9 files changed, 675 insertions, 0 deletions
diff --git a/cmake/build/build.py b/cmake/build/build.py
new file mode 100755
index 0000000..0e352c3
--- /dev/null
+++ b/cmake/build/build.py
@@ -0,0 +1,199 @@
+#!/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
+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)
+    return subprocess.run(cmd_line, check=True)
+
+
+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.install_dir is not None:
+            result += ['-D', f'CMAKE_INSTALL_PREFIX={args.install_dir}']
+        if args.configuration is not None:
+            result += ['-D', f'CMAKE_BUILD_TYPE={args.configuration}']
+        if args.cmake_args is not None:
+            result += args.cmake_args
+        result += [f'-B{build_dir.path}', 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.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, metavar='DIR', dest='src_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('--configuration', metavar='CONFIG',
+                        type=_parse_configuration, default=Configuration.DEBUG,
+                        help='build configuration (i.e. Debug/Release)')
+    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/cmake/build/ci/appveyor.py b/cmake/build/ci/appveyor.py
new file mode 100755
index 0000000..38d0d7e
--- /dev/null
+++ b/cmake/build/ci/appveyor.py
@@ -0,0 +1,157 @@
+#!/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.
+
+import argparse
+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 _check_appveyor():
+    if 'APPVEYOR' not in os.environ:
+        raise RuntimeError('not running on AppVeyor')
+
+
+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 _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 on AppVeyor')
+    parser.add_argument('--install', metavar='DIR', dest='install_dir',
+                        help='install directory')
+    parser.add_argument('cmake_args', nargs='*', metavar='CMAKE_ARG', default=[],
+                        help='additional CMake arguments, to be passed verbatim')
+    return parser.parse_args(argv)
+
+
+def build_appveyor(argv=None):
+    args = _parse_args(argv)
+    _check_appveyor()
+
+    appveyor_argv = [
+        '--src', _get_src_dir(),
+        '--build', _get_build_dir(),
+        '--configuration', _get_configuration(),
+    ]
+    if args.install_dir is not None:
+        appveyor_argv += [
+            '--install', args.install_dir,
+        ]
+    appveyor_argv += [
+        '--',
+        '-G', _get_generator(),
+        '-A', _get_platform(),
+    ]
+    build(appveyor_argv + args.cmake_args)
+
+
+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/cmake/build/ci/travis.py b/cmake/build/ci/travis.py
new file mode 100755
index 0000000..25dbe70
--- /dev/null
+++ b/cmake/build/ci/travis.py
@@ -0,0 +1,90 @@
+#!/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 argparse
+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 _check_travis():
+    if 'TRAVIS' not in os.environ:
+        raise RuntimeError('not running on Travis')
+
+
+def _get_src_dir():
+    return _env('TRAVIS_BUILD_DIR')
+
+
+def _get_build_dir():
+    return os.path.join(_env('HOME'), 'build')
+
+
+def _get_configuration():
+    return _env('configuration')
+
+
+def _setup_logging():
+    logging.basicConfig(
+        format='%(asctime)s | %(levelname)s | %(message)s',
+        level=logging.INFO)
+
+
+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 on Travis')
+    parser.add_argument('--install', metavar='DIR', dest='install_dir',
+                        help='install directory')
+    parser.add_argument('cmake_args', nargs='*', metavar='CMAKE_ARG', default=[],
+                        help='additional CMake arguments, to be passed verbatim')
+    return parser.parse_args(argv)
+
+
+def build_travis(argv=None):
+    args = _parse_args(argv)
+    _check_travis()
+
+    travis_argv = [
+        '--src', _get_src_dir(),
+        '--build', _get_build_dir(),
+        '--configuration', _get_configuration(),
+    ]
+    if args.install_dir is not None:
+        travis_argv += [
+            '--install', args.install_dir,
+        ]
+    travis_argv.append('--')
+    build(travis_argv + args.cmake_args)
+
+
+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/cmake/common.cmake b/cmake/common.cmake
new file mode 100644
index 0000000..447f340
--- /dev/null
+++ b/cmake/common.cmake
@@ -0,0 +1,212 @@
+# Copyright (c) 2017 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.
+
+# It's a CMake code snippet I use in all of my CMake projects.
+# It makes targets link the runtime statically by default, strips debug symbols
+# in release builds and sets a couple of useful compilation options.
+
+# Add this to the top-level CMakeLists.txt (unless a higher version has already
+# been specified):
+#
+#     cmake_minimum_required(VERSION 3.1)
+
+# Without this policy set, this line:
+#
+#     if(toolset STREQUAL "MSVC")
+#
+# evaluates to false even when using Visual Studio (since MSVC is a predefined
+# variable; it's completely bonkers).
