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# 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
#
# ...
from kconfiglib import Kconfig, Symbol, Choice, MENU, COMMENT
import re
import sys
if len(sys.argv) < 3:
print('Pass the regex with SCRIPT_ARG=regex')
sys.exit(1)
search = re.compile(sys.argv[2], re.IGNORECASE).search
def search_tree(node):
while node:
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))
if node.list:
search_tree(node.list)
node = node.next
kconf = Kconfig(sys.argv[1])
search_tree(kconf.top_node)
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