| # |
| # SPDX-License-Identifier: GPL-2.0-only |
| # |
| |
| import hashlib |
| import logging |
| import os |
| import re |
| import tempfile |
| import pickle |
| import bb.data |
| import difflib |
| import simplediff |
| from bb.checksum import FileChecksumCache |
| from bb import runqueue |
| import hashserv |
| |
| logger = logging.getLogger('BitBake.SigGen') |
| |
| def init(d): |
| siggens = [obj for obj in globals().values() |
| if type(obj) is type and issubclass(obj, SignatureGenerator)] |
| |
| desired = d.getVar("BB_SIGNATURE_HANDLER") or "noop" |
| for sg in siggens: |
| if desired == sg.name: |
| return sg(d) |
| break |
| else: |
| logger.error("Invalid signature generator '%s', using default 'noop'\n" |
| "Available generators: %s", desired, |
| ', '.join(obj.name for obj in siggens)) |
| return SignatureGenerator(d) |
| |
| class SignatureGenerator(object): |
| """ |
| """ |
| name = "noop" |
| |
| def __init__(self, data): |
| self.basehash = {} |
| self.taskhash = {} |
| self.runtaskdeps = {} |
| self.file_checksum_values = {} |
| self.taints = {} |
| self.unitaskhashes = {} |
| |
| def finalise(self, fn, d, varient): |
| return |
| |
| def get_unihash(self, tid): |
| return self.taskhash[tid] |
| |
| def get_taskhash(self, tid, deps, dataCache): |
| self.taskhash[tid] = hashlib.sha256(tid.encode("utf-8")).hexdigest() |
| return self.taskhash[tid] |
| |
| def writeout_file_checksum_cache(self): |
| """Write/update the file checksum cache onto disk""" |
| return |
| |
| def stampfile(self, stampbase, file_name, taskname, extrainfo): |
| return ("%s.%s.%s" % (stampbase, taskname, extrainfo)).rstrip('.') |
| |
| def stampcleanmask(self, stampbase, file_name, taskname, extrainfo): |
| return ("%s.%s.%s" % (stampbase, taskname, extrainfo)).rstrip('.') |
| |
| def dump_sigtask(self, fn, task, stampbase, runtime): |
| return |
| |
| def invalidate_task(self, task, d, fn): |
| bb.build.del_stamp(task, d, fn) |
| |
| def dump_sigs(self, dataCache, options): |
| return |
| |
| def get_taskdata(self): |
| return (self.runtaskdeps, self.taskhash, self.file_checksum_values, self.taints, self.basehash, self.unitaskhashes) |
| |
| def set_taskdata(self, data): |
| self.runtaskdeps, self.taskhash, self.file_checksum_values, self.taints, self.basehash, self.unitaskhashes = data |
| |
| def reset(self, data): |
| self.__init__(data) |
| |
| def get_taskhashes(self): |
| return self.taskhash, self.unitaskhashes |
| |
| def set_taskhashes(self, hashes): |
| self.taskhash, self.unitaskhashes = hashes |
| |
| def save_unitaskhashes(self): |
| return |
| |
| def set_setscene_tasks(self, setscene_tasks): |
| return |
| |
| class SignatureGeneratorBasic(SignatureGenerator): |
| """ |
| """ |
| name = "basic" |
| |
| def __init__(self, data): |
| self.basehash = {} |
| self.taskhash = {} |
| self.taskdeps = {} |
| self.runtaskdeps = {} |
| self.file_checksum_values = {} |
| self.taints = {} |
| self.gendeps = {} |
| self.lookupcache = {} |
| self.setscenetasks = {} |
| self.basewhitelist = set((data.getVar("BB_HASHBASE_WHITELIST") or "").split()) |
| self.taskwhitelist = None |
| self.init_rundepcheck(data) |
| checksum_cache_file = data.getVar("BB_HASH_CHECKSUM_CACHE_FILE") |
| if checksum_cache_file: |
| self.checksum_cache = FileChecksumCache() |
| self.checksum_cache.init_cache(data, checksum_cache_file) |
| else: |
| self.checksum_cache = None |
| |
| self.unihash_cache = bb.cache.SimpleCache("1") |
| self.unitaskhashes = self.unihash_cache.init_cache(data, "bb_unihashes.dat", {}) |
| |
| def init_rundepcheck(self, data): |
| self.taskwhitelist = data.getVar("BB_HASHTASK_WHITELIST") or None |
| if self.taskwhitelist: |
| self.twl = re.compile(self.taskwhitelist) |
| else: |
| self.twl = None |
| |
| def _build_data(self, fn, d): |
| |
| ignore_mismatch = ((d.getVar("BB_HASH_IGNORE_MISMATCH") or '') == '1') |
| tasklist, gendeps, lookupcache = bb.data.generate_dependencies(d) |
| |
| taskdeps, basehash = bb.data.generate_dependency_hash(tasklist, gendeps, lookupcache, self.basewhitelist, fn) |
| |
| for task in tasklist: |
