def download(self,
from_infos,
to_infos,
no_progress_bar=False,
names=None):
names = self._verify_path_args(from_infos, to_infos, names)
for to_info, from_info, name in zip(to_infos, from_infos, names):
if from_info['scheme'] != self.scheme:
raise NotImplementedError
if to_info['scheme'] != 'local':
raise NotImplementedError
bucket = from_info['bucket']
path = from_info['path']
logger.debug("Downloading '{}/{}' to '{}'".format(
bucket, path, to_info['path']))
tmp_file = self.tmp_file(to_info['path'])
if not name:
name = os.path.basename(to_info['path'])
cb = None if no_progress_bar else Callback(name)
self._makedirs(to_info['path'])
try:
self.blob_service.get_blob_to_path(bucket,
path,
tmp_file,
progress_callback=cb)
except Exception:
msg = "failed to download '{}/{}'".format(bucket, path)
logger.warning(msg)
else:
os.rename(tmp_file, to_info['path'])
if not no_progress_bar:
progress.finish_target(name)
def reproduce(self, force=False, dry=False, interactive=False):
if not self.changed() and not force:
return None
if (self.cmd or self.is_import) and not self.locked and not dry:
# Removing outputs only if we actually have command to reproduce
self.remove_outs(ignore_remove=False)
msg = "Going to reproduce '{stage}'. Are you sure you want to continue?".format(
stage=self.relpath)
if interactive and not prompt.confirm(msg):
raise DvcException("reproduction aborted by the user")
logger.info("Reproducing '{stage}'".format(stage=self.relpath))
self.run(dry=dry)
logger.debug("'{stage}' was reproduced".format(stage=self.relpath))
return self
def daemon(args):
"""Launch a `dvc daemon` command in a detached process.
Args:
args (list): list of arguments to append to `dvc daemon` command.
"""
cmd = [sys.executable]
if not is_binary():
cmd += ['-m', 'dvc']
cmd += ['daemon', '-q'] + args
logger.debug("Trying to spawn '{}'".format(cmd))
if os.name == 'nt':
_spawn_windows(cmd)
elif os.name == 'posix':
_spawn_posix(cmd)
else:
raise NotImplementedError
logger.debug("Spawned '{}'".format(cmd))
def reproduce(self,
force=False,
dry=False,
interactive=False,
no_commit=False):
if not self.changed() and not force:
return None
msg = ("Going to reproduce '{stage}'. "
"Are you sure you want to continue?".format(stage=self.relpath))
if interactive and not prompt.confirm(msg):
raise DvcException("reproduction aborted by the user")
logger.info("Reproducing '{stage}'".format(stage=self.relpath))
self.run(dry=dry, no_commit=no_commit, force=force)
logger.debug("'{stage}' was reproduced".format(stage=self.relpath))
return self
def checkout(self, output, force=False, progress_callback=None):
scheme = output.path_info["scheme"]
if scheme not in ["", "local"] and scheme != self.scheme:
raise NotImplementedError
checksum = output.info.get(self.PARAM_CHECKSUM)
if not checksum:
msg = "No checksum info for '{}'."
logger.debug(msg.format(str(output.path_info)))
return
if not self.changed(output.path_info, output.info):
msg = "Data '{}' didn't change."
logger.debug(msg.format(str(output.path_info)))
return
if self.changed_cache(checksum):
msg = "Cache '{}' not found. File '{}' won't be created."
logger.warning(msg.format(checksum, str(output.path_info)))
self.safe_remove(output.path_info, force=force)
return
msg = "Checking out '{}' with cache '{}'."
