forked from brl/citadel
212 lines
7.3 KiB
Python
Executable File
212 lines
7.3 KiB
Python
Executable File
#! /usr/bin/env python3
|
|
|
|
# TODO
|
|
# - option to just list all broken files
|
|
# - test suite
|
|
# - validate signed-off-by
|
|
|
|
|
|
class Result:
|
|
# Whether the patch has an Upstream-Status or not
|
|
missing_upstream_status = False
|
|
# If the Upstream-Status tag is malformed in some way (string for bad bit)
|
|
malformed_upstream_status = None
|
|
# If the Upstream-Status value is unknown (boolean)
|
|
unknown_upstream_status = False
|
|
# The upstream status value (Pending, etc)
|
|
upstream_status = None
|
|
# Whether the patch has a Signed-off-by or not
|
|
missing_sob = False
|
|
# Whether the Signed-off-by tag is malformed in some way
|
|
malformed_sob = False
|
|
# The Signed-off-by tag value
|
|
sob = None
|
|
# Whether a patch looks like a CVE but doesn't have a CVE tag
|
|
missing_cve = False
|
|
|
|
def blame_patch(patch):
|
|
"""
|
|
From a patch filename, return a list of "commit summary (author name <author
|
|
email>)" strings representing the history.
|
|
"""
|
|
import subprocess
|
|
return subprocess.check_output(("git", "log",
|
|
"--follow", "--find-renames", "--diff-filter=A",
|
|
"--format=%s (%aN <%aE>)",
|
|
"--", patch)).decode("utf-8").splitlines()
|
|
|
|
def patchreview(patches):
|
|
import re
|
|
|
|
# General pattern: start of line, optional whitespace, tag with optional
|
|
# hyphen or spaces, maybe a colon, some whitespace, then the value, all case
|
|
# insensitive.
|
|
sob_re = re.compile(r"^[\t ]*(Signed[-_ ]off[-_ ]by:?)[\t ]*(.+)", re.IGNORECASE | re.MULTILINE)
|
|
status_re = re.compile(r"^[\t ]*(Upstream[-_ ]Status:?)[\t ]*(\w*)", re.IGNORECASE | re.MULTILINE)
|
|
status_values = ("accepted", "pending", "inappropriate", "backport", "submitted", "denied")
|
|
cve_tag_re = re.compile(r"^[\t ]*(CVE:)[\t ]*(.*)", re.IGNORECASE | re.MULTILINE)
|
|
cve_re = re.compile(r"cve-[0-9]{4}-[0-9]{4,6}", re.IGNORECASE)
|
|
|
|
results = {}
|
|
|
|
for patch in patches:
|
|
result = Result()
|
|
results[patch] = result
|
|
|
|
content = open(patch, encoding='ascii', errors='ignore').read()
|
|
|
|
# Find the Signed-off-by tag
|
|
match = sob_re.search(content)
|
|
if match:
|
|
value = match.group(1)
|
|
if value != "Signed-off-by:":
|
|
result.malformed_sob = value
|
|
result.sob = match.group(2)
|
|
else:
|
|
result.missing_sob = True
|
|
|
|
|
|
# Find the Upstream-Status tag
|
|
match = status_re.search(content)
|
|
if match:
|
|
value = match.group(1)
|
|
if value != "Upstream-Status:":
|
|
result.malformed_upstream_status = value
|
|
|
|
value = match.group(2).lower()
|
|
# TODO: check case
|
|
if value not in status_values:
|
|
result.unknown_upstream_status = True
|
|
result.upstream_status = value
|
|
else:
|
|
result.missing_upstream_status = True
|
|
|
|
# Check that patches which looks like CVEs have CVE tags
|
|
if cve_re.search(patch) or cve_re.search(content):
|
|
if not cve_tag_re.search(content):
|
|
result.missing_cve = True
|
|
# TODO: extract CVE list
|
|
|
|
return results
|
|
|
|
|
|
def analyse(results, want_blame=False, verbose=True):
|
|
"""
|
|
want_blame: display blame data for each malformed patch
|
|
verbose: display per-file results instead of just summary
|
|
"""
|
|
|
|
# want_blame requires verbose, so disable blame if we're not verbose
|
|
if want_blame and not verbose:
|
|
want_blame = False
|
|
|
|
total_patches = 0
