Initial support for wasmtime package

recipes/wasmtime/all/CMakeLists.txt

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+cmake_minimum_required(VERSION 3.1)
+project(cmake_wrapper)
+
+include(conanbuildinfo.cmake)
+conan_basic_setup()
+
+add_subdirectory(source_subfolder)

recipes/wasmtime/all/conandata.yml

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+sources:
+  "0.28.0": ""

recipes/wasmtime/all/conanfile.py

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+from conans import ConanFile, CMake, tools
+from conans.errors import ConanInvalidConfiguration, ConanException
+import os
+
+
+class WasmtimeConan(ConanFile):
+    name = 'wasmtime'
+    homepage = 'https://github.com/bytecodealliance/wasmtime'
+    license = 'Apache License 2.0'
+    url = 'https://github.com/conan-io/conan-center-index'
+    description = "Standalone JIT-style runtime for WebAssembly, using Cranelift"
+    topics = ("webassembly", "wasm", "wasi")
+    settings = "os", "compiler", "build_type", "arch"
+    options = {
+        "shared": [True, False],
+        'fPIC': [True],
+    }
+    default_options = {
+        'shared': False,
+        'fPIC': True,
+    }
+    generators = "cmake", "cmake_find_package", "cmake_find_package_multi"
+    exports_sources = ['CMakeLists.txt', 'patches/*']
+
+    @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.options.shared:
+            del self.options.fPIC
+
+    def build(self):
+        try:
+            if self.settings.arch == "armv8" and self.settings.os == "Android":
+                os_name = "Linux"
+            else:
+                os_name = str(self.settings.os)
+
+            archive_ext = "zip" if os_name == "Windows" else "tar.xz"
+            url = f"https://github.com/bytecodealliance/wasmtime/releases/download/v{self.version}/wasmtime-v{self.version}-{self.settings.arch}-{os_name.lower()}-c-api.{archive_ext}"
+            tools.get(url, strip_root=True, destination=self._source_subfolder)
+        except:
+            raise Exception("Binary does not exist for these settings")
+
+    def package(self):
+        include_path = os.path.join(self._source_subfolder, 'include')
+        self.copy('*.h', dst='include', src=include_path)
+        self.copy('*.hh', dst='include', src=include_path)
+        self.copy('*.hpp', dst='include', src=include_path)
+
+        self.copy('*.lib', dst='lib', keep_path=False)
+        self.copy('*.dll', dst='bin', keep_path=False)
+        self.copy('*.so', dst='lib', keep_path=False)
+        self.copy('*.dylib', dst='lib', keep_path=False)
+        self.copy('*.a', dst='lib', keep_path=False)
+
+        self.copy('LICENSE', dst='licenses', src=self._source_subfolder)
+
+    def package_info(self):
+        self.cpp_info.names["cmake_find_package"] = "wasmtime"
+        self.cpp_info.names["cmake_find_multi_package"] = "wasmtime"
+        if self.options.shared:
+            self.cpp_info.libs = ["wasmtime"]
+        else:
+            if self.settings.os == "Windows":
+                self.cpp_info.defines= ["/DWASM_API_EXTERN=", "/DWASI_API_EXTERN="]
+                self.cpp_info.libs = ["wasmtime.dll"]
+            else:
+                self.cpp_info.libs = ["wasmtime"]
+
+        if self.settings.os == 'Windows':
+            self.cpp_info.system_libs = ['ws2_32', 'bcrypt', 'advapi32', 'userenv', 'ntdll', 'shell32', 'ole32']
+        if self.settings.os == 'Linux':
+            self.cpp_info.system_libs = ['pthread', 'dl', 'm']

recipes/wasmtime/all/test_package/CMakeLists.txt

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+cmake_minimum_required(VERSION 3.1)
+project(PackageTest)
+
+set(CMAKE_CXX_STANDARD 11)
+
+include(${CMAKE_BINARY_DIR}/conanbuildinfo.cmake)
+conan_basic_setup()
+
+find_package(wasmtime REQUIRED)
+
+add_executable(example example.cpp)
+target_link_libraries(example PRIVATE wasmtime::wasmtime)

recipes/wasmtime/all/test_package/conanfile.py

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+from conans import ConanFile, CMake, tools
+import os
+
+
+class WasmtimeTestConan(ConanFile):
+    settings = 'os', 'compiler', 'build_type', 'arch'
+    generators = 'cmake', 'cmake_find_package'
+
+    def build(self):
+        cmake = CMake(self)
+        cmake.configure()
+        cmake.build()
+
+    def test(self):
+        if not tools.cross_building(self.settings):
+            bin_path = os.path.join('bin', 'example')
+            self.run(bin_path, run_environment=True)

recipes/wasmtime/all/test_package/example.cpp

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+#include <thread>
+#include <wasmtime.h>
+
+int main() {
+  auto wat = "";
+  wasm_byte_vec_t ret;
+  auto *error = wasmtime_wat2wasm(wat, sizeof(wat), &ret);
+  std::this_thread::sleep_for(std::chrono::seconds(1));
+  return 0;
+}

recipes/wasmtime/config.yml

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+versions:
+  "0.28.0":
+    folder: all