+// Grabbing secrets from local.properties file or from environment variables, which could be used on CI
+val secretPropsFile = project.rootProject.file("local.properties")
+if (secretPropsFile.exists()) {
+    secretPropsFile.reader().use {
+        Properties().apply {
+            load(it)
+        }
+    }.onEach { (name, value) ->
+        ext[name.toString()] = value
+    }
+} else {
+    ext["signing.keyId"] = System.getenv("SIGNING_KEY_ID")
+    ext["signing.password"] = System.getenv("SIGNING_PASSWORD")
+    ext["signing.secretKeyRingFile"] = System.getenv("SIGNING_SECRET_KEY_RING_FILE")
+    ext["ossrhUsername"] = System.getenv("OSSRH_USERNAME")
+    ext["ossrhPassword"] = System.getenv("OSSRH_PASSWORD")
+}
+
+val javadocJar by tasks.registering(Jar::class) {
+    archiveClassifier.set("javadoc")
+}
+
+fun getExtraString(name: String) = ext[name].toString()
+
+publishing {
+    // Configure maven central repository
+    repositories {
+        maven {
+            name = "sonatype"
+            setUrl("https://s01.oss.sonatype.org/service/local/staging/deploy/maven2/")
+            credentials {
+                username = getExtraString("ossrhUsername")
+                password = getExtraString("ossrhPassword")
+            }
+        }
+    }
+
+    // Configure all publications
+    publications.withType<MavenPublication> {
+
+        // Stub javadoc.jar artifact
+        artifact(javadocJar.get())
+
+        // Provide artifacts information requited by Maven Central
+        pom {
+            name.set("Multiplatform ViewModel")
+            description.set("Shared ViewModel in Kotlin Multiplatform")
+            url.set("https://github.com/doublesymmetry/multiplatform-viewmodel")
+
+            licenses {
+                license {
+                    name.set("Apache-2.0")
+                    url.set("https://opensource.org/licenses/Apache-2.0")
+                }
+            }
+            developers {
+                developer {
+                    id.set("dcvz")
+                    name.set("David Chavez")
+                    email.set("david@dcvz.io")
+                }
+            }
+            scm {
+                url.set("https://github.com/doublesymmetry/multiplatform-viewmodel")
+            }
+        }
+    }
+}
+
+// Signing artifacts. Signing.* extra properties values will be used
+
+signing {
+    sign(publishing.publications)
+}

settings.gradle.kts

@@ -14,3 +14,5 @@ pluginManagement {
         }
     }
 }
+
+includeBuild("convention-plugins")