| # |
| # SPDX-License-Identifier: GPL-2.0-only |
| # |
| import bb.siggen |
| import bb.runqueue |
| import oe |
| |
| def sstate_rundepfilter(siggen, fn, recipename, task, dep, depname, dataCaches): |
| # Return True if we should keep the dependency, False to drop it |
| def isNative(x): |
| return x.endswith("-native") |
| def isCross(x): |
| return "-cross-" in x |
| def isNativeSDK(x): |
| return x.startswith("nativesdk-") |
| def isKernel(mc, fn): |
| inherits = " ".join(dataCaches[mc].inherits[fn]) |
| return inherits.find("/module-base.bbclass") != -1 or inherits.find("/linux-kernel-base.bbclass") != -1 |
| def isPackageGroup(mc, fn): |
| inherits = " ".join(dataCaches[mc].inherits[fn]) |
| return "/packagegroup.bbclass" in inherits |
| def isAllArch(mc, fn): |
| inherits = " ".join(dataCaches[mc].inherits[fn]) |
| return "/allarch.bbclass" in inherits |
| def isImage(mc, fn): |
| return "/image.bbclass" in " ".join(dataCaches[mc].inherits[fn]) |
| |
| depmc, _, deptaskname, depmcfn = bb.runqueue.split_tid_mcfn(dep) |
| mc, _ = bb.runqueue.split_mc(fn) |
| |
| # (Almost) always include our own inter-task dependencies (unless it comes |
| # from a mcdepends). The exception is the special |
| # do_kernel_configme->do_unpack_and_patch dependency from archiver.bbclass. |
| if recipename == depname and depmc == mc: |
| if task == "do_kernel_configme" and deptaskname == "do_unpack_and_patch": |
| return False |
| return True |
| |
| # Exclude well defined recipe->dependency |
| if "%s->%s" % (recipename, depname) in siggen.saferecipedeps: |
| return False |
| |
| # Check for special wildcard |
| if "*->%s" % depname in siggen.saferecipedeps and recipename != depname: |
| return False |
| |
| # Don't change native/cross/nativesdk recipe dependencies any further |
| if isNative(recipename) or isCross(recipename) or isNativeSDK(recipename): |
| return True |
| |
| # Only target packages beyond here |
| |
| # allarch packagegroups are assumed to have well behaved names which don't change between architecures/tunes |
| if isPackageGroup(mc, fn) and isAllArch(mc, fn) and not isNative(depname): |
| return False |
| |
| # Exclude well defined machine specific configurations which don't change ABI |
| if depname in siggen.abisaferecipes and not isImage(mc, fn): |
| return False |
| |
| # Kernel modules are well namespaced. We don't want to depend on the kernel's checksum |
| # if we're just doing an RRECOMMENDS_xxx = "kernel-module-*", not least because the checksum |
| # is machine specific. |
| # Therefore if we're not a kernel or a module recipe (inheriting the kernel classes) |
| # and we reccomend a kernel-module, we exclude the dependency. |
| if dataCaches and isKernel(depmc, depmcfn) and not isKernel(mc, fn): |
| for pkg in dataCaches[mc].runrecs[fn]: |
| if " ".join(dataCaches[mc].runrecs[fn][pkg]).find("kernel-module-") != -1: |
| return False |
| |
| # Default to keep dependencies |
| return True |
| |
| def sstate_lockedsigs(d): |
| sigs = {} |
