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#
# Copyright (c) 2013- Facebook. All rights reserved.
#
from __future__ import absolute_import
from __future__ import division
from __future__ import print_function
from __future__ import unicode_literals
import argparse
import csv
import glob
import json
import logging
import multiprocessing
import os
import re
import shutil
import subprocess
import sys
import tempfile
import time
import xml.etree.ElementTree as ET
# Increase the limit of the CSV parser to sys.maxlimit
csv.field_size_limit(sys.maxsize)
# Infer imports
import jwlib
import utils
# list of analysis options
INFER = 'infer'
ERADICATE = 'eradicate'
CHECKERS = 'checkers'
CAPTURE = 'capture'
COMPILE = 'compile'
TRACING = 'tracing'
MODES = [COMPILE, CAPTURE, INFER, ERADICATE, CHECKERS, TRACING]
INFER_ANALYZE_BINARY = "InferAnalyze"
class AbsolutePathAction(argparse.Action):
"""Convert a path from relative to absolute in the arg parser"""
def __call__(self, parser, namespace, values, option_string=None):
setattr(namespace, self.dest, os.path.abspath(values))
# https://github.com/python/cpython/blob/aa8ea3a6be22c92e774df90c6a6ee697915ca8ec/Lib/argparse.py
class VersionAction(argparse._VersionAction):
def __call__(self, parser, namespace, values, option_string=None):
# set self.version so that argparse version action knows it
self.version = self.get_infer_version()
super(VersionAction, self).__call__(parser,
namespace,
values,
option_string)
def get_infer_version(self):
try:
return subprocess.check_output([
utils.get_cmd_in_bin_dir(INFER_ANALYZE_BINARY), '-version'])
except:
print("Failed to run {0} binary, exiting".
format(INFER_ANALYZE_BINARY))
exit(2)
base_parser = argparse.ArgumentParser(add_help=False)
base_group = base_parser.add_argument_group('global arguments')
base_group.add_argument('-o', '--out', metavar='<directory>',
default=utils.DEFAULT_INFER_OUT, dest='infer_out',
action=AbsolutePathAction,
help='Set the INFER results directory')
base_group.add_argument('-i', '--incremental', action='store_true',
help='''Do not delete the results directory across
Infer runs''')
base_group.add_argument('-g', '--debug', action='store_true',
help='Generate extra debugging information')
base_group.add_argument('-a', '--analyzer',
help='Select the analyzer within: {0}'.format(
', '.join(MODES)),
default=INFER)
base_group.add_argument('-m', '--analyzer_mode', metavar='<analyzer_mode>',
help='''Select a special analyzer mode such as
graphql1 or graphql2''')
base_parser.add_argument('-v', '--version', help='Get version of the analyzer',
action=VersionAction)
inferJ_parser = argparse.ArgumentParser(parents=[base_parser])
inferJ_group = inferJ_parser.add_argument_group('backend arguments')
inferJ_group.add_argument('-j', '--multicore', metavar='n', type=int,
default=multiprocessing.cpu_count(),
dest='multicore', help='Set the number of cores to '
'be used for the analysis (default uses all cores)')
inferJ_group.add_argument('-x', '--project', metavar='<projectname>',
help='Project name, for recording purposes only')
inferJ_group.add_argument('-r', '--revision', metavar='<githash>',
help='The githash, for recording purposes only')
inferJ_group.add_argument('--buck', action='store_true', dest='buck',
help='To use when run with buck')
inferJ_group.add_argument('--infer_cache', metavar='<directory>',
help='Select a directory to contain the infer cache')
inferJ_group.add_argument('-pr', '--project_root',
dest='project_root',
default=os.getcwd(),
help='Location of the project root '
'(default is current directory)')
inferJ_group.add_argument('--objc_ml_buckets',
dest='objc_ml_buckets',
help='memory leak buckets to be checked, '
'separated by commas. The possible '
'buckets are cf (Core Foundation), '
'arc, narc (No arc)')
inferJ_group.add_argument('-nt', '--notest', action='store_true',
dest='notest',
help='Prints output of symbolic execution')
def detect_javac(args):
for index, arg in enumerate(args):
if arg == 'javac':
return index
def get_inferJ_args(args):
index = detect_javac(args)
if index is None:
cmd_args = args