| tid = fn + ":" + task |
| if not ignore_mismatch and tid in self.basehash and self.basehash[tid] != basehash[tid]: |
| bb.error("When reparsing %s, the basehash value changed from %s to %s. The metadata is not deterministic and this needs to be fixed." % (tid, self.basehash[tid], basehash[tid])) |
| bb.error("The following commands may help:") |
| cmd = "$ bitbake %s -c%s" % (d.getVar('PN'), task) |
| # Make sure sigdata is dumped before run printdiff |
| bb.error("%s -Snone" % cmd) |
| bb.error("Then:") |
| bb.error("%s -Sprintdiff\n" % cmd) |
| self.basehash[tid] = basehash[tid] |
| |
| self.taskdeps[fn] = taskdeps |
| self.gendeps[fn] = gendeps |
| self.lookupcache[fn] = lookupcache |
| |
| return taskdeps |
| |
| def set_setscene_tasks(self, setscene_tasks): |
| self.setscenetasks = setscene_tasks |
| |
| def finalise(self, fn, d, variant): |
| |
| mc = d.getVar("__BBMULTICONFIG", False) or "" |
| if variant or mc: |
| fn = bb.cache.realfn2virtual(fn, variant, mc) |
| |
| try: |
| taskdeps = self._build_data(fn, d) |
| except bb.parse.SkipRecipe: |
| raise |
| except: |
| bb.warn("Error during finalise of %s" % fn) |
| raise |
| |
| #Slow but can be useful for debugging mismatched basehashes |
| #for task in self.taskdeps[fn]: |
| # self.dump_sigtask(fn, task, d.getVar("STAMP"), False) |
| |
| for task in taskdeps: |
| d.setVar("BB_BASEHASH_task-%s" % task, self.basehash[fn + ":" + task]) |
| |
| def rundep_check(self, fn, recipename, task, dep, depname, dataCache): |
| # Return True if we should keep the dependency, False to drop it |
| # We only manipulate the dependencies for packages not in the whitelist |
| if self.twl and not self.twl.search(recipename): |
| # then process the actual dependencies |
| if self.twl.search(depname): |
| return False |
| return True |
| |
| def read_taint(self, fn, task, stampbase): |
| taint = None |
| try: |
| with open(stampbase + '.' + task + '.taint', 'r') as taintf: |
| taint = taintf.read() |
| except IOError: |
| pass |
| return taint |
| |
| def get_taskhash(self, tid, deps, dataCache): |
| |
| (mc, _, task, fn) = bb.runqueue.split_tid_mcfn(tid) |
| |
| data = dataCache.basetaskhash[tid] |
| self.basehash[tid] = data |
| self.runtaskdeps[tid] = [] |
| self.file_checksum_values[tid] = [] |
| recipename = dataCache.pkg_fn[fn] |
| for dep in sorted(deps, key=clean_basepath): |
| (depmc, _, deptaskname, depfn) = bb.runqueue.split_tid_mcfn(dep) |
| if mc != depmc: |
| continue |
| depname = dataCache.pkg_fn[depfn] |
| if not self.rundep_check(fn, recipename, task, dep, depname, dataCache): |
| continue |
| if dep not in self.taskhash: |
| bb.fatal("%s is not in taskhash, caller isn't calling in dependency order?" % dep) |
| data = data + self.get_unihash(dep) |
| self.runtaskdeps[tid].append(dep) |
| |
| if task in dataCache.file_checksums[fn]: |
| if self.checksum_cache: |
| checksums = self.checksum_cache.get_checksums(dataCache.file_checksums[fn][task], recipename) |
| else: |
| checksums = bb.fetch2.get_file_checksums(dataCache.file_checksums[fn][task], recipename) |
| for (f,cs) in checksums: |
| self.file_checksum_values[tid].append((f,cs)) |
| if cs: |
| data = data + cs |
| |
| taskdep = dataCache.task_deps[fn] |
| if 'nostamp' in taskdep and task in taskdep['nostamp']: |
| # Nostamp tasks need an implicit taint so that they force any dependent tasks to run |
| import uuid |
| taint = str(uuid.uuid4()) |
| data = data + taint |
| self.taints[tid] = "nostamp:" + taint |
| |
| taint = self.read_taint(fn, task, dataCache.stamp[fn]) |
| if taint: |
| data = data + taint |
| self.taints[tid] = taint |
| logger.warning("%s is tainted from a forced run" % tid) |
| |
| h = hashlib.sha256(data.encode("utf-8")).hexdigest() |
| self.taskhash[tid] = h |
| #d.setVar("BB_TASKHASH_task-%s" % task, taskhash[task]) |
| return h |
| |
| def writeout_file_checksum_cache(self): |
| """Write/update the file checksum cache onto disk""" |
| if self.checksum_cache: |
| self.checksum_cache.save_extras() |
| self.checksum_cache.save_merge() |
| else: |
| bb.fetch2.fetcher_parse_save() |
| bb.fetch2.fetcher_parse_done() |
