Commit 1b2c8414 authored by Valentin Rothberg's avatar Valentin Rothberg Committed by Greg Kroah-Hartman

checkkconfigsymbols.py: find similar symbols

Add support to find string-similar symbols.  When option --sim SYM is
specified, checkkconfigsymbols.py will print at most 10 symbols defined
in Kconfig that are string similar to SYM in the following format:
    Similar symbols: $COMMA_SEPARATED_LIST_OF_SYMBOLS

Note, if no similar symbols are found it is indicated as follows:
    Similar symbols: no similar symbols found

Since the implemented functionality is also useful when searching the
entire source or when diffing two commits, a list of similar symbols is
printed unconditionally with the other data.  In order to make the
output more readable, the format now looks as follows:

    $UNDEFINED_SYMBOL
    Referencing files: $COMMA_SEPARATED_LIST_OF_FILES
    Similar symbols: $COMMA_SEPARATED_LIST_OF_SYMBOLS
    [Optional with '--find']
    Commits changing symbol:
        - $COMMIT_1_HASH ("$COMMIT_1_MESSAGE")
        - $COMMIT_2_HASH ("$COMMIT_2_MESSAGE")
            or
        - no commit found
Signed-off-by: default avatarValentin Rothberg <valentinrothberg@gmail.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent e2042a8a
......@@ -8,6 +8,7 @@
# Licensed under the terms of the GNU GPL License version 2
import difflib
import os
import re
import signal
......@@ -74,6 +75,9 @@ def parse_options():
"the pattern needs to be a Python regex. To "
"ignore defconfigs, specify -i '.*defconfig'.")
parser.add_option('-s', '--sim', dest='sim', action='store', default="",
help="Print a list of maximum 10 string-similar symbols.")
parser.add_option('', '--force', dest='force', action='store_true',
default=False,
help="Reset current Git tree even when it's dirty.")
......@@ -112,6 +116,18 @@ def main():
"""Main function of this module."""
opts = parse_options()
if opts.sim and not opts.commit and not opts.diff:
sims = find_sims(opts.sim, opts.ignore)
if sims:
print "%s: %s" % (yel("Similar symbols"), ', '.join(sims))
else:
print "%s: no similar symbols found" % yel("Similar symbols")
sys.exit(0)
# dictionary of (un)defined symbols
defined = {}
undefined = {}
if opts.commit or opts.diff:
head = get_head()
......@@ -130,40 +146,56 @@ def main():
# get undefined items before the commit
execute("git reset --hard %s" % commit_a)
undefined_a = check_symbols(opts.ignore)
undefined_a, _ = check_symbols(opts.ignore)
# get undefined items for the commit
execute("git reset --hard %s" % commit_b)
undefined_b = check_symbols(opts.ignore)
undefined_b, defined = check_symbols(opts.ignore)
# report cases that are present for the commit but not before
for feature in sorted(undefined_b):
# feature has not been undefined before
if not feature in undefined_a:
files = sorted(undefined_b.get(feature))
print "%s\t%s" % (yel(feature), ", ".join(files))
if opts.find:
commits = find_commits(feature, opts.diff)
print red(commits)
undefined[feature] = files
# check if there are new files that reference the undefined feature
else:
files = sorted(undefined_b.get(feature) -
undefined_a.get(feature))
if files:
print "%s\t%s" % (yel(feature), ", ".join(files))
if opts.find:
commits = find_commits(feature, opts.diff)
print red(commits)
undefined[feature] = files
# reset to head
execute("git reset --hard %s" % head)
# default to check the entire tree
else:
undefined = check_symbols(opts.ignore)
undefined, defined = check_symbols(opts.ignore)
# now print the output
for feature in sorted(undefined):
print red(feature)
files = sorted(undefined.get(feature))
print "%s\t%s" % (yel(feature), ", ".join(files))
print "%s: %s" % (yel("Referencing files"), ", ".join(files))
sims = find_sims(feature, opts.ignore, defined)
sims_out = yel("Similar symbols")
if sims:
print "%s: %s" % (sims_out, ', '.join(sims))
else:
print "%s: %s" % (sims_out, "no similar symbols found")
if opts.find:
print "%s:" % yel("Commits changing symbol")
commits = find_commits(feature, opts.diff)
if commits:
for commit in commits:
commit = commit.split(" ", 1)
print "\t- %s (\"%s\")" % (yel(commit[0]), commit[1])
else:
print "\t- no commit found"
print # new line
def yel(string):
......@@ -193,7 +225,7 @@ def find_commits(symbol, diff):
"""Find commits changing %symbol in the given range of %diff."""
commits = execute("git log --pretty=oneline --abbrev-commit -G %s %s"
% (symbol, diff))
return commits
return [x for x in commits.split("\n") if x]
def tree_is_dirty():
......@@ -222,6 +254,45 @@ def init_worker():
signal.signal(signal.SIGINT, signal.SIG_IGN)
def find_sims(symbol, ignore, defined = []):
"""Return a list of max. ten Kconfig symbols that are string-similar to
@symbol."""
if defined:
return sorted(difflib.get_close_matches(symbol, set(defined), 10))
pool = Pool(cpu_count(), init_worker)
kfiles = []
for gitfile in get_files():
if REGEX_FILE_KCONFIG.match(gitfile):
kfiles.append(gitfile)
arglist = []
for part in partition(kfiles, cpu_count()):
arglist.append((part, ignore))
for res in pool.map(parse_kconfig_files, arglist):
defined.extend(res[0])
return sorted(difflib.get_close_matches(symbol, set(defined), 10))
def get_files():
"""Return a list of all files in the current git directory."""
# use 'git ls-files' to get the worklist
stdout = execute("git ls-files")
if len(stdout) > 0 and stdout[-1] == "\n":
stdout = stdout[:-1]
files = []
for gitfile in stdout.rsplit("\n"):
if ".git" in gitfile or "ChangeLog" in gitfile or \
".log" in gitfile or os.path.isdir(gitfile) or \
gitfile.startswith("tools/"):
continue
files.append(gitfile)
return files
def check_symbols(ignore):
"""Find undefined Kconfig symbols and return a dict with the symbol as key
and a list of referencing files as value. Files matching %ignore are not
......@@ -243,16 +314,7 @@ def check_symbols_helper(pool, ignore):
defined_features = []
referenced_features = dict() # {file: [features]}
# use 'git ls-files' to get the worklist
stdout = execute("git ls-files")
if len(stdout) > 0 and stdout[-1] == "\n":
stdout = stdout[:-1]
for gitfile in stdout.rsplit("\n"):
if ".git" in gitfile or "ChangeLog" in gitfile or \
".log" in gitfile or os.path.isdir(gitfile) or \
gitfile.startswith("tools/"):
continue
for gitfile in get_files():
if REGEX_FILE_KCONFIG.match(gitfile):
kconfig_files.append(gitfile)
else:
......@@ -296,7 +358,7 @@ def check_symbols_helper(pool, ignore):
if feature[:-len("_MODULE")] in defined_features:
continue
undefined[feature] = referenced_features.get(feature)
return undefined
return undefined, defined_features
def parse_source_files(source_files):
......
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