Rename release_aar.py and modify it for validation of aar file.

As announced in the google groups [1], the pre-built Android aar is no
longer distributed and last update was August 2020. [2]
So we can remove the code that uploads aar to bintray in release_aar.py.

Still, the ability to create an Android aar and use it in a gradle
project (examples/aarproject) is useful. It can also be used to validate
aar by running PeerConnectionClientTest from examples/androidtests.

So I renamed release_aar.py to test_aar.py and make it working without
releasing the aar to an external hosting server.
This makes it easy to verify further changes to the aar.

[1] https://groups.google.com/g/discuss-webrtc/c/Ozvbd0p7Q1Y/m/TtQyRI1KAgAJ
[2] https://mvnrepository.com/artifact/org.webrtc/google-webrtc?repo=bt-google-webrtc

Bug: webrtc:11962
Change-Id: Ibe066a3a770569924e3b57805986808e1dd19df6
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/220622
Commit-Queue: Byoungchan Lee <daniel.l@hpcnt.com>
Reviewed-by: Xavier Lepaul‎ <xalep@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#34540}
diff --git a/examples/aarproject/app/build.gradle b/examples/aarproject/app/build.gradle
index b4f2acd..77dc370 100644
--- a/examples/aarproject/app/build.gradle
+++ b/examples/aarproject/app/build.gradle
@@ -42,10 +42,11 @@
 }
 
 dependencies {
-    implementation fileTree(dir: 'libs', include: ['*.jar'])
+    if (project.hasProperty('aarDir')) {
+        implementation fileTree(dir: project.aarDir, include: ['google-webrtc-*.aar'])
+    }
     implementation fileTree(dir: '../../androidapp/third_party/autobanh/lib', include: ['autobanh.jar'])
-    implementation 'com.android.support:appcompat-v7:26.1.0'
-    implementation 'org.webrtc:google-webrtc:1.0.+'
+    implementation 'com.android.support:support-annotations:26.1.0'
     testImplementation 'junit:junit:4.12'
     androidTestImplementation 'com.android.support.test:runner:1.0.1'
     androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
diff --git a/tools_webrtc/android/release_aar.py b/tools_webrtc/android/release_aar.py
deleted file mode 100644
index bc7f471..0000000
--- a/tools_webrtc/android/release_aar.py
+++ /dev/null
@@ -1,307 +0,0 @@
-#!/usr/bin/env python
-
-# Copyright (c) 2017 The WebRTC project authors. All Rights Reserved.
-#
-# Use of this source code is governed by a BSD-style license
-# that can be found in the LICENSE file in the root of the source
-# tree. An additional intellectual property rights grant can be found
-# in the file PATENTS.  All contributing project authors may
-# be found in the AUTHORS file in the root of the source tree.
-"""Script for publishing WebRTC AAR on Bintray.
-
-Set BINTRAY_USER and BINTRAY_API_KEY environment variables before running
-this script for authentication.
-"""
-
-import argparse
-import json
-import logging
-import os
-import re
-import shutil
-import subprocess
-import sys
-import tempfile
-import time
-
-SCRIPT_DIR = os.path.dirname(os.path.realpath(sys.argv[0]))
-CHECKOUT_ROOT = os.path.abspath(os.path.join(SCRIPT_DIR, os.pardir, os.pardir))
-
-sys.path.append(os.path.join(CHECKOUT_ROOT, 'third_party'))
-import requests
-import jinja2
-
-sys.path.append(os.path.join(CHECKOUT_ROOT, 'tools_webrtc'))
-from android.build_aar import BuildAar
-
-ARCHS = ['armeabi-v7a', 'arm64-v8a', 'x86', 'x86_64']
-MAVEN_REPOSITORY = 'https://google.bintray.com/webrtc'
-API = 'https://api.bintray.com'
-PACKAGE_PATH = 'google/webrtc/google-webrtc'
-CONTENT_API = API + '/content/' + PACKAGE_PATH
-PACKAGES_API = API + '/packages/' + PACKAGE_PATH
-GROUP_ID = 'org/webrtc'
-ARTIFACT_ID = 'google-webrtc'
-COMMIT_POSITION_REGEX = r'^Cr-Commit-Position: refs/heads/master@{#(\d+)}$'
-API_TIMEOUT_SECONDS = 10.0
-UPLOAD_TRIES = 3
-# The sleep time is increased exponentially.
