| #!/usr/bin/env python3 |
| # |
| # Copyright (c) 2013 The Chromium Authors. All rights reserved. |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| """Runs Android's lint tool.""" |
| |
| from __future__ import print_function |
| |
| import argparse |
| import functools |
| import logging |
| import os |
| import re |
| import shutil |
| import sys |
| import time |
| import traceback |
| from xml.dom import minidom |
| from xml.etree import ElementTree |
| |
| from util import build_utils |
| from util import manifest_utils |
| from util import server_utils |
| |
| _LINT_MD_URL = 'https://chromium.googlesource.com/chromium/src/+/master/build/android/docs/lint.md' # pylint: disable=line-too-long |
| |
| # These checks are not useful for chromium. |
| _DISABLED_ALWAYS = [ |
| "AppCompatResource", # Lint does not correctly detect our appcompat lib. |
| "Assert", # R8 --force-enable-assertions is used to enable java asserts. |
| "InflateParams", # Null is ok when inflating views for dialogs. |
| "InlinedApi", # Constants are copied so they are always available. |
| "LintBaseline", # Don't warn about using baseline.xml files. |
| "MissingApplicationIcon", # False positive for non-production targets. |
| "SwitchIntDef", # Many C++ enums are not used at all in java. |
| "UniqueConstants", # Chromium enums allow aliases. |
| "UnusedAttribute", # Chromium apks have various minSdkVersion values. |
| "ObsoleteLintCustomCheck", # We have no control over custom lint checks. |
| ] |
| |
| # These checks are not useful for test targets and adds an unnecessary burden |
| # to suppress them. |
| _DISABLED_FOR_TESTS = [ |
| # We should not require test strings.xml files to explicitly add |
| # translatable=false since they are not translated and not used in |
| # production. |
| "MissingTranslation", |
| # Test strings.xml files often have simple names and are not translatable, |
| # so it may conflict with a production string and cause this error. |
| "Untranslatable", |
| # Test targets often use the same strings target and resources target as the |
| # production targets but may not use all of them. |
| "UnusedResources", |
| # TODO(wnwen): Turn this back on since to crash it would require running on |
| # a device with all the various minSdkVersions. |
| # Real NewApi violations crash the app, so the only ones that lint catches |
| # but tests still succeed are false positives. |
| "NewApi", |
| # Tests should be allowed to access these methods/classes. |
| "VisibleForTests", |
| ] |
| |
| _RES_ZIP_DIR = 'RESZIPS' |
| _SRCJAR_DIR = 'SRCJARS' |
| _AAR_DIR = 'AARS' |
| |
| |
| def _SrcRelative(path): |
| """Returns relative path to top-level src dir.""" |
| return os.path.relpath(path, build_utils.DIR_SOURCE_ROOT) |
| |
| |
| def _GenerateProjectFile(android_manifest, |
| android_sdk_root, |
| cache_dir, |
| sources=None, |
| classpath=None, |
| srcjar_sources=None, |
| resource_sources=None, |
| custom_lint_jars=None, |
| custom_annotation_zips=None, |
| android_sdk_version=None): |
| project = ElementTree.Element('project') |
| root = ElementTree.SubElement(project, 'root') |
| # Run lint from output directory: crbug.com/1115594 |
| root.set('dir', os.getcwd()) |
| sdk = ElementTree.SubElement(project, 'sdk') |
| # Lint requires that the sdk path be an absolute path. |
| sdk.set('dir', os.path.abspath(android_sdk_root)) |
| cache = ElementTree.SubElement(project, 'cache') |
| cache.set('dir', cache_dir) |
| main_module = ElementTree.SubElement(project, 'module') |
| main_module.set('name', 'main') |
| main_module.set('android', 'true') |
| main_module.set('library', 'false') |
| if android_sdk_version: |
| main_module.set('compile_sdk_version', android_sdk_version) |