|
|
missing_sob = 0
|
|
malformed_sob = 0
|
|
missing_status = 0
|
|
malformed_status = 0
|
|
missing_cve = 0
|
|
pending_patches = 0
|
|
|
|
for patch in sorted(results):
|
|
r = results[patch]
|
|
total_patches += 1
|
|
need_blame = False
|
|
|
|
# Build statistics
|
|
if r.missing_sob:
|
|
missing_sob += 1
|
|
if r.malformed_sob:
|
|
malformed_sob += 1
|
|
if r.missing_upstream_status:
|
|
missing_status += 1
|
|
if r.malformed_upstream_status or r.unknown_upstream_status:
|
|
malformed_status += 1
|
|
if r.missing_cve:
|
|
missing_cve += 1
|
|
if r.upstream_status == "pending":
|
|
pending_patches += 1
|
|
|
|
# Output warnings
|
|
if r.missing_sob:
|
|
need_blame = True
|
|
if verbose:
|
|
print("Missing Signed-off-by tag (%s)" % patch)
|
|
# TODO: disable this for now as too much fails
|
|
if False and r.malformed_sob:
|
|
need_blame = True
|
|
if verbose:
|
|
print("Malformed Signed-off-by '%s' (%s)" % (r.malformed_sob, patch))
|
|
if r.missing_cve:
|
|
need_blame = True
|
|
if verbose:
|
|
print("Missing CVE tag (%s)" % patch)
|
|
if r.missing_upstream_status:
|
|
need_blame = True
|
|
if verbose:
|
|
print("Missing Upstream-Status tag (%s)" % patch)
|
|
if r.malformed_upstream_status:
|
|
need_blame = True
|
|
if verbose:
|
|
print("Malformed Upstream-Status '%s' (%s)" % (r.malformed_upstream_status, patch))
|
|
if r.unknown_upstream_status:
|
|
need_blame = True
|
|
if verbose:
|
|
print("Unknown Upstream-Status value '%s' (%s)" % (r.upstream_status, patch))
|
|
|
|
if want_blame and need_blame:
|
|
print("\n".join(blame_patch(patch)) + "\n")
|
|
|
|
def percent(num):
|
|
try:
|
|
return "%d (%d%%)" % (num, round(num * 100.0 / total_patches))
|
|
except ZeroDivisionError:
|
|
return "N/A"
|
|
|
|
if verbose:
|
|
print()
|
|
|
|
print("""Total patches found: %d
|
|
Patches missing Signed-off-by: %s
|
|
Patches with malformed Signed-off-by: %s
|
|
Patches missing CVE: %s
|
|
Patches missing Upstream-Status: %s
|
|
Patches with malformed Upstream-Status: %s
|
|
Patches in Pending state: %s""" % (total_patches,
|
|
percent(missing_sob),
|
|
percent(malformed_sob),
|
|
percent(missing_cve),
|
|
percent(missing_status),
|
|
percent(malformed_status),
|
|
percent(pending_patches)))
|
|
|
|
|
|
|
|
def histogram(results):
|
|
from toolz import recipes, dicttoolz
|
|
import math
|
|
counts = recipes.countby(lambda r: r.upstream_status, results.values())
|
|
bars = dicttoolz.valmap(lambda v: "#" * int(math.ceil(float(v) / len(results) * 100)), counts)
|
|
for k in bars:
|
|
print("%-20s %s (%d)" % (k.capitalize() if k else "No status", bars[k], counts[k]))
|
|
|
|
|
|
if __name__ == "__main__":
|
|
import argparse, subprocess, os
|
|
|
|
args = argparse.ArgumentParser(description="Patch Review Tool")
|
|
args.add_argument("-b", "--blame", action="store_true", help="show blame for malformed patches")
|
|
args.add_argument("-v", "--verbose", action="store_true", help="show per-patch results")
|
|
args.add_argument("-g", "--histogram", action="store_true", help="show patch histogram")
|
|
args.add_argument("directory", nargs="?", help="directory to scan")
|
|
args = args.parse_args()
|
|
|
|
if args.directory:
|
|
os.chdir(args.directory)
|
|
patches = subprocess.check_output(("git", "ls-files", "*.patch", "*.diff")).decode("utf-8").split()
|
|
results = patchreview(patches)
|
|
analyse(results, want_blame=args.blame, verbose=args.verbose)
|
|
if args.histogram:
|
|
print()
|
|
histogram(results)
|