-UPLOAD_RETRY_BASE_SLEEP_SECONDS = 2.0
-GRADLEW_BIN = os.path.join(CHECKOUT_ROOT,
-                           'examples/androidtests/third_party/gradle/gradlew')
-ADB_BIN = os.path.join(CHECKOUT_ROOT,
-                       'third_party/android_sdk/public/platform-tools/adb')
-AAR_PROJECT_DIR = os.path.join(CHECKOUT_ROOT, 'examples/aarproject')
-AAR_PROJECT_GRADLE = os.path.join(AAR_PROJECT_DIR, 'build.gradle')
-AAR_PROJECT_APP_GRADLE = os.path.join(AAR_PROJECT_DIR, 'app', 'build.gradle')
-AAR_PROJECT_DEPENDENCY = "implementation 'org.webrtc:google-webrtc:1.0.+'"
-AAR_PROJECT_VERSION_DEPENDENCY = "implementation 'org.webrtc:google-webrtc:%s'"
-
-
-def _ParseArgs():
-    parser = argparse.ArgumentParser(description='Releases WebRTC on Bintray.')
-    parser.add_argument('--use-goma',
-                        action='store_true',
-                        default=False,
-                        help='Use goma.')
-    parser.add_argument('--skip-tests',
-                        action='store_true',
-                        default=False,
-                        help='Skips running the tests.')
-    parser.add_argument(
-        '--publish',
-        action='store_true',
-        default=False,
-        help='Automatically publishes the library if the tests pass.')
-    parser.add_argument(
-        '--build-dir',
-        default=None,
-        help='Temporary directory to store the build files. If not specified, '
-        'a new directory will be created.')
-    parser.add_argument('--verbose',
-                        action='store_true',
-                        default=False,
-                        help='Debug logging.')
-    return parser.parse_args()
-
-
-def _GetCommitHash():
-    commit_hash = subprocess.check_output(['git', 'rev-parse', 'HEAD'],
-                                          cwd=CHECKOUT_ROOT).strip()
-    return commit_hash
-
-
-def _GetCommitPos():
-    commit_message = subprocess.check_output(
-        ['git', 'rev-list', '--format=%B', '--max-count=1', 'HEAD'],
-        cwd=CHECKOUT_ROOT)
-    commit_pos_match = re.search(COMMIT_POSITION_REGEX, commit_message,
-                                 re.MULTILINE)
-    if not commit_pos_match:
-        raise Exception('Commit position not found in the commit message: %s' %
-                        commit_message)
-    return commit_pos_match.group(1)
-
-
-def _UploadFile(user, password, filename, version, target_file):
-    # URL is of format:
-    # <repository_api>/<version>/<group_id>/<artifact_id>/<version>/<target_file>
-    # Example:
-    # https://api.bintray.com/content/google/webrtc/google-webrtc/1.0.19742/org/webrtc/google-webrtc/1.0.19742/google-webrtc-1.0.19742.aar
-
-    target_dir = version + '/' + GROUP_ID + '/' + ARTIFACT_ID + '/' + version
-    target_path = target_dir + '/' + target_file
-    url = CONTENT_API + '/' + target_path
-
-    logging.info('Uploading %s to %s', filename, url)
-    with open(filename) as fh:
-        file_data = fh.read()
-
-    for attempt in xrange(UPLOAD_TRIES):
-        try:
-            response = requests.put(url,
-                                    data=file_data,
-                                    auth=(user, password),
-                                    timeout=API_TIMEOUT_SECONDS)
-            break
-        except requests.exceptions.Timeout as e:
-            logging.warning('Timeout while uploading: %s', e)
-            time.sleep(UPLOAD_RETRY_BASE_SLEEP_SECONDS**attempt)
-    else:
-        raise Exception('Failed to upload %s' % filename)
-
-    if not response.ok:
-        raise Exception('Failed to upload %s. Response: %s' %
-                        (filename, response))
-    logging.info('Uploaded %s: %s', filename, response)
-
-
-def _GeneratePom(target_file, version, commit):
-    env = jinja2.Environment(loader=jinja2.PackageLoader('release_aar'), )
-    template = env.get_template('pom.jinja')
-    pom = template.render(version=version, commit=commit)
-    with open(target_file, 'w') as fh:
-        fh.write(pom)
-
-
-def _TestAAR(tmp_dir, username, password, version):
-    """Runs AppRTCMobile tests using the AAR. Returns true if the tests pass."""
