[Add] 打通Kconfiglib配置操作

scripts/kconfig/Kconfiglib/listnewconfig.py

@@ -0,0 +1,76 @@
+#!/usr/bin/env python3
+
+# Copyright (c) 2018-2019, Ulf Magnusson
+# SPDX-License-Identifier: ISC
+
+"""
+Lists all user-modifiable symbols that are not given a value in the
+configuration file. Usually, these are new symbols that have been added to the
+Kconfig files.
+
+The default configuration filename is '.config'. A different filename can be
+passed in the KCONFIG_CONFIG environment variable.
+"""
+from __future__ import print_function
+
+import argparse
+import sys
+
+from kconfiglib import Kconfig, BOOL, TRISTATE, INT, HEX, STRING, TRI_TO_STR
+
+
+def main():
+    parser = argparse.ArgumentParser(
+        formatter_class=argparse.RawDescriptionHelpFormatter,
+        description=__doc__)
+
+    parser.add_argument(
+        "--show-help", "-l",
+        action="store_true",
+        help="Show any help texts as well")
+
+    parser.add_argument(
+        "kconfig",
+        metavar="KCONFIG",
+        nargs="?",
+        default="Kconfig",
+        help="Top-level Kconfig file (default: Kconfig)")
+
+    args = parser.parse_args()
+
+    kconf = Kconfig(args.kconfig, suppress_traceback=True)
+    # Make it possible to filter this message out
+    print(kconf.load_config(), file=sys.stderr)
+
+    for sym in kconf.unique_defined_syms:
+        # Only show symbols that can be toggled. Choice symbols are a special
+        # case in that sym.assignable will be (2,) (length 1) for visible
+        # symbols in choices in y mode, but they can still be toggled by
+        # selecting some other symbol.
+        if sym.user_value is None and \
+           (len(sym.assignable) > 1 or
+            (sym.visibility and (sym.orig_type in (INT, HEX, STRING) or
+                                 sym.choice))):
+
+            # Don't reuse the 'config_string' format for bool/tristate symbols,
+            # to show n-valued symbols as 'CONFIG_FOO=n' instead of
+            # '# CONFIG_FOO is not set'. This matches the C tools.
+            if sym.orig_type in (BOOL, TRISTATE):
+                s = "{}{}={}\n".format(kconf.config_prefix, sym.name,
+                                       TRI_TO_STR[sym.tri_value])
+            else:
+                s = sym.config_string
+
+            print(s, end="")
+            if args.show_help:
+                for node in sym.nodes:
+                    if node.help is not None:
+                        # Indent by two spaces. textwrap.indent() is not
+                        # available in Python 2 (it's 3.3+).
+                        print("\n".join("  " + line
+                                        for line in node.help.split("\n")))
+                        break
+
+
+if __name__ == "__main__":
+    main()