| |
| def save_unitaskhashes(self): |
| self.unihash_cache.save(self.unitaskhashes) |
| |
| def dump_sigtask(self, fn, task, stampbase, runtime): |
| |
| tid = fn + ":" + task |
| referencestamp = stampbase |
| if isinstance(runtime, str) and runtime.startswith("customfile"): |
| sigfile = stampbase |
| referencestamp = runtime[11:] |
| elif runtime and tid in self.taskhash: |
| sigfile = stampbase + "." + task + ".sigdata" + "." + self.taskhash[tid] |
| else: |
| sigfile = stampbase + "." + task + ".sigbasedata" + "." + self.basehash[tid] |
| |
| bb.utils.mkdirhier(os.path.dirname(sigfile)) |
| |
| data = {} |
| data['task'] = task |
| data['basewhitelist'] = self.basewhitelist |
| data['taskwhitelist'] = self.taskwhitelist |
| data['taskdeps'] = self.taskdeps[fn][task] |
| data['basehash'] = self.basehash[tid] |
| data['gendeps'] = {} |
| data['varvals'] = {} |
| data['varvals'][task] = self.lookupcache[fn][task] |
| for dep in self.taskdeps[fn][task]: |
| if dep in self.basewhitelist: |
| continue |
| data['gendeps'][dep] = self.gendeps[fn][dep] |
| data['varvals'][dep] = self.lookupcache[fn][dep] |
| |
| if runtime and tid in self.taskhash: |
| data['runtaskdeps'] = self.runtaskdeps[tid] |
| data['file_checksum_values'] = [(os.path.basename(f), cs) for f,cs in self.file_checksum_values[tid]] |
| data['runtaskhashes'] = {} |
| for dep in data['runtaskdeps']: |
| data['runtaskhashes'][dep] = self.get_unihash(dep) |
| data['taskhash'] = self.taskhash[tid] |
| |
| taint = self.read_taint(fn, task, referencestamp) |
| if taint: |
| data['taint'] = taint |
| |
| if runtime and tid in self.taints: |
| if 'nostamp:' in self.taints[tid]: |
| data['taint'] = self.taints[tid] |
| |
| computed_basehash = calc_basehash(data) |
| if computed_basehash != self.basehash[tid]: |
| bb.error("Basehash mismatch %s versus %s for %s" % (computed_basehash, self.basehash[tid], tid)) |
| if runtime and tid in self.taskhash: |
| computed_taskhash = calc_taskhash(data) |
| if computed_taskhash != self.taskhash[tid]: |
| bb.error("Taskhash mismatch %s versus %s for %s" % (computed_taskhash, self.taskhash[tid], tid)) |
| sigfile = sigfile.replace(self.taskhash[tid], computed_taskhash) |
| |
| fd, tmpfile = tempfile.mkstemp(dir=os.path.dirname(sigfile), prefix="sigtask.") |
| try: |
| with os.fdopen(fd, "wb") as stream: |
| p = pickle.dump(data, stream, -1) |
| stream.flush() |
| os.chmod(tmpfile, 0o664) |
| os.rename(tmpfile, sigfile) |
| except (OSError, IOError) as err: |
| try: |
| os.unlink(tmpfile) |
| except OSError: |
| pass |
| raise err |
| |
| def dump_sigfn(self, fn, dataCaches, options): |
| if fn in self.taskdeps: |
| for task in self.taskdeps[fn]: |
| tid = fn + ":" + task |
| mc = bb.runqueue.mc_from_tid(tid) |
| if tid not in self.taskhash: |
| continue |
| if dataCaches[mc].basetaskhash[tid] != self.basehash[tid]: |
| bb.error("Bitbake's cached basehash does not match the one we just generated (%s)!" % tid) |
| bb.error("The mismatched hashes were %s and %s" % (dataCaches[mc].basetaskhash[tid], self.basehash[tid])) |
| self.dump_sigtask(fn, task, dataCaches[mc].stamp[fn], True) |
| |
| class SignatureGeneratorBasicHash(SignatureGeneratorBasic): |
| name = "basichash" |
| |
| def get_stampfile_hash(self, tid): |
| if tid in self.taskhash: |
| return self.taskhash[tid] |
| |
| # If task is not in basehash, then error |
| return self.basehash[tid] |
| |
| def stampfile(self, stampbase, fn, taskname, extrainfo, clean=False): |
| if taskname != "do_setscene" and taskname.endswith("_setscene"): |
| tid = fn + ":" + taskname[:-9] |
| else: |
| tid = fn + ":" + taskname |
| if clean: |
| h = "*" |
| else: |
| h = self.get_stampfile_hash(tid) |
| |
| return ("%s.%s.%s.%s" % (stampbase, taskname, h, extrainfo)).rstrip('.') |
| |
| def stampcleanmask(self, stampbase, fn, taskname, extrainfo): |
| return self.stampfile(stampbase, fn, taskname, extrainfo, clean=True) |
| |
| def invalidate_task(self, task, d, fn): |
| bb.note("Tainting hash to force rebuild of task %s, %s" % (fn, task)) |
| bb.build.write_taint(task, d, fn) |
| |