-    logging.info('Testing library.')
-    env = jinja2.Environment(loader=jinja2.PackageLoader('release_aar'), )
-
-    gradle_backup = os.path.join(tmp_dir, 'build.gradle.backup')
-    app_gradle_backup = os.path.join(tmp_dir, 'app-build.gradle.backup')
-
-    # Make backup copies of the project files before modifying them.
-    shutil.copy2(AAR_PROJECT_GRADLE, gradle_backup)
-    shutil.copy2(AAR_PROJECT_APP_GRADLE, app_gradle_backup)
-
-    try:
-        maven_repository_template = env.get_template('maven-repository.jinja')
-        maven_repository = maven_repository_template.render(
-            url=MAVEN_REPOSITORY, username=username, password=password)
-
-        # Append Maven repository to build file to download unpublished files.
-        with open(AAR_PROJECT_GRADLE, 'a') as gradle_file:
-            gradle_file.write(maven_repository)
-
-        # Read app build file.
-        with open(AAR_PROJECT_APP_GRADLE, 'r') as gradle_app_file:
-            gradle_app = gradle_app_file.read()
-
-        if AAR_PROJECT_DEPENDENCY not in gradle_app:
-            raise Exception('%s not found in the build file.' %
-                            AAR_PROJECT_DEPENDENCY)
-        # Set version to the version to be tested.
-        target_dependency = AAR_PROJECT_VERSION_DEPENDENCY % version
-        gradle_app = gradle_app.replace(AAR_PROJECT_DEPENDENCY,
-                                        target_dependency)
-
-        # Write back.
-        with open(AAR_PROJECT_APP_GRADLE, 'w') as gradle_app_file:
-            gradle_app_file.write(gradle_app)
-
-        # Uninstall any existing version of AppRTCMobile.
-        logging.info(
-            'Uninstalling previous AppRTCMobile versions. It is okay for '
-            'these commands to fail if AppRTCMobile is not installed.')
-        subprocess.call([ADB_BIN, 'uninstall', 'org.appspot.apprtc'])
-        subprocess.call([ADB_BIN, 'uninstall', 'org.appspot.apprtc.test'])
-
-        # Run tests.
-        try:
-            # First clean the project.
-            subprocess.check_call([GRADLEW_BIN, 'clean'], cwd=AAR_PROJECT_DIR)
-            # Then run the tests.
-            subprocess.check_call([GRADLEW_BIN, 'connectedDebugAndroidTest'],
-                                  cwd=AAR_PROJECT_DIR)
-        except subprocess.CalledProcessError:
-            logging.exception('Test failure.')
-            return False  # Clean or tests failed
-
-        return True  # Tests pass
-    finally:
-        # Restore backups.
-        shutil.copy2(gradle_backup, AAR_PROJECT_GRADLE)
-        shutil.copy2(app_gradle_backup, AAR_PROJECT_APP_GRADLE)
-
-
-def _PublishAAR(user, password, version, additional_args):
-    args = {
-        'publish_wait_for_secs': 0  # Publish asynchronously.
-    }
-    args.update(additional_args)
-
-    url = CONTENT_API + '/' + version + '/publish'
-    response = requests.post(url,
-                             data=json.dumps(args),
-                             auth=(user, password),
-                             timeout=API_TIMEOUT_SECONDS)
-
-    if not response.ok:
-        raise Exception('Failed to publish. Response: %s' % response)
-
-
-def _DeleteUnpublishedVersion(user, password, version):
-    url = PACKAGES_API + '/versions/' + version
-    response = requests.get(url,
-                            auth=(user, password),
-                            timeout=API_TIMEOUT_SECONDS)
-    if not response.ok:
-        raise Exception('Failed to get version info. Response: %s' % response)
-
-    version_info = json.loads(response.content)
-    if version_info['published']:
-        logging.info('Version has already been published, not deleting.')
-        return
-
-    logging.info('Deleting unpublished version.')
