build: recipes updated to Conan 2.0

conanfile.py

@@ -24,19 +24,19 @@ import os
 import re
 
 from conan import ConanFile
+from conan.errors import ConanInvalidConfiguration
 from conan.tools.build import check_min_cppstd
 from conan.tools.cmake import CMake, CMakeDeps, CMakeToolchain, cmake_layout
 from conan.tools.files import copy, load, rmdir
 from conan.tools.scm import Version
-from conans.errors import ConanInvalidConfiguration
 
-required_conan_version = ">=1.50.0"
+required_conan_version = ">=2.0.0"
 
 
 class MPUnitsConan(ConanFile):
     name = "mp-units"
     homepage = "https://github.com/mpusz/units"
-    description = "Physical Units library for C++"
+    description = "Physical Quantities and Units library for C++"
     topics = (
         "units",
         "dimensions",
@@ -45,14 +45,15 @@ class MPUnitsConan(ConanFile):
         "physical-quantities",
         "physical-units",
         "system-of-units",
-        "cpp23",
-        "cpp20",
+        "system-of-quantities",
+        "isq",
+        "si",
         "library",
         "quantity-manipulation",
     )
     license = "MIT"
     url = "https://github.com/mpusz/units"
-    settings = "os", "compiler", "build_type", "arch"
+    settings = "os", "arch", "compiler", "build_type"
     requires = "gsl-lite/0.40.0"
     options = {"downcast_mode": ["off", "on", "auto"]}
     default_options = {"downcast_mode": "on"}
@@ -66,23 +67,39 @@ class MPUnitsConan(ConanFile):
         "CMakeLists.txt",
     ]
     no_copy_source = True
-    generators = "cmake_paths"
+
+    @property
+    def _min_cppstd(self):
+        return "20"
+
+    @property
+    def _minimum_compilers_version(self):
+        return {"gcc": "10.3", "clang": "12", "apple-clang": "13", "msvc": "1928"}
+
+    @property
+    def _full_compiler_version(self):
+        compiler = self.settings.compiler
+        if compiler == "msvc":
+            if compiler.update:
+                return int(f"{compiler.version}{compiler.update}")
+            else:
+                return int(f"{compiler.version}0")
+        else:
+            return compiler.version
 
     @property
     def _build_all(self):
-        return bool(self.conf["user.build:all"])
+        return bool(self.conf.get("user.build:all", default=True))
 
     @property
     def _skip_docs(self):
-        return bool(self.conf["user.build:skip_docs"])
+        return bool(self.conf.get("user.build:skip_docs", default=True))
 
     @property
     def _use_libfmt(self):
         compiler = self.settings.compiler
         version = Version(self.settings.compiler.version)
-        std_support = (
-            compiler == "Visual Studio" and version >= 17 and compiler.cppstd == 23
-        ) or (compiler == "msvc" and version >= 193 and compiler.cppstd == 23)
+        std_support = compiler == "msvc" and version >= 193 and compiler.cppstd == 23
         return not std_support
 
     @property
@@ -91,14 +108,6 @@ class MPUnitsConan(ConanFile):
         version = Version(self.settings.compiler.version)
         return "clang" in compiler and compiler.libcxx == "libc++" and version < 14
 
-    @property
-    def _msvc_version(self):
-        compiler = self.settings.compiler
-        if compiler.update:
-            return int(f"{compiler.version}{compiler.update}")
-        else:
-            return int(f"{compiler.version}0")
-
     def set_version(self):
         content = load(self, os.path.join(self.recipe_folder, "src/CMakeLists.txt"))
         version = re.search(
@@ -109,43 +118,35 @@ class MPUnitsConan(ConanFile):
     def requirements(self):
         if self._use_libfmt:
             self.requires("fmt/8.1.1")
-
         if self._use_range_v3:
             self.requires("range-v3/0.11.0")
 
