Set up Maven packaging and Bintray upload (#104)

Summary:
This make use of the the setup we have at Litho, which should make
it easier to keep them in sync.

It creates proper source jars, AARs (without bundling in unwanted
transitive deps) and POMs.
Closes https://github.com/facebook/Sonar/pull/104

Reviewed By: priteshrnandgaonkar

Differential Revision: D8638912

Pulled By: passy

fbshipit-source-id: ff4921c0683e9b6f859085b542ceae840a7e8291

gradle/android-maven-install.gradle

@@ -0,0 +1,53 @@
+/*
+ * Copyright 2014-present Facebook, Inc.
+ *
+ * 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.
+ */
+
+// Configure the Android maven publication
+
+apply plugin: 'com.github.dcendents.android-maven'
+
+version = VERSION_NAME
+group = GROUP
+// Set the .aar / .jar base file name to match the artifact ID
+// in case the module has a different name
+project.archivesBaseName = POM_ARTIFACT_ID
+
+install {
+    repositories.mavenInstaller {
+        // This generates POM.xml with proper parameters
+        pom.project {
+            name POM_NAME
+            artifactId POM_ARTIFACT_ID
+            packaging POM_PACKAGING
+            description POM_DESCRIPTION
+            url projectUrl
+
+            scm {
+                url scmUrl
+                connection scmConnection
+                developerConnection scmDeveloperConnection
+            }
+
+            licenses projectLicenses
+
+            developers {
+                developer {
+                    id developerId
+                    name developerName
+                }
+            }
+        }
+    }
+}

gradle/android-tasks.gradle

@@ -0,0 +1,110 @@
+/*
+ * Copyright 2014-present Facebook, Inc.
+ *
+ * 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.
+ */
+
+import java.nio.file.Files
+import java.nio.file.Paths
+import java.io.FileOutputStream
+import java.util.zip.ZipFile
+
+// Android tasks for Javadoc and sources.jar generation
+
+afterEvaluate { project ->
+    if (POM_PACKAGING == 'aar') {
+        task androidJavadoc(type: Javadoc, dependsOn: assembleDebug) {
+            source += files(android.sourceSets.main.java.srcDirs)
+            failOnError false
+            // This task will try to compile *everything* it finds in the above directory and
+            // will choke on text files it doesn't understand.
+            exclude '**/BUCK'
+            exclude '**/*.md'
+        }
+
+        task androidJavadocJar(type: Jar, dependsOn: androidJavadoc) {
+            classifier = 'javadoc'
+            from androidJavadoc.destinationDir
+        }
+
+        task androidSourcesJar(type: Jar) {
+            classifier = 'sources'
+            from android.sourceSets.main.java.srcDirs
+        }
+
+        android.libraryVariants.all { variant ->
+            def name = variant.name.capitalize()
+            task "jar${name}"(type: Jar, dependsOn: variant.javaCompile) {
+                from variant.javaCompile.destinationDir
+            }
+
+            androidJavadoc.doFirst {
+                classpath += files(android.bootClasspath)
+                classpath += files(variant.javaCompile.classpath.files)
+                // This is generated by `assembleDebug` and holds the JARs generated by the APT.
+                classpath += fileTree(dir: "$buildDir/intermediates/bundles/debug/", include: '**/*.jar')
+
+                // Process AAR dependencies
+                def aarDependencies = classpath.filter { it.name.endsWith('.aar') }
+                classpath -= aarDependencies
+                aarDependencies.each { aar ->
+                    // Extract classes.jar from the AAR dependency, and add it to the javadoc classpath
+                    def outputPath = "$buildDir/tmp/aarJar/${aar.name.replace('.aar', '.jar')}"
+                    classpath += files(outputPath)
+
+                    // Use a task so the actual extraction only happens before the javadoc task is run
+                    dependsOn task(name: "extract ${aar.name}").doLast {
+                        extractEntry(aar, 'classes.jar', outputPath)
+                    }
+                }
+            }
+        }
+
+        artifacts.add('archives', androidJavadocJar)
+        artifacts.add('archives', androidSourcesJar)
+    }
+
+    if (POM_PACKAGING == 'jar') {
+        task javadocJar(type: Jar, dependsOn: javadoc) {
+            classifier = 'javadoc'
+            from javadoc.destinationDir
+        }
+
+        task sourcesJar(type: Jar, dependsOn: classes) {
+            classifier = 'sources'
+            from sourceSets.main.allSource
+        }
+
+        artifacts.add('archives', javadocJar)
+        artifacts.add('archives', sourcesJar)
+    }
+}
+
+// Utility method to extract only one entry in a zip file
+private def extractEntry(archive, entryPath, outputPath) {
+    if (!archive.exists()) {
+        throw new GradleException("archive $archive not found")
+    }
+
+    def zip = new ZipFile(archive)
+    zip.entries().each {
+        if (it.name == entryPath) {
+            def path = Paths.get(outputPath)
+            if (!Files.exists(path)) {
+                Files.createDirectories(path.getParent())
+                Files.copy(zip.getInputStream(it), path)
+            }
+        }
+    }
+    zip.close()
+}