| manifest = ElementTree.SubElement(main_module, 'manifest') |
| manifest.set('file', android_manifest) |
| if srcjar_sources: |
| for srcjar_file in srcjar_sources: |
| src = ElementTree.SubElement(main_module, 'src') |
| src.set('file', srcjar_file) |
| if sources: |
| for source in sources: |
| src = ElementTree.SubElement(main_module, 'src') |
| src.set('file', source) |
| if classpath: |
| for file_path in classpath: |
| classpath_element = ElementTree.SubElement(main_module, 'classpath') |
| classpath_element.set('file', file_path) |
| if resource_sources: |
| for resource_file in resource_sources: |
| resource = ElementTree.SubElement(main_module, 'resource') |
| resource.set('file', resource_file) |
| if custom_lint_jars: |
| for lint_jar in custom_lint_jars: |
| lint = ElementTree.SubElement(main_module, 'lint-checks') |
| lint.set('file', lint_jar) |
| if custom_annotation_zips: |
| for annotation_zip in custom_annotation_zips: |
| annotation = ElementTree.SubElement(main_module, 'annotations') |
| annotation.set('file', annotation_zip) |
| return project |
| |
| |
| def _RetrieveBackportedMethods(backported_methods_path): |
| with open(backported_methods_path) as f: |
| methods = f.read().splitlines() |
| # Methods look like: |
| # java/util/Set#of(Ljava/lang/Object;)Ljava/util/Set; |
| # But error message looks like: |
| # Call requires API level R (current min is 21): java.util.Set#of [NewApi] |
| methods = (m.replace('/', '\\.') for m in methods) |
| methods = (m[:m.index('(')] for m in methods) |
| return sorted(set(methods)) |
| |
| |
| def _GenerateConfigXmlTree(orig_config_path, backported_methods): |
| if orig_config_path: |
| root_node = ElementTree.parse(orig_config_path).getroot() |
| else: |
| root_node = ElementTree.fromstring('<lint/>') |
| |
| issue_node = ElementTree.SubElement(root_node, 'issue') |
| issue_node.attrib['id'] = 'NewApi' |
| ignore_node = ElementTree.SubElement(issue_node, 'ignore') |
| ignore_node.attrib['regexp'] = '|'.join(backported_methods) |
| return root_node |
| |
| |
| def _GenerateAndroidManifest(original_manifest_path, extra_manifest_paths, |
| min_sdk_version, android_sdk_version): |
| # Set minSdkVersion in the manifest to the correct value. |
| doc, manifest, app_node = manifest_utils.ParseManifest(original_manifest_path) |
| |
| # TODO(crbug.com/1126301): Should this be done using manifest merging? |
| # Add anything in the application node of the extra manifests to the main |
| # manifest to prevent unused resource errors. |
| for path in extra_manifest_paths: |
| _, _, extra_app_node = manifest_utils.ParseManifest(path) |
| for node in extra_app_node: |
| app_node.append(node) |
| |
| if app_node.find( |
| '{%s}allowBackup' % manifest_utils.ANDROID_NAMESPACE) is None: |
| # Assume no backup is intended, appeases AllowBackup lint check and keeping |
| # it working for manifests that do define android:allowBackup. |
| app_node.set('{%s}allowBackup' % manifest_utils.ANDROID_NAMESPACE, 'false') |
| |
| uses_sdk = manifest.find('./uses-sdk') |
| if uses_sdk is None: |
| uses_sdk = ElementTree.Element('uses-sdk') |
| manifest.insert(0, uses_sdk) |
| uses_sdk.set('{%s}minSdkVersion' % manifest_utils.ANDROID_NAMESPACE, |
| min_sdk_version) |
| uses_sdk.set('{%s}targetSdkVersion' % manifest_utils.ANDROID_NAMESPACE, |
| android_sdk_version) |
| return doc |
| |
| |
| def _WriteXmlFile(root, path): |
| logging.info('Writing xml file %s', path) |
| build_utils.MakeDirectory(os.path.dirname(path)) |
| with build_utils.AtomicOutput(path) as f: |
| # Although we can write it just with ElementTree.tostring, using minidom |
| # makes it a lot easier to read as a human (also on code search). |
| f.write( |
| minidom.parseString(ElementTree.tostring( |
