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This script checks for inconsistencies on symbols declared in Config.in and used in .mk files. Currently it checks only symbols following the pattern BR2_\w+ . The script first gets the list of all files in the repository (using git ls-files like 'make check-flake8' already do). Then it parses all relevant files, searching for symbol definitions and usages, and add entries into a database. At the end, the database is searched for inconsistencies: - symbol that is part of "choice" and is referenced with "select"; - legacy symbol being referenced in packages; - legacy symbol being redefined in packages; - symbol referenced but not defined; - symbol defined but not referenced; - legacy symbol that has a Note stating it is referenced by a package (for legacy handling) but is referenced in the package without a comment "# legacy"; - legacy symbol that has a Note stating it is referenced by a package but it is not actually referenced. There is also a debug parameter --search that dumps any filename or symbol entries from the database that matches a regexp. Sample usages: $ utils/check-symbols $ utils/docker-run utils/check-symbols $ utils/check-symbols --search 'GETTEXT\b|\/openssl' At same time the script is created: - add unit tests for it, they can be run using: utils/docker-run python3 -m pytest -v utils/checksymbolslib/ - add two more GitLab CI jobs: check-symbols (to check current tree using the script) and check-check-symbols (to check the script against its unit tests) Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com> Signed-off-by: Ricardo Martincoski <ricardo.martincoski@gmail.com> [Peter: print warnings to stderr, rename change_current_dir() to change_to_top_dir()] Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
140 lines
4.3 KiB
Python
140 lines
4.3 KiB
Python
import os
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import checksymbolslib.br as br
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def all_symbols_from(line):
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clean_line = br.re_comments.sub('', line)
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symbols = br.re_kconfig_symbol.findall(clean_line)
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return symbols
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def handle_definition(db, filename, lineno, line, legacy):
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for symbol in all_symbols_from(line):
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if legacy:
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db.add_symbol_legacy_definition(symbol, filename, lineno)
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else:
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db.add_symbol_definition(symbol, filename, lineno)
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def handle_usage(db, filename, lineno, line, legacy):
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for symbol in all_symbols_from(line):
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if legacy:
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db.add_symbol_usage_in_legacy(symbol, filename, lineno)
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else:
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db.add_symbol_usage(symbol, filename, lineno)
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def handle_default(db, filename, lineno, line, legacy):
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if legacy:
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handle_usage(db, filename, lineno, line, legacy)
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return
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if not br.re_kconfig_default_legacy_comment.search(line):
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handle_usage(db, filename, lineno, line, legacy)
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return
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after = br.re_kconfig_default_before_conditional.sub('', line)
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for symbol in all_symbols_from(after):
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db.add_symbol_legacy_usage(symbol, filename, lineno)
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def handle_select(db, filename, lineno, line, legacy):
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handle_usage(db, filename, lineno, line, legacy)
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before = br.re_kconfig_select_conditional.sub('', line)
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for symbol in all_symbols_from(before):
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db.add_symbol_select(symbol, filename, lineno)
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line_type_handlers = {
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br.re_kconfig_config: handle_definition,
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br.re_kconfig_default: handle_default,
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br.re_kconfig_depends: handle_usage,
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br.re_kconfig_if: handle_usage,
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br.re_kconfig_select: handle_select,
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br.re_kconfig_source: handle_usage,
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}
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def handle_line(db, filename, lineno, line, legacy):
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if not br.re_kconfig_symbol.search(line):
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return
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for regexp, line_type_handler in line_type_handlers.items():
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if regexp.search(line):
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line_type_handler(db, filename, lineno, line, legacy)
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def handle_config_helper(db, filename, file_content):
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symbol = None
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lineno = None
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state = 'none'
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for cur_lineno, line in file_content:
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if state == 'none':
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m = br.re_kconfig_config.search(line)
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if m is not None:
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symbol = m.group(2)
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lineno = cur_lineno
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state = 'config'
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continue
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if state == 'config':
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if br.re_kconfig_select.search(line):
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db.add_symbol_helper(symbol, filename, lineno)
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state = 'none'
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continue
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m = br.re_kconfig_config.search(line)
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if m is not None:
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symbol = m.group(2)
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lineno = cur_lineno
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continue
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def handle_config_choice(db, filename, file_content):
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state = 'none'
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for lineno, line in file_content:
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if state == 'none':
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if br.re_kconfig_choice.search(line):
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state = 'choice'
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continue
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if state == 'choice':
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if br.re_kconfig_endchoice.search(line):
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state = 'none'
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continue
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m = br.re_kconfig_config.search(line)
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if m is not None:
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symbol = m.group(2)
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db.add_symbol_choice(symbol, filename, lineno)
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continue
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def handle_note(db, filename, file_content):
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state = 'none'
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for lineno, line in file_content:
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if state == 'none':
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if br.re_menu.search(line):
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state = 'menu'
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continue
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if state == 'menu':
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if br.re_endmenu.search(line):
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state = 'none'
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continue
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m = br.re_legacy_special_comment.search(line)
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if m is not None:
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symbol = m.group(1)
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db.add_symbol_legacy_note(symbol, filename, lineno)
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continue
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def populate_db(db, filename, file_content):
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legacy = filename.endswith('.legacy')
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for lineno, line in file_content:
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handle_line(db, filename, lineno, line, legacy)
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handle_config_helper(db, filename, file_content)
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handle_config_choice(db, filename, file_content)
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if legacy:
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handle_note(db, filename, file_content)
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def check_filename(filename):
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if os.path.basename(filename).startswith('Config.'):
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return True
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return False
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