deprecate AutoPackage (#14083)

Changelog: Fix: Deprecate ``AutoPackage`` remnant from Conan 1.X
Docs: conan-io/docs#3253

conan/tools/files/packager.py

@@ -38,6 +38,9 @@ def __init__(self, conanfile):
         self.patterns.build.include = ["*.h", "*.hpp", "*.hxx"]
         self.patterns.build.lib = ["*.so", "*.so.*", "*.a", "*.lib", "*.dylib"]
         self.patterns.build.bin = ["*.exe", "*.dll"]
+        conanfile.output.warning("AutoPackager is **** deprecated ****", warn_tag="deprecated")
+        conanfile.output.warning("AutoPackager **** will be removed ****", warn_tag="deprecated")
+        conanfile.output.warning("Use explicit copy() calls instead", warn_tag="deprecated")
 
     def run(self):
         cf = self._conanfile
@@ -58,8 +61,8 @@ def run(self):
                     self._package_cppinfo("build", cf.cpp.build.components[cname],
                                           cf.cpp.package.components[cname])
         else:  # No components declared
-           self._package_cppinfo("source", cf.cpp.source, cf.cpp.package)
-           self._package_cppinfo("build", cf.cpp.build, cf.cpp.package)
+            self._package_cppinfo("source", cf.cpp.source, cf.cpp.package)
+            self._package_cppinfo("build", cf.cpp.build, cf.cpp.package)
 
     def _package_cppinfo(self, origin_name, origin_cppinfo, dest_cppinfo):
         """

conans/test/functional/layout/test_layout_autopackage.py

@@ -89,6 +89,7 @@ def package(self):
     """
     client.save({"conanfile.py": conan_file})
     client.run("create . --name=lib --version=1.0")
+    assert "AutoPackager is **** deprecated ****" in client.out
     package_id = client.created_package_id("lib/1.0")
 
     ref = RecipeReference.loads("lib/1.0@")