else:
cmd_args = args[:index]
return inferJ_parser.parse_args(cmd_args)
def get_javac_args(args):
javac_args = args[detect_javac(args) + 1:]
if len(javac_args) == 0:
return None
else:
# replace any -g:.* flag with -g to preserve debugging symbols
return map(lambda arg: '-g' if '-g:' in arg else arg, javac_args)
def remove_infer_out(infer_out):
# it is safe to ignore errors here because recreating the infer_out
# directory will fail later
shutil.rmtree(infer_out, True)
def clean_infer_out(infer_out):
directories = ['multicore', 'classnames', 'sources']
extensions = ['.cfg', '.cg']
for root, dirs, files in os.walk(infer_out):
for d in dirs:
if d in directories:
path = os.path.join(root, d)
shutil.rmtree(path)
for f in files:
for ext in extensions:
if f.endswith(ext):
path = os.path.join(root, f)
os.remove(path)
def help_exit(message):
print(message)
inferJ_parser.print_usage()
exit(1)
def compare_rows(row_1, row_2):
filename_1 = row_1[utils.CSV_INDEX_FILENAME]
filename_2 = row_2[utils.CSV_INDEX_FILENAME]
if filename_1 < filename_2:
return -1
elif filename_1 > filename_2:
return 1
else:
line_1 = int(row_1[utils.CSV_INDEX_LINE])
line_2 = int(row_2[utils.CSV_INDEX_LINE])
return line_1 - line_2
def sort_csv(csv_report, infer_out):
collected_rows = []
with open(csv_report, 'r') as file_in:
reader = csv.reader(file_in)
rows = [row for row in reader]
if len(rows) <= 1:
return rows
else:
for row in rows[1:]:
filename = row[utils.CSV_INDEX_FILENAME]
if os.path.isfile(filename):
collected_rows.append(row)
collected_rows = sorted(
collected_rows,
cmp=compare_rows)
collected_rows = [rows[0]] + collected_rows
temporary_file = tempfile.mktemp()
with open(temporary_file, 'w') as file_out:
writer = csv.writer(file_out)
writer.writerows(collected_rows)
file_out.flush()
shutil.move(temporary_file, csv_report)
def should_print(analyzer, row):
error_kind = row[utils.CSV_INDEX_KIND]
error_type = row[utils.CSV_INDEX_TYPE]
error_bucket = '' # can be updated later once we extract it from qualifier
try:
qualifier_xml = ET.fromstring(row[utils.CSV_INDEX_QUALIFIER_TAGS])
if qualifier_xml.tag == utils.QUALIFIER_TAGS:
bucket = qualifier_xml.find(utils.BUCKET_TAGS)
if bucket is not None:
error_bucket = bucket.text
except ET.ParseError:
pass # this will skip any invalid xmls
# config what to print is listed below
error_kinds = ['ERROR', 'WARNING']
null_style_bugs = [
'NULL_DEREFERENCE',
'PARAMETER_NOT_NULL_CHECKED',
'IVAR_NOT_NULL_CHECKED',
'PREMATURE_NIL_TERMINATION_ARGUMENT',
]
null_style_buckets = ['B1', 'B2']
other_bugs = ['RESOURCE_LEAK', 'MEMORY_LEAK', 'RETAIN_CYCLE']
filter_by_type = True
if analyzer in [ERADICATE, CHECKERS]:
# report all issues for eredicate and checkers
filter_by_type = False
if error_kind not in error_kinds:
return False
if not filter_by_type:
return True
if not error_type:
return False
if error_type in null_style_bugs:
if error_bucket and error_bucket in null_style_buckets:
return True
else:
return False
elif error_type in other_bugs:
return True
else:
return False
def remove_bucket(bug_message):
""" Remove anything from the beginning if the message that
looks like a bucket """
return re.sub(r'(^\[[a-zA-Z0-9]*\])', '', bug_message, 1)
def print_and_write(file_out, message):
print(message)
file_out.write(message + '\n')
def print_errors(csv_report, bugs_out, analyzer):
with open(csv_report, 'r') as file_in:
reader = csv.reader(file_in)
reader.next() # first line is header, skip it
errors = filter(
lambda row: should_print(analyzer, row),
reader
)
with open(bugs_out, 'w') as file_out:
if not errors:
print_and_write(file_out, 'No issues found')
for row in errors:
filename = row[utils.CSV_INDEX_FILENAME]
if os.path.isfile(filename):
kind = row[utils.CSV_INDEX_KIND]
line = row[utils.CSV_INDEX_LINE]
error_type = row[utils.CSV_INDEX_TYPE]
msg = remove_bucket(row[utils.CSV_INDEX_QUALIFIER])
print_and_write(
file_out,
'{0}:{1}: {2}: {3}\n {4}\n'.format(
filename,
line,
kind.lower(),
error_type,
msg,
)
)
def run_command(cmd, debug_mode, javac_arguments, step, analyzer):
if debug_mode:
print('\n{0}\n'.format(' '.join(cmd)))
try:
