chore: add support for mavenCentral publication

build.gradle

@@ -12,8 +12,11 @@ plugins {
     id 'com.android.application' version '7.2.1' apply false
     id 'com.android.library' version '7.2.1' apply false
     id 'org.jetbrains.kotlin.android' version '1.7.0' apply false
+    id 'io.github.gradle-nexus.publish-plugin' version "1.1.0"
 }
 
 task clean(type: Delete) {
     delete rootProject.buildDir
-}
+}
+
+apply from: "${rootDir}/scripts/publish-root.gradle"

composecalendar/build.gradle

@@ -17,7 +17,6 @@
 plugins {
     id 'com.android.library'
     id 'org.jetbrains.kotlin.android'
-    id 'maven-publish'
 }
 
 android {
@@ -73,16 +72,10 @@ dependencies {
     androidTestImplementation 'androidx.test.espresso:espresso-core:3.4.0'
 }
 
-afterEvaluate {
-    publishing {
-        publications {
-            release(MavenPublication) {
-                from components.release
-
-                groupId = 'com.squaredem'
-                artifactId = 'composecalendar'
-                version = '1.0.0'
-            }
-        }
-    }
+ext {
+    PUBLISH_GROUP_ID = 'com.squaredem'
+    PUBLISH_ARTIFACT_ID = 'composecalendar'
+    PUBLISH_VERSION = '1.0.0'
 }
+
+apply from: "${rootProject.projectDir}/scripts/publish-module.gradle"

scripts/publish-module.gradle

@@ -0,0 +1,79 @@
+/*
+ * Copyright 2022 Matteo Miceli
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+apply plugin: 'maven-publish'
+apply plugin: 'signing'
+
+task androidSourcesJar(type: Jar) {
+    archiveClassifier.set('sources')
+    if (project.plugins.findPlugin("com.android.library")) {
+        from android.sourceSets.main.java.srcDirs
+        from android.sourceSets.main.kotlin.srcDirs
+    } else {
+        from sourceSets.main.java.srcDirs
+        from sourceSets.main.kotlin.srcDirs
+    }
+}
+
+artifacts {
+    archives androidSourcesJar
+}
+
+group = PUBLISH_GROUP_ID
+version = PUBLISH_VERSION
+
+afterEvaluate {
+    publishing {
+        publications {
+            release(MavenPublication) {
+                groupId PUBLISH_GROUP_ID
+                artifactId PUBLISH_ARTIFACT_ID
+                version PUBLISH_VERSION
+                from components.release
+
+                artifact androidSourcesJar
+
+                pom {
+                    name = PUBLISH_ARTIFACT_ID
+                    description = 'A basic library that provides an Android composable view which allows selection of a date from a calendar.'
+                    url = 'https://github.com/lampione/ComposeCalendar'
+                    licenses {
+                        license {
+                            name = 'The Apache License, Version 2.0'
+                            url = 'http://www.apache.org/licenses/LICENSE-2.0.txt'
+                        }
+                    }
+                    developers {
+                        developer {
+                            id = 'lampione'
+                            name = 'Matteo Miceli'
+                            email = '[email protected]'
+                        }
+                    }
+                    scm {
+                        connection = 'scm:git:github.com/lampione/ComposeCalendar.git'
+                        developerConnection = 'scm:git:ssh://github.com/lampione/ComposeCalendar.git'
+                        url = 'https://github.com/lampione/ComposeCalendar/tree/main'
+                    }
+                }
+            }
+        }
+    }
+}
+
+signing {
+    sign publishing.publications
+}

scripts/publish-root.gradle

@@ -0,0 +1,48 @@
+/*
+ * Copyright 2022 Matteo Miceli
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+ext["ossrhUsername"] = ''
+ext["ossrhPassword"] = ''
+ext["sonatypeStagingProfileId"] = ''
+ext["signing.keyId"] = ''
+ext["signing.password"] = ''
+ext["signing.key"] = ''
+
+File secretPropsFile = project.rootProject.file('local.properties')
+if (secretPropsFile.exists()) {
+    Properties p = new Properties()
+    new FileInputStream(secretPropsFile).withCloseable { is -> p.load(is) }
+    p.each { name, value -> ext[name] = value }
+} else {
+    ext["ossrhUsername"] = System.getenv('OSSRH_USERNAME')
+    ext["ossrhPassword"] = System.getenv('OSSRH_PASSWORD')
+    ext["sonatypeStagingProfileId"] = System.getenv('SONATYPE_STAGING_PROFILE_ID')
+    ext["signing.keyId"] = System.getenv('SIGNING_KEY_ID')
+    ext["signing.password"] = System.getenv('SIGNING_PASSWORD')
+    ext["signing.key"] = System.getenv('SIGNING_KEY')
+}
+
+nexusPublishing {
+    repositories {
+        sonatype {
+            stagingProfileId = sonatypeStagingProfileId
+            username = ossrhUsername
+            password = ossrhPassword
+            nexusUrl.set(uri("https://s01.oss.sonatype.org/service/local/"))
+            snapshotRepositoryUrl.set(uri("https://s01.oss.sonatype.org/content/repositories/snapshots/"))
+        }
+    }
+}