| types = (d.getVar("SIGGEN_LOCKEDSIGS_TYPES") or "").split() |
| for t in types: |
| siggen_lockedsigs_var = "SIGGEN_LOCKEDSIGS_%s" % t |
| lockedsigs = (d.getVar(siggen_lockedsigs_var) or "").split() |
| for ls in lockedsigs: |
| pn, task, h = ls.split(":", 2) |
| if pn not in sigs: |
| sigs[pn] = {} |
| sigs[pn][task] = [h, siggen_lockedsigs_var] |
| return sigs |
| |
| class SignatureGeneratorOEBasic(bb.siggen.SignatureGeneratorBasic): |
| name = "OEBasic" |
| def init_rundepcheck(self, data): |
| self.abisaferecipes = (data.getVar("SIGGEN_EXCLUDERECIPES_ABISAFE") or "").split() |
| self.saferecipedeps = (data.getVar("SIGGEN_EXCLUDE_SAFE_RECIPE_DEPS") or "").split() |
| pass |
| def rundep_check(self, fn, recipename, task, dep, depname, dataCaches = None): |
| return sstate_rundepfilter(self, fn, recipename, task, dep, depname, dataCaches) |
| |
| class SignatureGeneratorOEBasicHashMixIn(object): |
| supports_multiconfig_datacaches = True |
| |
| def init_rundepcheck(self, data): |
| self.abisaferecipes = (data.getVar("SIGGEN_EXCLUDERECIPES_ABISAFE") or "").split() |
| self.saferecipedeps = (data.getVar("SIGGEN_EXCLUDE_SAFE_RECIPE_DEPS") or "").split() |
| self.lockedsigs = sstate_lockedsigs(data) |
| self.lockedhashes = {} |
| self.lockedpnmap = {} |
| self.lockedhashfn = {} |
| self.machine = data.getVar("MACHINE") |
| self.mismatch_msgs = [] |
| self.unlockedrecipes = (data.getVar("SIGGEN_UNLOCKED_RECIPES") or |
| "").split() |
| self.unlockedrecipes = { k: "" for k in self.unlockedrecipes } |
| self.buildarch = data.getVar('BUILD_ARCH') |
| self._internal = False |
| pass |
| |
| def tasks_resolved(self, virtmap, virtpnmap, dataCache): |
| # Translate virtual/xxx entries to PN values |
| newabisafe = [] |
| for a in self.abisaferecipes: |
| if a in virtpnmap: |
| newabisafe.append(virtpnmap[a]) |
| else: |
| newabisafe.append(a) |
| self.abisaferecipes = newabisafe |
| newsafedeps = [] |
| for a in self.saferecipedeps: |
| a1, a2 = a.split("->") |
| if a1 in virtpnmap: |
| a1 = virtpnmap[a1] |
| if a2 in virtpnmap: |
| a2 = virtpnmap[a2] |
| newsafedeps.append(a1 + "->" + a2) |
| self.saferecipedeps = newsafedeps |
| |
| def rundep_check(self, fn, recipename, task, dep, depname, dataCaches = None): |
| return sstate_rundepfilter(self, fn, recipename, task, dep, depname, dataCaches) |
| |
| def get_taskdata(self): |
| return (self.lockedpnmap, self.lockedhashfn, self.lockedhashes) + super().get_taskdata() |
| |
| def set_taskdata(self, data): |
| self.lockedpnmap, self.lockedhashfn, self.lockedhashes = data[:3] |
| super().set_taskdata(data[3:]) |
| |
| def dump_sigs(self, dataCache, options): |
| sigfile = os.getcwd() + "/locked-sigs.inc" |
| bb.plain("Writing locked sigs to %s" % sigfile) |
| self.dump_lockedsigs(sigfile) |
| return super(bb.siggen.SignatureGeneratorBasicHash, self).dump_sigs(dataCache, options) |
| |
| def prep_taskhash(self, tid, deps, dataCaches): |
| super().prep_taskhash(tid, deps, dataCaches) |
