text_prompt stringlengths 157 13.1k | code_prompt stringlengths 7 19.8k ⌀ |
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def run_py(self, cmd, cwd=os.curdir):
"""Run a python command in the enviornment context. :param cmd: A command to run in the environment - runs with `python -c`... |
c = None
if isinstance(cmd, six.string_types):
script = vistir.cmdparse.Script.parse("{0} -c {1}".format(self.python, cmd))
else:
script = vistir.cmdparse.Script.parse([self.python, "-c"] + list(cmd))
with self.activated():
c = vistir.misc.run(script... |
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def run_activate_this(self):
"""Runs the environment's inline activation script""" |
if self.is_venv:
activate_this = os.path.join(self.scripts_dir, "activate_this.py")
if not os.path.isfile(activate_this):
raise OSError("No such file: {0!s}".format(activate_this))
with open(activate_this, "r") as f:
code = compile(f.read(), a... |
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def activated(self, include_extras=True, extra_dists=None):
"""Helper context manager to activate the environment. This context manager will set the following va... |
if not extra_dists:
extra_dists = []
original_path = sys.path
original_prefix = sys.prefix
parent_path = vistir.compat.Path(__file__).absolute().parent
vendor_dir = parent_path.joinpath("vendor").as_posix()
patched_dir = parent_path.joinpath("patched").as_po... |
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def uninstall(self, pkgname, *args, **kwargs):
"""A context manager which allows uninstallation of packages from the environment :param str pkgname: The name of ... |
auto_confirm = kwargs.pop("auto_confirm", True)
verbose = kwargs.pop("verbose", False)
with self.activated():
monkey_patch = next(iter(
dist for dist in self.base_working_set
if dist.project_name == "recursive-monkey-patch"
), None)
... |
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def stn(s, length, encoding, errors):
"""Convert a string to a null-terminated bytes object. """ |
s = s.encode(encoding, errors)
return s[:length] + (length - len(s)) * NUL |
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def nts(s, encoding, errors):
"""Convert a null-terminated bytes object to a string. """ |
p = s.find(b"\0")
if p != -1:
s = s[:p]
return s.decode(encoding, errors) |
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def itn(n, digits=8, format=DEFAULT_FORMAT):
"""Convert a python number to a number field. """ |
# POSIX 1003.1-1988 requires numbers to be encoded as a string of
# octal digits followed by a null-byte, this allows values up to
# (8**(digits-1))-1. GNU tar allows storing numbers greater than
# that if necessary. A leading 0o200 byte indicates this particular
# encoding, the following digits-1 ... |
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def is_tarfile(name):
"""Return True if name points to a tar archive that we are able to handle, else return False. """ |
try:
t = open(name)
t.close()
return True
except TarError:
return False |
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def _init_write_gz(self):
"""Initialize for writing with gzip compression. """ |
self.cmp = self.zlib.compressobj(9, self.zlib.DEFLATED,
-self.zlib.MAX_WBITS,
self.zlib.DEF_MEM_LEVEL,
0)
timestamp = struct.pack("<L", int(time.time()))
self.__wr... |
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def write(self, s):
"""Write string s to the stream. """ |
if self.comptype == "gz":
self.crc = self.zlib.crc32(s, self.crc)
self.pos += len(s)
if self.comptype != "tar":
s = self.cmp.compress(s)
self.__write(s) |
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def __write(self, s):
"""Write string s to the stream if a whole new block is ready to be written. """ |
self.buf += s
while len(self.buf) > self.bufsize:
self.fileobj.write(self.buf[:self.bufsize])
self.buf = self.buf[self.bufsize:] |
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def close(self):
"""Close the _Stream object. No operation should be done on it afterwards. """ |
if self.closed:
return
if self.mode == "w" and self.comptype != "tar":
self.buf += self.cmp.flush()
if self.mode == "w" and self.buf:
self.fileobj.write(self.buf)
self.buf = b""
if self.comptype == "gz":
# The native ... |
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def _init_read_gz(self):
"""Initialize for reading a gzip compressed fileobj. """ |
self.cmp = self.zlib.decompressobj(-self.zlib.MAX_WBITS)
self.dbuf = b""
# taken from gzip.GzipFile with some alterations
if self.__read(2) != b"\037\213":
raise ReadError("not a gzip file")
