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363 lines
14 KiB
363 lines
14 KiB
# Copyright (c) 2009 - 2013 Monoidics ltd.
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# Copyright (c) 2013 - present Facebook, Inc.
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# All rights reserved.
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#
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# This source code is licensed under the BSD style license found in the
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# LICENSE file in the root directory of this source tree. An additional grant
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# of patent rights can be found in the PATENTS file in the same directory.
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from __future__ import absolute_import
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from __future__ import division
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from __future__ import print_function
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from __future__ import unicode_literals
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import argparse
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import codecs
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import os
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import subprocess
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import tempfile
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import time
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from . import analyze, config, utils
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# javac options
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parser = argparse.ArgumentParser()
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current_directory = utils.decode(os.getcwd())
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parser.add_argument('-version', action='store_true')
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parser.add_argument('-deprecation', action='store_true')
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parser.add_argument('-cp', '-classpath', type=utils.decode,
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dest='classpath', default=os.getcwd())
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parser.add_argument('-bootclasspath', type=utils.decode)
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parser.add_argument('-d', dest='classes_out', default=current_directory)
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parser.add_argument('-processorpath', type=utils.decode, dest='processorpath')
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parser.add_argument('-processor', type=utils.decode, dest='processor')
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def _get_javac_args(args):
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try:
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javac_pos = args.index('javac')
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except ValueError:
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return None
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javac_args = args[javac_pos + 1:]
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if len(javac_args) == 0:
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return None
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else:
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# replace any -g:.* flag with -g to preserve debugging symbols
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args = map(lambda arg: '-g' if '-g:' in arg else arg, javac_args)
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# skip -Werror
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args = filter(lambda arg: arg != '-Werror', args)
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return args
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def create_infer_command(args, javac_arguments):
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infer_args = ['-o', args.infer_out]
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if args.debug:
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infer_args.append('--debug')
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infer_args += ['--analyzer', 'capture']
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return AnalyzerWithJavac(
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analyze.infer_parser.parse_args(infer_args),
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'javac',
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_get_javac_args(['javac'] + javac_arguments)
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)
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# return True if string is empty or an escaped variant of empty
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def _is_empty_classpath(string):
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stripped = string.strip("'").strip('"')
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if stripped == '':
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return True
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elif stripped == string:
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return False
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else:
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return _is_empty_classpath(stripped)
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class AnnotationProcessorNotFound(Exception):
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def __init__(self, path):
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self.path = path
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def __str__(self):
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return repr(self.path + ' not found')
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class CompilerCall(object):
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def __init__(self, javac_cmd, arguments):
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assert javac_cmd is not None and arguments is not None
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self.javac_cmd = javac_cmd
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self.original_arguments = arguments
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self.args, self.remaining_args = parser.parse_known_args(arguments)
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self.verbose_out = None
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def get_version(self):
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assert self.args.version
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return subprocess.check_output(
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self.javac_cmd + self.original_arguments,
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stderr=subprocess.STDOUT).strip()
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def run(self):
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if self.args.version:
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return subprocess.call(self.javac_cmd + self.original_arguments)
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else:
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javac_args = ['-verbose', '-g']
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if self.args.bootclasspath is not None:
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javac_args += ['-bootclasspath', self.args.bootclasspath]
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if not os.path.isfile(config.ANNOT_PROCESSOR_JAR):
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raise AnnotationProcessorNotFound(config.ANNOT_PROCESSOR_JAR)
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if self.args.classes_out is not None:
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javac_args += ['-d', self.args.classes_out]
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classpath = self.args.classpath
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# the -processorpath option precludes searching the classpath for
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# annotation processors, so we don't want to use it unless the
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# javac command does
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if self.args.processorpath is not None:
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processorpath = os.pathsep.join([config.ANNOT_PROCESSOR_JAR,
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self.args.processorpath])
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javac_args += ['-processorpath', processorpath]
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else:
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classpath = os.pathsep.join([config.ANNOT_PROCESSOR_JAR,
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classpath])