| if hasattr(self, "extramethod"): |
| (mc, _, _, fn) = bb.runqueue.split_tid_mcfn(tid) |
| inherits = " ".join(dataCaches[mc].inherits[fn]) |
| if inherits.find("/native.bbclass") != -1 or inherits.find("/cross.bbclass") != -1: |
| self.extramethod[tid] = ":" + self.buildarch |
| |
| def get_taskhash(self, tid, deps, dataCaches): |
| if tid in self.lockedhashes: |
| if self.lockedhashes[tid]: |
| return self.lockedhashes[tid] |
| else: |
| return super().get_taskhash(tid, deps, dataCaches) |
| |
| h = super().get_taskhash(tid, deps, dataCaches) |
| |
| (mc, _, task, fn) = bb.runqueue.split_tid_mcfn(tid) |
| |
| recipename = dataCaches[mc].pkg_fn[fn] |
| self.lockedpnmap[fn] = recipename |
| self.lockedhashfn[fn] = dataCaches[mc].hashfn[fn] |
| |
| unlocked = False |
| if recipename in self.unlockedrecipes: |
| unlocked = True |
| else: |
| def recipename_from_dep(dep): |
| (depmc, _, _, depfn) = bb.runqueue.split_tid_mcfn(dep) |
| return dataCaches[depmc].pkg_fn[depfn] |
| |
| # If any unlocked recipe is in the direct dependencies then the |
| # current recipe should be unlocked as well. |
| depnames = [ recipename_from_dep(x) for x in deps if mc == bb.runqueue.mc_from_tid(x)] |
| if any(x in y for y in depnames for x in self.unlockedrecipes): |
| self.unlockedrecipes[recipename] = '' |
| unlocked = True |
| |
| if not unlocked and recipename in self.lockedsigs: |
| if task in self.lockedsigs[recipename]: |
| h_locked = self.lockedsigs[recipename][task][0] |
| var = self.lockedsigs[recipename][task][1] |
| self.lockedhashes[tid] = h_locked |
| self._internal = True |
| unihash = self.get_unihash(tid) |
| self._internal = False |
| #bb.warn("Using %s %s %s" % (recipename, task, h)) |
| |
| if h != h_locked and h_locked != unihash: |
| self.mismatch_msgs.append('The %s:%s sig is computed to be %s, but the sig is locked to %s in %s' |
| % (recipename, task, h, h_locked, var)) |
| |
| return h_locked |
| |
| self.lockedhashes[tid] = False |
| #bb.warn("%s %s %s" % (recipename, task, h)) |
| return h |
| |
| def get_stampfile_hash(self, tid): |
| if tid in self.lockedhashes and self.lockedhashes[tid]: |
| return self.lockedhashes[tid] |
| return super().get_stampfile_hash(tid) |
| |
| def get_unihash(self, tid): |
| if tid in self.lockedhashes and self.lockedhashes[tid] and not self._internal: |
| return self.lockedhashes[tid] |
| return super().get_unihash(tid) |
| |
| def dump_sigtask(self, fn, task, stampbase, runtime): |
| tid = fn + ":" + task |
| if tid in self.lockedhashes and self.lockedhashes[tid]: |
| return |
| super(bb.siggen.SignatureGeneratorBasicHash, self).dump_sigtask(fn, task, stampbase, runtime) |
| |
| def dump_lockedsigs(self, sigfile, taskfilter=None): |
| types = {} |
| for tid in self.runtaskdeps: |
| if taskfilter: |
| if not tid in taskfilter: |
| continue |
| fn = bb.runqueue.fn_from_tid(tid) |
| t = self.lockedhashfn[fn].split(" ")[1].split(":")[5] |
| t = 't-' + t.replace('_', '-') |
| if t not in types: |
| types[t] = [] |