if self.__read(1) != b"\010":
raise CompressionError("unsupport... |
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def seek(self, pos=0):
"""Set the stream's file pointer to pos. Negative seeking is forbidden. """ |
if pos - self.pos >= 0:
blocks, remainder = divmod(pos - self.pos, self.bufsize)
for i in range(blocks):
self.read(self.bufsize)
self.read(remainder)
else:
raise StreamError("seeking backwards is not allowed")
return self.pos |
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def read(self, size=None):
"""Return the next size number of bytes from the stream. If size is not defined, return all bytes of the stream up to EOF. """ |
if size is None:
t = []
while True:
buf = self._read(self.bufsize)
if not buf:
break
t.append(buf)
buf = "".join(t)
else:
buf = self._read(size)
self.pos += len(buf)
retur... |
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def _read(self, size):
"""Return size bytes from the stream. """ |
if self.comptype == "tar":
return self.__read(size)
c = len(self.dbuf)
while c < size:
buf = self.__read(self.bufsize)
if not buf:
break
try:
buf = self.cmp.decompress(buf)
except IOError:
... |
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def __read(self, size):
"""Return size bytes from stream. If internal buffer is empty, read another block from the stream. """ |
c = len(self.buf)
while c < size:
buf = self.fileobj.read(self.bufsize)
if not buf:
break
self.buf += buf
c += len(buf)
buf = self.buf[:size]
self.buf = self.buf[size:]
return buf |
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def read(self, size=None):
"""Read at most size bytes from the file. If size is not present or None, read all data until EOF is reached. """ |
if self.closed:
raise ValueError("I/O operation on closed file")
buf = b""
if self.buffer:
if size is None:
buf = self.buffer
self.buffer = b""
else:
buf = self.buffer[:size]
self.buffer = self.... |
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def readline(self, size=-1):
"""Read one entire line from the file. If size is present and non-negative, return a string with at most that size, which may be an ... |
if self.closed:
raise ValueError("I/O operation on closed file")
pos = self.buffer.find(b"\n") + 1
if pos == 0:
# no newline found.
while True:
buf = self.fileobj.read(self.blocksize)
self.buffer += buf
if not ... |
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def seek(self, pos, whence=os.SEEK_SET):
"""Seek to a position in the file. """ |
if self.closed:
raise ValueError("I/O operation on closed file")
if whence == os.SEEK_SET:
self.position = min(max(pos, 0), self.size)
elif whence == os.SEEK_CUR:
if pos < 0:
self.position = max(self.position + pos, 0)
else:
... |
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def get_info(self):
"""Return the TarInfo's attributes as a dictionary. """ |
info = {
"name": self.name,
"mode": self.mode & 0o7777,
"uid": self.uid,
"gid": self.gid,
"size": self.size,
"mtime": self.mtime,
"chksum": self.chksum,
"type": self.type,
... |
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def tobuf(self, format=DEFAULT_FORMAT, encoding=ENCODING, errors="surrogateescape"):
"""Return a tar header as a string of 512 byte blocks. """ |
info = self.get_info()
if format == USTAR_FORMAT:
return self.create_ustar_header(info, encoding, errors)
elif format == GNU_FORMAT:
return self.create_gnu_header(info, encoding, errors)
elif format == PAX_FORMAT:
return self.create_pax_header(info, ... |
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def create_ustar_header(self, info, encoding, errors):
"""Return the object as a ustar header block. """ |
info["magic"] = POSIX_MAGIC
if len(info["linkname"]) > LENGTH_LINK:
raise ValueError("linkname is too long")
if len(info["name"]) > LENGTH_NAME:
info["prefix"], info["name"] = self._posix_split_name(info["name"])
return self._create_header(info, USTAR_FORMAT, ... |
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def create_gnu_header(self, info, encoding, errors):
"""Return the object as a GNU header block sequence. """ |
info["magic"] = GNU_MAGIC
buf = b""
if len(info["linkname"]) > LENGTH_LINK:
buf += self._create_gnu_long_header(info["linkname"], GNUTYPE_LONGLINK, encoding, errors)
if len(info["name"]) > LENGTH_NAME:
buf += self._create_gnu_long_header(info["name"], GNUTYPE_L... |
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def create_pax_header(self, info, encoding):
"""Return the object as a ustar header block. If it cannot be represented this way, prepend a pax extended header se... |
info["magic"] = POSIX_MAGIC
pax_headers = self.pax_headers.copy()