| root, encoding='utf-8')).toprettyxml(indent=' ').encode('utf-8')) |
| |
| |
| def _RunLint(lint_binary_path, |
| backported_methods_path, |
| config_path, |
| manifest_path, |
| extra_manifest_paths, |
| sources, |
| classpath, |
| cache_dir, |
| android_sdk_version, |
| aars, |
| srcjars, |
| min_sdk_version, |
| resource_sources, |
| resource_zips, |
| android_sdk_root, |
| lint_gen_dir, |
| baseline, |
| testonly_target=False, |
| warnings_as_errors=False): |
| logging.info('Lint starting') |
| |
| cmd = [ |
| lint_binary_path, |
| '--quiet', # Silences lint's "." progress updates. |
| '--disable', |
| ','.join(_DISABLED_ALWAYS), |
| ] |
| if baseline: |
| cmd.extend(['--baseline', baseline]) |
| if testonly_target: |
| cmd.extend(['--disable', ','.join(_DISABLED_FOR_TESTS)]) |
| |
| if not manifest_path: |
| manifest_path = os.path.join(build_utils.DIR_SOURCE_ROOT, 'build', |
| 'android', 'AndroidManifest.xml') |
| |
| logging.info('Generating config.xml') |
| backported_methods = _RetrieveBackportedMethods(backported_methods_path) |
| config_xml_node = _GenerateConfigXmlTree(config_path, backported_methods) |
| generated_config_path = os.path.join(lint_gen_dir, 'config.xml') |
| _WriteXmlFile(config_xml_node, generated_config_path) |
| cmd.extend(['--config', generated_config_path]) |
| |
| logging.info('Generating Android manifest file') |
| android_manifest_tree = _GenerateAndroidManifest(manifest_path, |
| extra_manifest_paths, |
| min_sdk_version, |
| android_sdk_version) |
| # Include the rebased manifest_path in the lint generated path so that it is |
| # clear in error messages where the original AndroidManifest.xml came from. |
| lint_android_manifest_path = os.path.join(lint_gen_dir, manifest_path) |
| _WriteXmlFile(android_manifest_tree.getroot(), lint_android_manifest_path) |
| |
| resource_root_dir = os.path.join(lint_gen_dir, _RES_ZIP_DIR) |
| # These are zip files with generated resources (e. g. strings from GRD). |
| logging.info('Extracting resource zips') |
| for resource_zip in resource_zips: |
| # Use a consistent root and name rather than a temporary file so that |
| # suppressions can be local to the lint target and the resource target. |
| resource_dir = os.path.join(resource_root_dir, resource_zip) |
| shutil.rmtree(resource_dir, True) |
| os.makedirs(resource_dir) |
| resource_sources.extend( |
| build_utils.ExtractAll(resource_zip, path=resource_dir)) |
| |
| logging.info('Extracting aars') |
| aar_root_dir = os.path.join(lint_gen_dir, _AAR_DIR) |
| custom_lint_jars = [] |
| custom_annotation_zips = [] |
| if aars: |
| for aar in aars: |
| # Use relative source for aar files since they are not generated. |
| aar_dir = os.path.join(aar_root_dir, |
| os.path.splitext(_SrcRelative(aar))[0]) |
| shutil.rmtree(aar_dir, True) |
| os.makedirs(aar_dir) |
| aar_files = build_utils.ExtractAll(aar, path=aar_dir) |
| for f in aar_files: |
| if f.endswith('lint.jar'): |
| custom_lint_jars.append(f) |
| elif f.endswith('annotations.zip'): |
| custom_annotation_zips.append(f) |
| |
| logging.info('Extracting srcjars') |
| srcjar_root_dir = os.path.join(lint_gen_dir, _SRCJAR_DIR) |
| srcjar_sources = [] |
| if srcjars: |
| for srcjar in srcjars: |
| # Use path without extensions since otherwise the file name includes |
| # .srcjar and lint treats it as a srcjar. |
| srcjar_dir = os.path.join(srcjar_root_dir, os.path.splitext(srcjar)[0]) |
| shutil.rmtree(srcjar_dir, True) |
| os.makedirs(srcjar_dir) |
| # Sadly lint's srcjar support is broken since it only considers the first |
| # srcjar. Until we roll a lint version with that fixed, we need to extract |
| # it ourselves. |
| srcjar_sources.extend(build_utils.ExtractAll(srcjar, path=srcjar_dir)) |
