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@Talkless
Created October 20, 2020 05:26
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WIP Google ORTools Conan pacakge
from conans import ConanFile, CMake, tools
from conans.errors import ConanInvalidConfiguration
import fnmatch
import os
class ORToolsConan(ConanFile):
name = "ortools"
version = "7.7"
license = "Apache License 2.0"
url = "https://github.com/google/or-tools/"
description = "Google Optimization Tools"
settings = "os", "compiler", "build_type", "arch"
requires = ["abseil/20200225.3@",
"gflags/2.2.2@",
"glog/0.4.0@",
"zlib/1.2.11@",
"protobuf/3.11.4@"]
#build_requires = "protoc_installer/3.9.1@bincrafters/stable",
generators = "cmake_find_package_multi"
options = {
"shared": [True, False],
"fPIC": [True, False]
}
default_options = {'shared': False, 'fPIC': True}
@property
def _archive_url(self):
return "https://github.com/google/or-tools/archive/v7.7.tar.gz"
@property
def source_subfolder(self):
return "source_subfolder"
def config_options(self):
if self.settings.os == "Windows":
del self.options.fPIC
def configure(self):
if self.settings.os == "Windows" and self.options.shared:
raise ConanInvalidConfiguration("Shared build is not supported on Windows by upstream")
def source(self):
tools.get(self._archive_url)
archive = "or-tools-{}".format(self.version)
os.rename(archive, self.source_subfolder)
for root, _, files in os.walk(self.source_subfolder):
for filename in files:
if fnmatch.fnmatch(filename, "*.cmake") or filename == "CMakeLists.txt":
full_filename = os.path.join(root, filename)
# No need after abseil Conan package introduced components!
#tools.replace_in_file(full_filename, "abseil::abseil", "absl::absl", False)
#tools.replace_in_file(full_filename, "absl::any", "absl::absl", False)
#tools.replace_in_file(full_filename, "absl::base", "absl::absl", False)
#tools.replace_in_file(full_filename, "absl::cord", "absl::absl", False)
#tools.replace_in_file(full_filename, "absl::random_random", "absl::absl", False)
#tools.replace_in_file(full_filename, "absl::status", "absl::absl", False)
#tools.replace_in_file(full_filename, "absl::container", "absl::absl", False)
#tools.replace_in_file(full_filename, "absl::hash", "absl::absl", False)
#tools.replace_in_file(full_filename, "absl::memory", "absl::absl", False)
#tools.replace_in_file(full_filename, "absl::meta", "absl::absl", False)
#tools.replace_in_file(full_filename, "absl::raw_hash_set", "absl::absl", False)
#tools.replace_in_file(full_filename, "absl::str_format", "absl::absl", False)
#tools.replace_in_file(full_filename, "absl::strings", "absl::absl", False)
#tools.replace_in_file(full_filename, "absl::synchronization", "absl::absl", False)
tools.replace_in_file(full_filename, "protobuf::libprotobuf", "Protobuf::Protobuf", False)
tools.replace_in_file(full_filename, "protobuf::protoc", "protoc", False)
# No longer needed since idk when...
#tools.replace_in_file(os.path.join(self.source_subfolder, "cmake", "cpp.cmake"), "Protobuf", "protobuf")
#tools.replace_in_file(os.path.join(self.source_subfolder, "cmake", "cpp.cmake"), "absl", "abseil")
tools.replace_in_file(os.path.join(self.source_subfolder, "cmake", "cpp.cmake"), "DEPENDS ${PROTO_FILE} protoc", "DEPENDS ${PROTO_FILE}")
# No longer needed since idk when...
#tools.replace_in_file(os.path.join(self.source_subfolder, "makefiles", "Makefile.third_party.unix.mk"), "libabsl_debugging_internal.a", "libabsl_internal_debugging_internal.a")
def _configure_cmake(self):
# make dependecies build in parallel:
with tools.environment_append({"CMAKE_BUILD_PARALLEL_LEVEL": str(os.cpu_count())}):
cmake = CMake(self)
cmake.definitions["BUILD_Cbc"] = True
cmake.definitions["BUILD_Cgl"] = True
cmake.definitions["BUILD_Clp"] = True
cmake.definitions["BUILD_CoinUtils"] = True
cmake.definitions["BUILD_Osi"] = True
cmake.definitions["BUILD_TESTING"] = False
cmake.definitions["BUILD_absl"] = False
cmake.definitions["BUILD_glags"] = False
cmake.definitions["BUILD_glog"] = False
cmake.configure(source_folder=self.source_subfolder)
return cmake
def build(self):
with tools.chdir(self.source_subfolder):
cmake = self._configure_cmake()
cmake.build()
cmake.install()
def package(self):
tools.rmdir(os.path.join(self.package_folder, "lib", "cmake"))
def package_info(self):
self.cpp_info.libs = ["ortools"]
self.cpp_info.includedirs = ['include']
self.cpp_info.libdirs = ['lib']
@philsuess
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Thanks for this. I am looking at v8.0 and that raises further trouble, among which is the move to c++17. And those are not provided on conan center. At least AFAIK.

@Talkless
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And those are not provided on conan center. At least AFAIK.

@philsuess what is not provided?

@philsuess
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And those are not provided on conan center. At least AFAIK.

@philsuess what is not provided?

The required packages binaries with c++17 flag compiled

@Talkless
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Oh you mean other dependencies must be compiled in C++17..? Ouch...

@philsuess
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Oh you mean other dependencies must be compiled in C++17..? Ouch...

I know. See "Known Breaking Change" on https://github.com/google/or-tools/releases/tag/v8.0

@philsuess
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I think I've had enough. I will start using CLP's bare interface. It's too annoying to keep up with google's strange notions of project management. -For example, were you aware that abseil maintainers strongly discourage maintaining a binary library and instead recommend building from source at head?? No wonder we can't get ortools from conan. It's a f@*$ing hydra!

Thanks for your conanfile, though. I'll push my latest version here soon. Maybe you see something there that can help you.

Cheers!

@Talkless
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It's a f@*$ing hydra!

Haha :) . Yeah Google practices are strange. I understand that it works for their internal ~200mil. code base, but for others, for FOSS projects..?

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