include pep660 proof of concept (#3082)

1 files changed, 21 insertions, 0 deletions

diff --git a/setuptools/build_meta.py b/setuptools/build_meta.py
index 5dc65e2d..8b592fad 100644
--- a/setuptools/build_meta.py
+++ b/setuptools/build_meta.py
@@ -46,6 +46,8 @@ __all__ = ['get_requires_for_build_sdist',
            'prepare_metadata_for_build_wheel',
            'build_wheel',
            'build_sdist',
+           'get_requires_for_build_editable',
+           'build_editable',
            '__legacy__',
            'SetupRequirementsError']
 
@@ -250,6 +252,23 @@ class _BuildMetaBackend:
                                          config_settings)
 
 
+    # PEP660 hooks:
+    # build_editable
+    # get_requires_for_build_editable
+    # prepare_metadata_for_build_editable
+    def build_editable(
+        self, wheel_directory, scheme=None, config_settings=None
+    ):
+        # XXX can or should we hide our editable_wheel command normally?
+        return self._build_with_temp_dir(
+            ["editable_wheel"], ".whl", wheel_directory, config_settings
+        )
+
+
+    def get_requires_for_build_editable(self, config_settings=None):
+        return ['editables', 'wheel']
+
+
 class _BuildMetaLegacyBackend(_BuildMetaBackend):
     """Compatibility backend for setuptools
 
@@ -295,9 +314,11 @@ _BACKEND = _BuildMetaBackend()
 
 get_requires_for_build_wheel = _BACKEND.get_requires_for_build_wheel
 get_requires_for_build_sdist = _BACKEND.get_requires_for_build_sdist
+get_requires_for_build_editable =  _BACKEND.get_requires_for_build_editable
 prepare_metadata_for_build_wheel = _BACKEND.prepare_metadata_for_build_wheel
 build_wheel = _BACKEND.build_wheel
 build_sdist = _BACKEND.build_sdist
+build_editable = _BACKEND.build_editable
 
 
 # The legacy backend