| |
| logging.info('Generating project file') |
| project_file_root = _GenerateProjectFile(lint_android_manifest_path, |
| android_sdk_root, cache_dir, sources, |
| classpath, srcjar_sources, |
| resource_sources, custom_lint_jars, |
| custom_annotation_zips, |
| android_sdk_version) |
| |
| project_xml_path = os.path.join(lint_gen_dir, 'project.xml') |
| _WriteXmlFile(project_file_root, project_xml_path) |
| cmd += ['--project', project_xml_path] |
| |
| logging.info('Preparing environment variables') |
| env = os.environ.copy() |
| # It is important that lint uses the checked-in JDK11 as it is almost 50% |
| # faster than JDK8. |
| env['JAVA_HOME'] = build_utils.JAVA_HOME |
| # This is necessary so that lint errors print stack traces in stdout. |
| env['LINT_PRINT_STACKTRACE'] = 'true' |
| if baseline and not os.path.exists(baseline): |
| # Generating new baselines is only done locally, and requires more memory to |
| # avoid OOMs. |
| env['LINT_OPTS'] = '-Xmx4g' |
| else: |
| # The default set in the wrapper script is 1g, but it seems not enough :( |
| env['LINT_OPTS'] = '-Xmx2g' |
| |
| # This filter is necessary for JDK11. |
| stderr_filter = build_utils.FilterReflectiveAccessJavaWarnings |
| stdout_filter = lambda x: build_utils.FilterLines(x, 'No issues found') |
| |
| start = time.time() |
| logging.debug('Lint command %s', ' '.join(cmd)) |
| failed = True |
| try: |
| failed = bool( |
| build_utils.CheckOutput(cmd, |
| env=env, |
| print_stdout=True, |
| stdout_filter=stdout_filter, |
| stderr_filter=stderr_filter, |
| fail_on_output=warnings_as_errors)) |
| finally: |
| # When not treating warnings as errors, display the extra footer. |
| is_debug = os.environ.get('LINT_DEBUG', '0') != '0' |
| |
| if failed: |
| print('- For more help with lint in Chrome:', _LINT_MD_URL) |
| if is_debug: |
| print('- DEBUG MODE: Here is the project.xml: {}'.format( |
| _SrcRelative(project_xml_path))) |
| else: |
| print('- Run with LINT_DEBUG=1 to enable lint configuration debugging') |
| |
| end = time.time() - start |
| logging.info('Lint command took %ss', end) |
| if not is_debug: |
| shutil.rmtree(aar_root_dir, ignore_errors=True) |
| shutil.rmtree(resource_root_dir, ignore_errors=True) |
| shutil.rmtree(srcjar_root_dir, ignore_errors=True) |
| os.unlink(project_xml_path) |
| |
| logging.info('Lint completed') |
| |
| |
| def _ParseArgs(argv): |
| parser = argparse.ArgumentParser() |
| build_utils.AddDepfileOption(parser) |
| parser.add_argument('--target-name', help='Fully qualified GN target name.') |
| parser.add_argument('--skip-build-server', |
| action='store_true', |
| help='Avoid using the build server.') |
| parser.add_argument('--lint-binary-path', |
| required=True, |
| help='Path to lint executable.') |
| parser.add_argument('--backported-methods', |
| help='Path to backported methods file created by R8.') |
| parser.add_argument('--cache-dir', |
| required=True, |
| help='Path to the directory in which the android cache ' |
| 'directory tree should be stored.') |
| parser.add_argument('--config-path', help='Path to lint suppressions file.') |
| parser.add_argument('--lint-gen-dir', |
| required=True, |
| help='Path to store generated xml files.') |
| parser.add_argument('--stamp', help='Path to stamp upon success.') |
| parser.add_argument('--android-sdk-version', |
| help='Version (API level) of the Android SDK used for ' |
| 'building.') |
| parser.add_argument('--min-sdk-version', |
| required=True, |
| help='Minimal SDK version to lint against.') |
| parser.add_argument('--android-sdk-root', |
| required=True, |
| help='Lint needs an explicit path to the android sdk.') |
| parser.add_argument('--testonly', |
| action='store_true', |
