/usr/bin/bls-standalone is in bls-standalone 0.20151231.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
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# Copyright 2014,2015 Bernhard R. Link <brlink@debian.org>
#
# Permission is hereby granted, free of charge, to any person obtaining a
# copy of this software and associated documentation files (the "Software"),
# to deal in the Software without restriction, including without limitation
# the rights to use, copy, modify, merge, publish, distribute, sublicense,
# and/or sell copies of the Software, and to permit persons to whom the
# Software is furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
# SOFTWARE IN THE PUBLIC INTEREST, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR
# OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
# ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
# DEALINGS IN THE SOFTWARE.
import argparse
import os
import sys
import subprocess
libdirdefault = '/usr/lib/bls-standalone'
sharedirdefault = '/usr/share/bls-standalone'
def parse_args():
parser = argparse.ArgumentParser(description="scan build logs for possible problems")
parser.add_argument("-v", "--verbose", action="store_true", dest="verbose", default=False)
parser.add_argument("--libdir", type=str, dest="libdir", default=libdirdefault)
parser.add_argument("--sharedir", type=str, dest="sharedir", default=sharedirdefault)
commands = parser.add_subparsers(dest="command")
check_parser = commands.add_parser("check", help="check the given build logs")
check_parser.add_argument("--compiledrulesfile", type=str, dest="rulesfile")
check_parser.add_argument("--blhc", type=str, dest="blhc", help="path to blhc binary ('NO' to disable calling it)")
check_parser.add_argument("filename", type=str, nargs='+', help="build logs to scan")
update_parser = commands.add_parser("compile", help="update rule definitions")
update_parser.add_argument("-o", "--compiledrulesfile", type=str, dest="rulesfile")
update_parser.add_argument("-p", "--ignorecheckout", action="store_true", default=False, dest="ignorecheckout")
update_parser.add_argument("-N", "--no-defaults", action="store_true", default=False, dest="nodefaults")
update_parser.add_argument("rules", type=str, nargs='*', help="rule files or directories containing them")
update_parser = commands.add_parser("checkout", help="checkout current rule definitions")
args = parser.parse_args()
if not args.command:
parser.error("No command given.")
return args
def cachedir(args):
h = os.environ.get("HOME", None)
if h:
c = os.path.join(h, ".bls-cache")
if os.path.exists(c):
return c
c = os.environ.get("XDG_CACHE_HOME", None)
if not c and h:
c = os.path.join(h, ".cache")
if c:
return os.path.join(c, "bls")
return None
def rulesfile(args):
if args.rulesfile:
if os.path.exists(args.rulesfile):
return args.rulesfile
else:
return None
cache_dir = cachedir(args)
if cache_dir and os.path.exists(cache_dir):
rfn = os.path.join(cache_dir, "rules.compiled")
if os.path.exists(rfn):
return rfn
rfn = os.path.join(args.sharedir, "rules.compiled")
if os.path.exists(rfn):
return rfn
return None
def rulesources(args):
sources = []
for fn in args.rules:
sources.append((fn, "command line"))
if not args.nodefaults:
h = os.environ.get("HOME", None)
if h:
sources.append((os.path.join(h, ".bls", "rules"), "config"))
c = os.environ.get("XDG_CONFIG_HOME", None)
if not c and h:
c = os.path.join(h, ".config")
if not os.path.exists(c):
c = None
if c:
sources.append((os.path.join(c, "bls", "rules"), "config"))
cd = cachedir(args)
checkoutdir = os.path.join(cd, "checkout")
if args.ignorecheckout or not os.path.exists(checkoutdir):
sources.append((args.sharedir, "shipped"))
else:
sources.append((checkoutdir, "checkout"))
return sources
def do_compile(args):
results = []
rules = {}
for source, typ in rulesources(args):
if not os.path.exists(source):
if typ == "command line":
print("No such file or directory: %s" % repr(source), file=sys.stderr)
sys.exit(2)
else:
results.append((source, typ, "directory ignored as not found"))
continue
if not os.path.isdir(source):
if typ != "command line":
results.append((source, typ, "ignored, not a directory"))
continue
filename = os.path.basename(source)
if filename in rules:
print("WARNING: command line argument %s ignored (as same nameas %s)" % (repr(source), repr(rules[filename])), file=sys.stderr)
results.append((source, typ, "ignored"))
else:
rules[filename] = source
results.append((source, typ, "rules file"))
continue
ignoredCount = 0
usedCount = 0
foundCount = 0
for dirpath, dirnames, filenames in os.walk(source, topdown=True):