| class SignatureGeneratorUniHashMixIn(object): |
| def get_taskdata(self): |
| return (self.server, self.method) + super().get_taskdata() |
| |
| def set_taskdata(self, data): |
| self.server, self.method = data[:2] |
| super().set_taskdata(data[2:]) |
| |
| def client(self): |
| if getattr(self, '_client', None) is None: |
| self._client = hashserv.create_client(self.server) |
| return self._client |
| |
| def __get_task_unihash_key(self, tid): |
| # TODO: The key only *needs* to be the taskhash, the tid is just |
| # convenient |
| return '%s:%s' % (tid, self.taskhash[tid]) |
| |
| def get_stampfile_hash(self, tid): |
| if tid in self.taskhash: |
| # If a unique hash is reported, use it as the stampfile hash. This |
| # ensures that if a task won't be re-run if the taskhash changes, |
| # but it would result in the same output hash |
| unihash = self.unitaskhashes.get(self.__get_task_unihash_key(tid), None) |
| if unihash is not None: |
| return unihash |
| |
| return super().get_stampfile_hash(tid) |
| |
| def set_unihash(self, tid, unihash): |
| self.unitaskhashes[self.__get_task_unihash_key(tid)] = unihash |
| |
| def get_unihash(self, tid): |
| taskhash = self.taskhash[tid] |
| |
| # If its not a setscene task we can return |
| if self.setscenetasks and tid not in self.setscenetasks: |
| return taskhash |
| |
| key = self.__get_task_unihash_key(tid) |
| |
| # TODO: This cache can grow unbounded. It probably only needs to keep |
| # for each task |
| unihash = self.unitaskhashes.get(key, None) |
| if unihash is not None: |
| return unihash |
| |
| # In the absence of being able to discover a unique hash from the |
| # server, make it be equivalent to the taskhash. The unique "hash" only |
| # really needs to be a unique string (not even necessarily a hash), but |
| # making it match the taskhash has a few advantages: |
| # |
| # 1) All of the sstate code that assumes hashes can be the same |
| # 2) It provides maximal compatibility with builders that don't use |
| # an equivalency server |
| # 3) The value is easy for multiple independent builders to derive the |
| # same unique hash from the same input. This means that if the |
| # independent builders find the same taskhash, but it isn't reported |
| # to the server, there is a better chance that they will agree on |
| # the unique hash. |
| unihash = taskhash |
| |
| try: |
| data = self.client().get_unihash(self.method, self.taskhash[tid]) |
| if data: |
| unihash = data |
| # A unique hash equal to the taskhash is not very interesting, |
| # so it is reported it at debug level 2. If they differ, that |
| # is much more interesting, so it is reported at debug level 1 |
| bb.debug((1, 2)[unihash == taskhash], 'Found unihash %s in place of %s for %s from %s' % (unihash, taskhash, tid, self.server)) |
| else: |
| bb.debug(2, 'No reported unihash for %s:%s from %s' % (tid, taskhash, self.server)) |
| except hashserv.HashConnectionError as e: |
| bb.warn('Error contacting Hash Equivalence Server %s: %s' % (self.server, str(e))) |
| |
| self.unitaskhashes[key] = unihash |
| return unihash |
| |
| def report_unihash(self, path, task, d): |
| import importlib |
| |
| taskhash = d.getVar('BB_TASKHASH') |
| unihash = d.getVar('BB_UNIHASH') |
| report_taskdata = d.getVar('SSTATE_HASHEQUIV_REPORT_TASKDATA') == '1' |
| tempdir = d.getVar('T') |
| fn = d.getVar('BB_FILENAME') |
| key = fn + ':do_' + task + ':' + taskhash |
| |
| # Sanity checks |
| cache_unihash = self.unitaskhashes.get(key, None) |
| if cache_unihash is None: |
| bb.fatal('%s not in unihash cache. Please report this error' % key) |
| |
| if cache_unihash != unihash: |
| bb.fatal("Cache unihash %s doesn't match BB_UNIHASH %s" % (cache_unihash, unihash)) |
| |
| sigfile = None |
| sigfile_name = "depsig.do_%s.%d" % (task, os.getpid()) |
| sigfile_link = "depsig.do_%s" % task |
| |
| try: |
| sigfile = open(os.path.join(tempdir, sigfile_name), 'w+b') |
| |
| locs = {'path': path, 'sigfile': sigfile, 'task': task, 'd': d} |
| |
| if "." in self.method: |
| (module, method) = self.method.rsplit('.', 1) |
