Gradle tasks for publishing to bintray, jcenter, mavencentral etc. (#25351)

Summary:
Gradle tasks for publishing to bintray and jcenter, mavencentral; snapshot buidls go to oss.sonatype.org

Those gradle changes adds tasks:

bintrayUpload - publishing on bintray, in 'facebook' org
uploadArchives - uploading to maven repos

Gradle tasks are copied from facebook open sourced libraries like https://github.com/facebook/litho, https://github.com/facebookincubator/spectrum

To do the publishing we need to provide somehow (e.g. in ~/.gradle/gradle.properties)
```
signing.keyId=
signing.password=
signing.secretKeyRingFile=

bintrayUsername=
bintrayApiKey=
bintrayGpgPassword=

SONATYPE_NEXUS_USERNAME=
SONATYPE_NEXUS_PASSWORD=
```

android/libs/fbjni is submodule, to be able to add publishing tasks to it (it needs to be published as separate maven dependency) - I created `android/libs/fbjni_local` that has only `build.gradle` with release tasks.

pytorch_android dependency for ':fbjni' changed from implementation -> api as implementation treated as 'private' dependency which is translated to scope=runtime in maven pom file, api works as 'compile'

Testing:
it's already published on bintray with version 0.0.4 and can be used in gradle files as

```
repositories {
    maven {
        url  "https://dl.bintray.com/facebook/maven"
    }
}

dependencies {
    implementation 'com.facebook:pytorch_android:0.0.4'
    implementation 'com.facebook:pytorch_android_torchvision:0.0.4'
}
```

It was published in com.facebook group

I requested sync to jcenter from bintray, that usually takes 2-3 days

Versioning added version suffixes to aar output files and circleCI jobs for android start failing as they expected just pytorch_android.aar pytorch_android_torchvision.aar, without any version

To avoid it - I changed circleCI android jobs to zip *.aar files and publish as single artifact with name artifacts.zip, I will add kostmo to check this part, if circleCI jobs finish ok - everything works :)
Pull Request resolved: https://github.com/pytorch/pytorch/pull/25351

Reviewed By: kostmo

Differential Revision: D17135886

Pulled By: IvanKobzarev

fbshipit-source-id: 64eebac670bbccaaafa1b04eeab15760dd5ecdf9

.circleci/config.yml

@@ -1198,19 +1198,15 @@ jobs:
           export COMMAND='((echo "source ./workspace/env" && echo "export BUILD_ENVIRONMENT=${BUILD_ENVIRONMENT}" && echo "sudo chown -R jenkins workspace && cd workspace && ./.circleci/scripts/build_android_gradle.sh") | docker exec -u jenkins -i "$id_x86_32" bash) 2>&1'
           echo ${COMMAND} > ./command.sh && unbuffer bash ./command.sh | ts
 
-          mkdir -p ~/workspace/build_android_aar
-          docker cp $id_x86_32:/var/lib/jenkins/workspace/android/pytorch_android/build/outputs/aar/pytorch_android.aar ~/workspace/build_android_aar/
-          docker cp $id_x86_32:/var/lib/jenkins/workspace/android/pytorch_android_torchvision/build/outputs/aar/pytorch_android_torchvision.aar ~/workspace/build_android_aar/
+          mkdir -p ~/workspace/build_android_artifacts
+          docker cp $id_x86_32:/var/lib/jenkins/workspace/android/artifacts.tgz ~/workspace/build_android_artifacts/
 
           output_image=$docker_image_libtorch_android_x86_32-gradle
           docker commit "$id_x86_32" ${output_image}
           docker push ${output_image}
     - store_artifacts:
-        path: ~/workspace/build_android_aar/pytorch_android.aar
-        destination: pytorch_android.aar
-    - store_artifacts:
-        path: ~/workspace/build_android_aar/pytorch_android_torchvision.aar
-        destination: pytorch_android_torchvision.aar
+        path: ~/workspace/build_android_artifacts/artifacts.tgz
+        destination: artifacts.tgz
 
   pytorch_android_gradle_build-x86_32:
     environment:
@@ -1253,20 +1249,15 @@ jobs:
           export COMMAND='((echo "source ./workspace/env" && echo "export BUILD_ENVIRONMENT=${BUILD_ENVIRONMENT}" && echo "sudo chown -R jenkins workspace && cd workspace && ./.circleci/scripts/build_android_gradle.sh") | docker exec -u jenkins -i "$id" bash) 2>&1'
           echo ${COMMAND} > ./command.sh && unbuffer bash ./command.sh | ts
 