+if(NOT POLICY CMP0054)
+    message(FATAL_ERROR "common.cmake uses CMP0054, which is unsupported by this CMake version")
+endif()
+cmake_policy(SET CMP0054 NEW)
+
+# Toolset identification:
+
+if(CMAKE_C_COMPILER_ID)
+    set(toolset "${CMAKE_C_COMPILER_ID}")
+elseif(CMAKE_CXX_COMPILER_ID)
+    set(toolset "${CMAKE_CXX_COMPILER_ID}")
+else()
+    set(toolset "unknown")
+endif()
+
+if(toolset STREQUAL "GNU")
+    set(is_gcc ON)
+elseif(toolset STREQUAL "MSVC")
+    set(is_msvc ON)
+else()
+    message(WARNING "Unrecognized toolset: ${toolset}")
+endif()
+
+# User-defined switches:
+
+set(default_value ON)
+get_directory_property(parent_dir PARENT_DIRECTORY)
+if(parent_dir)
+    set(default_value OFF)
+endif()
+
+if(NOT DEFINED CC_CXX_STANDARD)
+    set(CC_CXX_STANDARD "14" CACHE STRING "C++ standard version")
+endif()
+if(NOT DEFINED CC_BEST_PRACTICES)
+    option(CC_BEST_PRACTICES "Set common compiler options" "${default_value}")
+endif()
+if(NOT DEFINED CC_WINDOWS_DEF)
+    option(CC_WINDOWS_DEF "Define useful Windows macros" "${default_value}")
+endif()
+if(NOT DEFINED CC_STATIC_RUNTIME)
+    set(static_runtime_default_value "${default_value}")
+    if(UNIX)
+        set(static_runtime_default_value OFF)
+    endif()
+    option(CC_STATIC_RUNTIME "Link the runtime statically" "${static_runtime_default_value}")
+endif()
+if(NOT DEFINED CC_STRIP_SYMBOLS)
+    option(CC_STRIP_SYMBOLS  "Strip debug symbols" "${default_value}")
+endif()
+
+option(Boost_USE_STATIC_LIBS "Use the static Boost libraries" "${default_value}")
+option(Boost_USE_STATIC_RUNTIME "Use Boost libraries linked to the runtime statically" "${CC_STATIC_RUNTIME}")
+
+message(STATUS "Toolset:                        ${toolset}")
+message(STATUS "C++ standard:                   ${CC_CXX_STANDARD}")
+message(STATUS "Set common compiler options:    ${CC_BEST_PRACTICES}")
+message(STATUS "Define useful Windows macros:   ${CC_WINDOWS_DEF}")
+message(STATUS "Use the static Boost libraries: ${Boost_USE_STATIC_LIBS}")
+message(STATUS "Link the runtime statically:    ${CC_STATIC_RUNTIME}")
+message(STATUS "Strip symbols:                  ${CC_STRIP_SYMBOLS}")
+
+# C++ standard version:
+
+set(CMAKE_CXX_STANDARD "${CC_CXX_STANDARD}")
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+set(CMAKE_CXX_EXTENSIONS OFF)
+
+# Common compiler options routines:
+
+function(_cc_best_practices_msvc target)
+    set(compile_options /MP /W4)
+    get_target_property(target_type "${target}" TYPE)
+    if(NOT target_type STREQUAL "INTERFACE_LIBRARY")
+        target_compile_options("${target}" PRIVATE ${compile_options})
+    endif()
+endfunction()
+
+function(_cc_best_practices_gcc target)
+    set(compile_options -Wall -Wextra)
+    get_target_property(target_type "${target}" TYPE)
+    if(NOT target_type STREQUAL "INTERFACE_LIBRARY")
+        target_compile_options("${target}" PRIVATE ${compile_options})
+    endif()
+endfunction()
+
+function(_cc_best_practices target)
+    if(is_msvc)
+        _cc_best_practices_msvc("${target}")
+    elseif(is_gcc)
+        _cc_best_practices_gcc("${target}")
+    endif()
+endfunction()
+
+# Useful Windows macros routines:
+
+function(_cc_common_windows_definitions target)
+    set(compile_definitions WIN32_LEAN_AND_MEAN NOMINMAX)
+    get_target_property(target_type "${target}" TYPE)
+    if(target_type STREQUAL "INTERFACE_LIBRARY")
+        target_compile_definitions("${target}" INTERFACE ${compile_definitions})
+    else()
+        target_compile_definitions("${target}" PRIVATE ${compile_definitions})
+    endif()
+endfunction()
+
+# Static runtime routines:
+
+function(_cc_static_runtime_msvc target)
+    get_target_property(target_type "${target}" TYPE)
+    if(NOT target_type STREQUAL "INTERFACE_LIBRARY")
+        target_compile_options("${target}" PRIVATE
+            $<$<CONFIG:Debug>:/MTd>
+            $<$<NOT:$<CONFIG:Debug>>:/MT>)
+    endif()
+endfunction()
+