-    response = requests.delete(url,
-                               auth=(user, password),
-                               timeout=API_TIMEOUT_SECONDS)
-    if not response.ok:
-        raise Exception('Failed to delete version. Response: %s' % response)
-
-
-def ReleaseAar(use_goma, skip_tests, publish, build_dir):
-    version = '1.0.' + _GetCommitPos()
-    commit = _GetCommitHash()
-    logging.info('Releasing AAR version %s with hash %s', version, commit)
-
-    user = os.environ.get('BINTRAY_USER', None)
-    api_key = os.environ.get('BINTRAY_API_KEY', None)
-    if not user or not api_key:
-        raise Exception(
-            'Environment variables BINTRAY_USER and BINTRAY_API_KEY '
-            'must be defined.')
-
-    # If build directory is not specified, create a temporary directory.
-    use_tmp_dir = not build_dir
-    if use_tmp_dir:
-        build_dir = tempfile.mkdtemp()
-
-    try:
-        base_name = ARTIFACT_ID + '-' + version
-        aar_file = os.path.join(build_dir, base_name + '.aar')
-        third_party_licenses_file = os.path.join(build_dir, 'LICENSE.md')
-        pom_file = os.path.join(build_dir, base_name + '.pom')
-
-        logging.info('Building at %s', build_dir)
-        BuildAar(ARCHS,
-                 aar_file,
-                 use_goma=use_goma,
-                 ext_build_dir=os.path.join(build_dir, 'aar-build'))
-        _GeneratePom(pom_file, version, commit)
-
-        _UploadFile(user, api_key, aar_file, version, base_name + '.aar')
-        _UploadFile(user, api_key, third_party_licenses_file, version,
-                    'THIRD_PARTY_LICENSES.md')
-        _UploadFile(user, api_key, pom_file, version, base_name + '.pom')
-
-        tests_pass = skip_tests or _TestAAR(build_dir, user, api_key, version)
-        if not tests_pass:
-            logging.info('Discarding library.')
-            _PublishAAR(user, api_key, version, {'discard': True})
-            _DeleteUnpublishedVersion(user, api_key, version)
-            raise Exception('Test failure. Discarded library.')
-
-        if publish:
-            logging.info('Publishing library.')
-            _PublishAAR(user, api_key, version, {})
-        else:
-            logging.info(
-                'Note: The library has not not been published automatically.'
-                ' Please do so manually if desired.')
-    finally:
-        if use_tmp_dir:
-            shutil.rmtree(build_dir, True)
-
-
-def main():
-    args = _ParseArgs()
-    logging.basicConfig(level=logging.DEBUG if args.verbose else logging.INFO)
-    ReleaseAar(args.use_goma, args.skip_tests, args.publish, args.build_dir)
-
-
-if __name__ == '__main__':
-    sys.exit(main())
diff --git a/tools_webrtc/android/test_aar.py b/tools_webrtc/android/test_aar.py
new file mode 100755
index 0000000..cb8ad12
--- /dev/null
+++ b/tools_webrtc/android/test_aar.py
@@ -0,0 +1,145 @@
+#!/usr/bin/env python3
+
+# Copyright (c) 2017 The WebRTC project authors. All Rights Reserved.
+#
+# Use of this source code is governed by a BSD-style license
+# that can be found in the LICENSE file in the root of the source
+# tree. An additional intellectual property rights grant can be found
+# in the file PATENTS.  All contributing project authors may
+# be found in the AUTHORS file in the root of the source tree.
+"""Script for building and testing WebRTC AAR.
+"""
+
+import argparse
+import logging
+import os
+import re
+import shutil
+import subprocess
+import sys
+import tempfile
+
+SCRIPT_DIR = os.path.dirname(os.path.realpath(sys.argv[0]))
+CHECKOUT_ROOT = os.path.abspath(os.path.join(SCRIPT_DIR, os.pardir, os.pardir))
+
+sys.path.append(os.path.join(CHECKOUT_ROOT, 'tools_webrtc'))
+from android.build_aar import BuildAar
+
+ARCHS = ['armeabi-v7a', 'arm64-v8a', 'x86', 'x86_64']
+ARTIFACT_ID = 'google-webrtc'
+COMMIT_POSITION_REGEX = r'^Cr-Commit-Position: refs/heads/master@{#(\d+)}$'
+GRADLEW_BIN = os.path.join(CHECKOUT_ROOT,
+                           'examples/androidtests/third_party/gradle/gradlew')
+ADB_BIN = os.path.join(CHECKOUT_ROOT,
+                       'third_party/android_sdk/public/platform-tools/adb')
+AAR_PROJECT_DIR = os.path.join(CHECKOUT_ROOT, 'examples/aarproject')
+
+
+def _ParseArgs():
+    parser = argparse.ArgumentParser(description='Releases WebRTC on Bintray.')