| locs['method'] = getattr(importlib.import_module(module), method) |
| outhash = bb.utils.better_eval('method(path, sigfile, task, d)', locs) |
| else: |
| outhash = bb.utils.better_eval(self.method + '(path, sigfile, task, d)', locs) |
| |
| try: |
| extra_data = {} |
| |
| owner = d.getVar('SSTATE_HASHEQUIV_OWNER') |
| if owner: |
| extra_data['owner'] = owner |
| |
| if report_taskdata: |
| sigfile.seek(0) |
| |
| extra_data['PN'] = d.getVar('PN') |
| extra_data['PV'] = d.getVar('PV') |
| extra_data['PR'] = d.getVar('PR') |
| extra_data['task'] = task |
| extra_data['outhash_siginfo'] = sigfile.read().decode('utf-8') |
| |
| data = self.client().report_unihash(taskhash, self.method, outhash, unihash, extra_data) |
| new_unihash = data['unihash'] |
| |
| if new_unihash != unihash: |
| bb.debug(1, 'Task %s unihash changed %s -> %s by server %s' % (taskhash, unihash, new_unihash, self.server)) |
| bb.event.fire(bb.runqueue.taskUniHashUpdate(fn + ':do_' + task, new_unihash), d) |
| else: |
| bb.debug(1, 'Reported task %s as unihash %s to %s' % (taskhash, unihash, self.server)) |
| except hashserv.HashConnectionError as e: |
| bb.warn('Error contacting Hash Equivalence Server %s: %s' % (self.server, str(e))) |
| finally: |
| if sigfile: |
| sigfile.close() |
| |
| sigfile_link_path = os.path.join(tempdir, sigfile_link) |
| bb.utils.remove(sigfile_link_path) |
| |
| try: |
| os.symlink(sigfile_name, sigfile_link_path) |
| except OSError: |
| pass |
| |
| |
| # |
| # Dummy class used for bitbake-selftest |
| # |
| class SignatureGeneratorTestEquivHash(SignatureGeneratorUniHashMixIn, SignatureGeneratorBasicHash): |
| name = "TestEquivHash" |
| def init_rundepcheck(self, data): |
| super().init_rundepcheck(data) |
| self.server = data.getVar('BB_HASHSERVE') |
| self.method = "sstate_output_hash" |
| |
| |
| def dump_this_task(outfile, d): |
| import bb.parse |
| fn = d.getVar("BB_FILENAME") |
| task = "do_" + d.getVar("BB_CURRENTTASK") |
| referencestamp = bb.build.stamp_internal(task, d, None, True) |
| bb.parse.siggen.dump_sigtask(fn, task, outfile, "customfile:" + referencestamp) |
| |
| def init_colors(enable_color): |
| """Initialise colour dict for passing to compare_sigfiles()""" |
| # First set up the colours |
| colors = {'color_title': '\033[1m', |
| 'color_default': '\033[0m', |
| 'color_add': '\033[0;32m', |
| 'color_remove': '\033[0;31m', |
| } |
| # Leave all keys present but clear the values |
| if not enable_color: |
| for k in colors.keys(): |
| colors[k] = '' |
| return colors |
| |
| def worddiff_str(oldstr, newstr, colors=None): |
| if not colors: |
| colors = init_colors(False) |
| diff = simplediff.diff(oldstr.split(' '), newstr.split(' ')) |
| ret = [] |
| for change, value in diff: |
| value = ' '.join(value) |
| if change == '=': |
| ret.append(value) |
| elif change == '+': |
| item = '{color_add}{{+{value}+}}{color_default}'.format(value=value, **colors) |
| ret.append(item) |
| elif change == '-': |
| item = '{color_remove}[-{value}-]{color_default}'.format(value=value, **colors) |
| ret.append(item) |
| whitespace_note = '' |
| if oldstr != newstr and ' '.join(oldstr.split()) == ' '.join(newstr.split()): |
| whitespace_note = ' (whitespace changed)' |
| return '"%s"%s' % (' '.join(ret), whitespace_note) |
| |
| def list_inline_diff(oldlist, newlist, colors=None): |
| if not colors: |
| colors = init_colors(False) |
| diff = simplediff.diff(oldlist, newlist) |
| ret = [] |
| for change, value in diff: |
| value = ' '.join(value) |
| if change == '=': |
| ret.append("'%s'" % value) |
| elif change == '+': |
| item = '{color_add}+{value}{color_default}'.format(value=value, **colors) |
| ret.append(item) |
| elif change == '-': |
| item = '{color_remove}-{value}{color_default}'.format(value=value, **colors) |
| ret.append(item) |
| return '[%s]' % (', '.join(ret)) |
| |
| def clean_basepath(a): |
| mc = None |
| if a.startswith("mc:"): |
| _, mc, a = a.split(":", 2) |
| b = a.rsplit("/", 2)[1] + '/' + a.rsplit("/", 2)[2] |
| if a.startswith("virtual:"): |
| b = b + ":" + a.rsplit(":", 1)[0] |
| if mc: |
| b = b + ":mc:" + mc |
