Remove dontPreferSetupPy & don't remove pyproject.toml ever

It seems like this bandaid to avoid some build-system related overrides causes more problems than it fixes.
Let's just deal with reality up-front and hope that https://github.com/python-poetry/poetry/issues/2789 will be fixed at some point.

hooks/pip-build-hook.sh

@@ -5,14 +5,6 @@ pipBuildPhase() {
     echo "Executing pipBuildPhase"
     runHook preBuild
 
-    # Prefer using setup.py to avoid build-system dependencies if we have a setup.py
-    if [ -z "${dontPreferSetupPy-}" ]; then
-      if test -e setup.py && test -e pyproject.toml; then
-        echo "Removing pyproject.toml..."
-        rm -f pyproject.toml
-      fi
-    fi
-
     mkdir -p dist
     echo "Creating a wheel..."
     @pythonInterpreter@ -m pip wheel --verbose --no-index --no-deps --no-clean --no-build-isolation --wheel-dir dist .

overrides.nix

@@ -50,12 +50,6 @@ self: super:
     }
   );
 
-  anyio = super.anyio.overridePythonAttrs (old: {
-    postPatch = ''
-      substituteInPlace setup.py --replace 'setup()' 'setup(version="${old.version}")'
-    '';
-  });
-
   argcomplete = super.argcomplete.overridePythonAttrs (
     old: rec {
       buildInputs = (old.buildInputs or [ ]) ++ [ self.importlib-metadata ];
@@ -90,20 +84,8 @@ self: super:
     }
   );
 
-  backports-entry-points-selectable = super.backports-entry-points-selectable.overridePythonAttrs (old: {
+  backcall = super.backcall.overridePythonAttrs (old: {
-    postPatch = ''
+    buildInputs = old.buildInputs or [ ] ++ [ self.flit-core ];
-      substituteInPlace setup.py --replace \
-        'setuptools.setup()' \
-        'setuptools.setup(version="${old.version}")'
-    '';
-  });
-
-  backports-functools-lru-cache = super.backports-functools-lru-cache.overridePythonAttrs (old: {
-    postPatch = ''
-      substituteInPlace setup.py --replace \
-        'setuptools.setup()' \
-        'setuptools.setup(version="${old.version}")'
-    '';
   });
 
   bcrypt = super.bcrypt.overridePythonAttrs (
@@ -118,12 +100,6 @@ self: super:
     }
   );
 
-  black = super.black.overridePythonAttrs (
-    old: {
-      dontPreferSetupPy = true;
-    }
-  );
-
   borgbackup = super.borgbackup.overridePythonAttrs (
     old: {
       BORG_OPENSSL_PREFIX = pkgs.openssl.dev;
@@ -174,11 +150,13 @@ self: super:
     }
   );
 
-  cheroot = super.cheroot.overridePythonAttrs (
+  cleo = super.cleo.overridePythonAttrs (old: {
-    old: {
+    buildInputs = old.buildInputs or [ ] ++ [ self.poetry-core ];
-      dontPreferSetupPy = true;
+  });
-    }
+
-  );
+  clikit = super.clikit.overridePythonAttrs (old: {
+    buildInputs = old.buildInputs or [ ] ++ [ self.poetry-core ];
+  });
 
   cloudflare = super.cloudflare.overridePythonAttrs (
     old: {
@@ -199,10 +177,14 @@ self: super:
       buildInputs = (old.buildInputs or [ ]) ++ [
         self.toml
       ];
+    }
+  );
 
-      postPatch = ''
+  crashtest = super.crashtest.overridePythonAttrs (
-        substituteInPlace setup.py --replace 'setuptools.setup()' 'setuptools.setup(version="${old.version}")'
+    old: {
-      '';
+      buildInputs = (old.buildInputs or [ ]) ++ [
+        self.poetry-core
+      ];
     }
   );
 