return subprocess.check_call(cmd)
except subprocess.CalledProcessError as e:
error_msg = 'Failure during {0}, original command was\n\n{1}\n\n'
inferJ_cmd = ['inferJ', '-g', '-a', analyzer]
failing_cmd = inferJ_cmd + ['javac'] + javac_arguments
logging.error(error_msg.format(
step,
failing_cmd
))
raise e
class Infer:
def __init__(self, args, javac_args):
self.args = args
if self.args.analyzer not in MODES:
help_exit(
'Unknown analysis mode \"{0}\"'.format(self.args.analyzer)
)
utils.configure_logging(self.args.debug)
self.javac = jwlib.CompilerCall(javac_args)
if not self.javac.args.version:
if javac_args is None:
help_exit('No javac command detected')
if self.args.infer_out is None:
help_exit('Expect INFER results directory')
if self.args.buck:
self.args.infer_out = os.path.join(
self.javac.args.classes_out,
utils.BUCK_INFER_OUT)
self.args.infer_out = os.path.abspath(self.args.infer_out)
try:
os.mkdir(self.args.infer_out)
except OSError as e:
if not os.path.isdir(self.args.infer_out):
raise e
self.stats = {'int': {}, 'float': {}}
self.timing = {}
def clean_exit(self):
if os.path.isdir(self.args.infer_out):
print('removing', self.args.infer_out)
shutil.rmtree(self.args.infer_out)
exit(os.EX_OK)
def run_infer_frontend(self):
infer_cmd = [utils.get_cmd_in_bin_dir('InferJava')]
if self.args.buck:
infer_cmd += ['-project_root', os.getcwd()]
infer_cmd += [
'-results_dir', self.args.infer_out,
'-verbose_out', self.javac.verbose_out,
]
if os.path.isfile(utils.MODELS_JAR):
infer_cmd += ['-models', utils.MODELS_JAR]
infer_cmd.append('-no-static_final')
if self.args.debug:
infer_cmd.append('-debug')
if self.args.analyzer == TRACING:
infer_cmd.append('-tracing')
return run_command(
infer_cmd,
self.args.debug,
self.javac.original_arguments,
'frontend',
self.args.analyzer
)
def compile(self):
return self.javac.run()
def capture(self):
javac_status = self.compile()
if javac_status == os.EX_OK:
return self.run_infer_frontend()
else:
return javac_status
def analyze(self):
infer_analyze = [
utils.get_cmd_in_bin_dir(INFER_ANALYZE_BINARY),
'-results_dir',
self.args.infer_out
]
infer_options = []
# remove specs if possible so that old issues are less likely
# to be reported
infer_options += ['-allow_specs_cleanup']
if self.args.analyzer == ERADICATE:
infer_options += ['-checkers', '-eradicate']
elif self.args.analyzer == CHECKERS:
infer_options += ['-checkers']
else:
if self.args.analyzer == TRACING:
infer_options.append('-tracing')
if os.path.isfile(utils.MODELS_JAR):
infer_options += ['-models', utils.MODELS_JAR]
if self.args.analyzer_mode:
infer_options += ['-analyzer_mode', self.args.analyzer_mode]
if self.args.infer_cache:
infer_options += ['-infer_cache', self.args.infer_cache]
if self.args.objc_ml_buckets:
infer_options += ['-objc_ml_buckets', self.args.objc_ml_buckets]
if self.args.notest:
infer_options += ['-notest']
if self.args.debug:
infer_options += [
'-developer_mode',
'-html',
'-dotty',
'-print_types',
'-trace_error',
# '-notest',
]
exit_status = os.EX_OK
if self.args.buck:
infer_options += ['-project_root', os.getcwd(), '-java']
if self.javac.args.classpath is not None:
for path in self.javac.args.classpath.split(os.pathsep):
if os.path.isfile(path):
infer_options += ['-ziplib', os.path.abspath(path)]
elif self.args.project_root:
infer_options += ['-project_root', self.args.project_root]
if self.args.multicore == 1:
analyze_cmd = infer_analyze + infer_options
exit_status = run_command(
analyze_cmd,
self.args.debug,
self.javac.original_arguments,
'analysis',
self.args.analyzer
)
else:
if self.args.analyzer in [ERADICATE, CHECKERS]:
infer_analyze.append('-intraprocedural')
os.environ['INFER_OPTIONS'] = ' '.join(infer_options)
multicore_dir = os.path.join(self.args.infer_out, 'multicore')
pwd = os.getcwd()
if os.path.isdir(multicore_dir):
shutil.rmtree(multicore_dir)
os.mkdir(multicore_dir)
os.chdir(multicore_dir)
os.environ['INFER_DEVELOPER'] = 'Y'
analyze_cmd = infer_analyze + ['-makefile', 'Makefile']
analyze_cmd += infer_options
makefile_status = run_command(
analyze_cmd,
self.args.debug,
self.javac.original_arguments,