| types[t].append(tid) |
| |
| with open(sigfile, "w") as f: |
| l = sorted(types) |
| for t in l: |
| f.write('SIGGEN_LOCKEDSIGS_%s = "\\\n' % t) |
| types[t].sort() |
| sortedtid = sorted(types[t], key=lambda tid: self.lockedpnmap[bb.runqueue.fn_from_tid(tid)]) |
| for tid in sortedtid: |
| (_, _, task, fn) = bb.runqueue.split_tid_mcfn(tid) |
| if tid not in self.taskhash: |
| continue |
| f.write(" " + self.lockedpnmap[fn] + ":" + task + ":" + self.get_unihash(tid) + " \\\n") |
| f.write(' "\n') |
| f.write('SIGGEN_LOCKEDSIGS_TYPES_%s = "%s"' % (self.machine, " ".join(l))) |
| |
| def dump_siglist(self, sigfile): |
| with open(sigfile, "w") as f: |
| tasks = [] |
| for taskitem in self.taskhash: |
| (fn, task) = taskitem.rsplit(":", 1) |
| pn = self.lockedpnmap[fn] |
| tasks.append((pn, task, fn, self.taskhash[taskitem])) |
| for (pn, task, fn, taskhash) in sorted(tasks): |
| f.write('%s:%s %s %s\n' % (pn, task, fn, taskhash)) |
| |
| def checkhashes(self, sq_data, missed, found, d): |
| warn_msgs = [] |
| error_msgs = [] |
| sstate_missing_msgs = [] |
| |
| for tid in sq_data['hash']: |
| if tid not in found: |
| for pn in self.lockedsigs: |
| taskname = bb.runqueue.taskname_from_tid(tid) |
| if sq_data['hash'][tid] in iter(self.lockedsigs[pn].values()): |
| if taskname == 'do_shared_workdir': |
| continue |
| sstate_missing_msgs.append("Locked sig is set for %s:%s (%s) yet not in sstate cache?" |
| % (pn, taskname, sq_data['hash'][tid])) |
| |
| checklevel = d.getVar("SIGGEN_LOCKEDSIGS_TASKSIG_CHECK") |
| if checklevel == 'warn': |
| warn_msgs += self.mismatch_msgs |
| elif checklevel == 'error': |
| error_msgs += self.mismatch_msgs |
| |
| checklevel = d.getVar("SIGGEN_LOCKEDSIGS_SSTATE_EXISTS_CHECK") |
| if checklevel == 'warn': |
| warn_msgs += sstate_missing_msgs |
| elif checklevel == 'error': |
| error_msgs += sstate_missing_msgs |
| |
| if warn_msgs: |
| bb.warn("\n".join(warn_msgs)) |
| if error_msgs: |
| bb.fatal("\n".join(error_msgs)) |
| |
| class SignatureGeneratorOEBasicHash(SignatureGeneratorOEBasicHashMixIn, bb.siggen.SignatureGeneratorBasicHash): |
| name = "OEBasicHash" |
| |
| class SignatureGeneratorOEEquivHash(SignatureGeneratorOEBasicHashMixIn, bb.siggen.SignatureGeneratorUniHashMixIn, bb.siggen.SignatureGeneratorBasicHash): |
| name = "OEEquivHash" |
| |
| def init_rundepcheck(self, data): |
| super().init_rundepcheck(data) |
| self.server = data.getVar('BB_HASHSERVE') |
| if not self.server: |
| bb.fatal("OEEquivHash requires BB_HASHSERVE to be set") |
| self.method = data.getVar('SSTATE_HASHEQUIV_METHOD') |
| if not self.method: |
| bb.fatal("OEEquivHash requires SSTATE_HASHEQUIV_METHOD to be set") |
| |
| # Insert these classes into siggen's namespace so it can see and select them |
| bb.siggen.SignatureGeneratorOEBasic = SignatureGeneratorOEBasic |
| bb.siggen.SignatureGeneratorOEBasicHash = SignatureGeneratorOEBasicHash |
| bb.siggen.SignatureGeneratorOEEquivHash = SignatureGeneratorOEEquivHash |
| |
| |