# Test string fields for values that exceed the field length or cannot
# be represented in ASCII encoding.
for name, hname, length in (
("name", "path", LENGTH_NAME), ("linkname", "linkpath", LENG... |
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def _posix_split_name(self, name):
"""Split a name longer than 100 chars into a prefix and a name part. """ |
prefix = name[:LENGTH_PREFIX + 1]
while prefix and prefix[-1] != "/":
prefix = prefix[:-1]
name = name[len(prefix):]
prefix = prefix[:-1]
if not prefix or len(name) > LENGTH_NAME:
raise ValueError("name is too long")
return prefix, name |
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def _create_payload(payload):
"""Return the string payload filled with zero bytes up to the next 512 byte border. """ |
blocks, remainder = divmod(len(payload), BLOCKSIZE)
if remainder > 0:
payload += (BLOCKSIZE - remainder) * NUL
return payload |
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def _create_gnu_long_header(cls, name, type, encoding, errors):
"""Return a GNUTYPE_LONGNAME or GNUTYPE_LONGLINK sequence for name. """ |
name = name.encode(encoding, errors) + NUL
info = {}
info["name"] = "././@LongLink"
info["type"] = type
info["size"] = len(name)
info["magic"] = GNU_MAGIC
# create extended header + name blocks.
return cls._create_header(info, USTAR_FORMAT, encoding, er... |
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def _create_pax_generic_header(cls, pax_headers, type, encoding):
"""Return a POSIX.1-2008 extended or global header sequence that contains a list of keyword, va... |
# Check if one of the fields contains surrogate characters and thereby
# forces hdrcharset=BINARY, see _proc_pax() for more information.
binary = False
for keyword, value in pax_headers.items():
try:
value.encode("utf8", "strict")
except UnicodeEn... |
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def frombuf(cls, buf, encoding, errors):
"""Construct a TarInfo object from a 512 byte bytes object. """ |
if len(buf) == 0:
raise EmptyHeaderError("empty header")
if len(buf) != BLOCKSIZE:
raise TruncatedHeaderError("truncated header")
if buf.count(NUL) == BLOCKSIZE:
raise EOFHeaderError("end of file header")
chksum = nti(buf[148:156])
if chksum ... |
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def fromtarfile(cls, tarfile):
"""Return the next TarInfo object from TarFile object tarfile. """ |
buf = tarfile.fileobj.read(BLOCKSIZE)
obj = cls.frombuf(buf, tarfile.encoding, tarfile.errors)
obj.offset = tarfile.fileobj.tell() - BLOCKSIZE
return obj._proc_member(tarfile) |
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def _proc_member(self, tarfile):
"""Choose the right processing method depending on the type and call it. """ |
if self.type in (GNUTYPE_LONGNAME, GNUTYPE_LONGLINK):
return self._proc_gnulong(tarfile)
elif self.type == GNUTYPE_SPARSE:
return self._proc_sparse(tarfile)
elif self.type in (XHDTYPE, XGLTYPE, SOLARIS_XHDTYPE):
return self._proc_pax(tarfile)
else:
... |
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def _proc_builtin(self, tarfile):
"""Process a builtin type or an unknown type which will be treated as a regular file. """ |
self.offset_data = tarfile.fileobj.tell()
offset = self.offset_data
if self.isreg() or self.type not in SUPPORTED_TYPES:
# Skip the following data blocks.
offset += self._block(self.size)
tarfile.offset = offset
# Patch the TarInfo object with saved glob... |
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def _proc_gnulong(self, tarfile):
"""Process the blocks that hold a GNU longname or longlink member. """ |
buf = tarfile.fileobj.read(self._block(self.size))
# Fetch the next header and process it.
try:
next = self.fromtarfile(tarfile)
except HeaderError:
raise SubsequentHeaderError("missing or bad subsequent header")
# Patch the TarInfo object from the next... |
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def _proc_sparse(self, tarfile):
"""Process a GNU sparse header plus extra headers. """ |
# We already collected some sparse structures in frombuf().
structs, isextended, origsize = self._sparse_structs
del self._sparse_structs
# Collect sparse structures from extended header blocks.
while isextended:
buf = tarfile.fileobj.read(BLOCKSIZE)
pos... |
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def _proc_pax(self, tarfile):
"""Process an extended or global header as described in POSIX.1-2008. """ |
# Read the header information.
buf = tarfile.fileobj.read(self._block(self.size))