logger.debug(msg.format(str(output.path_info), checksum))
self.do_checkout(output,
force=force,
progress_callback=progress_callback)
def upload(self, from_infos, to_infos, names=None):
names = self._verify_path_args(to_infos, from_infos, names)
ssh = self.ssh(host=to_infos[0]['host'],
user=to_infos[0]['user'],
port=to_infos[0]['port'])
sftp = ssh.open_sftp()
for from_info, to_info, name in zip(from_infos, to_infos, names):
if to_info['scheme'] != 'ssh':
raise NotImplementedError
if from_info['scheme'] != 'local':
raise NotImplementedError
logger.debug("Uploading '{}' to '{}/{}'".format(from_info['path'],
to_info['host'],
to_info['path']))
if not name:
name = os.path.basename(from_info['path'])
dname = posixpath.dirname(to_info['path'])
self._exec(ssh, 'mkdir -p {}'.format(dname))
try:
sftp.put(from_info['path'],
to_info['path'],
callback=create_cb(name))
except Exception:
msg = "failed to upload '{}' to '{}/{}'"
logger.error(msg.format(from_info['path'],
to_info['host'],
to_info['path']))
continue
progress.finish_target(name)
sftp.close()
ssh.close()
def _unprotect_file(self, path):
import stat
import uuid
from dvc.system import System
from dvc.utils import copyfile, move, remove
if System.is_symlink(path) or System.is_hardlink(path):
logger.debug("Unprotecting '{}'".format(path))
tmp = os.path.join(os.path.dirname(path), "." + str(uuid.uuid4()))
move(path, tmp)
copyfile(tmp, path)
remove(tmp)
else:
logger.debug(
"Skipping copying for '{}', since it is not "
"a symlink or a hardlink.".format(path)
)
os.chmod(path, os.stat(path).st_mode | stat.S_IWRITE)
def download(
self,
from_infos,
to_infos,
no_progress_bar=False,
names=None,
resume=False,
):
names = self._verify_path_args(from_infos, to_infos, names)
for to_info, from_info, name in zip(to_infos, from_infos, names):
if from_info["scheme"] != "local":
raise NotImplementedError
if to_info["scheme"] != "local":
raise NotImplementedError
logger.debug("Downloading '{}' to '{}'".format(
from_info["path"], to_info["path"]))
if not name:
name = os.path.basename(to_info["path"])
makedirs(os.path.dirname(to_info["path"]), exist_ok=True)
tmp_file = tmp_fname(to_info["path"])
try:
copyfile(
from_info["path"],
tmp_file,
no_progress_bar=no_progress_bar,
name=name,
)
os.rename(tmp_file, to_info["path"])
except Exception:
logger.error("failed to download '{}' to '{}'".format(
from_info["path"], to_info["path"]))
continue
def test_exc_info_on_other_record_types(self, caplog, dt):
with caplog.at_level(logging.DEBUG, logger="dvc"):
try:
raise Exception("description")
except Exception:
stack_trace = traceback.format_exc()
logger.debug("", exc_info=True)
expected = (
"{green}{datetime}{nc} "
"{blue}DEBUG{nc}: description\n"
"{red}{line}{nc}\n"
"{stack_trace}"
"{red}{line}{nc}".format(
line="-" * 60,
stack_trace=stack_trace,
datetime=dt,
**colors,
)
)
assert expected == formatter.format(caplog.records[0])
def _compute_md5(self):
from dvc.output.local import OutputLOCAL
d = self.dumpd()
# NOTE: removing md5 manually in order to not affect md5s in deps/outs
if self.PARAM_MD5 in d.keys():
del d[self.PARAM_MD5]
# Ignore the wdir default value. In this case stage file w/o
# wdir has the same md5 as a file with the default value specified.
# It's important for backward compatibility with pipelines that
# didn't have WDIR in their stage files.
if d.get(self.PARAM_WDIR) == ".":
del d[self.PARAM_WDIR]
# NOTE: excluding parameters that don't affect the state of the
# pipeline. Not excluding `OutputLOCAL.PARAM_CACHE`, because if
# it has changed, we might not have that output in our cache.
m = dict_md5(d, exclude=[self.PARAM_LOCKED, OutputLOCAL.PARAM_METRIC])
logger.debug("Computed stage '{}' md5: '{}'".format(self.relpath, m))
return m
def _collect_dir_cache(self,
out,
branch=None,
remote=None,
force=False,
jobs=None):
info = out.dumpd()
ret = [info]
r = out.remote
md5 = info[r.PARAM_CHECKSUM]
if self.cache.local.changed_cache_file(md5):
try:
self.cloud.pull(ret,
jobs=jobs,
remote=remote,
show_checksums=False)
except DvcException as exc:
msg = "Failed to pull cache for '{}': {}"
logger.debug(msg.format(out, exc))
if self.cache.local.changed_cache_file(md5):
msg = ("Missing cache for directory '{}'. "
"Cache for files inside will be lost. "
"Would you like to continue? Use '-f' to force. ")
if not force and not prompt.confirm(msg):
raise DvcException(
"unable to fully collect used cache"
" without cache for directory '{}'".format(out))
else:
return ret
for i in self.cache.local.load_dir_cache(md5):
i["branch"] = branch
i[r.PARAM_PATH] = os.path.join(info[r.PARAM_PATH],
i[r.PARAM_RELPATH])
ret.append(i)
return ret
def upload(self, from_infos, to_infos, names=None):
names = self._verify_path_args(to_infos, from_infos, names)
for from_info, to_info, name in zip(from_infos, to_infos, names):
if to_info["scheme"] != "local":
raise NotImplementedError
if from_info["scheme"] != "local":
raise NotImplementedError
logger.debug("Uploading '{}' to '{}'".format(
from_info["path"], to_info["path"]))
if not name:
name = os.path.basename(from_info["path"])
makedirs(os.path.dirname(to_info["path"]), exist_ok=True)
try:
copyfile(from_info["path"], to_info["path"], name=name)
except Exception:
logger.error("failed to upload '{}' to '{}'".format(
from_info["path"], to_info["path"]))
def upload(self, from_infos, to_infos, names=None):
names = self._verify_path_args(to_infos, from_infos, names)
for from_info, to_info, name in zip(from_infos, to_infos, names):
if to_info['scheme'] != 'local':
raise NotImplementedError
if from_info['scheme'] != 'local':
raise NotImplementedError
logger.debug("Uploading '{}' to '{}'".format(
from_info['path'], to_info['path']))
if not name:
name = os.path.basename(from_info['path'])
self._makedirs(to_info['path'])
try:
copyfile(from_info['path'], to_info['path'], name=name)
except Exception:
logger.error("failed to upload '{}' to '{}'".format(
from_info['path'], to_info['path']))
def ssh(self, host=None, user=None, port=None):
msg = "Establishing ssh connection with '{}' " \
"through port '{}' as user '{}'"
logger.debug(msg.format(host, port, user))
ssh = paramiko.SSHClient()
ssh.load_system_host_keys()
ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
if self.ask_password and self.password is None:
msg = ("Enter a private key passphrase or a password for "
"host '{}' port '{}' user '{}'").format(host, port, user)
self.password = prompt.password(msg)
ssh.connect(host,
username=user,
port=port,
key_filename=self.keyfile,
timeout=self.timeout,
password=self.password)
return ssh
def _unprotect_file(path):
if System.is_symlink(path) or System.is_hardlink(path):
logger.debug("Unprotecting '{}'".format(path))
tmp = os.path.join(os.path.dirname(path), "." + str(uuid.uuid4()))
# The operations order is important here - if some application
# would access the file during the process of copyfile then it
# would get only the part of file. So, at first, the file should be
# copied with the temporary name, and then original file should be
# replaced by new.
copyfile(
path,
tmp,
name="Unprotecting '{}'".format(os.path.relpath(path)),
)
remove(path)
os.rename(tmp, path)
else:
logger.debug("Skipping copying for '{}', since it is not "
"a symlink or a hardlink.".format(path))
os.chmod(path, os.stat(path).st_mode | stat.S_IWRITE)
def upload(self, from_infos, to_infos, names=None):
names = self._verify_path_args(to_infos, from_infos, names)
s3 = self.s3
for from_info, to_info, name in zip(from_infos, to_infos, names):
if to_info["scheme"] != "s3":
raise NotImplementedError
if from_info["scheme"] != "local":
raise NotImplementedError
logger.debug(
"Uploading '{}' to '{}/{}'".format(
from_info["path"], to_info["bucket"], to_info["path"]
)
)
if not name:
name = os.path.basename(from_info["path"])
total = os.path.getsize(from_info["path"])
cb = Callback(name, total)
try:
s3.upload_file(
from_info["path"],
to_info["bucket"],
to_info["path"],
Callback=cb,
)
except Exception:
msg = "failed to upload '{}'".format(from_info["path"])
logger.error(msg)
continue
progress.finish_target(name)
def upload(self, from_infos, to_infos, names=None):
names = self._verify_path_args(to_infos, from_infos, names)
gs = self.gs
for from_info, to_info, name in zip(from_infos, to_infos, names):
if to_info["scheme"] != "gs":
raise NotImplementedError
if from_info["scheme"] != "local":
raise NotImplementedError
logger.debug(
"Uploading '{}' to '{}/{}'".format(
from_info["path"], to_info["bucket"], to_info["path"]
)
)
if not name:
name = os.path.basename(from_info["path"])
progress.update_target(name, 0, None)
try:
bucket = gs.bucket(to_info["bucket"])
blob = bucket.blob(to_info["path"])
blob.upload_from_filename(from_info["path"])
except Exception:
msg = "failed to upload '{}' to '{}/{}'"
logger.error(
msg.format(
from_info["path"], to_info["bucket"], to_info["path"]
)
)
continue
progress.finish_target(name)
def blob_service(self):
if self.__blob_service is None:
logger.debug('URL {}'.format(self.url))
logger.debug('Connection string {}'.format(self.connection_string))
self.__blob_service = BlockBlobService(
connection_string=self.connection_string)
logger.debug('Container name {}'.format(self.bucket))
self.__blob_service.create_container(self.bucket)
return self.__blob_service
def blob_service(self):
if self.__blob_service is None:
logger.debug("URL {}".format(self.url))
logger.debug("Connection string {}".format(self.connection_string))
self.__blob_service = BlockBlobService(
connection_string=self.connection_string
)
logger.debug("Container name {}".format(self.bucket))
try: # verify that container exists
self.__blob_service.list_blobs(
self.bucket, delimiter="/", num_results=1
)
except AzureMissingResourceHttpError:
self.__blob_service.create_container(self.bucket)
return self.__blob_service
def link(self, cache, path):
assert os.path.isfile(cache)
dname = os.path.dirname(path)
if not os.path.exists(dname):
os.makedirs(dname)
# NOTE: just create an empty file for an empty cache
if os.path.getsize(cache) == 0:
open(path, "w+").close()
msg = "Created empty file: {} -> {}".format(cache, path)
logger.debug(msg)
return
i = len(self.cache_types)
while i > 0:
try:
self.CACHE_TYPE_MAP[self.cache_types[0]](cache, path)
if self.protected:
os.chmod(path, stat.S_IREAD | stat.S_IRGRP | stat.S_IROTH)
msg = "Created {}'{}': {} -> {}".format(
"protected " if self.protected else "",
self.cache_types[0],
cache,
path,
)
logger.debug(msg)
return
except DvcException as exc:
msg = "Cache type '{}' is not supported: {}"
logger.debug(msg.format(self.cache_types[0], str(exc)))
del self.cache_types[0]
i -= 1
raise DvcException("no possible cache types left to try out.")
def test_debug(self):
with logger.verbose():
logger.debug("message")
self.assertEqual(self.stdout, "Debug: message\n")
def percent_cb(name, complete, total):
""" Callback for updating target progress """
logger.debug("{}: {} transferred out of {}".format(name,
sizeof_fmt(complete),
sizeof_fmt(total)))
progress.update_target(name, complete, total)
def _is_outdated_file(self):
ctime = os.path.getmtime(self.updater_file)
outdated = (time.time() - ctime >= self.TIMEOUT)
if outdated:
logger.debug("'{}' is outdated(".format(self.updater_file))
return outdated
def _do_update(self, path):
"""
Make sure the stored info for the given path is up to date.