| def find_siginfo(pn, taskname, taskhashlist, d): |
| """ Find signature data files for comparison purposes """ |
| |
| import fnmatch |
| import glob |
| |
| if not taskname: |
| # We have to derive pn and taskname |
| key = pn |
| splitit = key.split('.bb:') |
| taskname = splitit[1] |
| pn = os.path.basename(splitit[0]).split('_')[0] |
| if key.startswith('virtual:native:'): |
| pn = pn + '-native' |
| |
| hashfiles = {} |
| filedates = {} |
| |
| def get_hashval(siginfo): |
| if siginfo.endswith('.siginfo'): |
| return siginfo.rpartition(':')[2].partition('_')[0] |
| else: |
| return siginfo.rpartition('.')[2] |
| |
| # First search in stamps dir |
| localdata = d.createCopy() |
| localdata.setVar('MULTIMACH_TARGET_SYS', '*') |
| localdata.setVar('PN', pn) |
| localdata.setVar('PV', '*') |
| localdata.setVar('PR', '*') |
| localdata.setVar('EXTENDPE', '') |
| stamp = localdata.getVar('STAMP') |
| if pn.startswith("gcc-source"): |
| # gcc-source shared workdir is a special case :( |
| stamp = localdata.expand("${STAMPS_DIR}/work-shared/gcc-${PV}-${PR}") |
| |
| filespec = '%s.%s.sigdata.*' % (stamp, taskname) |
| foundall = False |
| import glob |
| for fullpath in glob.glob(filespec): |
| match = False |
| if taskhashlist: |
| for taskhash in taskhashlist: |
| if fullpath.endswith('.%s' % taskhash): |
| hashfiles[taskhash] = fullpath |
| if len(hashfiles) == len(taskhashlist): |
| foundall = True |
| break |
| else: |
| try: |
| filedates[fullpath] = os.stat(fullpath).st_mtime |
| except OSError: |
| continue |
| hashval = get_hashval(fullpath) |
| hashfiles[hashval] = fullpath |
| |
| if not taskhashlist or (len(filedates) < 2 and not foundall): |
| # That didn't work, look in sstate-cache |
| hashes = taskhashlist or ['?' * 64] |
| localdata = bb.data.createCopy(d) |
| for hashval in hashes: |
| localdata.setVar('PACKAGE_ARCH', '*') |
| localdata.setVar('TARGET_VENDOR', '*') |
| localdata.setVar('TARGET_OS', '*') |
| localdata.setVar('PN', pn) |
| localdata.setVar('PV', '*') |
| localdata.setVar('PR', '*') |
| localdata.setVar('BB_TASKHASH', hashval) |
| swspec = localdata.getVar('SSTATE_SWSPEC') |
| if taskname in ['do_fetch', 'do_unpack', 'do_patch', 'do_populate_lic', 'do_preconfigure'] and swspec: |
| localdata.setVar('SSTATE_PKGSPEC', '${SSTATE_SWSPEC}') |
| elif pn.endswith('-native') or "-cross-" in pn or "-crosssdk-" in pn: |
| localdata.setVar('SSTATE_EXTRAPATH', "${NATIVELSBSTRING}/") |
| sstatename = taskname[3:] |
| filespec = '%s_%s.*.siginfo' % (localdata.getVar('SSTATE_PKG'), sstatename) |
| |
| matchedfiles = glob.glob(filespec) |
| for fullpath in matchedfiles: |
| actual_hashval = get_hashval(fullpath) |
| if actual_hashval in hashfiles: |
| continue |
| hashfiles[hashval] = fullpath |
| if not taskhashlist: |
| try: |
| filedates[fullpath] = os.stat(fullpath).st_mtime |
| except: |
| continue |
| |
| if taskhashlist: |
| return hashfiles |
| else: |
| return filedates |
| |
| bb.siggen.find_siginfo = find_siginfo |
| |
| |