# A pax header stores supplemental information for either
# the following file (extended) or all following files
# (global).
if self.type == XGLTYPE:
pax_headers = tarfile.pax_... |
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def _proc_gnusparse_00(self, next, pax_headers, buf):
"""Process a GNU tar extended sparse header, version 0.0. """ |
offsets = []
for match in re.finditer(br"\d+ GNU.sparse.offset=(\d+)\n", buf):
offsets.append(int(match.group(1)))
numbytes = []
for match in re.finditer(br"\d+ GNU.sparse.numbytes=(\d+)\n", buf):
numbytes.append(int(match.group(1)))
next.sparse = list(zi... |
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def _proc_gnusparse_01(self, next, pax_headers):
"""Process a GNU tar extended sparse header, version 0.1. """ |
sparse = [int(x) for x in pax_headers["GNU.sparse.map"].split(",")]
next.sparse = list(zip(sparse[::2], sparse[1::2])) |
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def _proc_gnusparse_10(self, next, pax_headers, tarfile):
"""Process a GNU tar extended sparse header, version 1.0. """ |
fields = None
sparse = []
buf = tarfile.fileobj.read(BLOCKSIZE)
fields, buf = buf.split(b"\n", 1)
fields = int(fields)
while len(sparse) < fields * 2:
if b"\n" not in buf:
buf += tarfile.fileobj.read(BLOCKSIZE)
number, buf = buf.sp... |
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def _apply_pax_info(self, pax_headers, encoding, errors):
"""Replace fields with supplemental information from a previous pax extended or global header. """ |
for keyword, value in pax_headers.items():
if keyword == "GNU.sparse.name":
setattr(self, "path", value)
elif keyword == "GNU.sparse.size":
setattr(self, "size", int(value))
elif keyword == "GNU.sparse.realsize":
setattr(self, ... |
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def _decode_pax_field(self, value, encoding, fallback_encoding, fallback_errors):
"""Decode a single field from a pax record. """ |
try:
return value.decode(encoding, "strict")
except UnicodeDecodeError:
return value.decode(fallback_encoding, fallback_errors) |
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def open(cls, name=None, mode="r", fileobj=None, bufsize=RECORDSIZE, **kwargs):
"""Open a tar archive for reading, writing or appending. Return an appropriate Ta... |
if not name and not fileobj:
raise ValueError("nothing to open")
if mode in ("r", "r:*"):
# Find out which *open() is appropriate for opening the file.
for comptype in cls.OPEN_METH:
func = getattr(cls, cls.OPEN_METH[comptype])
if fi... |
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def taropen(cls, name, mode="r", fileobj=None, **kwargs):
"""Open uncompressed tar archive name for reading or writing. """ |
if len(mode) > 1 or mode not in "raw":
raise ValueError("mode must be 'r', 'a' or 'w'")
return cls(name, mode, fileobj, **kwargs) |
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def gzopen(cls, name, mode="r", fileobj=None, compresslevel=9, **kwargs):
"""Open gzip compressed tar archive name for reading or writing. Appending is not allow... |
if len(mode) > 1 or mode not in "rw":
raise ValueError("mode must be 'r' or 'w'")
try:
import gzip
gzip.GzipFile
except (ImportError, AttributeError):
raise CompressionError("gzip module is not available")
extfileobj = fileobj is not Non... |
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def bz2open(cls, name, mode="r", fileobj=None, compresslevel=9, **kwargs):
"""Open bzip2 compressed tar archive name for reading or writing. Appending is not all... |
if len(mode) > 1 or mode not in "rw":
raise ValueError("mode must be 'r' or 'w'.")
try:
import bz2
except ImportError:
raise CompressionError("bz2 module is not available")
if fileobj is not None:
fileobj = _BZ2Proxy(fileobj, mode)
... |
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def close(self):
"""Close the TarFile. In write-mode, two finishing zero blocks are appended to the archive. """ |
if self.closed:
return
if self.mode in "aw":
self.fileobj.write(NUL * (BLOCKSIZE * 2))
self.offset += (BLOCKSIZE * 2)
# fill up the end with zero-blocks
# (like option -b20 for tar does)
blocks, remainder = divmod(self.offset, REC... |
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def getmember(self, name):
"""Return a TarInfo object for member `name'. If `name' can not be found in the archive, KeyError is raised. If a member occurs more t... |
tarinfo = self._getmember(name)
if tarinfo is None:
raise KeyError("filename %r not found" % name)
return tarinfo |
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def getmembers(self):
"""Return the members of the archive as a list of TarInfo objects. The list has the same order as the members in the archive. """ |
self._check()