| return b |
| |
| def clean_basepaths(a): |
| b = {} |
| for x in a: |
| b[clean_basepath(x)] = a[x] |
| return b |
| |
| def clean_basepaths_list(a): |
| b = [] |
| for x in a: |
| b.append(clean_basepath(x)) |
| return b |
| |
| def compare_sigfiles(a, b, recursecb=None, color=False, collapsed=False): |
| output = [] |
| |
| colors = init_colors(color) |
| def color_format(formatstr, **values): |
| """ |
| Return colour formatted string. |
| NOTE: call with the format string, not an already formatted string |
| containing values (otherwise you could have trouble with { and } |
| characters) |
| """ |
| if not formatstr.endswith('{color_default}'): |
| formatstr += '{color_default}' |
| # In newer python 3 versions you can pass both of these directly, |
| # but we only require 3.4 at the moment |
| formatparams = {} |
| formatparams.update(colors) |
| formatparams.update(values) |
| return formatstr.format(**formatparams) |
| |
| with open(a, 'rb') as f: |
| p1 = pickle.Unpickler(f) |
| a_data = p1.load() |
| with open(b, 'rb') as f: |
| p2 = pickle.Unpickler(f) |
| b_data = p2.load() |
| |
| def dict_diff(a, b, whitelist=set()): |
| sa = set(a.keys()) |
| sb = set(b.keys()) |
| common = sa & sb |
| changed = set() |
| for i in common: |
| if a[i] != b[i] and i not in whitelist: |
| changed.add(i) |
| added = sb - sa |
| removed = sa - sb |
| return changed, added, removed |
| |
| def file_checksums_diff(a, b): |
| from collections import Counter |
| # Handle old siginfo format |
| if isinstance(a, dict): |
| a = [(os.path.basename(f), cs) for f, cs in a.items()] |
| if isinstance(b, dict): |
| b = [(os.path.basename(f), cs) for f, cs in b.items()] |
| # Compare lists, ensuring we can handle duplicate filenames if they exist |
| removedcount = Counter(a) |
| removedcount.subtract(b) |
| addedcount = Counter(b) |
| addedcount.subtract(a) |
| added = [] |
| for x in b: |
| if addedcount[x] > 0: |
| addedcount[x] -= 1 |
| added.append(x) |
| removed = [] |
| changed = [] |
| for x in a: |
| if removedcount[x] > 0: |
| removedcount[x] -= 1 |
| for y in added: |
| if y[0] == x[0]: |
| changed.append((x[0], x[1], y[1])) |
| added.remove(y) |
| break |
| else: |
| removed.append(x) |
| added = [x[0] for x in added] |
| removed = [x[0] for x in removed] |
| return changed, added, removed |
| |
| if 'basewhitelist' in a_data and a_data['basewhitelist'] != b_data['basewhitelist']: |
| output.append(color_format("{color_title}basewhitelist changed{color_default} from '%s' to '%s'") % (a_data['basewhitelist'], b_data['basewhitelist'])) |
| if a_data['basewhitelist'] and b_data['basewhitelist']: |
| output.append("changed items: %s" % a_data['basewhitelist'].symmetric_difference(b_data['basewhitelist'])) |
| |
| if 'taskwhitelist' in a_data and a_data['taskwhitelist'] != b_data['taskwhitelist']: |
| output.append(color_format("{color_title}taskwhitelist changed{color_default} from '%s' to '%s'") % (a_data['taskwhitelist'], b_data['taskwhitelist'])) |
| if a_data['taskwhitelist'] and b_data['taskwhitelist']: |
| output.append("changed items: %s" % a_data['taskwhitelist'].symmetric_difference(b_data['taskwhitelist'])) |
| |
| if a_data['taskdeps'] != b_data['taskdeps']: |
| output.append(color_format("{color_title}Task dependencies changed{color_default} from:\n%s\nto:\n%s") % (sorted(a_data['taskdeps']), sorted(b_data['taskdeps']))) |
| |
| if a_data['basehash'] != b_data['basehash'] and not collapsed: |
| output.append(color_format("{color_title}basehash changed{color_default} from %s to %s") % (a_data['basehash'], b_data['basehash'])) |
| |
| changed, added, removed = dict_diff(a_data['gendeps'], b_data['gendeps'], a_data['basewhitelist'] & b_data['basewhitelist']) |
| if changed: |
| for dep in changed: |
| output.append(color_format("{color_title}List of dependencies for variable %s changed from '{color_default}%s{color_title}' to '{color_default}%s{color_title}'") % (dep, a_data['gendeps'][dep], b_data['gendeps'][dep])) |
| if a_data['gendeps'][dep] and b_data['gendeps'][dep]: |