-          mkdir -p ~/workspace/build_android_aar_x86_32
-          docker cp $id:/var/lib/jenkins/workspace/android/pytorch_android/build/outputs/aar/pytorch_android.aar ~/workspace/build_android_aar_x86_32/
-          docker cp $id:/var/lib/jenkins/workspace/android/pytorch_android_torchvision/build/outputs/aar/pytorch_android_torchvision.aar ~/workspace/build_android_aar_x86_32/
+          mkdir -p ~/workspace/build_android_x86_32_artifacts
+          docker cp $id:/var/lib/jenkins/workspace/android/artifacts.tgz ~/workspace/build_android_x86_32_artifacts/
 
           output_image=${DOCKER_IMAGE}-${CIRCLE_SHA1}-android-gradle-x86_32
           docker commit "$id" ${output_image}
           docker push ${output_image}
     - store_artifacts:
-        path: ~/workspace/build_android_aar_x86_32/pytorch_android.aar
-        destination: pytorch_android_x86.aar
-    - store_artifacts:
-        path: ~/workspace/build_android_aar_x86_32/pytorch_android_torchvision.aar
-        destination: pytorch_android_torchvision_x86.aar
-
+        path: ~/workspace/build_android_x86_32_artifacts/artifacts.tgz
+        destination: artifacts.tgz
   
   # update_s3_htmls job
   # These jobs create html files for every cpu/cu## folder in s3. The html

.circleci/scripts/build_android_gradle.sh

@@ -78,4 +78,4 @@ else
     $GRADLE_PATH -p ~/workspace/android/ assembleRelease
 fi
 
-find . -type f -name *aar | xargs ls -lah
+find . -type f -name *aar -print | xargs tar cfvz ~/workspace/android/artifacts.tgz

.circleci/verbatim-sources/job-specs-custom.yml

@@ -347,19 +347,15 @@
           export COMMAND='((echo "source ./workspace/env" && echo "export BUILD_ENVIRONMENT=${BUILD_ENVIRONMENT}" && echo "sudo chown -R jenkins workspace && cd workspace && ./.circleci/scripts/build_android_gradle.sh") | docker exec -u jenkins -i "$id_x86_32" bash) 2>&1'
           echo ${COMMAND} > ./command.sh && unbuffer bash ./command.sh | ts
 
-          mkdir -p ~/workspace/build_android_aar
-          docker cp $id_x86_32:/var/lib/jenkins/workspace/android/pytorch_android/build/outputs/aar/pytorch_android.aar ~/workspace/build_android_aar/
-          docker cp $id_x86_32:/var/lib/jenkins/workspace/android/pytorch_android_torchvision/build/outputs/aar/pytorch_android_torchvision.aar ~/workspace/build_android_aar/
+          mkdir -p ~/workspace/build_android_artifacts
+          docker cp $id_x86_32:/var/lib/jenkins/workspace/android/artifacts.tgz ~/workspace/build_android_artifacts/
 
           output_image=$docker_image_libtorch_android_x86_32-gradle
           docker commit "$id_x86_32" ${output_image}
           docker push ${output_image}
     - store_artifacts:
-        path: ~/workspace/build_android_aar/pytorch_android.aar
-        destination: pytorch_android.aar
-    - store_artifacts:
-        path: ~/workspace/build_android_aar/pytorch_android_torchvision.aar
-        destination: pytorch_android_torchvision.aar
+        path: ~/workspace/build_android_artifacts/artifacts.tgz
+        destination: artifacts.tgz
 
   pytorch_android_gradle_build-x86_32:
     environment:
@@ -402,17 +398,12 @@
           export COMMAND='((echo "source ./workspace/env" && echo "export BUILD_ENVIRONMENT=${BUILD_ENVIRONMENT}" && echo "sudo chown -R jenkins workspace && cd workspace && ./.circleci/scripts/build_android_gradle.sh") | docker exec -u jenkins -i "$id" bash) 2>&1'
           echo ${COMMAND} > ./command.sh && unbuffer bash ./command.sh | ts
 