'create_makefile',
self.args.analyzer
)
exit_status += makefile_status
if makefile_status == os.EX_OK:
make_cmd = ['make', '-k', '-j', str(self.args.multicore)]
if not self.args.debug:
make_cmd += ['-s']
make_status = run_command(
make_cmd,
self.args.debug,
self.javac.original_arguments,
'run_makefile',
self.args.analyzer
)
os.chdir(pwd)
exit_status += make_status
if self.args.buck and exit_status == os.EX_OK:
clean_infer_out(self.args.infer_out)
cfgs = os.path.join(self.args.infer_out, 'captured', '*', '')
captured_total = len(glob.glob(cfgs))
captured_plural = '' if captured_total <= 1 else 's'
print('\n%d file%s analyzed' % (captured_total, captured_plural))
return exit_status
def file_stats(self, file, stats):
if file is not None:
stats['files'] += 1
try:
with open(file, 'r') as f:
stats['lines'] += len(list(f))
except IOError:
logging.warning('File {} not found'.format(file))
def javac_stats(self):
stats = {'files': 0, 'lines': 0}
for arg in self.javac.original_arguments:
file = None
if arg.endswith('.java'):
file = arg
self.file_stats(file, stats)
if arg.startswith('@'):
with open(arg[1:], 'r') as f:
for line in f:
file = line.strip()
self.file_stats(file, stats)
return stats
def update_stats(self, csv_report):
with open(csv_report, 'r') as file_in:
reader = csv.reader(file_in)
rows = [row for row in reader][1:]
for row in rows:
key = row[utils.CSV_INDEX_TYPE]
previous_value = self.stats['int'].get(key, 0)
self.stats['int'][key] = previous_value + 1
def report_errors(self):
"""Report statistics about the computation and create a CSV file
containing the list or errors found during the analysis"""
csv_report = os.path.join(self.args.infer_out,
utils.CSV_REPORT_FILENAME)
bugs_out = os.path.join(self.args.infer_out,
utils.BUGS_FILENAME)
procs_report = os.path.join(self.args.infer_out, 'procs.csv')
infer_print_cmd = [utils.get_cmd_in_bin_dir('InferPrint')]
infer_print_options = [
'-q',
'-results_dir', self.args.infer_out,
'-bugs', csv_report,
'-procs', procs_report,
'-analyzer', self.args.analyzer
]
exit_status = subprocess.check_call(
infer_print_cmd + infer_print_options
)
if exit_status != os.EX_OK:
logging.error('Error with InferPrint with the command: '
+ infer_print_cmd)
else:
sort_csv(csv_report, self.args.infer_out)
self.update_stats(csv_report)
utils.create_json_report(self.args.infer_out)
print('\n')
if not self.args.buck:
print_errors(csv_report, bugs_out, self.args.analyzer)
return exit_status
def save_stats(self):
"""Print timing information to infer_out/stats.json"""
stats_path = os.path.join(self.args.infer_out, utils.STATS_FILENAME)
self.stats['int'].update(self.javac_stats())
self.stats['float'].update({
'capture_time': self.timing.get('capture', 0.0),
'analysis_time': self.timing.get('analysis', 0.0),
'reporting_time': self.timing.get('reporting', 0.0),
})
# Adding the analyzer and the version of Infer
self.stats['normal'] = {}
self.stats['normal']['analyzer'] = self.args.analyzer
self.stats['normal']['infer_version'] = utils.infer_version()
with open(stats_path, 'w') as stats_file:
json.dump(self.stats, stats_file)
def close(self):
if self.args.analyzer != COMPILE:
os.remove(self.javac.verbose_out)
def analyze_and_report(self):
if self.args.analyzer not in [COMPILE, CAPTURE]:
analysis_start_time = time.time()
if self.analyze() == os.EX_OK:
elapsed = utils.elapsed_time(analysis_start_time)
self.timing['analysis'] = elapsed
reporting_start_time = time.time()
self.report_errors()
elapsed = utils.elapsed_time(reporting_start_time)
self.timing['reporting'] = elapsed
def start(self):
if self.javac.args.version:
if self.args.buck:
key = self.args.analyzer
if self.args.analyzer_mode:
key += '_' + self.args.analyzer_mode
print(utils.infer_key(key), file=sys.stderr)
else:
return self.javac.run()
else:
start_time = time.time()
if self.capture() == os.EX_OK:
self.timing['capture'] = utils.elapsed_time(start_time)
self.analyze_and_report()
self.close()
elapsed = utils.elapsed_time(start_time)
self.timing['total'] = elapsed
self.save_stats()
return self.stats
else:
return dict({})
# vim: set sw=4 ts=4 et: