5 files changed, 865 insertions, 0 deletions
diff --git a/ci/boost/build.py b/ci/boost/build.py
new file mode 100755
index 0000000..8c8a818
--- /dev/null
+++ b/ci/boost/build.py
@@ -0,0 +1,375 @@
+#!/usr/bin/env python3
+
+# Copyright (c) 2019 Egor Tensin <Egor.Tensin@gmail.com>
+# This file is part of the "cmake-common" project.
+# For details, see https://github.com/egor-tensin/cmake-common.
+# Distributed under the MIT License.
+
+# This script downloads and builds the Boost libraries.
+
+import argparse
+from contextlib import contextmanager
+from enum import Enum
+import logging
+import os.path
+import platform
+import re
+import shutil
+import struct
+import subprocess
+import sys
+import tempfile
+import urllib.request
+
+
+@contextmanager
+def _chdir(path):
+    cwd = os.getcwd()
+    os.chdir(path)
+    try:
+        yield
+    finally:
+        os.chdir(cwd)
+
+
+def _setup_logging():
+    logging.basicConfig(
+        format='%(asctime)s | %(levelname)s | %(message)s',
+        level=logging.INFO)
+
+
+def _on_windows():
+    return platform.system() == 'Windows'
+
+
+def _run_executable(cmd_line):
+    logging.info('Running executable: %s', cmd_line)
+    result = subprocess.run(cmd_line)
+    result.check_returncode()
+
+
+class Platform(Enum):
+    X86 = 'x86'
+    X64 = 'x64'
+    WIN32 = 'win32'
+
+    def __str__(self):
+        return self.value
+
+    @staticmethod
+    def all():
+        return (Platform.X86, Platform.X64)
+
+    def get_address_model(self):
+        if self is Platform.X86:
+            return 32
+        if self is Platform.X64:
+            return 64
+        if self is Platform.WIN32:
+            return 32
+        raise NotImplementedError(f'unsupported platform: {self}')
+
+
+def _parse_platform(s):
+    try:
+        return Platform(s.lower())
+    except ValueError:
+        raise argparse.ArgumentTypeError(f'invalid platform: {s}')
+
+
+class Configuration(Enum):
+    DEBUG = 'debug'
+    RELEASE = 'release'
+
+    @staticmethod
+    def all():
+        return tuple(Configuration)
+
+    def __str__(self):
+        return self.value
+
+
+def _parse_configuration(s):
+    try:
+        return Configuration(s.lower())
+    except ValueError:
+        raise argparse.ArgumentTypeError(f'invalid configuration: {s}')
+
+
+class Linkage(Enum):
+    STATIC = 'static'
+    SHARED = 'shared'
+
+    @staticmethod
+    def all():
+        return tuple(Linkage)
+
+    def __str__(self):
+        return self.value
+
+
+def _parse_linkage(s):
+    try:
+        return Linkage(s)
+    except ValueError:
+        raise argparse.ArgumentTypeError(f'invalid linkage settings: {s}')
+
+
+class BoostVersion:
+    def __init__(self, major, minor, patch):
+        self.major = major
+        self.minor = minor
+        self.patch = patch
+
+    def __str__(self):
+        return f'{self.major}.{self.minor}.{self.patch}'
+
+    @property
+    def archive_ext(self):
+        return '.tar.gz'
+
+    def dir_path(self, parent_dir):
+        return os.path.join(parent_dir, self.dir_name)
+
+    @property
+    def dir_name(self):
+        return f'boost_{self.major}_{self.minor}_{self.patch}'
+
+    @property
+    def archive_name(self):
+        return f'{self.dir_name}{self.archive_ext}'
+
+    def get_download_url(self):
+        return f'https://dl.bintray.com/boostorg/release/{self}/source/{self.archive_name}'
+
+
+def _parse_boost_version(s):
+    result = re.match(r'^(\d+)\.(\d+)\.(\d+)$', s)
+    if result is None:
+        raise argparse.ArgumentTypeError(f'invalid Boost version: {s}')
+    return BoostVersion(result.group(1), result.group(2), result.group(3))
+
+
+class BoostArchive:
+    def __init__(self, version, path):
+        self.version = version
+        self.path = path
+
+    def __enter__(self):
+        return self
+
+    def __exit__(self, exc_type, exc_value, traceback):
+        logging.info('Removing temporary file: %s', self.path)
+        os.remove(self.path)
+
+    @property
+    def dir_name(self):
+        return self.version.dir_name
+
+    @staticmethod
+    def download(version):
+        path = None
+        with tempfile.NamedTemporaryFile(prefix='boost_', suffix=version.archive_ext, delete=False) as dest:
+            path = dest.name
+            logging.info('Downloading Boost to: %s', path)
+            url = version.get_download_url()
+            logging.info('Download URL: %s', url)
+
+            with urllib.request.urlopen(url) as request:
+                dest.write(request.read())
+        return BoostArchive(version, path)
+
+
+class BoostDir:
+    def __init__(self, path):
+        if not os.path.isdir(path):
+            raise RuntimeError(f"Boost directory doesn't exist: {path}")
+        self.path = path
+
+    @staticmethod
+    def unpack(archive, dest):
+        path = os.path.join(dest, archive.dir_name)
+        if os.path.exists(path):
+            raise RuntimeError(f'Boost directory already exists: {path}')
+        logging.info('Unpacking Boost to: %s', path)
+        shutil.unpack_archive(archive.path, dest)
+        return BoostDir(path)
+
+    def _go(self):
+        return _chdir(self.path)
+
+    def build(self, params):
+        with self._go():
+            self._bootstrap_if_required()
+            self._b2(params)
+
+    def _bootstrap_if_required(self):
+        if os.path.isfile(self._b2_path()):
+            logging.info('Not going to bootstrap, b2 is already there')
+            return
+        self._bootstrap()
+
+    def _bootstrap(self):
+        _run_executable(self._bootstrap_path())
+
+    def _b2(self, params):
+        for b2_params in params.enum_b2_params():
+            _run_executable([self._b2_path()] + b2_params)
+
+    @staticmethod
+    def _bootstrap_path():
+        return os.path.join('.', BoostDir._bootstrap_name())
+
+    @staticmethod
+    def _bootstrap_name():
+        ext = '.sh'
+        if _on_windows():
+            ext = '.bat'
+        return f'bootstrap{ext}'
+
+    @staticmethod
+    def _b2_path():
+        return os.path.join('.', BoostDir._b2_name())
+
+    @staticmethod
+    def _b2_name():
+        ext = ''
+        if _on_windows():
+            ext = '.exe'
+        return f'b2{ext}'
+
+
+class BoostBuild:
+    def __init__(self, args):
+        self.toolchain = args.toolchain
+        self.platforms = args.platforms or Platform.all()
+        self.configurations = args.configurations or Configuration.all()
+        self.runtime_link = args.runtime_link or Linkage.all()
+        self.link = args.link or Linkage.all()
+        self.libraries = args.libraries
+        self.b2_args = args.b2_args
+
+    def enum_b2_params(self):
+        for platform in self.platforms:
+            platform_params = []
+            platform_params.append(self._address_model(platform))
+            platform_params.append(self._runtime_link())
+            platform_params.append(self._link())
+            platform_params += self._user_config_optional()
+            platform_params += self._with_optional()
+            platform_params += self.b2_args
+            if _on_windows():
+                platform_params.append(self._windows_stagedir(platform))
+                platform_params.append(self._windows_variant(self.configurations))
+                yield platform_params
+            else:
+                for configuration in self.configurations:
+                    variant_params = list(platform_params)
+                    variant_params.append(self._unix_stagedir(platform, configuration))
+                    variant_params.append(self._unix_variant(configuration))
+                    yield variant_params
+
+    @staticmethod
+    def _address_model(platform):
+        return f'address-model={platform.get_address_model()}'
+
+    def _runtime_link(self):
+        link = ','.join(map(str, self.runtime_link))
+        return f'runtime-link={link}'
+
+    def _link(self):
+        link = ','.join(map(str, self.link))
+        return f'link={link}'
+
+    def _user_config_optional(self):
+        if self.toolchain is None:
+            return []
+        return [f'--user-config={self.toolchain}']
+
+    def _with_optional(self):
+        return [f'--with-{lib}' for lib in self.libraries]
+
+    @staticmethod
+    def _windows_stagedir(platform):
+        return f'--stagedir=stage/{platform}'
+
+    @staticmethod
+    def _unix_stagedir(platform, configuration):
+        return f'--stagedir=stage/{platform}/{configuration}'
+
+    @staticmethod
+    def _windows_variant(configurations):
+        variant = ','.join(map(str, configurations))
+        return f'variant={variant}'
+
+    @staticmethod
+    def _unix_variant(configuration):
+        return f'variant={configuration}'
+
+
+def _parse_args(argv=None):
+    if argv is None:
+        argv = sys.argv[1:]
+    logging.info('Command line arguments: %s', argv)
+    parser = argparse.ArgumentParser()
+    parser.add_argument('--version', metavar='VERSION', dest='boost_version',
+                        type=_parse_boost_version, required=True,
+                        help='Boost version (in the MAJOR.MINOR.PATCH format)')
+    parser.add_argument('--no-download', action='store_true',