| def sstate_get_manifest_filename(task, d): |
| """ |
| Return the sstate manifest file path for a particular task. |
| Also returns the datastore that can be used to query related variables. |
| """ |
| d2 = d.createCopy() |
| extrainf = d.getVarFlag("do_" + task, 'stamp-extra-info') |
| if extrainf: |
| d2.setVar("SSTATE_MANMACH", extrainf) |
| return (d2.expand("${SSTATE_MANFILEPREFIX}.%s" % task), d2) |
| |
| def find_sstate_manifest(taskdata, taskdata2, taskname, d, multilibcache): |
| d2 = d |
| variant = '' |
| curr_variant = '' |
| if d.getVar("BBEXTENDCURR") == "multilib": |
| curr_variant = d.getVar("BBEXTENDVARIANT") |
| if "virtclass-multilib" not in d.getVar("OVERRIDES"): |
| curr_variant = "invalid" |
| if taskdata2.startswith("virtual:multilib"): |
| variant = taskdata2.split(":")[2] |
| if curr_variant != variant: |
| if variant not in multilibcache: |
| multilibcache[variant] = oe.utils.get_multilib_datastore(variant, d) |
| d2 = multilibcache[variant] |
| |
| if taskdata.endswith("-native"): |
| pkgarchs = ["${BUILD_ARCH}", "${BUILD_ARCH}_${ORIGNATIVELSBSTRING}"] |
| elif taskdata.startswith("nativesdk-"): |
| pkgarchs = ["${SDK_ARCH}_${SDK_OS}", "allarch"] |
| elif "-cross-canadian" in taskdata: |
| pkgarchs = ["${SDK_ARCH}_${SDK_ARCH}-${SDKPKGSUFFIX}"] |
| elif "-cross-" in taskdata: |
| pkgarchs = ["${BUILD_ARCH}_${TARGET_ARCH}"] |
| elif "-crosssdk" in taskdata: |
| pkgarchs = ["${BUILD_ARCH}_${SDK_ARCH}_${SDK_OS}"] |
| else: |
| pkgarchs = ['${MACHINE_ARCH}'] |
| pkgarchs = pkgarchs + list(reversed(d2.getVar("PACKAGE_EXTRA_ARCHS").split())) |
| pkgarchs.append('allarch') |
| pkgarchs.append('${SDK_ARCH}_${SDK_ARCH}-${SDKPKGSUFFIX}') |
| |
| for pkgarch in pkgarchs: |
| manifest = d2.expand("${SSTATE_MANIFESTS}/manifest-%s-%s.%s" % (pkgarch, taskdata, taskname)) |
| if os.path.exists(manifest): |
| return manifest, d2 |
| bb.warn("Manifest %s not found in %s (variant '%s')?" % (manifest, d2.expand(" ".join(pkgarchs)), variant)) |
| return None, d2 |
| |
| def OEOuthashBasic(path, sigfile, task, d): |
| """ |
| Basic output hash function |
| |
| Calculates the output hash of a task by hashing all output file metadata, |
| and file contents. |
| """ |
| import hashlib |
| import stat |
| import pwd |
| import grp |
| |
| def update_hash(s): |
| s = s.encode('utf-8') |
| h.update(s) |
| if sigfile: |
| sigfile.write(s) |
| |
| h = hashlib.sha256() |
| prev_dir = os.getcwd() |
| include_owners = os.environ.get('PSEUDO_DISABLED') == '0' |
| if "package_write_" in task or task == "package_qa": |
| include_owners = False |
| include_timestamps = False |
| if task == "package": |
| include_timestamps = d.getVar('BUILD_REPRODUCIBLE_BINARIES') == '1' |
| extra_content = d.getVar('HASHEQUIV_HASH_VERSION') |
| |
| try: |
| os.chdir(path) |
| |
| update_hash("OEOuthashBasic\n") |
| if extra_content: |
| update_hash(extra_content + "\n") |
| |
| # It is only currently useful to get equivalent hashes for things that |
