[ParlayHash] new recipe

recipes/parlayhash/all/conandata.yml

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+sources:
+  "0.1":
+    url: "https://github.com/cmuparlay/parlayhash/archive/refs/tags/v0.1.tar.gz"
+    sha256: "63dd2680de0291c8c4440fc3364490de0ee3cdea94b02b7449900bac18d66f2f"

recipes/parlayhash/all/conanfile.py

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+from conan import ConanFile
+from conan.errors import ConanInvalidConfiguration
+from conan.tools.files import get, copy, rm
+from conan.tools.build import check_min_cppstd
+from conan.tools.scm import Version
+from conan.tools.layout import basic_layout
+import os
+
+required_conan_version = ">=1.53.0"
+
+
+class ParlayHashConan(ConanFile):
+    name = "parlayhash"
+    description = "A Header-Only Scalable Concurrent Hash Map."
+    license = "MIT"
+    url = "https://github.com/conan-io/conan-center-index"
+    homepage = "https://github.com/cmuparlay/parlayhash"
+    topics = ("unordered_map", "hashmap", "header-only")
+    package_type = "header-library"
+    settings = "os", "arch", "compiler", "build_type"
+    no_copy_source = True
+
+    @property
+    def _minimum_cpp_standard(self):
+        return 17
+
+    @property
+    def _compilers_minimum_version(self):
+        return {
+            "Visual Studio": "15.7",
+            "msvc": "191",
+            "gcc": "7",
+            "clang": "7",
+            "apple-clang": "11",
+        }
+
+    def layout(self):
+        basic_layout(self, src_folder="src")
+
+    def package_id(self):
+        self.info.clear()
+
+    def requirements(self):
+        # TODO: Upstream mentions jemalloc in https://github.com/cmuparlay/parlayhash/blob/main/CMakeLists.txt#L45
+        #     but it's not ported to Conan 2 yet. Add it here if needed in the future.
+        pass
+
+    def validate(self):
+        if self.settings.get_safe("compiler.cppstd"):
+            check_min_cppstd(self, self._minimum_cpp_standard)
+        minimum_version = self._compilers_minimum_version.get(str(self.settings.compiler), False)
+        if minimum_version and Version(self.settings.get_safe("compiler.version")) < minimum_version:
+            raise ConanInvalidConfiguration(f"{self.ref} requires C++{self._minimum_cpp_standard}, which your compiler does not support.")
+
+    def source(self):
+        get(self, **self.conan_data["sources"][self.version], strip_root=True)
+        rm(self, "#hash_table.h#", os.path.join(self.source_folder, "include", "parlay"))
+        rm(self, "#primitives.h#", os.path.join(self.source_folder, "include", "parlay"))
+        rm(self, ".#hash_table.h", os.path.join(self.source_folder, "include", "parlay"))
+
+    def build(self):
+        pass
+
+    def package(self):
+        copy(self, pattern="LICENSE", dst=os.path.join(self.package_folder, "licenses"), src=self.source_folder)
+        copy(self, pattern="*.h", dst=os.path.join(self.package_folder, "include"), src=os.path.join(self.source_folder, "include"))
+
+    def package_info(self):
+        self.cpp_info.bindirs = []
+        self.cpp_info.libdirs = []
+        if self.settings.os in ["Linux", "FreeBSD"]:
+            self.cpp_info.system_libs.append("pthread")
+
+        # This one is a best-effort guess, as the library is header-only it does not mention a target explicitly
+        self.cpp_info.set_property("cmake_file_name", "parlayhash")
+        self.cpp_info.set_property("cmake_target_name", "parlay")

recipes/parlayhash/all/test_package/CMakeLists.txt

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+cmake_minimum_required(VERSION 3.15)
+
+project(test_package LANGUAGES CXX)
+
+find_package(parlayhash REQUIRED CONFIG)
+
+add_executable(${PROJECT_NAME} test_package.cpp)
+target_link_libraries(${PROJECT_NAME} PRIVATE parlay)
+target_compile_features(${PROJECT_NAME} PRIVATE cxx_std_17)

recipes/parlayhash/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
+
+
+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.bindirs[0], "test_package")
+            self.run(bin_path, env="conanrun")

recipes/parlayhash/all/test_package/test_package.cpp

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+#include <iostream>
+#include <string>
+#include <parlay/parallel.h>
+#include "parlay_hash/unordered_map.h"
+
+using K = std::string;
+using V = unsigned long;
+using map_type = parlay::parlay_unordered_map<K,V>;
+
+int main() {
+  map_type my_map(100);
+  my_map.Insert("sue", 1);
+  my_map.Insert("sam", 5);
+
+  std::cout << "value before increment: " << *my_map.Find("sue") << std::endl;
+  auto increment = [] (std::optional<V> v) -> V {return v.has_value() ? 1 + *v : 1;};
+  my_map.Upsert("sue", increment);
+  std::cout << "value after increment: " << *my_map.Find("sue") << std::endl;
+
+  std::cout << "size before remove: " << my_map.size() << std::endl;
+  my_map.Remove("sue");
+  std::cout << "size after remove: " << my_map.size() << std::endl;
+}

recipes/parlayhash/config.yml

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+versions:
+  "0.1":
+    folder: all