Quelle profileserver.py Sprache: Python

#!/usr/bin/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/.

import glob
import json
import os
import subprocess
import sys

import mozcrash
from mozbuild.base import BinaryNotFoundException, MozbuildObject
from mozfile import TemporaryDirectory
from mozhttpd import MozHttpd
from mozprofile import FirefoxProfile, Preferences
from mozprofile.permissions import ServerLocations
from mozrunner import CLI, FirefoxRunner

PORT = 8888

PATH_MAPPINGS = {
    "/webkit/PerformanceTests": "third_party/webkit/PerformanceTests",
    # It is tempting to map to `testing/talos/talos/tests` instead, to avoid
    # writing `tests/` in every path, but we can't do that because some files
    # refer to scripts located in `../..`.
    "/talos": "testing/talos/talos",
}

def get_crashreports(directory, name=None):
    rc = 0
    upload_path = os.environ.get("UPLOAD_PATH")
    if not upload_path:
        upload_path = os.environ.get("UPLOAD_DIR")
    if upload_path:
        # For automation, log the minidumps with stackwalk and get them moved to
        # the artifacts directory.
        fetches_dir = os.environ.get("MOZ_FETCHES_DIR")
        if not fetches_dir:
            raise Exception(
                "Unable to process minidump in automation because "
                "$MOZ_FETCHES_DIR is not set in the environment"
            )
        stackwalk_binary = os.path.join(
            fetches_dir, "minidump-stackwalk", "minidump-stackwalk"
        )
        if sys.platform == "win32":
            stackwalk_binary += ".exe"
        minidump_path = os.path.join(directory, "minidumps")
        rc = mozcrash.check_for_crashes(
            minidump_path,
            symbols_path=fetches_dir,
            stackwalk_binary=stackwalk_binary,
            dump_save_path=upload_path,
            test_name=name,
        )
    return rc

if __name__ == "__main__":
    cli = CLI()
    debug_args, interactive = cli.debugger_arguments()
    runner_args = cli.runner_args()

    build = MozbuildObject.from_environment()

    binary = runner_args.get("binary")
    if not binary:
        try:
            binary = build.get_binary_path(where="staged-package")
        except BinaryNotFoundException as e:
            print("{}\n\n{}\n".format(e, e.help()))
            sys.exit(1)
    binary = os.path.normpath(os.path.abspath(binary))

    path_mappings = {
        k: os.path.join(build.topsrcdir, v) for k, v in PATH_MAPPINGS.items()
    }
    httpd = MozHttpd(
        port=PORT,
        docroot=os.path.join(build.topsrcdir, "build", "pgo"),
        path_mappings=path_mappings,
    )
    httpd.start(block=False)

    sp3_httpd = MozHttpd(
        port=8000,
        docroot=os.path.join(
            build.topsrcdir, "third_party", "webkit", "PerformanceTests", "Speedometer3"
        ),
        path_mappings=path_mappings,
    )
    sp3_httpd.start(block=False)
    print("started SP3 server on port 8000")
    locations = ServerLocations()
    locations.add_host(host="127.0.0.1", port=PORT, options="primary,privileged")

    old_profraw_files = glob.glob("*.profraw")
    for f in old_profraw_files:
        os.remove(f)

    with TemporaryDirectory() as profilePath:
        # TODO: refactor this into mozprofile
        profile_data_dir = os.path.join(build.topsrcdir, "testing", "profiles")
        with open(os.path.join(profile_data_dir, "profiles.json"), "r") as fh:
            base_profiles = json.load(fh)["profileserver"]

        prefpaths = [
            os.path.join(profile_data_dir, profile, "user.js")
            for profile in base_profiles
        ]

        prefs = {}
        for path in prefpaths:
            prefs.update(Preferences.read_prefs(path))

        interpolation = {"server": "%s:%d" % httpd.httpd.server_address}
        sp3_interpolation = {"server": "%s:%d" % sp3_httpd.httpd.server_address}
        for k, v in prefs.items():
            if isinstance(v, str):
                v = v.format(**interpolation)
            prefs[k] = Preferences.cast(v)

        profile = FirefoxProfile(
            profile=profilePath,
            preferences=prefs,
            addons=[
                os.path.join(
                    build.topsrcdir, "tools", "quitter", "quitter@mozilla.org.xpi"
                )
            ],
            locations=locations,
        )

        env = os.environ.copy()
        env["MOZ_CRASHREPORTER_NO_REPORT"] = "1"
        env["MOZ_CRASHREPORTER_SHUTDOWN"] = "1"
        env["XPCOM_DEBUG_BREAK"] = "warn"
        # We disable sandboxing to make writing profiling data actually work
        # Bug 1553850 considers fixing this.
        env["MOZ_DISABLE_CONTENT_SANDBOX"] = "1"
        env["MOZ_DISABLE_RDD_SANDBOX"] = "1"
        env["MOZ_DISABLE_SOCKET_PROCESS_SANDBOX"] = "1"
        env["MOZ_DISABLE_GPU_SANDBOX"] = "1"
        env["MOZ_DISABLE_GMP_SANDBOX"] = "1"
        env["MOZ_DISABLE_VR_SANDBOX"] = "1"
        env["MOZ_DISABLE_UTILITY_SANDBOX"] = "1"

        # Ensure different pids write to different files
        env["LLVM_PROFILE_FILE"] = "default_%p_random_%m.profraw"

        # Write to an output file if we're running in automation
        process_args = {"universal_newlines": True}
        if "UPLOAD_PATH" in env:
            process_args["logfile"] = os.path.join(
                env["UPLOAD_PATH"], "profile-run-1.log"
            )

        # Run Firefox a first time to initialize its profile
        runner = FirefoxRunner(
            profile=profile,
            binary=binary,
            cmdargs=["data:text/html,"],
            env=env,
            process_args=process_args,
        )
        runner.start()
        ret = runner.wait()
        if ret:
            print("Firefox exited with code %d during profile initialization" % ret)
            logfile = process_args.get("logfile")
            if logfile:
                print("Firefox output (%s):" % logfile)
                with open(logfile) as f:
                    print(f.read())
            sp3_httpd.stop()
            httpd.stop()
            get_crashreports(profilePath, name="Profile initialization")
            sys.exit(ret)

        jarlog = os.getenv("JARLOG_FILE")
        if jarlog:
            env["MOZ_JAR_LOG_FILE"] = os.path.abspath(jarlog)
            print("jarlog: %s" % env["MOZ_JAR_LOG_FILE"])
            if os.path.exists(jarlog):
                os.remove(jarlog)

        if "UPLOAD_PATH" in env:
            process_args["logfile"] = os.path.join(
                env["UPLOAD_PATH"], "profile-run-2.log"
            )
        cmdargs = ["http://localhost:%d/index.html" % PORT]
        runner = FirefoxRunner(
            profile=profile,
            binary=binary,
            cmdargs=cmdargs,
            env=env,
            process_args=process_args,
        )
        runner.start(debug_args=debug_args, interactive=interactive)
        ret = runner.wait()
        sp3_httpd.stop()
        httpd.stop()
        if ret:
            print("Firefox exited with code %d during profiling" % ret)
            logfile = process_args.get("logfile")
            if logfile:
                print("Firefox output (%s):" % logfile)
                with open(logfile) as f:
                    print(f.read())
            get_crashreports(profilePath, name="Profiling run")
            sys.exit(ret)

        # Try to move the crash reports to the artifacts even if Firefox appears
        # to exit successfully, in case there's a crash that doesn't set the
        # return code to non-zero for some reason.
        if get_crashreports(profilePath, name="Firefox exited successfully?") != 0:
            print("Firefox exited successfully, but produced a crashreport")
            sys.exit(1)

        llvm_profdata = env.get("LLVM_PROFDATA")
        if llvm_profdata:
            profraw_files = glob.glob("*.profraw")
            if not profraw_files:
                print(
                    "Could not find profraw files in the current directory: %s"
                    % os.getcwd()
                )
                sys.exit(1)

            merged_profdata = "merged.profdata"
            merge_cmd = [
                llvm_profdata,
                "merge",
                "-o",
                merged_profdata,
            ] + profraw_files
            rc = subprocess.call(merge_cmd)
            if rc != 0:
                print("INFRA-ERROR: Failed to merge profile data. Corrupt profile?")
                # exit with TBPL_RETRY
                sys.exit(4)

            # llvm-profdata may fail while still exiting without an error.
            if not os.path.isfile(merged_profdata):
                print(merged_profdata, "was not created", file=sys.stderr)
                sys.exit(1)

            if os.path.getsize(merged_profdata) == 0:
                print(merged_profdata, "was created but it is empty", file=sys.stderr)
                sys.exit(1)

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