"""
if not os.path.exists(path):
return (None, None)
actual_mtime, actual_size = self._mtime_and_size(path)
actual_inode = self._inode(path)
cmd = "SELECT * from {} WHERE inode={}".format(
self.STATE_TABLE, self._to_sqlite(actual_inode)
)
self._execute(cmd)
ret = self._fetchall()
if not ret:
md5, info = self._collect(path)
cmd = (
"INSERT INTO {}(inode, mtime, size, md5, timestamp) "
'VALUES ({}, "{}", "{}", "{}", "{}")'
)
self._execute(
cmd.format(
self.STATE_TABLE,
self._to_sqlite(actual_inode),
actual_mtime,
actual_size,
md5,
int(nanotime.timestamp(time.time())),
)
)
self.inserts += 1
else:
assert len(ret) == 1
assert len(ret[0]) == 5
inode, mtime, size, md5, _ = ret[0]
inode = self._from_sqlite(inode)
assert inode == actual_inode
logger.debug(
"Inode '{}', mtime '{}', actual mtime '{}', size '{}', "
"actual size '{}'.".format(
inode, mtime, actual_mtime, size, actual_size
)
)
if actual_mtime != mtime or actual_size != size:
md5, info = self._collect(path)
cmd = (
"UPDATE {} SET "
'mtime = "{}", size = "{}", '
'md5 = "{}", timestamp = "{}" '
"WHERE inode = {}"
)
self._execute(
cmd.format(
self.STATE_TABLE,
actual_mtime,
actual_size,
md5,
int(nanotime.timestamp(time.time())),
self._to_sqlite(actual_inode),
)
)
else:
info = None
cmd = 'UPDATE {} SET timestamp = "{}" WHERE inode = {}'
self._execute(
cmd.format(
self.STATE_TABLE,
int(nanotime.timestamp(time.time())),
self._to_sqlite(actual_inode),
)
)
return (md5, info)
def _inode(path):
logger.debug("Path {} inode {}".format(path, System.inode(path)))
return System.inode(path)
def _fetchall(self):
ret = self.cursor.fetchall()
logger.debug("fetched: {}".format(ret))
return ret
def _execute(self, cmd):
logger.debug(cmd)
return self.cursor.execute(cmd)
def changed(self, path_info, checksum_info):
"""Checks if data has changed.
A file is considered changed if:
- It doesn't exist on the working directory (was unlinked)
- Checksum is not computed (saving a new file)
- The checkusm stored in the State is different from the given one
- There's no file in the cache
Args:
path_info: dict with path information.
checksum: expected checksum for this data.
Returns:
bool: True if data has changed, False otherwise.
"""
logger.debug("checking if '{}'('{}') has changed.".format(
path_info, checksum_info))
if not self.exists(path_info):
logger.debug("'{}' doesn't exist.".format(path_info))
return True
checksum = checksum_info.get(self.PARAM_CHECKSUM)
if checksum is None:
logger.debug("checksum for '{}' is missing.".format(path_info))
return True
if self.changed_cache(checksum):
logger.debug("cache for '{}'('{}') has changed.".format(
path_info, checksum))
return True
actual = self.save_info(path_info)[self.PARAM_CHECKSUM]
if checksum != actual:
logger.debug(
"checksum '{}'(actual '{}') for '{}' has changed.".format(
checksum, actual, path_info))
return True
logger.debug("'{}' hasn't changed.".format(path_info))
return False
def inode(path):
logger.debug('Path {} inode {}'.format(path, System.inode(path)))
return System.inode(path)
def install_or_update(self, parent_repo, pkg_params):
from git.cmd import Git
if not self.is_in_root():
raise DvcException(
"This command can be run only from a repository root"
)
if not os.path.exists(self.MODULES_DIR):
logger.debug("Creating modules dir {}".format(self.MODULES_DIR))
os.makedirs(self.MODULES_DIR)
parent_repo.scm.ignore(os.path.abspath(self.MODULES_DIR))
module_name = (
Git.polish_url(pkg_params.address).strip("/").split("/")[-1]
)
if not module_name:
raise DvcException(
"Package address error: unable to extract package name"
)
with TempGitRepo(
pkg_params.address, module_name, Package.MODULES_DIR
) as tmp_repo:
outputs_to_copy = tmp_repo.outs
if pkg_params.select:
outputs_to_copy = list(
filter(
lambda out: out.dvc_path in pkg_params.select,
outputs_to_copy,
)
)
fetched_stage_files = set(
map(lambda o: o.stage.path, outputs_to_copy)
)
tmp_repo.fetch(fetched_stage_files)
module_dir = self.create_module_dir(module_name)
tmp_repo.persist_to(module_dir, parent_repo)
dvc_file = self.get_dvc_file_name(
pkg_params.file, pkg_params.target_dir, module_name
)
try:
self.persist_stage_and_scm_state(
parent_repo,
outputs_to_copy,
pkg_params.target_dir,
dvc_file,
)
except Exception as ex:
raise DvcException(
"Package '{}' was installed "
"but stage file '{}' "
"was not created properly: {}".format(
pkg_params.address, dvc_file, ex
)
)
parent_repo.checkout(dvc_file)