| output.append("changed items: %s" % a_data['gendeps'][dep].symmetric_difference(b_data['gendeps'][dep])) |
| if added: |
| for dep in added: |
| output.append(color_format("{color_title}Dependency on variable %s was added") % (dep)) |
| if removed: |
| for dep in removed: |
| output.append(color_format("{color_title}Dependency on Variable %s was removed") % (dep)) |
| |
| |
| changed, added, removed = dict_diff(a_data['varvals'], b_data['varvals']) |
| if changed: |
| for dep in changed: |
| oldval = a_data['varvals'][dep] |
| newval = b_data['varvals'][dep] |
| if newval and oldval and ('\n' in oldval or '\n' in newval): |
| diff = difflib.unified_diff(oldval.splitlines(), newval.splitlines(), lineterm='') |
| # Cut off the first two lines, since we aren't interested in |
| # the old/new filename (they are blank anyway in this case) |
| difflines = list(diff)[2:] |
| if color: |
| # Add colour to diff output |
| for i, line in enumerate(difflines): |
| if line.startswith('+'): |
| line = color_format('{color_add}{line}', line=line) |
| difflines[i] = line |
| elif line.startswith('-'): |
| line = color_format('{color_remove}{line}', line=line) |
| difflines[i] = line |
| output.append(color_format("{color_title}Variable {var} value changed:{color_default}\n{diff}", var=dep, diff='\n'.join(difflines))) |
| elif newval and oldval and (' ' in oldval or ' ' in newval): |
| output.append(color_format("{color_title}Variable {var} value changed:{color_default}\n{diff}", var=dep, diff=worddiff_str(oldval, newval, colors))) |
| else: |
| output.append(color_format("{color_title}Variable {var} value changed from '{color_default}{oldval}{color_title}' to '{color_default}{newval}{color_title}'{color_default}", var=dep, oldval=oldval, newval=newval)) |
| |
| if not 'file_checksum_values' in a_data: |
| a_data['file_checksum_values'] = {} |
| if not 'file_checksum_values' in b_data: |
| b_data['file_checksum_values'] = {} |
| |
| changed, added, removed = file_checksums_diff(a_data['file_checksum_values'], b_data['file_checksum_values']) |
| if changed: |
| for f, old, new in changed: |
| output.append(color_format("{color_title}Checksum for file %s changed{color_default} from %s to %s") % (f, old, new)) |
| if added: |
| for f in added: |
| output.append(color_format("{color_title}Dependency on checksum of file %s was added") % (f)) |
| if removed: |
| for f in removed: |
| output.append(color_format("{color_title}Dependency on checksum of file %s was removed") % (f)) |
| |
| if not 'runtaskdeps' in a_data: |
| a_data['runtaskdeps'] = {} |
| if not 'runtaskdeps' in b_data: |
| b_data['runtaskdeps'] = {} |
| |
| if not collapsed: |
| if len(a_data['runtaskdeps']) != len(b_data['runtaskdeps']): |
| changed = ["Number of task dependencies changed"] |
| else: |
| changed = [] |
| for idx, task in enumerate(a_data['runtaskdeps']): |
| a = a_data['runtaskdeps'][idx] |
| b = b_data['runtaskdeps'][idx] |
| if a_data['runtaskhashes'][a] != b_data['runtaskhashes'][b] and not collapsed: |
| changed.append("%s with hash %s\n changed to\n%s with hash %s" % (clean_basepath(a), a_data['runtaskhashes'][a], clean_basepath(b), b_data['runtaskhashes'][b])) |
| |
| if changed: |
| clean_a = clean_basepaths_list(a_data['runtaskdeps']) |
| clean_b = clean_basepaths_list(b_data['runtaskdeps']) |
| if clean_a != clean_b: |
| output.append(color_format("{color_title}runtaskdeps changed:{color_default}\n%s") % list_inline_diff(clean_a, clean_b, colors)) |
| else: |
| output.append(color_format("{color_title}runtaskdeps changed:")) |
| output.append("\n".join(changed)) |
| |
| |
| if 'runtaskhashes' in a_data and 'runtaskhashes' in b_data: |
| a = a_data['runtaskhashes'] |
| b = b_data['runtaskhashes'] |
| changed, added, removed = dict_diff(a, b) |
| if added: |
| for dep in added: |
| bdep_found = False |
| if removed: |
| for bdep in removed: |
| if b[dep] == a[bdep]: |
| #output.append("Dependency on task %s was replaced by %s with same hash" % (dep, bdep)) |
| bdep_found = True |
| if not bdep_found: |
| output.append(color_format("{color_title}Dependency on task %s was added{color_default} with hash %s") % (clean_basepath(dep), b[dep])) |