+                        help="don't download Boost, attempt to build the existing directory")
+    parser.add_argument('--toolchain', metavar='PATH',
+                        help='Boost user configuration file')
+    parser.add_argument('--platform', metavar='PLATFORM',
+                        nargs='*', dest='platforms', default=(),
+                        type=_parse_platform,
+                        help='target platform (e.g. x86/x64)')
+    parser.add_argument('--configuration', metavar='CONFIGURATION',
+                        nargs='*', dest='configurations', default=(),
+                        type=_parse_configuration,
+                        help='target platform (e.g. Debug/Release)')
+    parser.add_argument('--runtime-link', metavar='LINKAGE',
+                        nargs='*', dest='runtime_link', default=(),
+                        type=_parse_linkage,
+                        help='runtime linkage options (e.g. static/shared)')
+    parser.add_argument('--link', metavar='LINKAGE',
+                        nargs='*', dest='link', default=(),
+                        type=_parse_linkage,
+                        help='library linkage options (e.g. static/shared)')
+    parser.add_argument('--build', metavar='DIR', dest='build_dir',
+                        type=os.path.abspath, default='.',
+                        help='destination directory')
+    parser.add_argument('--with', metavar='LIB', dest='libraries',
+                        nargs='*', default=(),
+                        help='only build these libraries')
+    parser.add_argument('b2_args', nargs='*', metavar='B2_ARG', default=(),
+                        help='additional b2 arguments, to be passed verbatim')
+    return parser.parse_args(argv)
+
+
+def _build(boost_dir, build_params):
+    boost_dir.build(build_params)
+
+
+def download_and_build(argv=None):
+    args = _parse_args(argv)
+    build_params = BoostBuild(args)
+    if args.no_download:
+        boost_dir = BoostDir(args.boost_version.dir_path(args.build_dir))
+        _build(boost_dir, build_params)
+    else:
+        with BoostArchive.download(args.boost_version) as archive:
+            boost_dir = BoostDir.unpack(archive, args.build_dir)
+            _build(boost_dir, build_params)
+
+
+def main(argv=None):
+    _setup_logging()
+    try:
+        download_and_build(argv)
+    except Exception as e:
+        logging.exception(e)
+        raise
+
+
+if __name__ == '__main__':
+    main()
diff --git a/ci/boost/build_travis.py b/ci/boost/build_travis.py
new file mode 100755
index 0000000..8e78f72
--- /dev/null
+++ b/ci/boost/build_travis.py
@@ -0,0 +1,76 @@
+#!/usr/bin/env python3
+
+# Copyright (c) 2019 Egor Tensin <Egor.Tensin@gmail.com>
+# This file is part of the "cmake-common" project.
+# For details, see https://github.com/egor-tensin/cmake-common.
+# Distributed under the MIT License.
+
+# This is similar to build.py, but auto-fills some parameters for build.py from
+# the Travis-defined environment variables.
+# Boost is built in $HOME.
+
+import logging
+import os
+import sys
+
+from build import download_and_build
+
+
+def _env(name):
+    if name not in os.environ:
+        raise RuntimeError(f'undefined environment variable: {name}')
+    return os.environ[name]
+
+
+def _check_travis():
+    if 'TRAVIS' not in os.environ:
+        raise RuntimeError('not running on Travis')
+
+
+def _get_build_dir():
+    return _env('HOME')
+
+
+def _get_boost_version():
+    return _env('travis_boost_version')
+
+
+def _get_configuration():
+    return _env('configuration')
+
+
+def _get_platform():
+    return _env('platform')
+
+
+def _setup_logging():
+    logging.basicConfig(
+        format='%(asctime)s | %(levelname)s | %(message)s',
+        level=logging.INFO)
+
+
+def build_travis(argv=None):
+    if argv is None:
+        argv = sys.argv[1:]
+    logging.info('Command line arguments: %s', argv)
+    _check_travis()
+    travis_argv = [
+        '--build', _get_build_dir(),
+        '--version', _get_boost_version(),
+        '--configuration', _get_configuration(),
+        '--platform', _get_platform(),
+    ]
+    download_and_build(travis_argv + argv)
+
+
+def main(argv=None):
+    _setup_logging()
+    try:
+        build_travis(argv)
+    except Exception as e:
+        logging.exception(e)
+        raise
+
+
+if __name__ == '__main__':
+    main()
diff --git a/ci/build.py b/ci/build.py
new file mode 100755
index 0000000..dd88156
--- /dev/null
+++ b/ci/build.py
@@ -0,0 +1,222 @@
+#!/usr/bin/env python3
+
+# Copyright (c) 2019 Egor Tensin <Egor.Tensin@gmail.com>
+# This file is part of the "cmake-common" project.
+# For details, see https://github.com/egor-tensin/cmake-common.
+# Distributed under the MIT License.
+
+# This script is used basically to invoke the CMake executable in a
+# cross-platform way (provided the platform has Python 3, of course).
+# The motivation was to merge my Travis and AppVeyor build scripts (largely
+# similar, but written in bash and PowerShell, respectively).
+
+import argparse
+from contextlib import contextmanager
+import logging
+from enum import Enum
+import os
+import os.path
+import shutil
+import subprocess
+import sys
+import tempfile
+
+
+def _make_tmp_dir(**kwargs):
+    path = tempfile.mkdtemp(**kwargs)
+    logging.info('Created temporary directory: %s', path)
+    return path
+
+
+def _log_rmtree_error(function, path, exc_info):
+    logging.error("Couldn't remove path '%s': %s", path, exc_info)
+
+
+def _remove_dir(path):
+    logging.info('Removing directory: %s', path)
+    shutil.rmtree(path, onerror=_log_rmtree_error)
+
+
+def _run_executable(cmd_line):
+    logging.info('Running executable: %s', cmd_line)
+    result = subprocess.run(cmd_line)
+    result.check_returncode()
+
+
+def _run_cmake(cmake_args):
+    _run_executable(['cmake'] + cmake_args)
+
+
+class Configuration(Enum):
+    DEBUG = 'Debug'
+    RELEASE = 'Release'
+
+    def __str__(self):
+        return self.value
+
+
+def _parse_configuration(s):
+    try:
+        return Configuration(s)
+    except ValueError:
+        raise argparse.ArgumentTypeError(f'invalid configuration: {s}')
+
+
+class BuildDir:
+    def __init__(self, args):
+        self.path = args.build_dir
+        self.clean = args.clean_build_dir
+        self.tmp_dir = self.path is None
+        if self.tmp_dir:
+            self.path = self._make_build_dir()
+
+    @staticmethod
+    def _make_build_dir():
+        return _make_tmp_dir(prefix='build_')
+
+    def __enter__(self):
+        return self
+
+    def __exit__(self, *args):
+        if self.tmp_dir and self.clean:
+            _remove_dir(self.path)
+
+
+class GenerationPhase:
+    def __init__(self, build_dir, args):
+        self.build_dir = build_dir
+        self.args = args
+
+    def _cmake_args(self):
+        return self._to_cmake_args(self.build_dir, self.args)
+
+    @staticmethod
+    def _to_cmake_args(build_dir, args):
+        result = []
+        if args.generator is not None:
+            result += ['-G', args.generator]
+        if args.platform is not None:
+            result += ['-A', args.platform]
+        if args.install_dir is not None:
+            result.append(f'-DCMAKE_INSTALL_PREFIX={args.install_dir}')
+        if args.configuration is not None:
+            result.append(f'-DCMAKE_BUILD_TYPE={args.configuration}')
+        if args.toolchain_path is not None:
+            result.append(f'-DCMAKE_TOOLCHAIN_FILE={args.toolchain_path}')
+        if args.boost_root is not None:
+            result.append(f'-DBOOST_ROOT={args.boost_root}')
+        if args.boost_librarydir is not None:
+            result.append(f'-DBOOST_LIBRARYDIR={args.boost_librarydir}')
+        if args.cmake_args is not None:
+            result += [arg for arg in args.cmake_args]
+        result += [f'-B{build_dir.path}']
+        result += [f'-H{args.src_dir}']
+        return result
+
+    def run(self):
+        _run_cmake(self._cmake_args())
+
+
+class BuildPhase:
+    def __init__(self, build_dir, args):
+        self.build_dir = build_dir
+        self.args = args
+
+    def _cmake_args(self):
+        return self._to_cmake_args(self.build_dir, self.args)
+
+    @staticmethod
+    def _to_cmake_args(build_dir, args):
+        result = ['--build', build_dir.path]
+        if args.clean_build_dir:
+            result.append('--clean-first')
+        if args.configuration is not None:
+            result += ['--config', str(args.configuration)]
+        if args.install_dir is not None:
+            result += ['--target', 'install']
+        return result
+
+    def run(self):
+        _run_cmake(self._cmake_args())
+
+
+class CleanPhase:
+    def __init__(self, build_dir, args):
+        self.build_dir = build_dir
+        self.args = args
+
+    def _cmake_args(self):
+        return self._to_cmake_args(self.build_dir, self.args)
+
+    @staticmethod
+    def _to_cmake_args(build_dir, args):
+        result = ['--build', build_dir.path]
+        if args.configuration is not None:
+            result += ['--config', str(args.configuration)]
+        result += ['--target', 'clean']
+        return result
+
+    def run(self):
+        if self.args.clean_build_dir:
+            _run_cmake(self._cmake_args())
+
+
+def _parse_args(argv=None):
+    if argv is None:
+        argv = sys.argv[1:]
+    logging.info('Command line arguments: %s', argv)
+    parser = argparse.ArgumentParser(description='Build a CMake project')
+    parser.add_argument('--src', required=True, dest='src_dir',
+                        type=os.path.abspath, metavar='DIR',
+                        help='source directory')
+    parser.add_argument('--build', metavar='DIR', dest='build_dir',
+                        help='build directory (temporary directory if not specified)')
+    parser.add_argument('--install', metavar='DIR', dest='install_dir',
+                        help='install directory')
+    parser.add_argument('--clean', action='store_true', dest='clean_build_dir',
+                        help='clean the build directory (temporary directory will be removed)')
+    parser.add_argument('--generator', help='build system to use')
+    parser.add_argument('--platform', help='target platform (i.e. Win32/x64)')
+    parser.add_argument('--configuration', metavar='CONFIG',
+                        type=_parse_configuration,
+                        help='build configuration (i.e. Debug/Release)')
+    parser.add_argument('--toolchain', metavar='PATH', dest='toolchain_path',
+                        help='CMake toolchain file path')
+    parser.add_argument('--boost', metavar='DIR', dest='boost_root',
+                        help='set Boost directory')
+    parser.add_argument('--boost-librarydir', metavar='DIR',
+                        help='set Boost library directory (stage/lib by default)')
+    parser.add_argument('cmake_args', nargs='*', metavar='CMAKE_ARG',
+                        help='additional CMake arguments, to be passed verbatim')
+    args = parser.parse_args(argv)
+    return args
+
+
+def _setup_logging():
+    logging.basicConfig(
+        format='%(asctime)s | %(levelname)s | %(message)s',
+        level=logging.INFO)
+
+
+def build(argv=None):
+    args = _parse_args(argv)
+    with BuildDir(args) as build_dir:
+        gen_phase = GenerationPhase(build_dir, args)
+        gen_phase.run()
+        build_phase = BuildPhase(build_dir, args)
+        build_phase.run()
+        clean_phase = CleanPhase(build_dir, args)
+        clean_phase.run()
+
+
+def main(argv=None):
+    _setup_logging()
+    try:
+        build(argv)
+    except Exception as e:
+        logging.exception(e)
+        raise
+
+
+if __name__ == '__main__':
+    main()
diff --git a/ci/build_appveyor.py b/ci/build_appveyor.py
new file mode 100755
index 0000000..2d2ee65
--- /dev/null
+++ b/ci/build_appveyor.py
@@ -0,0 +1,131 @@
+#!/usr/bin/env python3
+
+# Copyright (c) 2019 Egor Tensin <Egor.Tensin@gmail.com>
+# This file is part of the "cmake-common" project.
+# For details, see https://github.com/egor-tensin/cmake-common.
+# Distributed under the MIT License.
+
+# This is similar to build.py, but auto-fills some parameters for build.py from
+# the AppVeyor-defined environment variables.
+# The project is built in C:\Projects\build.
+
+from enum import Enum
+import logging
+import os
+import sys
+
+from build import build
+
+
+class Image(Enum):
+    VS_2013 = 'Visual Studio 2013'
+    VS_2015 = 'Visual Studio 2015'
+    VS_2017 = 'Visual Studio 2017'
+    VS_2019 = 'Visual Studio 2019'
+
+    def __str__(self):
+        return self.value
+
+
+def _parse_image(s):
+    try:
+        return Image(s)
+    except ValueError as e:
+        raise ValueError(f'unsupported AppVeyor image: {s}') from e
+
+
+class Generator(Enum):
+    VS_2013 = 'Visual Studio 12 2013'
+    VS_2015 = 'Visual Studio 14 2015'
+    VS_2017 = 'Visual Studio 15 2017'
+    VS_2019 = 'Visual Studio 16 2019'
+
+    def __str__(self):
+        return self.value
+
+    @staticmethod
+    def from_image(image):
+        if image is Image.VS_2013:
+            return Generator.VS_2013
+        if image is Image.VS_2015:
+            return Generator.VS_2015
+        if image is Image.VS_2017:
+            return Generator.VS_2017
+        if image is Image.VS_2019:
+            return Generator.VS_2019
+        raise RuntimeError(f"don't know which generator to use for image: {image}")
+
+
+class Platform(Enum):
+    x86 = 'Win32'
+    X64 = 'x64'
+
+    def __str__(self):
+        return self.value
+
+
+def _parse_platform(s):
+    try:
+        return Platform(s)
+    except ValueError as e:
+        raise ValueError(f'unsupported AppVeyor platform: {s}') from e
+
+
+def _env(name):
+    if name not in os.environ:
+        raise RuntimeError(f'undefined environment variable: {name}')
+    return os.environ[name]
+
+
+def _get_src_dir():
+    return _env('APPVEYOR_BUILD_FOLDER')
+
+
+def _get_build_dir():
+    return R'C:\Projects\build'
+
+
+def _get_generator():
+    image = _parse_image(_env('APPVEYOR_BUILD_WORKER_IMAGE'))
+    return str(Generator.from_image(image))
+
+
+def _get_platform():
+    return str(_parse_platform(_env('PLATFORM')))
+
+
+def _get_configuration():
+    return _env('CONFIGURATION')
+
+
+def _setup_logging():
+    logging.basicConfig(
+        format='%(asctime)s | %(levelname)s | %(message)s',
+        level=logging.INFO)
+
+
+def build_appveyor(argv=None):
+    if argv is None:
+        argv = sys.argv[1:]
+    logging.info('Command line arguments: %s', argv)
+    appveyor_argv = [
+        '--src', _get_src_dir(),
+        '--build', _get_build_dir(),
+        '--generator', _get_generator(),
+        '--platform', _get_platform(),
+        '--configuration', _get_configuration(),
+    ]
+    build(appveyor_argv + argv)
+
+
+def main(argv=None):
+    _setup_logging()
+    try:
+        build_appveyor(argv)
+    except Exception as e:
+        logging.exception(e)
+        raise
+
+
+if __name__ == '__main__':
+    main()
diff --git a/ci/build_travis.py b/ci/build_travis.py
new file mode 100755
index 0000000..dce7fd7
--- /dev/null
+++ b/ci/build_travis.py
@@ -0,0 +1,61 @@
+#!/usr/bin/env python3
+
+# Copyright (c) 2019 Egor Tensin <Egor.Tensin@gmail.com>
+# This file is part of the "cmake-common" project.
+# For details, see https://github.com/egor-tensin/cmake-common.
+# Distributed under the MIT License.
+
+# This is similar to build.py, but auto-fills some parameters for build.py from
+# the Travis-defined environment variables.
+# The project is built in $HOME/build.
+
+import logging
+import os
+import os.path
+import sys
+
+from build import build
+
+
+def _env(name):
+    if name not in os.environ:
+        raise RuntimeError(f'undefined environment variable: {name}')
+    return os.environ[name]
+
+
+def _get_src_dir():
+    return _env('TRAVIS_BUILD_DIR')
+
+
+def _get_build_dir():
+    return os.path.join(_env('HOME'), 'build')
+
+
+def _setup_logging():
+    logging.basicConfig(
+        format='%(asctime)s | %(levelname)s | %(message)s',
+        level=logging.INFO)
+
+
+def build_travis(argv=None):
+    if argv is None:
+        argv = sys.argv[1:]
+    logging.info('Command line arguments: %s', argv)
+    travis_argv = [
+        '--src', _get_src_dir(),
+        '--build', _get_build_dir(),
+    ]
+    build(travis_argv + argv)
+
+
+def main(argv=None):
+    _setup_logging()
+    try:
+        build_travis(argv)
+    except Exception as e:
+        logging.exception(e)
+        raise
+
+
+if __name__ == '__main__':
+    main()