New package: libq

recipes/libq/all/conandata.yml

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+sources:
+  "cci.20180504":
+    url: "https://github.com/grantila/q/archive/0117848bb3e6f0b130b546bc5851caf5f95f8b7e.zip"
+    sha256: "f5e51c1abbbec8e6da2155740917d7f1f60628745363ebd4e2aadfd7ef2ff682"

recipes/libq/all/conanfile.py

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+import os
+
+from conan import ConanFile
+from conan.errors import ConanInvalidConfiguration
+from conan.tools.build import check_min_cppstd
+from conan.tools.cmake import CMake, CMakeToolchain, cmake_layout
+from conan.tools.files import copy, get, rm, rmdir
+from conan.tools.scm import Version
+from conan.tools.apple import fix_apple_shared_install_name
+
+required_conan_version = ">=1.53.0"
+
+class libqConan(ConanFile):
+    name = "libq"
+    description = "A platform-independent promise library for C++, implementing asynchronous continuations."
+    license = "Apache-2.0"
+    topics = ("async", "promises")
+    url = "https://github.com/conan-io/conan-center-index"
+    homepage = "https://github.com/grantila/q"
+    settings = "os", "compiler", "build_type", "arch"
+    package_type = "library"
+    options = {
+        "shared": [True, False],
+        "fPIC": [True, False],
+    }
+    default_options = {
+        "shared": False,
+        "fPIC": True,
+    }
+
+    @property
+    def _min_cppstd(self):
+        return 17
+
+    @property
+    def _compilers_minimum_version(self):
+        return {
+            "apple-clang": "10",
+            "clang": "7",
+            "gcc": "7"
+        }
+
+    def configure(self):
+        if self.options.shared:
+            self.options.rm_safe("fPIC")
+
+    def layout(self):
+        cmake_layout(self, src_folder="src")
+
+    def validate(self):
+        if self.settings.compiler.cppstd:
+            check_min_cppstd(self, self._min_cppstd)
+        minimum_version = self._compilers_minimum_version.get(str(self.settings.compiler), False)
+        if minimum_version and Version(self.settings.compiler.version) < minimum_version:
+            raise ConanInvalidConfiguration(
+                f"{self.ref} requires C++{self._min_cppstd}, which your compiler does not support."
+            )
+        if self.settings.os in ["Windows"]:
+            # FIXME: Test package is not capable to find q.lib
+            raise ConanInvalidConfiguration(f"{self.ref} Conan recipe is not supported in Windows. Contributions are welcome.")
+
+    def source(self):
+        get(self, **self.conan_data["sources"][self.version], strip_root=True)
+
+    def generate(self):
+        tc = CMakeToolchain(self)
+        tc.variables["q_BUILD_TESTS"] = False
+        tc.variables["q_BUILD_APPS"] = False
+
+        tc.generate()
+
+    def build(self):
+        cmake = CMake(self)
+        cmake.configure()
+        cmake.build()
+
+    def package(self):
+        copy(self, "LICENSE.txt", self.source_folder, os.path.join(self.package_folder, "licenses"))
+        cmake = CMake(self)
+        cmake.install()
+        fix_apple_shared_install_name(self)
+
+        rmdir(self, os.path.join(self.package_folder, "lib", "pkgconfig"))
+        rmdir(self, os.path.join(self.package_folder, "lib", "cmake"))
+        rmdir(self, os.path.join(self.package_folder, "share"))
+        rm(self, "*.la", os.path.join(self.package_folder, "lib"))
+        rm(self, "*.pdb", os.path.join(self.package_folder, "lib"))
+        rm(self, "*.pdb", os.path.join(self.package_folder, "bin"))
+
+    def package_info(self):
+        self.cpp_info.libs = ["q"]
+        self.cpp_info.set_property("cmake_file_name", "libq")
+        self.cpp_info.set_property("cmake_target_name", "libq::libq")
+
+        if self.settings.os in ["Linux", "FreeBSD"]:
+            self.cpp_info.system_libs.append("m")
+            self.cpp_info.system_libs.append("pthread")
+            self.cpp_info.system_libs.append("dl")

recipes/libq/all/test_package/CMakeLists.txt

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+cmake_minimum_required(VERSION 3.15)
+
+project(test_package LANGUAGES CXX) # if the project uses c++
+
+find_package(libq REQUIRED CONFIG)
+
+add_executable(${PROJECT_NAME} test_package.cpp)
+target_link_libraries(${PROJECT_NAME} PRIVATE libq::libq)
+target_compile_features(${PROJECT_NAME} PRIVATE cxx_std_17)

recipes/libq/all/test_package/conanfile.py

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+from conan import ConanFile
+from conan.tools.build import can_run
+from conan.tools.cmake import cmake_layout, CMake
+import os
+
+
+# It will become the standard on Conan 2.x
+class TestPackageConan(ConanFile):
+    settings = "os", "arch", "compiler", "build_type"
+    generators = "CMakeDeps", "CMakeToolchain", "VirtualRunEnv"
+    test_type = "explicit"
+
+    def requirements(self):
+        self.requires(self.tested_reference_str)
+
+    def layout(self):
+        cmake_layout(self)
+
+    def build(self):
+        cmake = CMake(self)
+        cmake.configure()
+        cmake.build()
+
+    def test(self):
+        if can_run(self):
+            bin_path = os.path.join(self.cpp.build.bindir, "test_package")
+            self.run(bin_path, env="conanrun")

recipes/libq/all/test_package/test_package.cpp

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+#include <cstdlib>
+#include <q/lib.hpp>
+#include <q/blocking_dispatcher.hpp>
+#include <q/execution_context.hpp>
+#include <q/promise.hpp>
+#include <iostream>
+#include <thread>
+
+int main(void) {
+    q::initialize();
+
+    auto ctx = q::make_execution_context<q::blocking_dispatcher>("test");
+
+    std::thread t([&ctx](){
+        ctx->dispatcher()->start();
+    });    
+    std::this_thread::yield();    
+    ctx->dispatcher()->terminate(q::termination::annihilate);
+    ctx->dispatcher()->await_termination();
+    t.join();
+
+    q::uninitialize();
+    return EXIT_SUCCESS;
+}

recipes/libq/config.yml

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+versions:
+  "cci.20180504":
+    folder: all