| # can be restored from sstate. Since the sstate object is named using |
| # SSTATE_PKGSPEC and the task name, those should be included in the |
| # output hash calculation. |
| update_hash("SSTATE_PKGSPEC=%s\n" % d.getVar('SSTATE_PKGSPEC')) |
| update_hash("task=%s\n" % task) |
| |
| for root, dirs, files in os.walk('.', topdown=True): |
| # Sort directories to ensure consistent ordering when recursing |
| dirs.sort() |
| files.sort() |
| |
| def process(path): |
| s = os.lstat(path) |
| |
| if stat.S_ISDIR(s.st_mode): |
| update_hash('d') |
| elif stat.S_ISCHR(s.st_mode): |
| update_hash('c') |
| elif stat.S_ISBLK(s.st_mode): |
| update_hash('b') |
| elif stat.S_ISSOCK(s.st_mode): |
| update_hash('s') |
| elif stat.S_ISLNK(s.st_mode): |
| update_hash('l') |
| elif stat.S_ISFIFO(s.st_mode): |
| update_hash('p') |
| else: |
| update_hash('-') |
| |
| def add_perm(mask, on, off='-'): |
| if mask & s.st_mode: |
| update_hash(on) |
| else: |
| update_hash(off) |
| |
| add_perm(stat.S_IRUSR, 'r') |
| add_perm(stat.S_IWUSR, 'w') |
| if stat.S_ISUID & s.st_mode: |
| add_perm(stat.S_IXUSR, 's', 'S') |
| else: |
| add_perm(stat.S_IXUSR, 'x') |
| |
| add_perm(stat.S_IRGRP, 'r') |
| add_perm(stat.S_IWGRP, 'w') |
| if stat.S_ISGID & s.st_mode: |
| add_perm(stat.S_IXGRP, 's', 'S') |
| else: |
| add_perm(stat.S_IXGRP, 'x') |
| |
| add_perm(stat.S_IROTH, 'r') |
| add_perm(stat.S_IWOTH, 'w') |
| if stat.S_ISVTX & s.st_mode: |
| update_hash('t') |
| else: |
| add_perm(stat.S_IXOTH, 'x') |
| |
| if include_owners: |
| try: |
| update_hash(" %10s" % pwd.getpwuid(s.st_uid).pw_name) |
| update_hash(" %10s" % grp.getgrgid(s.st_gid).gr_name) |
| except KeyError as e: |
| bb.warn("KeyError in %s" % path) |
| msg = ("KeyError: %s\nPath %s is owned by uid %d, gid %d, which doesn't match " |
| "any user/group on target. This may be due to host contamination." % (e, path, s.st_uid, s.st_gid)) |
| raise Exception(msg).with_traceback(e.__traceback__) |
| |
| if include_timestamps: |
| update_hash(" %10d" % s.st_mtime) |
| |
| update_hash(" ") |
| if stat.S_ISBLK(s.st_mode) or stat.S_ISCHR(s.st_mode): |
| update_hash("%9s" % ("%d.%d" % (os.major(s.st_rdev), os.minor(s.st_rdev)))) |
| else: |
| update_hash(" " * 9) |
| |
| update_hash(" ") |
| if stat.S_ISREG(s.st_mode): |
| update_hash("%10d" % s.st_size) |
| else: |
| update_hash(" " * 10) |
| |
| update_hash(" ") |
| fh = hashlib.sha256() |
| if stat.S_ISREG(s.st_mode): |
| # Hash file contents |
| with open(path, 'rb') as d: |
| for chunk in iter(lambda: d.read(4096), b""): |
| fh.update(chunk) |
| update_hash(fh.hexdigest()) |
| else: |
| update_hash(" " * len(fh.hexdigest())) |
| |
| update_hash(" %s" % path) |
| |
| if stat.S_ISLNK(s.st_mode): |
| update_hash(" -> %s" % os.readlink(path)) |
| |
| update_hash("\n") |
| |
| # Process this directory and all its child files |
| process(root) |
| for f in files: |
| if f == 'fixmepath': |
| continue |
| process(os.path.join(root, f)) |
| finally: |
| os.chdir(prev_dir) |
| |
| return h.hexdigest() |
| |
| |