if not self._loaded: # if we want to obtain a list of
self._load() # all members, we first have to
# scan the whole archive.
return self.members |
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def list(self, verbose=True):
"""Print a table of contents to sys.stdout. If `verbose' is False, only the names of the members are printed. If it is True, an `ls... |
self._check()
for tarinfo in self:
if verbose:
print(filemode(tarinfo.mode), end=' ')
print("%s/%s" % (tarinfo.uname or tarinfo.uid,
tarinfo.gname or tarinfo.gid), end=' ')
if tarinfo.ischr() or tarinfo.isblk(... |
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def _extract_member(self, tarinfo, targetpath, set_attrs=True):
"""Extract the TarInfo object tarinfo to a physical file called targetpath. """ |
# Fetch the TarInfo object for the given name
# and build the destination pathname, replacing
# forward slashes to platform specific separators.
targetpath = targetpath.rstrip("/")
targetpath = targetpath.replace("/", os.sep)
# Create all upper directories.
uppe... |
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def makedir(self, tarinfo, targetpath):
"""Make a directory called targetpath. """ |
try:
# Use a safe mode for the directory, the real mode is set
# later in _extract_member().
os.mkdir(targetpath, 0o700)
except EnvironmentError as e:
if e.errno != errno.EEXIST:
raise |
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def makefile(self, tarinfo, targetpath):
"""Make a file called targetpath. """ |
source = self.fileobj
source.seek(tarinfo.offset_data)
target = bltn_open(targetpath, "wb")
if tarinfo.sparse is not None:
for offset, size in tarinfo.sparse:
target.seek(offset)
copyfileobj(source, target, size)
else:
copy... |
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def makeunknown(self, tarinfo, targetpath):
"""Make a file from a TarInfo object with an unknown type at targetpath. """ |
self.makefile(tarinfo, targetpath)
self._dbg(1, "tarfile: Unknown file type %r, " \
"extracted as regular file." % tarinfo.type) |
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def makefifo(self, tarinfo, targetpath):
"""Make a fifo called targetpath. """ |
if hasattr(os, "mkfifo"):
os.mkfifo(targetpath)
else:
raise ExtractError("fifo not supported by system") |
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def makedev(self, tarinfo, targetpath):
"""Make a character or block device called targetpath. """ |
if not hasattr(os, "mknod") or not hasattr(os, "makedev"):
raise ExtractError("special devices not supported by system")
mode = tarinfo.mode
if tarinfo.isblk():
mode |= stat.S_IFBLK
else:
mode |= stat.S_IFCHR
os.mknod(targetpath, mode,
... |
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def chown(self, tarinfo, targetpath):
"""Set owner of targetpath according to tarinfo. """ |
if pwd and hasattr(os, "geteuid") and os.geteuid() == 0:
# We have to be root to do so.
try:
g = grp.getgrnam(tarinfo.gname)[2]
except KeyError:
g = tarinfo.gid
try:
u = pwd.getpwnam(tarinfo.uname)[2]
ex... |
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def chmod(self, tarinfo, targetpath):
"""Set file permissions of targetpath according to tarinfo. """ |
if hasattr(os, 'chmod'):
try:
os.chmod(targetpath, tarinfo.mode)
except EnvironmentError as e:
raise ExtractError("could not change mode") |
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def utime(self, tarinfo, targetpath):
"""Set modification time of targetpath according to tarinfo. """ |
if not hasattr(os, 'utime'):
return
try:
os.utime(targetpath, (tarinfo.mtime, tarinfo.mtime))
except EnvironmentError as e:
raise ExtractError("could not change modification time") |
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def next(self):
"""Return the next member of the archive as a TarInfo object, when TarFile is opened for reading. Return None if there is no more available. """ |
self._check("ra")
if self.firstmember is not None:
m = self.firstmember
self.firstmember = None
return m
# Read the next block.
self.fileobj.seek(self.offset)
tarinfo = None
while True:
try:
tarinfo = self.... |
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def _getmember(self, name, tarinfo=None, normalize=False):
"""Find an archive member by name from bottom to top. If tarinfo is given, it is used as the starting ... |
# Ensure that all members have been loaded.
members = self.getmembers()
# Limit the member search list up to tarinfo.
if tarinfo is not None:
members = members[:members.index(tarinfo)]
if normalize:
name = os.path.normpath(name)
for member in r... |
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def _load(self):
"""Read through the entire archive file and look for readable members. """ |
while True:
tarinfo = self.next()
if tarinfo is None:
break
self._loaded = True |
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def _check(self, mode=None):
"""Check if TarFile is still open, and if the operation's mode corresponds to TarFile's mode. """ |
if self.closed:
raise IOError("%s is closed" % self.__class__.__name__)
if mode is not None and self.mode not in mode:
raise IOError("bad operation for mode %r" % self.mode) |
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def _find_link_target(self, tarinfo):
"""Find the target member of a symlink or hardlink member in the archive. """ |
if tarinfo.issym():
