bpo-45582: Port getpath[p].c to Python (GH-29041)

The getpath.py file is frozen at build time and executed as code over a namespace. It is never imported, nor is it meant to be importable or reusable. However, it should be easier to read, modify, and patch than the previous code.

This commit attempts to preserve every previously tested quirk, but these may be changed in the future to better align platforms.

1 files changed, 33 insertions, 1 deletions

diff --git a/Modules/clinic/posixmodule.c.h b/Modules/clinic/posixmodule.c.h
index 7921c22..86da087 100644
--- a/Modules/clinic/posixmodule.c.h
+++ b/Modules/clinic/posixmodule.c.h
@@ -1317,6 +1317,38 @@ exit:
 
 #endif /* defined(MS_WINDOWS) */
 
+PyDoc_STRVAR(os__path_normpath__doc__,
+"_path_normpath($module, /, path)\n"
+"--\n"
+"\n"
+"Basic path normalization.");
+
+#define OS__PATH_NORMPATH_METHODDEF    \
+    {"_path_normpath", (PyCFunction)(void(*)(void))os__path_normpath, METH_FASTCALL|METH_KEYWORDS, os__path_normpath__doc__},
+
+static PyObject *
+os__path_normpath_impl(PyObject *module, PyObject *path);
+
+static PyObject *
+os__path_normpath(PyObject *module, PyObject *const *args, Py_ssize_t nargs, PyObject *kwnames)
+{
+    PyObject *return_value = NULL;
+    static const char * const _keywords[] = {"path", NULL};
+    static _PyArg_Parser _parser = {NULL, _keywords, "_path_normpath", 0};
+    PyObject *argsbuf[1];
+    PyObject *path;
+
+    args = _PyArg_UnpackKeywords(args, nargs, NULL, kwnames, &_parser, 1, 1, 0, argsbuf);
+    if (!args) {
+        goto exit;
+    }
+    path = args[0];
+    return_value = os__path_normpath_impl(module, path);
+
+exit:
+    return return_value;
+}
+
 PyDoc_STRVAR(os_mkdir__doc__,
 "mkdir($module, /, path, mode=511, *, dir_fd=None)\n"
 "--\n"
@@ -9263,4 +9295,4 @@ exit:
 #ifndef OS_WAITSTATUS_TO_EXITCODE_METHODDEF
     #define OS_WAITSTATUS_TO_EXITCODE_METHODDEF
 #endif /* !defined(OS_WAITSTATUS_TO_EXITCODE_METHODDEF) */
-/*[clinic end generated code: output=65a85d7d3f2c487e input=a9049054013a1b77]*/
+/*[clinic end generated code: output=05505f171cdcff72 input=a9049054013a1b77]*/