Revision control

Line Code
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302
#!/usr/bin/env python
#
# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.
##########################################################################
#
# This is a collection of helper tools to get stuff done in NSS.
#

import sys
import argparse
import fnmatch
import subprocess
import os
import platform
import tempfile

from hashlib import sha256
from gtests.common.wycheproof.genTestVectors import generate_test_vectors

DEVNULL = open(os.devnull, 'wb')
cwd = os.path.dirname(os.path.abspath(__file__))

def run_tests(test, cycles="standard", env={}, silent=False):
    domsuf = os.getenv('DOMSUF', "localdomain")
    host = os.getenv('HOST', "localhost")
    env = env.copy()
    env.update({
        "NSS_TESTS": test,
        "NSS_CYCLES": cycles,
        "DOMSUF": domsuf,
        "HOST": host
    })
    os_env = os.environ
    os_env.update(env)
    command = cwd + "/tests/all.sh"
    stdout = stderr = DEVNULL if silent else None
    subprocess.check_call(command, env=os_env, stdout=stdout, stderr=stderr)

class cfAction(argparse.Action):
    docker_command = ["docker"]
    restorecon = None

    def __call__(self, parser, args, values, option_string=None):
        if not args.noroot:
            self.setDockerCommand()

        if values:
            files = [os.path.relpath(os.path.abspath(x), start=cwd) for x in values]
        else:
            files = self.modifiedFiles()
        files = [os.path.join('/home/worker/nss', x) for x in files]

        # First check if we can run docker.
        try:
            with open(os.devnull, "w") as f:
                subprocess.check_call(
                    self.docker_command + ["images"], stdout=f)
        except:
            print("Please install docker and start the docker daemon.")
            sys.exit(1)

        docker_image = 'clang-format-service:latest'
        cf_docker_folder = cwd + "/automation/clang-format"

        # Build the image if necessary.
        if self.filesChanged(cf_docker_folder):
            self.buildImage(docker_image, cf_docker_folder)

        # Check if we have the docker image.
        try:
            command = self.docker_command + [
                "image", "inspect", "clang-format-service:latest"
            ]
            with open(os.devnull, "w") as f:
                subprocess.check_call(command, stdout=f)
        except:
            print("I have to build the docker image first.")
            self.buildImage(docker_image, cf_docker_folder)

        command = self.docker_command + [
            'run', '-v', cwd + ':/home/worker/nss:Z', '--rm', '-ti', docker_image
        ]
        # The clang format script returns 1 if something's to do. We don't
        # care.
        subprocess.call(command + files)
        if self.restorecon is not None:
            subprocess.call([self.restorecon, '-R', cwd])

    def filesChanged(self, path):
        hash = sha256()
        for dirname, dirnames, files in os.walk(path):
            for file in files:
                with open(os.path.join(dirname, file), "rb") as f:
                    hash.update(f.read())
        chk_file = cwd + "/.chk"
        old_chk = ""
        new_chk = hash.hexdigest()
        if os.path.exists(chk_file):
            with open(chk_file) as f:
                old_chk = f.readline()
        if old_chk != new_chk:
            with open(chk_file, "w+") as f:
                f.write(new_chk)
            return True
        return False

    def buildImage(self, docker_image, cf_docker_folder):
        command = self.docker_command + [
            "build", "-t", docker_image, cf_docker_folder
        ]
        subprocess.check_call(command)
        return

    def setDockerCommand(self):
        if platform.system() == "Linux":
            from distutils.spawn import find_executable
            self.restorecon = find_executable('restorecon')
            self.docker_command = ["sudo"] + self.docker_command

    def modifiedFiles(self):
        files = []
        if os.path.exists(os.path.join(cwd, '.hg')):
            st = subprocess.Popen(['hg', 'status', '-m', '-a'],
                                  cwd=cwd, stdout=subprocess.PIPE, universal_newlines=True)
            for line in iter(st.stdout.readline, ''):
                files += [line[2:].rstrip()]
        elif os.path.exists(os.path.join(cwd, '.git')):
            st = subprocess.Popen(['git', 'status', '--porcelain'],
                                  cwd=cwd, stdout=subprocess.PIPE)
            for line in iter(st.stdout.readline, ''):
                if line[1] == 'M' or line[1] != 'D' and \
                        (line[0] == 'M' or line[0] == 'A' or
                         line[0] == 'C' or line[0] == 'U'):
                    files += [line[3:].rstrip()]
                elif line[0] == 'R':
                    files += [line[line.index(' -> ', beg=4) + 4:]]
        else:
            print('Warning: neither mercurial nor git detected!')