dirnames = True
for filename in filenames:
if not (filename.endswith(".description") or filename.endswith(".switch")):
continue
if filename in rules:
ignoredCount = ignoredCount + 1
continue
rules[filename] = os.path.join(dirpath, filename)
usedCount = usedCount + 1
if ignoredCount:
results.append((source, typ, "directory with %d rules file (%d more ignored as shadowed by files of the same name in different locations)" % (usedCount, ignoredCount)))
else:
results.append((source, typ, "directory with %d rules file" % usedCount))
if args.verbose:
for source, typ, description in reversed(results):
print("%s [%s]: %s" % (source, typ, description))
rfn = args.rulesfile
if rfn is None:
rfn = os.path.join(cachedir(args), "rules.compiled")
os.makedirs(os.path.dirname(rfn), exist_ok=True)
cmd = [os.path.join(args.libdir,"compile"), "-o", rfn]
for filename in sorted(rules):
cmd.append(rules[filename])
cmdline = " ".join(repr(x) for x in cmd)
if args.verbose:
print("Running %s" % cmdline)
child = subprocess.Popen(cmd, stdin=subprocess.DEVNULL, stdout=None, stderr=None)
child.wait()
if child.returncode:
if child.returncode < 0:
print("Command %s killed by signal %d" % (cmdline, -child.returncode), file=sys.stderr)
else:
print("Command %s failed with exit code %d" % (cmdline, child.returncode), file=sys.stderr)
return 2
return 0
def add_findings(findings, lines):
for l in lines:
if not l:
continue
tag, detail, lineno = l.split("|",2)
if lineno:
lineno = int(lineno)
else:
lineno = None
findings.append((tag, detail, lineno))
def do_check(args):
status = 0
blhc = args.blhc
if not blhc:
blhc = "/usr/bin/blhc"
if not os.path.exists(blhc):
print("No blhc installed. blhc results will not be included (use --blhc=NO to disable)", file=sys.stderr)
blhc = None
elif blhc == "NO":
blhc = None
elif not os.path.exists(blhc):
print("No such file %s (given as --blhc)" % blhc, file=sys.stderr)
sys.exit(2)
rfn = rulesfile(args)
if not rfn:
print("Fatal error: Cannot find rules file.", file=sys.stderr)
sys.exit(2)
for filename in args.filename:
findings = []
# TODO: support scanning compressed files...
# call the scanner:
cmd = [os.path.join(args.libdir,"scan"), "-r", rfn, filename]
child = subprocess.Popen(cmd, stdin=subprocess.DEVNULL, stdout=subprocess.PIPE, stderr=None)
cmd = " ".join(repr(x) for x in cmd)
out, err = child.communicate(None)
lines = out.decode("UTF-8").split("\n")
if child.returncode:
if child.returncode < 0:
print("Command %s killed by signal %d" % (cmd, -child.returncode), file=sys.stderr)
else:
print("Command %s failed with exit code %d" % (cmd,child.returncode), file=sys.stderr)
status = 2
else:
if len(lines) > 0 and lines[-1] != "":
print("Command %s returned malformed data" % cmd, file=sys.stderr)
status = 2
add_findings(findings, lines)
if blhc:
cmd = [blhc, "--buildd", filename]
child = subprocess.Popen(cmd, stdin=subprocess.DEVNULL, stdout=subprocess.PIPE, stderr=None)
cmd = " ".join(repr(x) for x in cmd)
out, err = child.communicate(None)
lines = out.decode("UTF-8").split("\n")
if child.returncode:
if child.returncode < 0:
print("Command %s killed by signal %d" % (cmd, -child.returncode), file=sys.stderr)
else:
print("Command %s failed with exit code %d" % (cmd,child.returncode), file=sys.stderr)
status = 2
else:
if len(lines) > 0 and lines[-1] != "":
print("Command %s returned malformed data" % cmd, file=sys.stderr)
status = 2
add_findings(findings, lines)
# output results:
for (tag, detail, lineno) in findings:
print("%s%s%s: %s %s%s%s" % (
filename,
"" if lineno is None else ":",
"" if lineno is None else str(lineno),
tag,
"(" if detail else "",
detail,
")" if detail else "",
))
# TODO: output line triggering this
return status
def do_checkout(args):
cd = cachedir(args)
checkoutdir = os.path.join(cd, "checkout")
os.makedirs(os.path.dirname(checkoutdir), exist_ok=True)
cmd = ["svn","checkout", "svn://svn.debian.org/svn/qa/trunk/data/bls/descriptions", checkoutdir]
cmdline = " ".join(cmd)
child = subprocess.Popen(cmd, stdin=None, stdout=None, stderr=None)
child.wait()
if child.returncode:
if child.returncode < 0:
print("Command %s killed by signal %d" % (cmdline, -child.returncode), file=sys.stderr)
else:
print("Command %s failed with exit code %d" % (cmdline, child.returncode), file=sys.stderr)
return 2
return 0
args = parse_args()
if args.command == "compile":
r = do_compile(args)
elif args.command == "check":
r = do_check(args)
elif args.command == "checkout":
r = do_checkout(args)
else:
parser.error("Unknown command")
r = 255
sys.exit(r)
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