| if removed: |
| for dep in removed: |
| adep_found = False |
| if added: |
| for adep in added: |
| if b[adep] == a[dep]: |
| #output.append("Dependency on task %s was replaced by %s with same hash" % (adep, dep)) |
| adep_found = True |
| if not adep_found: |
| output.append(color_format("{color_title}Dependency on task %s was removed{color_default} with hash %s") % (clean_basepath(dep), a[dep])) |
| if changed: |
| for dep in changed: |
| if not collapsed: |
| output.append(color_format("{color_title}Hash for dependent task %s changed{color_default} from %s to %s") % (clean_basepath(dep), a[dep], b[dep])) |
| if callable(recursecb): |
| recout = recursecb(dep, a[dep], b[dep]) |
| if recout: |
| if collapsed: |
| output.extend(recout) |
| else: |
| # If a dependent hash changed, might as well print the line above and then defer to the changes in |
| # that hash since in all likelyhood, they're the same changes this task also saw. |
| output = [output[-1]] + recout |
| |
| a_taint = a_data.get('taint', None) |
| b_taint = b_data.get('taint', None) |
| if a_taint != b_taint: |
| if a_taint and a_taint.startswith('nostamp:'): |
| a_taint = a_taint.replace('nostamp:', 'nostamp(uuid4):') |
| if b_taint and b_taint.startswith('nostamp:'): |
| b_taint = b_taint.replace('nostamp:', 'nostamp(uuid4):') |
| output.append(color_format("{color_title}Taint (by forced/invalidated task) changed{color_default} from %s to %s") % (a_taint, b_taint)) |
| |
| return output |
| |
| |
| def calc_basehash(sigdata): |
| task = sigdata['task'] |
| basedata = sigdata['varvals'][task] |
| |
| if basedata is None: |
| basedata = '' |
| |
| alldeps = sigdata['taskdeps'] |
| for dep in alldeps: |
| basedata = basedata + dep |
| val = sigdata['varvals'][dep] |
| if val is not None: |
| basedata = basedata + str(val) |
| |
| return hashlib.sha256(basedata.encode("utf-8")).hexdigest() |
| |
| def calc_taskhash(sigdata): |
| data = sigdata['basehash'] |
| |
| for dep in sigdata['runtaskdeps']: |
| data = data + sigdata['runtaskhashes'][dep] |
| |
| for c in sigdata['file_checksum_values']: |
| if c[1]: |
| data = data + c[1] |
| |
| if 'taint' in sigdata: |
| if 'nostamp:' in sigdata['taint']: |
| data = data + sigdata['taint'][8:] |
| else: |
| data = data + sigdata['taint'] |
| |
| return hashlib.sha256(data.encode("utf-8")).hexdigest() |
| |
| |
| def dump_sigfile(a): |
| output = [] |
| |
| with open(a, 'rb') as f: |
| p1 = pickle.Unpickler(f) |
| a_data = p1.load() |
| |
| output.append("basewhitelist: %s" % (a_data['basewhitelist'])) |
| |
| output.append("taskwhitelist: %s" % (a_data['taskwhitelist'])) |
| |
| output.append("Task dependencies: %s" % (sorted(a_data['taskdeps']))) |
| |
| output.append("basehash: %s" % (a_data['basehash'])) |
| |
| for dep in a_data['gendeps']: |
| output.append("List of dependencies for variable %s is %s" % (dep, a_data['gendeps'][dep])) |
| |
| for dep in a_data['varvals']: |
| output.append("Variable %s value is %s" % (dep, a_data['varvals'][dep])) |
| |
| if 'runtaskdeps' in a_data: |
| output.append("Tasks this task depends on: %s" % (a_data['runtaskdeps'])) |
| |
| if 'file_checksum_values' in a_data: |
| output.append("This task depends on the checksums of files: %s" % (a_data['file_checksum_values'])) |
| |
| if 'runtaskhashes' in a_data: |
| for dep in a_data['runtaskhashes']: |
| output.append("Hash for dependent task %s is %s" % (dep, a_data['runtaskhashes'][dep])) |
| |
| if 'taint' in a_data: |
| if a_data['taint'].startswith('nostamp:'): |
| msg = a_data['taint'].replace('nostamp:', 'nostamp(uuid4):') |
| else: |
| msg = a_data['taint'] |
| output.append("Tainted (by forced/invalidated task): %s" % msg) |
| |
| if 'task' in a_data: |
| computed_basehash = calc_basehash(a_data) |
| output.append("Computed base hash is %s and from file %s" % (computed_basehash, a_data['basehash'])) |
| else: |
| output.append("Unable to compute base hash") |
| |
| computed_taskhash = calc_taskhash(a_data) |
| output.append("Computed task hash is %s" % computed_taskhash) |
| |
| return output |