gradle/bintray.gradle

@@ -0,0 +1,79 @@
+/*
+ * Copyright 2014-present Facebook, Inc.
+ *
+ * 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.
+ */
+
+// Upload to Bintray
+apply plugin: 'com.jfrog.bintray'
+
+def getBintrayUsername() {
+    return project.hasProperty('bintrayUsername') ? property('bintrayUsername') : System.getenv('BINTRAY_USERNAME')
+}
+
+def getBintrayApiKey() {
+    return project.hasProperty('bintrayApiKey') ? property('bintrayApiKey') : System.getenv('BINTRAY_API_KEY')
+}
+
+def getBintrayGpgPassword() {
+    return project.hasProperty('bintrayGpgPassword') ? property('bintrayGpgPassword') : System.getenv('BINTRAY_GPG_PASSWORD')
+}
+
+def getMavenCentralUsername() {
+    return project.hasProperty('mavenCentralUsername') ? property('mavenCentralUsername') : System.getenv('MAVEN_CENTRAL_USERNAME')
+}
+
+def getMavenCentralPassword() {
+    return project.hasProperty('mavenCentralPassword') ? property('mavenCentralPassword') : System.getenv('MAVEN_CENTRAL_PASSWORD')
+}
+
+def shouldSyncWithMavenCentral() {
+    return project.hasProperty('syncWithMavenCentral') ? property('syncWithMavenCentral').toBoolean() : false
+}
+
+def dryRunOnly() {
+    return project.hasProperty('dryRun') ? property('dryRun').toBoolean() : false
+}
+
+bintray {
+    user = getBintrayUsername()
+    key = getBintrayApiKey()
+    configurations = ['archives']
+    pkg {
+        repo = bintrayRepo
+        userOrg =  bintrayUserOrg
+        name = bintrayName
+        desc = bintrayDescription
+        websiteUrl = projectUrl
+        issueTrackerUrl = issuesUrl
+        vcsUrl = scmUrl
+        licenses = projectLicenses
+        dryRun = dryRunOnly()
+        override = true
+        publish = true
+        publicDownloadNumbers = true
+        version {
+            desc = bintrayDescription
+            gpg {
+                sign = true
+                passphrase = getBintrayGpgPassword()
+            }
+            mavenCentralSync {
+                sync = shouldSyncWithMavenCentral()
+                user = getMavenCentralUsername()
+                password = getMavenCentralPassword()
+                close = '1' // If set to 0, you have to manually click release
+            }
+        }
+    }
+}