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at_args = [
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arg for arg in self.remaining_args if arg.startswith('@')]
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found_classpath = False
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for at_arg in at_args:
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# remove @ character
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args_file_name = at_arg[1:]
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with codecs.open(args_file_name, 'r',
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encoding=config.CODESET) as args_file:
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args_file_contents = args_file.read()
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prefix_suffix = args_file_contents.split('-classpath\n', 1)
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if len(prefix_suffix) == 2:
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prefix, suffix = prefix_suffix
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with tempfile.NamedTemporaryFile(
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dir=self.args.infer_out,
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suffix='_cp',
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delete=False) as args_file_cp:
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cp_line, _, after_cp = suffix.partition('\n')
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# avoid errors the happen when we get -classpath '"',
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# -classpath '', or similar from the args file
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if _is_empty_classpath(cp_line):
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cp_line = '\n'
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else:
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cp_line = ':{}\n'.format(cp_line)
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cp_line = prefix + '-classpath\n' + classpath + cp_line
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cp_line += after_cp
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args_file_cp.write(cp_line)
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at_arg_cp = '@' + args_file_cp.name
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self.remaining_args = [
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at_arg_cp if arg == at_arg else arg
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for arg in self.remaining_args]
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found_classpath = True
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break
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javac_args += self.remaining_args
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if not found_classpath:
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# -classpath option not found in any args file
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javac_args += ['-classpath', classpath]
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# this overrides the default mechanism for discovering annotation
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# processors (checking the manifest of the annotation processor
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# JAR), so we don't want to use it unless the javac command does
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if self.args.processor is not None:
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processor = '{infer_processors},{original_processors}'.format(
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infer_processors=config.ANNOT_PROCESSOR_NAMES,
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original_processors=self.args.processor
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)
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javac_args += ['-processor', processor]
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with tempfile.NamedTemporaryFile(
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mode='w',
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suffix='.out',
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prefix='annotations_',
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delete=False) as annot_out:
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# Initialize the contents of the file to a valid empty
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# json object.
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annot_out.write('{}')
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self.suppress_warnings_out = annot_out.name
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javac_args += ['-A%s=%s' %
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(config.SUPRESS_WARNINGS_OUTPUT_FILENAME_OPTION,
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self.suppress_warnings_out)]
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def arg_must_go_on_cli(arg):
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# as mandated by javac, argument files must not contain
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# arguments
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return arg.startswith('-J') or arg.startswith('@')
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file_args = filter(lambda x: not arg_must_go_on_cli(x), javac_args)
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cli_args = filter(arg_must_go_on_cli, javac_args)
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# pass non-special args via a file to avoid blowing up the
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# command line size limit
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with tempfile.NamedTemporaryFile(
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mode='w',
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prefix='javac_args_',
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delete=False) as command_line:
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escaped_args = map(lambda x: '"%s"' % (x.replace('"', '\\"')),
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file_args)
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command_line.write(utils.encode('\n'.join(escaped_args)))
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command_line.write('\n')
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self.command_line_file = command_line.name
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with tempfile.NamedTemporaryFile(
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mode='w',
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suffix='.out',
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prefix='javac_',
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delete=False) as file_out:
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self.verbose_out = file_out.name
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command = self.javac_cmd + cli_args + \
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['@' + str(self.command_line_file)]
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try:
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subprocess.check_call(command, stderr=file_out)
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except subprocess.CalledProcessError:
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error_msg = 'ERROR: failure during compilation command.' \
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+ '\nYou can run the failing compilation ' \
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+ 'command again by copy-pasting the\nlines ' \
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+ 'below in your terminal:\n\n"""\n' \
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+ 'python <<EOF\n' \
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+ 'import subprocess\n' \
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+ 'cmd = {}\n' \
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+ 'subprocess.check_call(cmd)\n' \
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+ 'EOF\n"""\n'
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failing_cmd = filter(lambda arg: arg != '-verbose',
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command)
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utils.stderr(error_msg.format(failing_cmd))
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subprocess.check_call(failing_cmd)
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return os.EX_OK
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class AnalyzerWithFrontendWrapper(analyze.AnalyzerWrapper):
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def __init__(self, infer_args, compiler_call):
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analyze.AnalyzerWrapper.__init__(self, infer_args)