@@ -419,8 +401,7 @@ self: super:
     old: {
       postPatch = ''
         substituteInPlace setup.py \
-          --replace 'setup_requires="setupmeta"' 'setup_requires=[]' \
+          --replace 'setup_requires="setupmeta"' 'setup_requires=[]'
-          --replace 'versioning="devcommit"' 'version="${old.version}"'
       '';
     }
   );
@@ -442,12 +423,6 @@ self: super:
     }
   );
 
-  filelock = super.filelock.overridePythonAttrs (old: {
-    postPatch = ''
-      substituteInPlace setup.py --replace 'setup()' 'setup(version="${old.version}")'
-    '';
-  });
-
   fiona = super.fiona.overridePythonAttrs (
     old: {
       buildInputs = (old.buildInputs or [ ]) ++ [ pkgs.gdal_2 ];
@@ -563,6 +538,10 @@ self: super:
     }
   );
 
+  html5lib = super.html5lib.overridePythonAttrs (old: {
+    buildInputs = old.buildInputs or [ ] ++ [ self.flit-core ];
+  });
+
   httplib2 = super.httplib2.overridePythonAttrs (old: {
     propagatedBuildInputs = (old.propagatedBuildInputs or [ ]) ++ [ self.pyparsing ];
   });
@@ -635,20 +614,6 @@ self: super:
   importlib-metadata = super.importlib-metadata.overridePythonAttrs (
     old: {
       propagatedBuildInputs = (old.propagatedBuildInputs or [ ]) ++ lib.optional self.python.isPy2 self.pathlib2;
-
-      # disable the removal of pyproject.toml, required because of setuptools_scm
-      dontPreferSetupPy = true;
-
-      postPatch = old.postPatch or "" + (lib.optionalString ((old.format or "") != "wheel") ''
-        substituteInPlace setup.py --replace 'setuptools.setup()' 'setuptools.setup(version="${old.version}")'
-      '');
-    }
-  );
-
-  importlib-resources = super.importlib-resources.overridePythonAttrs (
-    old: {
-      # disable the removal of pyproject.toml, required because of setuptools_scm
-      dontPreferSetupPy = true;
     }
   );
 
@@ -670,11 +635,13 @@ self: super:
       buildInputs = (old.buildInputs or [ ]) ++ [
         self.toml
       ];
-      # disable the removal of pyproject.toml, required because of setuptools_scm
-      dontPreferSetupPy = true;
     }
   );
 
+  jeepney = super.jeepney.overridePythonAttrs (old: {
+    buildInputs = old.buildInputs or [ ] ++ [ self.flit-core ];
+  });
+
   jira = super.jira.overridePythonAttrs (
     old: {
       inherit (pkgs.python3Packages.jira) patches;
@@ -706,12 +673,6 @@ self: super:
     }
   );
 
-  jsonpickle = super.jsonpickle.overridePythonAttrs (
-    old: {
-      dontPreferSetupPy = true;
-    }
-  );
-
   jsonslicer = super.jsonslicer.overridePythonAttrs (old: {
     nativeBuildInputs = (old.nativeBuildInputs or [ ]) ++ [ pkgs.pkgconfig ];
     buildInputs = (old.buildInputs or [ ]) ++ [ pkgs.yajl ];
@@ -741,9 +702,6 @@ self: super:
       buildInputs = (old.buildInputs or [ ]) ++ [
         self.toml
       ];
-      postPatch = ''
-        substituteInPlace setup.py --replace 'setuptools.setup()' 'setuptools.setup(version="${old.version}")'
-      '';
     }
   );
 
@@ -768,10 +726,6 @@ self: super:
     propagatedBuildInputs = [ pkgs.libvirt ];
   });
 
-  licensecheck = super.licensecheck.overridePythonAttrs (old: {
-    dontPreferSetupPy = true;
-  });
-
   llvmlite = super.llvmlite.overridePythonAttrs (
     old:
     let
@@ -1087,6 +1041,10 @@ self: super:
     '';
   });
 
