add package for the rocket library

recipes/rocket/all/conandata.yml

@@ -0,0 +1,10 @@
+sources:
+  "cci.20200603":
+    url: "https://github.com/tripleslash/rocket/archive/348869fcda83f8b8b521c7654f83fea07ebe7a0a.tar.gz"
+    sha256: "de03b9c7f9b9478cfaa60683f95a7b0773dc0929d14e510c23f53b3804cc921f"
+patches:
+  "cci.20200603":
+    - patch_file: "patches/0001-fix-thread_id.patch"
+      patch_description: "Fix compilation on different C++ std versions"
+      patch_type: "backport"
+      patch_source: "https://github.com/tripleslash/rocket/issues/10"

recipes/rocket/all/conanfile.py

@@ -0,0 +1,72 @@
+from conan import ConanFile
+from conan.errors import ConanInvalidConfiguration
+from conan.tools.build import check_min_cppstd
+from conan.tools.files import apply_conandata_patches, copy, export_conandata_patches, get, load, save
+from conan.tools.scm import Version
+import os
+
+required_conan_version = ">=1.53.0"
+
+
+class RocketConan(ConanFile):
+    name = "rocket"
+    description = "Fast single header signal/slots library for C++"
+    license = "DocumentRef-README.md:LicenseRef-Rocket-public-domain"
+    url = "https://github.com/conan-io/conan-center-index"
+    homepage = "https://github.com/tripleslash/rocket"
+    topics = ("signal-slots", "observer-pattern", "header-only")
+    package_type = "header-library"
+    settings = "os", "compiler", "build_type", "arch"
+
+    @property
+    def _min_cppstd(self):
+        return 17
+
+    @property
+    def _compilers_minimum_version(self):
+        return {
+            "gcc": "7",
+            "clang": "6",
+            "apple-clang": "10",
+            "Visual Studio": "15",
+            "msvc": "191",
+        }
+
+    def export_sources(self):
+        export_conandata_patches(self)
+
+    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."
+            )
+
+    def source(self):
+        get(self, **self.conan_data["sources"][self.version], strip_root=True)
+
+    def package_id(self):
+        self.info.clear()
+
+    def build(self):
+        apply_conandata_patches(self)
+
+    def _extract_license(self):
+        readme_content = load(self, os.path.join(self.source_folder, "README.md"))
+        first = readme_content.find("# rocket")
+        last = readme_content.find("signals2).")
+        license_content = readme_content[first:last+len("signals2).")]
+        # Make sure the extracted text from README has the license type
+        assert license_content.find("public-domain") != -1
+        save(self, os.path.join(self.package_folder, "licenses", "LICENSE"), license_content)
+
+    def package(self):
+        self._extract_license()
+        copy(self, "rocket.hpp", self.build_folder, os.path.join(self.package_folder, "include"))
+
+    def package_info(self):
+        self.cpp_info.bindirs = []
+        self.cpp_info.libdirs = []
+

recipes/rocket/all/patches/0001-fix-thread_id.patch

@@ -0,0 +1,16 @@
+diff --git a/rocket.hpp b/rocket.hpp
+index 8c4e539..47d650a 100644
+--- a/rocket.hpp
++++ b/rocket.hpp
+@@ -2082,8 +2082,8 @@ namespace rocket
+
+             bool is_queued() const ROCKET_NOEXCEPT
+             {
+-                return thread_id != std::thread::id{}
+-                && thread_id != std::this_thread::get_id();
++                return !(thread_id == std::thread::id{})
++                && !(thread_id == std::this_thread::get_id());
+             }
+
+ #ifndef ROCKET_NO_BLOCKING_CONNECTIONS
+

recipes/rocket/all/test_package/CMakeLists.txt

@@ -0,0 +1,8 @@
+cmake_minimum_required(VERSION 3.15)
+project(test_package LANGUAGES CXX)
+
+find_package(rocket REQUIRED CONFIG)
+
+add_executable(${PROJECT_NAME} test_package.cpp)
+target_link_libraries(${PROJECT_NAME} PRIVATE rocket::rocket)
+target_compile_features(${PROJECT_NAME} PRIVATE cxx_std_17)

recipes/rocket/all/test_package/conanfile.py

@@ -0,0 +1,26 @@
+from conan import ConanFile
+from conan.tools.build import can_run
+from conan.tools.cmake import CMake, cmake_layout
+import os
+
+
+class RocketTestConan(ConanFile):
+    settings = "os", "arch", "compiler", "build_type"
+    generators = "CMakeToolchain", "CMakeDeps", "VirtualRunEnv"
+    test_type = "explicit"
+
+    def layout(self):
+        cmake_layout(self)
+
+    def requirements(self):
+        self.requires(self.tested_reference_str)
+
+    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.bindirs[0], "test_package")
+            self.run(bin_path, env="conanrun")

recipes/rocket/all/test_package/test_package.cpp

@@ -0,0 +1,16 @@
+#include <cstdlib>
+#include <rocket.hpp>
+#include <iostream>
+
+int main()
+{
+    rocket::signal<int(int)> test;
+    test.connect([](int x)
+                 { return x * 3; });
+
+    constexpr int value = 2;
+
+    const auto result{test(value) == value * 3};
+    std::cout << "Rocket test success: " << std::boolalpha << result << '\n';
+    return result? EXIT_SUCCESS : EXIT_FAILURE;
+}

recipes/rocket/config.yml

@@ -0,0 +1,3 @@
+versions:
+  "cci.20200603":
+    folder: "all"