-          mkdir -p ~/workspace/build_android_aar_x86_32
-          docker cp $id:/var/lib/jenkins/workspace/android/pytorch_android/build/outputs/aar/pytorch_android.aar ~/workspace/build_android_aar_x86_32/
-          docker cp $id:/var/lib/jenkins/workspace/android/pytorch_android_torchvision/build/outputs/aar/pytorch_android_torchvision.aar ~/workspace/build_android_aar_x86_32/
+          mkdir -p ~/workspace/build_android_x86_32_artifacts
+          docker cp $id:/var/lib/jenkins/workspace/android/artifacts.tgz ~/workspace/build_android_x86_32_artifacts/
 
           output_image=${DOCKER_IMAGE}-${CIRCLE_SHA1}-android-gradle-x86_32
           docker commit "$id" ${output_image}
           docker push ${output_image}
     - store_artifacts:
-        path: ~/workspace/build_android_aar_x86_32/pytorch_android.aar
-        destination: pytorch_android_x86.aar
-    - store_artifacts:
-        path: ~/workspace/build_android_aar_x86_32/pytorch_android_torchvision.aar
-        destination: pytorch_android_torchvision_x86.aar
-
+        path: ~/workspace/build_android_x86_32_artifacts/artifacts.tgz
+        destination: artifacts.tgz

.gitignore

@@ -9,6 +9,7 @@
 ## PyTorch
 
 .coverage
+.gradle
 .hypothesis
 .mypy_cache
 */*.pyc

android/build.gradle

@@ -21,6 +21,9 @@ buildscript {
 
     dependencies {
         classpath 'com.android.tools.build:gradle:3.3.2'
+        classpath "com.jfrog.bintray.gradle:gradle-bintray-plugin:${GRADLE_BINTRAY_PLUGIN_VERSION}"
+        classpath "com.github.dcendents:android-maven-gradle-plugin:${ANDROID_MAVEN_GRADLE_PLUGIN_VERSION}"
+        classpath "org.jfrog.buildinfo:build-info-extractor-gradle:4.9.8"
     }
 }
 

android/gradle.properties

@@ -1 +1,19 @@
 ABI_FILTERS=armeabi-v7a,arm64-v8a,x86,x86_64
+
+VERSION_NAME=0.0.4
+GROUP=org.pytorch
+MAVEN_GROUP=com.facebook
+POM_URL=https://github.com/pytorch/pytorch/tree/master/android
+POM_SCM_URL=https://github.com/pytorch/pytorch.git
+POM_SCM_CONNECTION=scm:git:https://github.com/pytorch/pytorch
+POM_SCM_DEV_CONNECTION=scm:git:git@github.com:pytorch/pytorch.git
+POM_LICENSE_NAME=BSD 3-Clause
+POM_LICENSE_URL=https://github.com/pytorch/pytorch/blob/master/LICENSE
+POM_ISSUES_URL=https://github.com/pytorch/pytorch/issues
+POM_LICENSE_DIST=repo
+POM_DEVELOPER_ID=facebook
+POM_DEVELOPER_NAME=facebook
+
+GRADLE_BINTRAY_PLUGIN_VERSION=1.8.0
+GRADLE_VERSIONS_PLUGIN_VERSION=0.15.0
+ANDROID_MAVEN_GRADLE_PLUGIN_VERSION=2.1

android/gradle/android_maven_install.gradle

@@ -0,0 +1,32 @@
+apply plugin: 'com.github.dcendents.android-maven'
+
+version = VERSION_NAME
+group = GROUP
+project.archivesBaseName = POM_ARTIFACT_ID
+
+install {
+    repositories.mavenInstaller {
+        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
+                }
+            }
+        }
+    }
+}

