poky/bitbake/bin/bitbake-diffsigs

#!/usr/bin/env python3

bitbake-diffsigs / bitbake-dumpsig

BitBake task signature data dump and comparison utility

Copyright (C) 2012-2013, 2017 Intel Corporation

SPDX-License-Identifier: GPL-2.0-only

import os import sys import warnings import argparse import logging import pickle

sys.path.insert(0, os.path.join(os.path.dirname(os.path.dirname(sys.argv[0])), 'lib'))

import bb.tinfoil import bb.siggen import bb.msg

myname = os.path.basename(sys.argv[0]) logger = bb.msg.logger_create(myname)

is_dump = myname == 'bitbake-dumpsig'

def find_siginfo(tinfoil, pn, taskname, sigs=None): result = None tinfoil.set_event_mask(['bb.event.FindSigInfoResult', 'logging.LogRecord', 'bb.command.CommandCompleted', 'bb.command.CommandFailed']) ret = tinfoil.run_command('findSigInfo', pn, taskname, sigs) if ret: while True: event = tinfoil.wait_event(1) if event: if isinstance(event, bb.command.CommandCompleted): break elif isinstance(event, bb.command.CommandFailed): logger.error(str(event)) sys.exit(2) elif isinstance(event, bb.event.FindSigInfoResult): result = event.result elif isinstance(event, logging.LogRecord): logger.handle(event) else: logger.error('No result returned from findSigInfo command') sys.exit(2) return result

def find_siginfo_task(bbhandler, pn, taskname, sig1=None, sig2=None): """ Find the most recent signature files for the specified PN/task """

if not taskname.startswith('do_'):
    taskname = 'do_%s' % taskname

if sig1 and sig2:
    sigfiles = find_siginfo(bbhandler, pn, taskname, [sig1, sig2])
    if len(sigfiles) == 0:
        logger.error('No sigdata files found matching %s %s matching either %s or %s' % (pn, taskname, sig1, sig2))
        sys.exit(1)
    elif not sig1 in sigfiles:
        logger.error('No sigdata files found matching %s %s with signature %s' % (pn, taskname, sig1))
        sys.exit(1)
    elif not sig2 in sigfiles:
        logger.error('No sigdata files found matching %s %s with signature %s' % (pn, taskname, sig2))
        sys.exit(1)
    latestfiles = [sigfiles[sig1], sigfiles[sig2]]
else:
    filedates = find_siginfo(bbhandler, pn, taskname)
    latestfiles = sorted(filedates.keys(), key=lambda f: filedates[f])[-2:]
    if not latestfiles:
        logger.error('No sigdata files found matching %s %s' % (pn, taskname))
        sys.exit(1)

return latestfiles

Define recursion callback

def recursecb(key, hash1, hash2): hashes = [hash1, hash2] hashfiles = find_siginfo(tinfoil, key, None, hashes)

recout = []
if len(hashfiles) == 0:
    recout.append("Unable to find matching sigdata for %s with hashes %s or %s" % (key, hash1, hash2))
elif not hash1 in hashfiles:
    recout.append("Unable to find matching sigdata for %s with hash %s" % (key, hash1))
elif not hash2 in hashfiles:
    recout.append("Unable to find matching sigdata for %s with hash %s" % (key, hash2))
else:
    out2 = bb.siggen.compare_sigfiles(hashfiles[hash1], hashfiles[hash2], recursecb, color=color)
    for change in out2:
        for line in change.splitlines():
            recout.append('    ' + line)

return recout

parser = argparse.ArgumentParser( description=("Dumps" if is_dump else "Compares") + " siginfo/sigdata files written out by BitBake")

parser.add_argument('-D', '--debug', help='Enable debug output', action='store_true')

if is_dump: parser.add_argument("-t", "--task", help="find the signature data file for the last run of the specified task", action="store", dest="taskargs", nargs=2, metavar=('recipename', 'taskname'))

parser.add_argument("sigdatafile1",
        help="Signature file to dump. Not used when using -t/--task.",
        action="store", nargs='?', metavar="sigdatafile")

else: parser.add_argument('-c', '--color', help='Colorize the output (where %(metavar)s is %(choices)s)', choices=['auto', 'always', 'never'], default='auto', metavar='color')

parser.add_argument('-d', '--dump',
        help='Dump the last signature data instead of comparing (equivalent to using bitbake-dumpsig)',
        action='store_true')

parser.add_argument("-t", "--task",
        help="find the signature data files for the last two runs of the specified task and compare them",
        action="store", dest="taskargs", nargs=2, metavar=('recipename', 'taskname'))

parser.add_argument("-s", "--signature",
        help="With -t/--task, specify the signatures to look for instead of taking the last two",
        action="store", dest="sigargs", nargs=2, metavar=('fromsig', 'tosig'))

parser.add_argument("sigdatafile1",
        help="First signature file to compare (or signature file to dump, if second not specified). Not used when using -t/--task.",
        action="store", nargs='?')

parser.add_argument("sigdatafile2",
        help="Second signature file to compare",
        action="store", nargs='?')

options = parser.parse_args() if is_dump: options.color = 'never' options.dump = True options.sigdatafile2 = None options.sigargs = None

if options.debug: logger.setLevel(logging.DEBUG)

color = (options.color == 'always' or (options.color == 'auto' and sys.stdout.isatty()))

if options.taskargs: with bb.tinfoil.Tinfoil() as tinfoil: tinfoil.prepare(config_only=True) if not options.dump and options.sigargs: files = find_siginfo_task(tinfoil, options.taskargs[0], options.taskargs[1], options.sigargs[0], options.sigargs[1]) else: files = find_siginfo_task(tinfoil, options.taskargs[0], options.taskargs[1])

    if options.dump:
        logger.debug("Signature file: %s" % files[-1])
        output = bb.siggen.dump_sigfile(files[-1])
    else:
        if len(files) < 2:
            logger.error('Only one matching sigdata file found for the specified task (%s %s)' % (options.taskargs[0], options.taskargs[1]))
            sys.exit(1)

        # Recurse into signature comparison
        logger.debug("Signature file (previous): %s" % files[-2])
        logger.debug("Signature file (latest): %s" % files[-1])
        output = bb.siggen.compare_sigfiles(files[-2], files[-1], recursecb, color=color)

else: if options.sigargs: logger.error('-s/--signature can only be used together with -t/--task') sys.exit(1) try: if not options.dump and options.sigdatafile1 and options.sigdatafile2: with bb.tinfoil.Tinfoil() as tinfoil: tinfoil.prepare(config_only=True) output = bb.siggen.compare_sigfiles(options.sigdatafile1, options.sigdatafile2, recursecb, color=color) elif options.sigdatafile1: output = bb.siggen.dump_sigfile(options.sigdatafile1) else: logger.error('Must specify signature file(s) or -t/--task') parser.print_help() sys.exit(1) except IOError as e: logger.error(str(e)) sys.exit(1) except (pickle.UnpicklingError, EOFError): logger.error('Invalid signature data - ensure you are specifying sigdata/siginfo files') sys.exit(1)

if output: print('\n'.join(output))