Update gradle & CI to publish to Maven Central

Author: chrisleversuch

.circleci/config.yml

@@ -26,6 +26,10 @@ commands:
         command: |
           echo $GOOGLE_SERVICES | base64 -di > app/google-services.json
         name: Download google-services.json
+  load_gpg_key:
+    description: Loads the Base64 encoded GPG key into a file
+    steps:
+      - run: echo $GPG_KEY_CONTENTS | base64 -d > $SIGNING_SECRET_KEY_RING_FILE
 
 jobs:
   nightly_check:
@@ -156,6 +160,7 @@ jobs:
     steps:
     - checkout
     - download_google_services
+    - load_gpg_key
     - checksum
     - restore_cache:
         key: gradle-{{ arch }}-{{ checksum "/tmp/checksum.txt" }}
@@ -167,9 +172,11 @@ jobs:
             - ~/.gradle
         key: gradle-{{ arch }}-{{ checksum "/tmp/checksum.txt" }}
     - run:
-        name: Assemble library and distibute
+        name: Assemble library and distribute
         command: |
-          eval "$COMMAND_CREATE_LIB_DIST_RELEASE"
+          ./gradlew kbarcode:assembleRelease
+          ./gradlew kbarcode:androidSourcesJar
+          ./gradlew kbarcode:publishReleasePublicationToMavenCentralRepository
     - store_artifacts:
         path: kbarcode/build/outputs/aar
         destination: apk

kbarcode/build.gradle

@@ -77,33 +77,29 @@ dependencies {
 }
 
 ext {
-    bintrayRepo = 'maven'
-    bintrayName = 'KBarcode'
+    publishGroupId = 'uk.co.brightec.kbarcode'
+    publishArtifactId = 'kbarcode'
+    publishVersion = '1.2.2'
 
-    publishedGroupId = 'uk.co.brightec.kbarcode'
     libraryName = 'KBarcode'
-    artifact = 'kbarcode'
-
     libraryDescription = 'A library to help implement barcode scanning'
-
-    siteUrl = 'https://github.com/brightec/KBarcode'
-    gitUrl = 'https://github.com/brightec/KBarcode.git'
-
-    libraryVersion = '1.2.2'
+    libraryUrl = 'https://github.com/brightec/KBarcode'
 
     developerId = 'alistairsykes'
     developerName = 'Alistair Sykes'
     developerEmail = 'alistair@brightec.co.uk'
 
+    scmConnection = 'scm:git:github.com/brightec/KBarcode.git'
+    scmDeveloperConnection = 'scm:git:ssh://github.com/brightec/KBarcode.git'
+    scmUrl = 'https://github.com/brightec/KBarcode/tree/master'
+
     licenseName = 'MIT'
     licenseUrl = 'https://github.com/brightec/KBarcode/blob/master/LICENSE'
-    allLicenses = ["MIT"]
 }
 
 // Turn off javadocs as currently it doesn't work with kotlin
 tasks.withType(Javadoc).all {
     enabled = false
 }
 
-apply from: 'https://raw.githubusercontent.com/brightec/JCenter/master/installv1.gradle'
-apply from: 'https://raw.githubusercontent.com/brightec/JCenter/master/bintrayv1.gradle'
+apply from: "${rootProject.projectDir}/scripts/publish-mavencentral.gradle"

scripts/publish-mavencentral.gradle

@@ -0,0 +1,114 @@
+// The contents of this file is from https://getstream.io/blog/publishing-libraries-to-mavencentral-2021/
+apply plugin: 'maven-publish'
+apply plugin: 'signing'
+
+task androidSourcesJar(type: Jar) {
+    archiveClassifier.set('sources')
+    if (project.plugins.findPlugin("com.android.library")) {
+        // For Android libraries
+        from android.sourceSets.main.java.srcDirs
+        from android.sourceSets.main.kotlin.srcDirs
+    } else {
+        // For pure Kotlin libraries, in case you have them
+        from sourceSets.main.java.srcDirs
+        from sourceSets.main.kotlin.srcDirs
+    }
+}
+
+artifacts {
+    archives androidSourcesJar
+}
+
+group = publishGroupId
+version = publishVersion
+
+ext["signing.keyId"] = ''
+ext["signing.password"] = ''
+ext["signing.secretKeyRingFile"] = ''
+ext["ossrhUsername"] = ''
+ext["ossrhPassword"] = ''
+ext["sonatypeStagingProfileId"] = ''
+
+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["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')
+    ext["sonatypeStagingProfileId"] = System.getenv('SONATYPE_STAGING_PROFILE_ID')
+}
+
+publishing {
+    publications {
+        release(MavenPublication) {
+            groupId publishGroupId
+            artifactId publishArtifactId
+            version publishVersion
+
+            if (project.plugins.findPlugin("com.android.library")) {
+                artifact("$buildDir/outputs/aar/${project.getName()}-release.aar")
+            } else {
+                artifact("$buildDir/libs/${project.getName()}-${version}.jar")
+            }
+            artifact androidSourcesJar
+
+            // Mostly self-explanatory metadata
+            pom {
+                name = libraryName
+                description = libraryDescription
+                url = libraryUrl
+                licenses {
+                    license {
+                        name = licenseName
+                        url = licenseUrl
+                    }
+                }
+                developers {
+                    developer {
+                        id = developerId
+                        name = developerName
+                        email = developerEmail
+                    }
+                }
+                scm {
+                    connection = scmConnection
+                    developerConnection = scmDeveloperConnection
+                    url = scmUrl
+                }
+                withXml {
+                    def dependenciesNode = asNode().appendNode('dependencies')
+
+                    project.configurations.implementation.allDependencies.each {
+                        def dependencyNode = dependenciesNode.appendNode('dependency')
+                        dependencyNode.appendNode('groupId', it.group)
+                        dependencyNode.appendNode('artifactId', it.name)
+                        dependencyNode.appendNode('version', it.version)
+                    }
+                }
+            }
+        }
+    }
+    repositories {
+        maven {
+            name = "mavenCentral"
+            url = "https://oss.sonatype.org/service/local/staging/deploy/maven2/"
+            credentials {
+                username ossrhUsername
+                password ossrhPassword
+            }
+        }
+    }
+}
+
+signing {
+    sign publishing.publications
+}