+  pastel = super.pastel.overridePythonAttrs (old: {
+    buildInputs = old.buildInputs or [ ] ++ [ self.poetry-core ];
+  });
+
   paramiko = super.paramiko.overridePythonAttrs (old: {
     doCheck = false; # requires networking
   });
@@ -1124,12 +1082,6 @@ self: super:
     }
   );
 
-  platformdirs = super.platformdirs.overridePythonAttrs (old: {
-    postPatch = ''
-      substituteInPlace setup.py --replace 'setup()' 'setup(version="${old.version}")'
-    '';
-  });
-
   poetry-core = super.poetry-core.overridePythonAttrs (old: {
     # "Vendor" dependencies (for build-system support)
     postPatch = ''
@@ -1152,8 +1104,6 @@ self: super:
       buildInputs = (old.buildInputs or [ ]) ++ [
         self.toml
       ];
-      # disable the removal of pyproject.toml, required because of setuptools_scm
-      dontPreferSetupPy = true;
     }
   );
 
@@ -1816,8 +1766,6 @@ self: super:
       buildInputs = (old.buildInputs or [ ]) ++ [
         self.toml
       ];
-      # disable the removal of pyproject.toml, required because of setuptools_scm
-      dontPreferSetupPy = true;
     }
   );
 
@@ -1929,13 +1877,6 @@ self: super:
     }))
     { };
 
-  typeguard = super.typeguard.overridePythonAttrs (old: {
-    postPatch = ''
-      substituteInPlace setup.py \
-        --replace 'setup()' 'setup(version="${old.version}")'
-    '';
-  });
-
   typed_ast = super.typed-ast.overridePythonAttrs (old: {
     nativeBuildInputs = (old.nativeBuildInputs or [ ]) ++ [
       self.pytest-runner
@@ -2038,21 +1979,7 @@ self: super:
     if isWheel then wheelPackage else sourcePackage;
 
   zipp = if super.zipp == null then null else
-  (
+  super.zipp.overridePythonAttrs (
-    if lib.versionAtLeast super.zipp.version "2.0.0" then
-      (
-        super.zipp.overridePythonAttrs (
-          old:
-          if (old.format or "pyproject") != "wheel" then {
-            prePatch = ''
-              substituteInPlace setup.py --replace \
-              'setuptools.setup()' \
-              'setuptools.setup(version="${super.zipp.version}")'
-            '';
-          } else old
-        )
-      ) else super.zipp
-  ).overridePythonAttrs (
     old: {
       propagatedBuildInputs = (old.propagatedBuildInputs or [ ]) ++ [
         self.toml
@@ -2226,13 +2153,6 @@ self: super:
     }
   );
 
-  lazy-object-proxy = super.lazy-object-proxy.overridePythonAttrs (
-    old: {
-      # disable the removal of pyproject.toml, required because of setuptools_scm
-      dontPreferSetupPy = true;
-    }
-  );
-
   pendulum = super.pendulum.overridePythonAttrs (old: {
     buildInputs = (old.buildInputs or [ ]) ++ [ self.poetry ];
     # Technically incorrect, but fixes the build error..
@@ -2241,6 +2161,10 @@ self: super:
     '';
   });
 
+  ptyprocess = super.ptyprocess.overridePythonAttrs (old: {
+    buildInputs = old.buildInputs or [ ] ++ [ self.flit-core ];
+  });
+
   pygraphviz = super.pygraphviz.overridePythonAttrs (old: {
     nativeBuildInputs = (old.nativeBuildInputs or [ ]) ++ [ pkgs.pkg-config ];
     buildInputs = (old.buildInputs or [ ]) ++ [ pkgs.graphviz ];
@@ -2274,6 +2198,10 @@ self: super:
     buildInputs = (old.buildInputs or [ ]) ++ [ self.pbr ];
   });
 
+  tomlkit = super.tomlkit.overridePythonAttrs (old: {
+    buildInputs = old.buildInputs or [ ] ++ [ self.poetry-core ];
+  });
+
   tomli = super.tomli.overridePythonAttrs (old: {
     nativeBuildInputs = (old.nativeBuildInputs or [ ]) ++ [ self.flit-core ];
   });