        def isFormatted(x):
            return x[-2:] == '.c' or x[-3:] == '.cc' or x[-2:] == '.h'
        return [x for x in files if isFormatted(x)]


class buildAction(argparse.Action):

    def __call__(self, parser, args, values, option_string=None):
        subprocess.check_call([cwd + "/build.sh"] + values)


class testAction(argparse.Action):

    def __call__(self, parser, args, values, option_string=None):
        run_tests(values)


class covAction(argparse.Action):

    def runSslGtests(self, outdir):
        env = {
            "GTESTFILTER": "*", # Prevent parallel test runs.
            "ASAN_OPTIONS": "coverage=1:coverage_dir=" + outdir
        }

        run_tests("ssl_gtests", env=env, silent=True)

    def findSanCovFile(self, outdir):
        for file in os.listdir(outdir):
            if fnmatch.fnmatch(file, 'ssl_gtest.*.sancov'):
                return os.path.join(outdir, file)

        return None

    def __call__(self, parser, args, values, option_string=None):
        outdir = args.outdir
        print("Output directory: " + outdir)

        print("\nBuild with coverage sanitizers...\n")
        sancov_args = "edge,no-prune,trace-pc-guard,trace-cmp"
        subprocess.check_call([
            os.path.join(cwd, "build.sh"), "-c", "--clang", "--asan",
            "--sancov=" + sancov_args
        ])

        print("\nRun ssl_gtests to get a coverage report...")
        self.runSslGtests(outdir)
        print("Done.")

        sancov_file = self.findSanCovFile(outdir)
        if not sancov_file:
            print("Couldn't find .sancov file.")
            sys.exit(1)

        symcov_file = os.path.join(outdir, "ssl_gtest.symcov")
        out = open(symcov_file, 'wb')
        subprocess.check_call([
            "sancov",
            "-blacklist=" + os.path.join(cwd, ".sancov-blacklist"),
            "-symbolize", sancov_file,
            os.path.join(cwd, "../dist/Debug/bin/ssl_gtest")
        ], stdout=out)
        out.close()

        print("\nCoverage report: " + symcov_file)


class commandsAction(argparse.Action):
    commands = []

    def __call__(self, parser, args, values, option_string=None):
        for c in commandsAction.commands:
            print(c)

class wycheproofAction(argparse.Action):

    def __call__(self, parser, args, values, option_string=None):
        generate_test_vectors()
        clangFormat = cfAction(None, None, None)
        clangFormat(None, args, None)


def parse_arguments():
    parser = argparse.ArgumentParser(
        description='NSS helper script. ' +
        'Make sure to separate sub-command arguments with --.')
    subparsers = parser.add_subparsers()

    parser_build = subparsers.add_parser(
        'build', help='All arguments are passed to build.sh')
    parser_build.add_argument(
        'build_args', nargs='*', help="build arguments", action=buildAction)

    parser_cf = subparsers.add_parser(
        'clang-format',
        help="""
        Run clang-format.

        By default this runs against any files that you have modified.  If
        there are no modified files, it checks everything.
        """)
    parser_cf.add_argument(
        '--noroot',
        help='On linux, suppress the use of \'sudo\' for running docker.',
        action='store_true')
    parser_cf.add_argument(
        '<file/dir>',
        nargs='*',
        help="Specify files or directories to run clang-format on",
        action=cfAction)

    parser_test = subparsers.add_parser(
        'tests', help='Run tests through tests/all.sh.')
    tests = [
        "cipher", "lowhash", "chains", "cert", "dbtests", "tools", "fips",
        "sdr", "crmf", "smime", "ssl", "ocsp", "merge", "pkits", "ec",
        "gtests", "ssl_gtests", "bogo", "interop", "policy"
    ]
    parser_test.add_argument(
        'test', choices=tests, help="Available tests", action=testAction)

    parser_cov = subparsers.add_parser(
        'coverage', help='Generate coverage report')
    cov_modules = ["ssl_gtests"]
    parser_cov.add_argument(
        '--outdir', help='Output directory for coverage report data.',
        default=tempfile.mkdtemp())
    parser_cov.add_argument(
        'module', choices=cov_modules, help="Available coverage modules",
        action=covAction)

    parser_commands = subparsers.add_parser(
        'mach-commands',
        help="list commands")
    parser_commands.add_argument(
        'mach-commands',
        nargs='*',
        action=commandsAction)

    parser_wycheproof = subparsers.add_parser(
        'wycheproof',
        help="generate wycheproof test headers")
    parser_wycheproof.add_argument(
        '--noroot',
        help='On linux, suppress the use of \'sudo\' for running docker.',
        action='store_true')
    parser_wycheproof.add_argument(
        'wycheproof',
        nargs='*',
        action=wycheproofAction)

    commandsAction.commands = [c for c in subparsers.choices]
    return parser.parse_args()


def main():
    parse_arguments()


if __name__ == '__main__':
    main()