gradle/gradle-mvn-push.gradle

@@ -0,0 +1,96 @@
+/*
+ * Copyright 2013 Chris Banes
+ *
+ * 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: 'signing'
+
+version = VERSION_NAME
+group = GROUP
+
+def isReleaseBuild() {
+  return !VERSION_NAME.contains('SNAPSHOT')
+}
+
+def getReleaseRepositoryUrl() {
+  return hasProperty('RELEASE_REPOSITORY_URL') ? RELEASE_REPOSITORY_URL
+      : "https://oss.sonatype.org/service/local/staging/deploy/maven2/"
+}
+
+def getSnapshotRepositoryUrl() {
+  return hasProperty('SNAPSHOT_REPOSITORY_URL') ? SNAPSHOT_REPOSITORY_URL
+      : "https://oss.sonatype.org/content/repositories/snapshots/"
+}
+
+def getRepositoryUsername() {
+  return hasProperty('SONATYPE_NEXUS_USERNAME') ? SONATYPE_NEXUS_USERNAME : ""
+}
+
+def getRepositoryPassword() {
+  return hasProperty('SONATYPE_NEXUS_PASSWORD') ? SONATYPE_NEXUS_PASSWORD : ""
+}
+
+afterEvaluate { project ->
+  uploadArchives {
+    repositories {
+      mavenDeployer {
+        beforeDeployment { MavenDeployment deployment -> signing.signPom(deployment) }
+
+        pom.groupId = GROUP
+        pom.artifactId = POM_ARTIFACT_ID
+        pom.version = VERSION_NAME
+
+        repository(url: getReleaseRepositoryUrl()) {
+          authentication(userName: getRepositoryUsername(), password: getRepositoryPassword())
+        }
+        snapshotRepository(url: getSnapshotRepositoryUrl()) {
+          authentication(userName: getRepositoryUsername(), password: getRepositoryPassword())
+        }
+
+        pom.project {
+          name POM_NAME
+          packaging POM_PACKAGING
+          description POM_DESCRIPTION
+          url POM_URL
+
+          scm {
+            url POM_SCM_URL
+            connection POM_SCM_CONNECTION
+            developerConnection POM_SCM_DEV_CONNECTION
+          }
+
+          licenses {
+            license {
+              name POM_LICENSE_NAME
+              url POM_LICENSE_URL
+              distribution POM_LICENSE_DIST
+            }
+          }
+
+          developers {
+            developer {
+              id POM_DEVELOPER_ID
+              name POM_DEVELOPER_NAME
+            }
+          }
+        }
+      }
+    }
+  }
+
+  signing {
+    required { isReleaseBuild() && gradle.taskGraph.hasTask('uploadArchives') }
+    sign configurations.archives
+  }
+}

gradle/release-bintray.gradle

@@ -0,0 +1,49 @@
+/*
+ * Copyright 2014-present Facebook, Inc.
+ *
+ * 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.
+ */
+
+// Set up everything required for releasing on Bintray
+ext {
+    bintrayRepo = 'maven'
+    bintrayUserOrg = 'facebook'
+    bintrayName = "${GROUP}:${POM_ARTIFACT_ID}"
+    bintrayDescription = POM_DESCRIPTION
+    projectUrl = POM_URL
+    issuesUrl = 'https://github.com/facebook/litho/issues'
+    scmUrl = POM_SCM_URL
+    scmConnection = POM_SCM_CONNECTION
+    scmDeveloperConnection = POM_SCM_DEV_CONNECTION
+
+    publishedGroupId = GROUP
+    libraryName = 'litho'
+    artifact = 'litho'
+
+    developerId = POM_DEVELOPER_ID
+    developerName = POM_DEVELOPER_NAME
+
+    projectLicenses = {
+        license {
+            name = POM_LICENSE_NAME
+            url = POM_LICENSE_URL
+            distribution = POM_LICENSE_DIST
+        }
+    }
+}
+
+// Set up the Android Maven publication (POM etc.)
+apply from: rootProject.file('gradle/android-maven-install.gradle')
+
+// Upload to Bintray
+apply from: rootProject.file('gradle/bintray.gradle')

gradle/release.gradle

@@ -0,0 +1,24 @@
+/*
+ * Copyright 2014-present Facebook, Inc.
+ *
+ * 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.
+ */
+
+// Common Android tasks for all releases that generate Javadocs, sources, etc.
+apply from: rootProject.file('gradle/android-tasks.gradle')
+
+// Upload to Bintray
+apply from: rootProject.file('gradle/release-bintray.gradle')
+
+// Upload directly to standard Maven Central (for SNAPSHOTs)
+apply from: rootProject.file('gradle/gradle-mvn-push.gradle')