     def build_requirements(self):
         if self._build_all:
             self.test_requires("catch2/3.1.0")
-            self.test_requires("wg21-linear_algebra/0.7.2")
-            if not self._skip_docs:
-                self.tool_requires("doxygen/1.9.4")
+            # TODO uncomment the below when recipes in ConanCenter are fixed
+            # self.test_requires("wg21-linear_algebra/0.7.2")
+        # if not self._skip_docs:
+        #     self.tool_requires("doxygen/1.9.4")
+
+    def validate(self):
+        if self.settings.get_safe("compiler.cppstd"):
+            check_min_cppstd(self, self._min_cppstd)
+
+        def loose_lt_semver(v1, v2):
+            lv1 = [int(v) for v in v1.split(".")]
+            lv2 = [int(v) for v in v2.split(".")]
+            min_length = min(len(lv1), len(lv2))
+            return lv1[:min_length] < lv2[:min_length]
 
-    # TODO Replace with `valdate()` for Conan 2.0 (https://github.com/conan-io/conan/issues/10723)
-    def configure(self):
         compiler = self.settings.compiler
-        version = Version(self.settings.compiler.version)
-        if compiler == "gcc":
-            if version < 10:
-                raise ConanInvalidConfiguration("mp-units requires at least g++-10")
-        elif compiler == "clang":
-            if version < 12:
-                raise ConanInvalidConfiguration("mp-units requires at least clang++-12")
-        elif compiler == "apple-clang":
-            if version < 13:
-                raise ConanInvalidConfiguration(
-                    "mp-units requires at least AppleClang 13"
-                )
-        elif compiler == "Visual Studio":
-            if version < 16:
-                raise ConanInvalidConfiguration(
-                    "mp-units requires at least Visual Studio 16.9"
-                )
-        elif compiler == "msvc":
-            if self._msvc_version < 1928:
-                raise ConanInvalidConfiguration("mp-units requires at least MSVC 19.28")
-        else:
-            raise ConanInvalidConfiguration("Unsupported compiler")
-        check_min_cppstd(self, 20)
+        min_version = self._minimum_compilers_version.get(str(compiler))
+        if min_version and loose_lt_semver(
+            str(self._full_compiler_version), min_version
+        ):
+            raise ConanInvalidConfiguration(
+                f"{self.ref} requires at least {compiler} {min_version}"
+            )
 
     def layout(self):
         cmake_layout(self)
@@ -187,7 +188,7 @@ class MPUnitsConan(ConanFile):
 
         # core
         self.cpp_info.components["core"].requires = ["gsl-lite::gsl-lite"]
-        if compiler == "Visual Studio":
+        if compiler == "msvc":
             self.cpp_info.components["core"].cxxflags = ["/utf-8"]
         if self._use_range_v3:
             self.cpp_info.components["core"].requires.append("range-v3::range-v3")

test_package/conanfile.py

@@ -23,28 +23,26 @@
 import os
 
 from conan import ConanFile
-from conan.tools.build import cross_building
+from conan.tools.build import can_run
 from conan.tools.cmake import CMake, cmake_layout
 
 
 class TestPackageConan(ConanFile):
-    settings = "os", "compiler", "build_type", "arch"
-    generators = "CMakeDeps", "CMakeToolchain", "VirtualBuildEnv", "VirtualRunEnv"
-    apply_env = False
-    test_type = "explicit"  # TODO Remove for Conan 2.0
+    settings = "os", "arch", "compiler", "build_type"
+    generators = "CMakeDeps", "CMakeToolchain", "VirtualRunEnv"
 
     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 layout(self):
-        cmake_layout(self)
-
     def test(self):
-        if not cross_building(self):
-            cmd = os.path.join(self.cpp.build.bindirs[0], "test_package")
-            self.run(cmd, env="conanrun")
+        if can_run(self):
+            bin_path = os.path.join(self.cpp.build.bindirs[0], "test_package")
+            self.run(bin_path, env="conanrun")