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self.javac = compiler_call
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if not self.javac.args.version:
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if self.javac.original_arguments is None:
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raise Exception('No javac command detected')
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if self.args.buck:
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self.args.infer_out = os.path.join(
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self.javac.args.classes_out,
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config.BUCK_INFER_OUT)
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self.args.infer_out = os.path.abspath(self.args.infer_out)
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def compute_buck_key(self):
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javac_version = self.javac.get_version()
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infer_version = utils.infer_key(self.args.analyzer)
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return '/'.join([javac_version, infer_version])
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def start(self):
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if self.javac.args.version:
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if self.args.buck:
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utils.stderr(self.compute_buck_key())
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else:
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return self.javac.run()
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else:
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start_time = time.time()
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self._compile()
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if self.args.analyzer == config.ANALYZER_COMPILE:
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return os.EX_OK
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self._run_infer_frontend()
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self.timing['capture'] = utils.elapsed_time(start_time)
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if self.args.analyzer == config.ANALYZER_CAPTURE:
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return os.EX_OK
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if self.args.buck:
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if self.javac.args.classpath is not None:
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infer_args = utils.read_env()['INFER_ARGS']
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# 'INFER_ARGS' must be CommandLineOption.args_env_var
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for path in self.javac.args.classpath.split(os.pathsep):
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if os.path.isfile(path):
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infer_args += '^--specs-library^' + os.path.abspath(path)
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# '^' must be CommandLineOption.env_var_sep
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os.environ['INFER_ARGS'] = utils.encode(infer_args)
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self.analyze_and_report()
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self._close()
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self.timing['total'] = utils.elapsed_time(start_time)
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self.save_stats()
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return self.stats
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# create a classpath to pass to the frontend
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def _create_frontend_classpath(self):
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classes_out = '.'
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if self.javac.args.classes_out is not None:
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classes_out = self.javac.args.classes_out
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classes_out = os.path.abspath(classes_out)
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original_classpath = []
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if self.javac.args.bootclasspath is not None:
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original_classpath = self.javac.args.bootclasspath.split(':')
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if self.javac.args.classpath is not None:
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original_classpath += self.javac.args.classpath.split(':')
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if len(original_classpath) > 0:
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# add classes_out, unless it's already in the classpath
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classpath = [os.path.abspath(p) for p in original_classpath]
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if classes_out not in classpath:
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classpath = [classes_out] + classpath
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# remove models.jar; it's added by the frontend
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models_jar = os.path.abspath(config.MODELS_JAR)
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if models_jar in classpath:
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classpath.remove(models_jar)
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return ':'.join(classpath)
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return classes_out
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def _run_infer_frontend(self):
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infer_cmd = [utils.get_cmd_in_bin_dir('InferJava')]
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infer_cmd += ['-classpath', self._create_frontend_classpath()]
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infer_cmd += [
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'-results_dir', self.args.infer_out,
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'-verbose_out', self.javac.verbose_out,
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'-suppress_warnings_out', self.javac.suppress_warnings_out,
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]
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if self.args.debug:
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infer_cmd.append('-debug')
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if self.args.analyzer == config.ANALYZER_TRACING:
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infer_cmd.append('-tracing')
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if self.args.android_harness:
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infer_cmd.append('-harness')
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return analyze.run_command(
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infer_cmd,
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self.args.debug,
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self.javac.original_arguments,
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'frontend',
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self.args.analyzer
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)
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def _compile(self):
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return self.javac.run()
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def _close(self):
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os.remove(self.javac.verbose_out)
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os.remove(self.javac.suppress_warnings_out)
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class AnalyzerWithJavac(AnalyzerWithFrontendWrapper):
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def __init__(self, infer_args, javac_executable, javac_args):
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javac_cmd = [javac_executable, '-J-Duser.language=en']
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compiler_call = CompilerCall(javac_cmd, javac_args)
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AnalyzerWithFrontendWrapper.__init__(self, infer_args, compiler_call)
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class AnalyzerWithJavaJar(AnalyzerWithFrontendWrapper):
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def __init__(self, infer_args, java_executable, jar_path, compiler_args):
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javac_cmd = [java_executable, '-jar', jar_path]
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compiler_call = CompilerCall(javac_cmd, compiler_args)
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AnalyzerWithFrontendWrapper.__init__(self, infer_args, compiler_call)
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