+function(_cc_static_runtime_gcc target)
+    get_target_property(target_type "${target}" TYPE)
+    if(target_type STREQUAL "EXECUTABLE")
+        # This causes issues with mixing keyword- and plain- versions of
+        # target_link_libraries:
+        #target_link_libraries("${target}" PRIVATE -static)
+
+        set_property(TARGET "${target}" APPEND_STRING PROPERTY LINK_FLAGS " -static")
+
+        # Or (haven't tested this), if CMake 3.13+ is used:
+        #target_link_options("${target}" PRIVATE -static)
+    endif()
+endfunction()
+
+function(_cc_static_runtime target)
+    if(is_msvc)
+        _cc_static_runtime_msvc("${target}")
+    elseif(is_gcc)
+        _cc_static_runtime_gcc("${target}")
+    endif()
+endfunction()
+
+# Symbol stripping routines:
+
+function(_cc_strip_symbols_gcc target)
+    get_target_property(target_type "${target}" TYPE)
+    if(NOT target_type STREQUAL "INTERFACE_LIBRARY")
+        set(release_build $<OR:$<CONFIG:Release>,$<CONFIG:MinSizeRel>>)
+        if(release_build)
+            # This causes issues with mixing keyword- and plain- versions of
+            # target_link_libraries:
+            #target_link_libraries("${target}" PRIVATE -s)
+
+            set_property(TARGET "${target}" APPEND_STRING PROPERTY LINK_FLAGS " -s")
+        endif()
+    endif()
+endfunction()
+
+function(_cc_strip_symbols target)
+    if(is_gcc)
+        _cc_strip_symbols_gcc("${target}")
+    endif()
+endfunction()
+
+# Main macros:
+
+function(_cc_apply_settings target)
+    if(TARGET "${target}")
+        get_target_property(target_imported "${target}" IMPORTED)
+        if(NOT target_imported)
+            if(CC_BEST_PRACTICES)
+                _cc_best_practices("${target}")
+            endif()
+            if(CC_WINDOWS_DEF)
+                _cc_common_windows_definitions("${target}")
+            endif()
+            if(CC_STRIP_SYMBOLS)
+                _cc_strip_symbols("${target}")
+            endif()
+            if(CC_STATIC_RUNTIME)
+                _cc_static_runtime("${target}")
+            endif()
+        endif()
+    endif()
+endfunction()
+
+macro(add_executable target)
+    _add_executable(${ARGV})
+    _cc_apply_settings("${target}")
+endmacro()
+
+macro(add_library target)
+    _add_library(${ARGV})
+    _cc_apply_settings("${target}")
+endmacro()
diff --git a/cmake/toolchains/README.md b/cmake/toolchains/README.md
new file mode 100644
index 0000000..0e46391
--- /dev/null
+++ b/cmake/toolchains/README.md
@@ -0,0 +1,3 @@
+Use the toolchain files by passing something like
+`-DCMAKE_TOOLCHAIN_FILE=path/to/cmake-common/toolchains/toolchain.cmake` to
+`cmake`.
diff --git a/cmake/toolchains/gcc-x64.cmake b/cmake/toolchains/gcc-x64.cmake
new file mode 100644
index 0000000..2f7019e
--- /dev/null
+++ b/cmake/toolchains/gcc-x64.cmake
@@ -0,0 +1,4 @@
+set(CMAKE_C_COMPILER gcc)
+set(CMAKE_C_FLAGS -m64)
+set(CMAKE_CXX_COMIPLER g++)
+set(CMAKE_CXX_FLAGS -m64)
diff --git a/cmake/toolchains/gcc-x86.cmake b/cmake/toolchains/gcc-x86.cmake
new file mode 100644
index 0000000..e2e84be
--- /dev/null
+++ b/cmake/toolchains/gcc-x86.cmake
@@ -0,0 +1,4 @@
+set(CMAKE_C_COMPILER gcc)
+set(CMAKE_C_FLAGS -m32)
+set(CMAKE_CXX_COMIPLER g++)
+set(CMAKE_CXX_FLAGS -m32)
diff --git a/cmake/toolchains/mingw-w64-x64.cmake b/cmake/toolchains/mingw-w64-x64.cmake
new file mode 100644
index 0000000..6009edf
--- /dev/null
+++ b/cmake/toolchains/mingw-w64-x64.cmake
@@ -0,0 +1,3 @@
+set(CMAKE_C_COMPILER   x86_64-w64-mingw32-gcc)
+set(CMAKE_CXX_COMPILER x86_64-w64-mingw32-g++)
+set(CMAKE_RC_COMILER   x86_64-w64-mingw32-windres)
diff --git a/cmake/toolchains/mingw-w64-x86.cmake b/cmake/toolchains/mingw-w64-x86.cmake
new file mode 100644
index 0000000..b0c717f
--- /dev/null
+++ b/cmake/toolchains/mingw-w64-x86.cmake
@@ -0,0 +1,3 @@
+set(CMAKE_C_COMPILER   i686-w64-mingw32-gcc)
+set(CMAKE_CXX_COMPILER i686-w64-mingw32-g++)
+set(CMAKE_RC_COMILER   i686-w64-mingw32-windres)