android/gradle/android_tasks.gradle

@@ -0,0 +1,95 @@
+
+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) {
+            archiveClassifier.set('javadoc')
+            from androidJavadoc.destinationDir
+        }
+
+        task androidSourcesJar(type: Jar) {
+            archiveClassifier.set('sources')
+            from android.sourceSets.main.java.srcDirs
+        }
+
+        android.libraryVariants.all { variant ->
+            def name = variant.name.capitalize()
+            task "jar${name}"(type: Jar, dependsOn: variant.javaCompileProvider) {
+                from variant.javaCompileProvider.get().destinationDir
+            }
+
+            androidJavadoc.doFirst {
+                classpath += files(android.bootClasspath)
+                classpath += files(variant.javaCompileProvider.get().classpath.files)
+                // This is generated by `assembleDebug` and holds the JARs generated by the APT.
+                classpath += fileTree(dir: "$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) {
+            archiveClassifier.set('javadoc')
+            from javadoc.destinationDir
+        }
+
+        task sourcesJar(type: Jar, dependsOn: classes) {
+            archiveClassifier.set('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()
+}

android/gradle/bintray.gradle

@@ -0,0 +1,64 @@
+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()
+    override = false
+    configurations = ['archives']
+    pkg {
+        repo = bintrayRepo
+        userOrg = bintrayUserOrg
+        name = bintrayName
+        desc = bintrayDescription
+        websiteUrl = projectUrl
+        issueTrackerUrl = issuesUrl
+        vcsUrl = scmUrl
+        licenses = [ POM_LICENSE_NAME ]
+        dryRun = dryRunOnly()
+        override = false
+        publish = true
+        publicDownloadNumbers = true
+        version {
+            name = versionName
+            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
+            }
+        }
+    }
+}

android/gradle/gradle_maven_push.gradle

@@ -0,0 +1,81 @@
+apply plugin: 'signing'
+
+version = VERSION_NAME
+group = MAVEN_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 = MAVEN_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
+  }
+
+}

android/gradle/release.gradle

@@ -0,0 +1,5 @@
+apply from: rootProject.file('gradle/android_tasks.gradle')
+
+apply from: rootProject.file('gradle/release_bintray.gradle')
+
+apply from: rootProject.file('gradle/gradle_maven_push.gradle')

android/gradle/release_bintray.gradle

@@ -0,0 +1,32 @@
+ext {
+    bintrayRepo = 'maven'
+    bintrayUserOrg = 'facebook'
+    bintrayName = "${GROUP}:${POM_ARTIFACT_ID}"
+    bintrayDescription = POM_DESCRIPTION
+    projectUrl = POM_URL
+    issuesUrl = POM_ISSUES_URL
+    scmUrl = POM_SCM_URL
+    scmConnection = POM_SCM_CONNECTION
+    scmDeveloperConnection = POM_SCM_DEV_CONNECTION
+
+    publishedGroupId = GROUP
+    libraryName = 'pytorch_android'
+    artifact = 'pytorch_android'
+
+    developerId = POM_DEVELOPER_ID
+    developerName = POM_DEVELOPER_NAME
+
+    versionName = VERSION_NAME
+
+    projectLicenses = {
+        license = {
+            name = POM_LICENSE_NAME
+            url = POM_LICENSE_URL
+            distribution = POM_LICENSE_DIST
+        }
+    }
+}
+
+apply from: rootProject.file('gradle/android_maven_install.gradle')
+
+apply from: rootProject.file('gradle/bintray.gradle')