+    parser.add_argument('--use-goma',
+                        action='store_true',
+                        default=False,
+                        help='Use goma.')
+    parser.add_argument('--skip-tests',
+                        action='store_true',
+                        default=False,
+                        help='Skips running the tests.')
+    parser.add_argument(
+        '--build-dir',
+        default=None,
+        help='Temporary directory to store the build files. If not specified, '
+        'a new directory will be created.')
+    parser.add_argument('--verbose',
+                        action='store_true',
+                        default=False,
+                        help='Debug logging.')
+    return parser.parse_args()
+
+
+def _GetCommitHash():
+    commit_hash = subprocess.check_output(
+      ['git', 'rev-parse', 'HEAD'], cwd=CHECKOUT_ROOT).decode('UTF-8').strip()
+    return commit_hash
+
+
+def _GetCommitPos():
+    commit_message = subprocess.check_output(
+        ['git', 'rev-list', '--format=%B', '--max-count=1', 'HEAD'],
+        cwd=CHECKOUT_ROOT).decode('UTF-8')
+    commit_pos_match = re.search(COMMIT_POSITION_REGEX, commit_message,
+                                 re.MULTILINE)
+    if not commit_pos_match:
+        raise Exception('Commit position not found in the commit message: %s' %
+                        commit_message)
+    return commit_pos_match.group(1)
+
+
+def _TestAAR(build_dir):
+    """Runs AppRTCMobile tests using the AAR. Returns true if the tests pass."""
+    logging.info('Testing library.')
+
+    # Uninstall any existing version of AppRTCMobile.
+    logging.info(
+        'Uninstalling previous AppRTCMobile versions. It is okay for '
+        'these commands to fail if AppRTCMobile is not installed.')
+    subprocess.call([ADB_BIN, 'uninstall', 'org.appspot.apprtc'])
+    subprocess.call([ADB_BIN, 'uninstall', 'org.appspot.apprtc.test'])
+
+    # Run tests.
+    try:
+        # First clean the project.
+        subprocess.check_call([GRADLEW_BIN, 'clean'], cwd=AAR_PROJECT_DIR)
+        # Then run the tests.
+        subprocess.check_call([
+          GRADLEW_BIN,
+          'connectedDebugAndroidTest',
+          '-PaarDir=' + os.path.abspath(build_dir)],
+                              cwd=AAR_PROJECT_DIR)
+    except subprocess.CalledProcessError:
+        logging.exception('Test failure.')
+        return False  # Clean or tests failed
+
+    return True  # Tests pass
+
+
+def BuildAndTestAar(use_goma, skip_tests, build_dir):
+    version = '1.0.' + _GetCommitPos()
+    commit = _GetCommitHash()
+    logging.info(
+      'Building and Testing AAR version %s with hash %s', version, commit)
+
+    # If build directory is not specified, create a temporary directory.
+    use_tmp_dir = not build_dir
+    if use_tmp_dir:
+        build_dir = tempfile.mkdtemp()
+
+    try:
+        base_name = ARTIFACT_ID + '-' + version
+        aar_file = os.path.join(build_dir, base_name + '.aar')
+
+        logging.info('Building at %s', build_dir)
+        BuildAar(ARCHS,
+                 aar_file,
+                 use_goma=use_goma,
+                 ext_build_dir=os.path.join(build_dir, 'aar-build'))
+
+        tests_pass = skip_tests or _TestAAR(build_dir)
+        if not tests_pass:
+            raise Exception('Test failure.')
+
+        logging.info('Test success.')
+
+    finally:
+        if use_tmp_dir:
+            shutil.rmtree(build_dir, True)
+
+
+def main():
+    args = _ParseArgs()
+    logging.basicConfig(level=logging.DEBUG if args.verbose else logging.INFO)
+    BuildAndTestAar(args.use_goma, args.skip_tests, args.build_dir)
+
+
+if __name__ == '__main__':
+    sys.exit(main())