| help='If set, some checks like UnusedResources will be ' |
| 'disabled since they are not helpful for test ' |
| 'targets.') |
| parser.add_argument('--create-cache', |
| action='store_true', |
| help='Whether this invocation is just warming the cache.') |
| parser.add_argument('--warnings-as-errors', |
| action='store_true', |
| help='Treat all warnings as errors.') |
| parser.add_argument('--java-sources', |
| help='File containing a list of java sources files.') |
| parser.add_argument('--aars', help='GN list of included aars.') |
| parser.add_argument('--srcjars', help='GN list of included srcjars.') |
| parser.add_argument('--manifest-path', |
| help='Path to original AndroidManifest.xml') |
| parser.add_argument('--extra-manifest-paths', |
| action='append', |
| help='GYP-list of manifest paths to merge into the ' |
| 'original AndroidManifest.xml') |
| parser.add_argument('--resource-sources', |
| default=[], |
| action='append', |
| help='GYP-list of resource sources files, similar to ' |
| 'java sources files, but for resource files.') |
| parser.add_argument('--resource-zips', |
| default=[], |
| action='append', |
| help='GYP-list of resource zips, zip files of generated ' |
| 'resource files.') |
| parser.add_argument('--classpath', |
| help='List of jars to add to the classpath.') |
| parser.add_argument('--baseline', |
| help='Baseline file to ignore existing errors and fail ' |
| 'on new errors.') |
| |
| args = parser.parse_args(build_utils.ExpandFileArgs(argv)) |
| args.java_sources = build_utils.ParseGnList(args.java_sources) |
| args.aars = build_utils.ParseGnList(args.aars) |
| args.srcjars = build_utils.ParseGnList(args.srcjars) |
| args.resource_sources = build_utils.ParseGnList(args.resource_sources) |
| args.extra_manifest_paths = build_utils.ParseGnList(args.extra_manifest_paths) |
| args.resource_zips = build_utils.ParseGnList(args.resource_zips) |
| args.classpath = build_utils.ParseGnList(args.classpath) |
| return args |
| |
| |
| def main(): |
| build_utils.InitLogging('LINT_DEBUG') |
| args = _ParseArgs(sys.argv[1:]) |
| |
| # TODO(wnwen): Consider removing lint cache now that there are only two lint |
| # invocations. |
| # Avoid parallelizing cache creation since lint runs without the cache defeat |
| # the purpose of creating the cache in the first place. |
| if (not args.create_cache and not args.skip_build_server |
| and server_utils.MaybeRunCommand( |
| name=args.target_name, argv=sys.argv, stamp_file=args.stamp)): |
| return |
| |
| sources = [] |
| for java_sources_file in args.java_sources: |
| sources.extend(build_utils.ReadSourcesList(java_sources_file)) |
| resource_sources = [] |
| for resource_sources_file in args.resource_sources: |
| resource_sources.extend(build_utils.ReadSourcesList(resource_sources_file)) |
| |
| possible_depfile_deps = (args.srcjars + args.resource_zips + sources + |
| resource_sources + [ |
| args.baseline, |
| args.manifest_path, |
| ]) |
| depfile_deps = [p for p in possible_depfile_deps if p] |
| |
| _RunLint(args.lint_binary_path, |
| args.backported_methods, |
| args.config_path, |
| args.manifest_path, |
| args.extra_manifest_paths, |
| sources, |
| args.classpath, |
| args.cache_dir, |
| args.android_sdk_version, |
| args.aars, |
| args.srcjars, |
| args.min_sdk_version, |
| resource_sources, |
| args.resource_zips, |
| args.android_sdk_root, |
| args.lint_gen_dir, |
| args.baseline, |
| testonly_target=args.testonly, |
| warnings_as_errors=args.warnings_as_errors) |
| logging.info('Creating stamp file') |
| build_utils.Touch(args.stamp) |
| |
| if args.depfile: |
| build_utils.WriteDepfile(args.depfile, args.stamp, depfile_deps) |
| |
| |
| if __name__ == '__main__': |
| sys.exit(main()) |
