Files
RedBear-OS/local/recipes/dev/libclc/source/llvm/utils/bisect-skip-count
T
vasilito cb424d7448 build: static patch-sanity linter (shift-left the malformed-patch class)
verify-patch-sanity.py validates every active recipe .patch has internally-
consistent hunk line counts — catching the 'malformed patch at line N' failure
at commit/CI/preflight time instead of hours into a cook. This cycle hit that
class three times (qtwaylandscanner, sddm, xwayland), each only discovered when
cookbook tried to apply the patch.

Running it across the repo found 29 latent malformed patches (validated against
GNU patch: e.g. relibc/P3-sysv-ipc reproduces 'malformed patch at line 22').
They were harmless only because they sit in vendored recipes (baked, not re-
applied) — but would fail on any version-bump re-derivation. --fix recounts the
hunk headers (body untouched) and repaired all 29.

Wired into build-preflight.sh (Phase 1.0D) and redbear-ci.yml, with a unit test
(test-patch-sanity.sh). Skips archived/legacy trees and unvalidatable formats
(empty placeholders, bare-@@ git hunks).
2026-08-01 05:13:02 +03:00

96 lines
3.2 KiB
Python
Executable File

#!/usr/bin/env python3
# This script is used to bisect skip and count arguments for --debug-counter.
# It is similar to bisect, except it understands how to increase skip and decrease count
#
# Typical usage:
#
# bisect-skip-count bisect-command.sh "%(skip)d" "%(count)d" 2>&1 | tee bisect.out
#
# bisect-command.sh is something like this:
# #! /bin/bash
#
# skip=$1
# count=$2
#
# opt -debug-counter=my-counter-skip=${skip},my-counter-count=${count}
# ... Test output of opt and exit zero for pass, non-zero for fail
#
# Examine bisect.out to look for "Last good skip" and "Last good
# count" to find the values of the counter that produce a passing
# result. Incrementing the last good count by one or decrementing the
# last good skip by one should produce a failure.
#
from __future__ import print_function
import os
import sys
import argparse
# This is for timeout support. Use the recommended way of import.
# We do timeouts because when doing, execution testing, we have a habit
# of finding variants that infinite loop
if os.name == 'posix' and sys.version_info[0] < 3:
import subprocess32 as subprocess
else:
import subprocess
parser = argparse.ArgumentParser()
parser.add_argument('--skipstart', type=int, default=0)
parser.add_argument('--skipend', type=int, default=(1 << 32))
parser.add_argument('--countstart', type=int, default=0)
parser.add_argument('--countend', type=int, default=(1 << 32))
parser.add_argument('--timeout', type=int, default=None)
# Use shell support if you need to use complex shell expressions in your command
parser.add_argument('--shell', type=bool, default=False)
parser.add_argument('command', nargs='+')
args = parser.parse_args()
start = args.skipstart
end = args.skipend
print("Bisect of Skip starting!")
print("Start: %d" % start)
print("End: %d" % end)
last = None
while start != end and start != end-1:
count = start + (end - start)//2
print("Visiting Skip: %d with (Start, End) = (%d,%d)" % (count, start, end))
cmd = [x % {'skip':count, 'count':-1} for x in args.command]
print(cmd)
try:
result = subprocess.call(cmd, shell=args.shell, timeout=args.timeout)
if result == 0:
print(" PASSES! Setting end to count")
end = count
else:
print(" FAILS! Setting start to count")
start = count
except:
print(" TIMEOUT, setting end to count")
end = count
firstcount = start
print("Last good skip: %d" % start)
start = args.countstart
end = args.countend
print("Bisect of Count starting!")
print("Start: %d" % start)
print("End: %d" % end)
while start != end and start != end-1:
count = start + (end - start)//2
print("Visiting Count: %d with (Start, End) = (%d,%d)" % (count, start, end))
cmd = [x % {'count':count, 'skip':firstcount } for x in args.command]
print(cmd)
try:
result = subprocess.call(cmd, shell=args.shell, timeout=args.timeout)
if result == 0:
print(" PASSES! Setting start to count")
start = count
else:
print(" FAILS! Setting end to count")
end = count
except:
print(" TIMEOUT, setting start to count")
start = count
print("Last good count: %d" % start)