CMakeToolchain customization and extensibility mechanism (#8749)

* working in new extensibility mechanism

* fix bug

* wip

* wip

* wip

* wip

* change order blocks

* config_paths block and working in Android in Win

* extensibility and customization framework

* fix py27 test

conan/tools/_compilers.py

@@ -10,6 +10,9 @@ def architecture_flag(settings):
     if not compiler or not arch:
         return ""
 
+    if the_os == "Android":
+        return ""
+
     if str(compiler) in ['gcc', 'apple-clang', 'clang', 'sun-cc']:
         if str(the_os) == 'Macos' and str(subsystem) == 'catalyst' and str(arch) == 'x86_64':
             # FIXME: This might be conflicting with Autotools --target cli arg

conan/tools/cmake/cmake.py

@@ -1,7 +1,7 @@
 import os
 import platform
 
-from conan.tools.cmake.base import CMakeToolchainBase
+from conan.tools.cmake import CMakeToolchain
 from conan.tools.cmake.utils import get_generator, is_multi_configuration
 from conan.tools.gnu.make import make_jobs_cmd_line_arg
 from conan.tools.meson.meson import ninja_jobs_cmd_line_arg
@@ -13,7 +13,6 @@
 from conans.client.tools.oss import cpu_count, args_to_string
 from conans.errors import ConanException
 from conans.util.conan_v2_mode import conan_v2_error
-from conans.util.env_reader import get_env
 from conans.util.files import mkdir
 
 
@@ -91,7 +90,7 @@ def configure(self, source_folder=None):
 
         mkdir(build_folder)
         arg_list = '-DCMAKE_TOOLCHAIN_FILE="{}" -DCMAKE_INSTALL_PREFIX="{}" "{}"'.format(
-            CMakeToolchainBase.filename,
+            CMakeToolchain.filename,
             self._conanfile.package_folder.replace("\\", "/"),
             source)