fix: Fix extracted files permissions

This commit fixes the extracted file permissions
when using .extract/.extract_files in addition
to when using the unpack cli command.

The fix is by overriding the _extract_member
method of zip file, and adding permissions fix
there.

The permissions fix was moved from the unpack to
the new method.

src/wheel/cli/unpack.py

@@ -18,13 +18,6 @@ def unpack(path: str, dest: str = ".") -> None:
         namever = wf.parsed_filename.group("namever")
         destination = Path(dest) / namever
         print(f"Unpacking to: {destination}...", end="", flush=True)
-        for zinfo in wf.filelist:
-            wf.extract(zinfo, destination)
-
-            # Set permissions to the same values as they were set in the archive
-            # We have to do this manually due to
-            # https://github.com/python/cpython/issues/59999
-            permissions = zinfo.external_attr >> 16 & 0o777
-            destination.joinpath(zinfo.filename).chmod(permissions)
+        wf.extractall(destination)
 
     print("OK")

src/wheel/wheelfile.py

@@ -7,6 +7,7 @@
 import stat
 import time
 from io import StringIO, TextIOWrapper
+from pathlib import Path
 from zipfile import ZIP_DEFLATED, ZipFile, ZipInfo
 
 from wheel.cli import WheelError
@@ -194,3 +195,15 @@ def close(self):
             self.writestr(self.record_path, data.getvalue())
 
         ZipFile.close(self)
+
+    def _extract_member(self, member, targetpath, pwd):
+        targetpath = super()._extract_member(member, targetpath, pwd)
+        if not isinstance(member, ZipInfo):
+            member = self.getinfo(member)
+
+        # Set permissions to the same values as they were set in the archive
+        # We have to do this manually due to
+        # https://github.com/python/cpython/issues/59999
+        permissions = member.external_attr >> 16 & 0o777
+        Path(targetpath).chmod(permissions)
+        return targetpath