android/libs/fbjni_local/build.gradle

@@ -0,0 +1,33 @@
+apply plugin: 'com.android.library'
+apply plugin: 'maven'
+
+android {
+    compileSdkVersion rootProject.compileSdkVersion
+    buildToolsVersion rootProject.buildToolsVersion
+
+    defaultConfig {
+        minSdkVersion rootProject.minSdkVersion
+        targetSdkVersion rootProject.targetSdkVersion
+
+        sourceSets {
+            main {
+                manifest.srcFile '../fbjni/ApplicationManifest.xml'
+                java {
+                    srcDir '../fbjni/java'
+                }
+            }
+        }
+    }
+
+    externalNativeBuild {
+        cmake {
+            path "../fbjni/CMakeLists.txt"
+        }
+    }
+}
+
+dependencies {
+    compileOnly 'com.google.code.findbugs:jsr305:3.0.1'
+}
+
+apply from: rootProject.file('gradle/release.gradle')

android/libs/fbjni_local/gradle.properties

@@ -0,0 +1,4 @@
+POM_NAME=pytorch_android_fbjni
+POM_DESCRIPTION=pytorch_android_fbjni
+POM_ARTIFACT_ID=pytorch_android_fbjni
+POM_PACKAGING=aar

android/pytorch_android/build.gradle

@@ -1,4 +1,5 @@
 apply plugin: 'com.android.library'
+apply plugin: 'maven'
 
 android {
     compileSdkVersion rootProject.compileSdkVersion
@@ -7,8 +8,8 @@ android {
     defaultConfig {
         minSdkVersion rootProject.minSdkVersion
         targetSdkVersion rootProject.targetSdkVersion
-        versionCode 1
-        versionName "1.0"
+        versionCode 0
+        versionName "0.1"
 
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
         ndk {
@@ -40,7 +41,7 @@ android {
 }
 
 dependencies {
-    implementation project(':fbjni')
+    api project(':fbjni')
 
     implementation 'com.android.support:appcompat-v7:28.0.0'
 
@@ -53,3 +54,13 @@ dependencies {
     androidTestImplementation 'androidx.test:rules:' + rootProject.rulesVersion
     androidTestImplementation 'androidx.test:runner:' + rootProject.runnerVersion
 }
+
+apply from: rootProject.file('gradle/release.gradle')
+
+task sourcesJar(type: Jar) {
+    from android.sourceSets.main.java.srcDirs
+    archiveClassifier.set('sources')
+}
+
+artifacts.add('archives', sourcesJar)
+

android/pytorch_android/gradle.properties

@@ -0,0 +1,4 @@
+POM_NAME=pytorch_android pytorch android api
+POM_DESCRIPTION=pytorch_android pytorch android api
+POM_ARTIFACT_ID=pytorch_android
+POM_PACKAGING=aar

android/pytorch_android_torchvision/build.gradle

@@ -1,4 +1,5 @@
 apply plugin: 'com.android.library'
+apply plugin: 'maven'
 
 android {
     compileSdkVersion rootProject.compileSdkVersion
@@ -8,8 +9,8 @@ android {
     defaultConfig {
         minSdkVersion rootProject.minSdkVersion
         targetSdkVersion rootProject.targetSdkVersion
-        versionCode 1
-        versionName "0.0"
+        versionCode 0
+        versionName "0.1"
 
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
 
@@ -43,3 +44,12 @@ dependencies {
     androidTestImplementation 'androidx.test:rules:' + rootProject.rulesVersion
     androidTestImplementation 'androidx.test:runner:' + rootProject.runnerVersion
 }
+
+apply from: rootProject.file('gradle/release.gradle')
+
+task sourcesJar(type: Jar) {
+    from android.sourceSets.main.java.srcDirs
+    archiveClassifier.set('sources')
+}
+
+artifacts.add('archives', sourcesJar)

android/pytorch_android_torchvision/gradle.properties

@@ -0,0 +1,4 @@
+POM_NAME=pytorch_android_torchvision
+POM_DESCRIPTION=pytorch_android_torchvision
+POM_ARTIFACT_ID=pytorch_android_torchvision
+POM_PACKAGING=aar

android/settings.gradle

@@ -1,4 +1,4 @@
 include ':app', ':pytorch_android', ':fbjni', ':pytorch_android_torchvision'
 
-project(':fbjni').projectDir = file('libs/fbjni')
+project(':fbjni').projectDir = file('libs/fbjni_local')
 project(':pytorch_android_torchvision').projectDir = file('pytorch_android_torchvision')