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- #
- # SPDX-License-Identifier: GPL-2.0-only
- #
- import bb.siggen
- import oe
- def sstate_rundepfilter(siggen, fn, recipename, task, dep, depname, dataCache):
- # 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(fn):
- inherits = " ".join(dataCache.inherits[fn])
- return inherits.find("/module-base.bbclass") != -1 or inherits.find("/linux-kernel-base.bbclass") != -1
- def isPackageGroup(fn):
- inherits = " ".join(dataCache.inherits[fn])
- return "/packagegroup.bbclass" in inherits
- def isAllArch(fn):
- inherits = " ".join(dataCache.inherits[fn])
- return "/allarch.bbclass" in inherits
- def isImage(fn):
- return "/image.bbclass" in " ".join(dataCache.inherits[fn])
- # (Almost) always include our own inter-task dependencies.
- # The exception is the special do_kernel_configme->do_unpack_and_patch
- # dependency from archiver.bbclass.
- if recipename == depname:
- if task == "do_kernel_configme" and dep.endswith(".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(fn) and isAllArch(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(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.
- depfn = dep.rsplit(".", 1)[0]
- if dataCache and isKernel(depfn) and not isKernel(fn):
- for pkg in dataCache.runrecs[fn]:
- if " ".join(dataCache.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, dataCache = None):
- return sstate_rundepfilter(self, fn, recipename, task, dep, depname, dataCache)
- class SignatureGeneratorOEBasicHash(bb.siggen.SignatureGeneratorBasicHash):
- name = "OEBasicHash"
- 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 }
- 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, dataCache = None):
- return sstate_rundepfilter(self, fn, recipename, task, dep, depname, dataCache)
- def get_taskdata(self):
- data = super(bb.siggen.SignatureGeneratorBasicHash, self).get_taskdata()
- return (data, self.lockedpnmap, self.lockedhashfn)
- def set_taskdata(self, data):
- coredata, self.lockedpnmap, self.lockedhashfn = data
- super(bb.siggen.SignatureGeneratorBasicHash, self).set_taskdata(coredata)
- 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 get_taskhash(self, fn, task, deps, dataCache):
- h = super(bb.siggen.SignatureGeneratorBasicHash, self).get_taskhash(fn, task, deps, dataCache)
- recipename = dataCache.pkg_fn[fn]
- self.lockedpnmap[fn] = recipename
- self.lockedhashfn[fn] = dataCache.hashfn[fn]
- unlocked = False
- if recipename in self.unlockedrecipes:
- unlocked = True
- else:
- def get_mc(tid):
- tid = tid.rsplit('.', 1)[0]
- if tid.startswith('multiconfig:'):
- elems = tid.split(':')
- return elems[1]
- def recipename_from_dep(dep):
- # The dep entry will look something like
- # /path/path/recipename.bb.task, virtual:native:/p/foo.bb.task,
- # ...
- fn = dep.rsplit('.', 1)[0]
- return dataCache.pkg_fn[fn]
- mc = get_mc(fn)
- # 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 == get_mc(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]:
- k = fn + "." + task
- h_locked = self.lockedsigs[recipename][task][0]
- var = self.lockedsigs[recipename][task][1]
- self.lockedhashes[k] = h_locked
- self.taskhash[k] = h_locked
- #bb.warn("Using %s %s %s" % (recipename, task, h))
- if h != h_locked:
- 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
- #bb.warn("%s %s %s" % (recipename, task, h))
- return h
- def dump_sigtask(self, fn, task, stampbase, runtime):
- k = fn + "." + task
- if k in self.lockedhashes:
- return
- super(bb.siggen.SignatureGeneratorBasicHash, self).dump_sigtask(fn, task, stampbase, runtime)
- def dump_lockedsigs(self, sigfile, taskfilter=None):
- types = {}
- for k in self.runtaskdeps:
- if taskfilter:
- if not k in taskfilter:
- continue
- fn = k.rsplit(".",1)[0]
- t = self.lockedhashfn[fn].split(" ")[1].split(":")[5]
- t = 't-' + t.replace('_', '-')
- if t not in types:
- types[t] = []
- types[t].append(k)
- with open(sigfile, "w") as f:
- l = sorted(types)
- for t in l:
- f.write('SIGGEN_LOCKEDSIGS_%s = "\\\n' % t)
- types[t].sort()
- sortedk = sorted(types[t], key=lambda k: self.lockedpnmap[k.rsplit(".",1)[0]])
- for k in sortedk:
- fn = k.rsplit(".",1)[0]
- task = k.rsplit(".",1)[1]
- if k not in self.taskhash:
- continue
- f.write(" " + self.lockedpnmap[fn] + ":" + task + ":" + self.taskhash[k] + " \\\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, missed, ret, sq_fn, sq_task, sq_hash, sq_hashfn, d):
- warn_msgs = []
- error_msgs = []
- sstate_missing_msgs = []
- for task in range(len(sq_fn)):
- if task not in ret:
- for pn in self.lockedsigs:
- if sq_hash[task] in iter(self.lockedsigs[pn].values()):
- if sq_task[task] == 'do_shared_workdir':
- continue
- sstate_missing_msgs.append("Locked sig is set for %s:%s (%s) yet not in sstate cache?"
