[Add] 打通Kconfiglib配置操作

scripts/kconfig/Kconfiglib/examples/help_grep.py

@@ -0,0 +1,64 @@
+# Does a case-insensitive search for a regular expression in the help texts of
+# symbols and choices and the prompts of menus and comments. Prints the
+# matching items together with their locations and the matching text.
+#
+# Usage:
+#
+#   $ make [ARCH=<arch>] scriptconfig SCRIPT=Kconfiglib/examples/help_grep.py SCRIPT_ARG=<regex>
+#
+# Shortened example output for SCRIPT_ARG=general:
+#
+#   menu "General setup"
+#   location: init/Kconfig:39
+#
+#   config SYSVIPC
+#   	bool
+#   	prompt "System V IPC"
+#   	help
+#   	  ...
+#   	  exchange information. It is generally considered to be a good thing,
+#   	  ...
+#
+#   location: init/Kconfig:233
+#
+#   config BSD_PROCESS_ACCT
+#   	bool
+#   	prompt "BSD Process Accounting" if MULTIUSER
+#   	help
+#   	  ...
+#   	  information.  This is generally a good idea, so say Y.
+#
+#   location: init/Kconfig:403
+#
+#   ...
+
+
+import re
+import sys
+
+from kconfiglib import Kconfig, Symbol, Choice, MENU, COMMENT
+
+
+if len(sys.argv) < 3:
+    sys.exit("Pass the regex with SCRIPT_ARG=<regex>")
+
+search = re.compile(sys.argv[2], re.IGNORECASE).search
+
+for node in Kconfig(sys.argv[1]).node_iter():
+    match = False
+
+    if isinstance(node.item, (Symbol, Choice)) and \
+       node.help is not None and search(node.help):
+        print(node.item)
+        match = True
+
+    elif node.item == MENU and search(node.prompt[0]):
+        print('menu "{}"'.format(node.prompt[0]))
+        match = True
+
+    elif node.item == COMMENT and search(node.prompt[0]):
+        print('comment "{}"'.format(node.prompt[0]))
+        match = True
+
+    if match:
+        print("location: {}:{}\n".format(node.filename, node.linenr))