Backport new ABI tag scheme into bundled pip

Author: msimacek

graalpython/lib-graalpython/patches/pip/pip-22.2.2.patch

@@ -327,6 +327,61 @@ index 78b5c13..18a184c 100644
          raise InstallationError(f"Cannot determine archive format of {location}")
 +    from pip._internal.utils.graalpy import apply_graalpy_patches
 +    apply_graalpy_patches(filename, location)
+diff --git a/pip/_vendor/packaging/tags.py b/pip/_vendor/packaging/tags.py
+index 9a3d25a..a1e93f2 100644
+--- a/pip/_vendor/packaging/tags.py
++++ b/pip/_vendor/packaging/tags.py
+@@ -224,10 +224,46 @@ def cpython_tags(
+                 yield Tag(interpreter, "abi3", platform_)
+ 
+ 
+-def _generic_abi() -> Iterator[str]:
+-    abi = sysconfig.get_config_var("SOABI")
+-    if abi:
+-        yield _normalize_string(abi)
++# GraalVM change: backported change from pypa/packaging
++def _generic_abi() -> List[str]:
++    """
++    Return the ABI tag based on EXT_SUFFIX.
++    """
++    # The following are examples of `EXT_SUFFIX`.
++    # We want to keep the parts which are related to the ABI and remove the
++    # parts which are related to the platform:
++    # - linux:   '.cpython-310-x86_64-linux-gnu.so' => cp310
++    # - mac:     '.cpython-310-darwin.so'           => cp310
++    # - win:     '.cp310-win_amd64.pyd'             => cp310
++    # - win:     '.pyd'                             => cp37 (uses _cpython_abis())
++    # - pypy:    '.pypy38-pp73-x86_64-linux-gnu.so' => pypy38_pp73
++    # - graalpy: '.graalpy-38-native-x86_64-darwin.dylib'
++    #                                               => graalpy_38_native
++
++    ext_suffix = _get_config_var("EXT_SUFFIX", warn=True)
++    if not isinstance(ext_suffix, str) or ext_suffix[0] != ".":
++        raise SystemError("invalid sysconfig.get_config_var('EXT_SUFFIX')")
++    parts = ext_suffix.split(".")
++    if len(parts) < 3:
++        # CPython3.7 and earlier uses ".pyd" on Windows.
++        return _cpython_abis(sys.version_info[:2])
++    soabi = parts[1]
++    if soabi.startswith("cpython"):
++        # non-windows
++        abi = "cp" + soabi.split("-")[1]
++    elif soabi.startswith("cp"):
++        # windows
++        abi = soabi.split("-")[0]
++    elif soabi.startswith("pypy"):
++        abi = "-".join(soabi.split("-")[:2])
++    elif soabi.startswith("graalpy"):
++        abi = "-".join(soabi.split("-")[:3])
++    elif soabi:
++        # pyston, ironpython, others?
++        abi = soabi
++    else:
++        return []
++    return [_normalize_string(abi)]
+ 
+ 
+ def generic_tags(
 diff --git a/pip/_vendor/platformdirs/api.py b/pip/_vendor/platformdirs/api.py
 index 6f6e2c2..7760125 100644
 --- a/pip/_vendor/platformdirs/api.py