- % (pn, sq_task[task], sq_hash[task]))
- 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 SignatureGeneratorOEEquivHash(SignatureGeneratorOEBasicHash):
- name = "OEEquivHash"
- def init_rundepcheck(self, data):
- super().init_rundepcheck(data)
- self.server = data.getVar('SSTATE_HASHEQUIV_SERVER')
- self.method = data.getVar('SSTATE_HASHEQUIV_METHOD')
- self.unihashes = bb.persist_data.persist('SSTATESIG_UNIHASH_CACHE_v1_' + self.method.replace('.', '_'), data)
- 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 __get_task_unihash_key(self, task):
- # TODO: The key only *needs* to be the taskhash, the task is just
- # convenient
- return '%s:%s' % (task, self.taskhash[task])
- def get_stampfile_hash(self, task):
- if task 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.unihashes.get(self.__get_task_unihash_key(task))
- if unihash is not None:
- return unihash
- return super().get_stampfile_hash(task)
- def get_unihash(self, task):
- import urllib
- import json
- taskhash = self.taskhash[task]
- key = self.__get_task_unihash_key(task)
- # TODO: This cache can grow unbounded. It probably only needs to keep
- # for each task
- unihash = self.unihashes.get(key)
- 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:
- url = '%s/v1/equivalent?%s' % (self.server,
- urllib.parse.urlencode({'method': self.method, 'taskhash': self.taskhash[task]}))
- request = urllib.request.Request(url)
- response = urllib.request.urlopen(request)
- data = response.read().decode('utf-8')
- json_data = json.loads(data)
- if json_data:
- unihash = json_data['unihash']
- # 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, task, self.server))
- else:
- bb.debug(2, 'No reported unihash for %s:%s from %s' % (task, taskhash, self.server))
- except urllib.error.URLError as e:
- bb.warn('Failure contacting Hash Equivalence Server %s: %s' % (self.server, str(e)))
- except (KeyError, json.JSONDecodeError) as e:
- bb.warn('Poorly formatted response from %s: %s' % (self.server, str(e)))
- self.unihashes[key] = unihash
- return unihash
- def report_unihash(self, path, task, d):
- import urllib
- import json
- import tempfile
- import base64
- 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.unihashes.get(key)
- 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}
- (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)
- try:
- url = '%s/v1/equivalent' % self.server
- task_data = {
- 'taskhash': taskhash,
- 'method': self.method,
- 'outhash': outhash,
- 'unihash': unihash,
- 'owner': d.getVar('SSTATE_HASHEQUIV_OWNER')
- }
- if report_taskdata:
- sigfile.seek(0)
- task_data['PN'] = d.getVar('PN')
- task_data['PV'] = d.getVar('PV')
- task_data['PR'] = d.getVar('PR')
- task_data['task'] = task
- task_data['outhash_siginfo'] = sigfile.read().decode('utf-8')
- headers = {'content-type': 'application/json'}
- request = urllib.request.Request(url, json.dumps(task_data).encode('utf-8'), headers)
- response = urllib.request.urlopen(request)
- data = response.read().decode('utf-8')
- json_data = json.loads(data)
- new_unihash = json_data['unihash']
- if new_unihash != unihash:
- bb.debug(1, 'Task %s unihash changed %s -> %s by server %s' % (taskhash, unihash, new_unihash, self.server))
- else:
- bb.debug(1, 'Reported task %s as unihash %s to %s' % (taskhash, unihash, self.server))
- except urllib.error.URLError as e:
- bb.warn('Failure contacting Hash Equivalence Server %s: %s' % (self.server, str(e)))
- except (KeyError, json.JSONDecodeError) as e:
- bb.warn('Poorly formatted response from %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
- # 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 = ["${BUILD_ARCH}"]
- elif taskdata.startswith("nativesdk-"):
- pkgarchs = ["${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'
- try:
- os.chdir(path)
- update_hash("OEOuthashBasic\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:
- update_hash(" %10s" % pwd.getpwuid(s.st_uid).pw_name)
- update_hash(" %10s" % grp.getgrgid(s.st_gid).gr_name)
- 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()
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