# Always search the entire archive.
linkname = os.path.dirname(tarinfo.name) + "/" + tarinfo.linkname
limit = None
else:
# Search the archive before the link, because a hard link is
# just a reference to an already archived... |
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def _dbg(self, level, msg):
"""Write debugging output to sys.stderr. """ |
if level <= self.debug:
print(msg, file=sys.stderr) |
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def path_to(self, p):
"""Returns the absolute path to a given relative path.""" |
if os.path.isabs(p):
return p
return os.sep.join([self._original_dir, p]) |
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def _build_package_list(self, package_section):
"""Returns a list of packages for pip-tools to consume.""" |
from pipenv.vendor.requirementslib.utils import is_vcs
ps = {}
# TODO: Separate the logic for showing packages from the filters for supplying pip-tools
for k, v in self.parsed_pipfile.get(package_section, {}).items():
# Skip editable VCS deps.
if hasattr(v, "keys... |
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def _get_virtualenv_hash(self, name):
"""Get the name of the virtualenv adjusted for windows if needed Returns (name, encoded_hash) """ |
def get_name(name, location):
name = self._sanitize(name)
hash = hashlib.sha256(location.encode()).digest()[:6]
encoded_hash = base64.urlsafe_b64encode(hash).decode()
return name, encoded_hash[:8]
clean_name, encoded_hash = get_name(name, self.pipfile_l... |
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def register_proper_name(self, name):
"""Registers a proper name to the database.""" |
with self.proper_names_db_path.open("a") as f:
f.write(u"{0}\n".format(name)) |
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def parsed_pipfile(self):
"""Parse Pipfile into a TOMLFile and cache it (call clear_pipfile_cache() afterwards if mutating)""" |
contents = self.read_pipfile()
# use full contents to get around str/bytes 2/3 issues
cache_key = (self.pipfile_location, contents)
if cache_key not in _pipfile_cache:
parsed = self._parse_pipfile(contents)
_pipfile_cache[cache_key] = parsed
return _pipfi... |
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def _lockfile(self):
"""Pipfile.lock divided by PyPI and external dependencies.""" |
pfile = pipfile.load(self.pipfile_location, inject_env=False)
lockfile = json.loads(pfile.lock())
for section in ("default", "develop"):
lock_section = lockfile.get(section, {})
for key in list(lock_section.keys()):
norm_key = pep423_name(key)
... |
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def create_pipfile(self, python=None):
"""Creates the Pipfile, filled with juicy defaults.""" |
from .vendor.pip_shims.shims import (
ConfigOptionParser, make_option_group, index_group
)
config_parser = ConfigOptionParser(name=self.name)
config_parser.add_option_group(make_option_group(index_group, config_parser))
install = config_parser.option_groups[0]
... |
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def write_toml(self, data, path=None):
"""Writes the given data structure out as TOML.""" |
if path is None:
path = self.pipfile_location
data = convert_toml_outline_tables(data)
try:
formatted_data = tomlkit.dumps(data).rstrip()
except Exception:
document = tomlkit.document()
for section in ("packages", "dev-packages"):
... |
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def write_lockfile(self, content):
"""Write out the lockfile. """ |
s = self._lockfile_encoder.encode(content)
open_kwargs = {"newline": self._lockfile_newlines, "encoding": "utf-8"}
with vistir.contextmanagers.atomic_open_for_write(
self.lockfile_location, **open_kwargs
) as f:
f.write(s)
# Write newline at end of do... |
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def find_source(self, source):
""" Given a source, find it. source can be a url or an index name. """ |
if not is_valid_url(source):
try:
source = self.get_source(name=source)
except SourceNotFound:
source = self.get_source(url=source)
else:
source = self.get_source(url=source)
return source |
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def get_package_name_in_pipfile(self, package_name, dev=False):
"""Get the equivalent package name in pipfile""" |
key = "dev-packages" if dev else "packages"
section = self.parsed_pipfile.get(key, {})
package_name = pep423_name(package_name)
for name in section.keys():
if pep423_name(name) == package_name:
return name
return None |
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def add_index_to_pipfile(self, index, verify_ssl=True):
"""Adds a given index to the Pipfile.""" |
# Read and append Pipfile.
p = self.parsed_pipfile
try:
self.get_source(url=index)
except SourceNotFound:
source = {"url": index, "verify_ssl": verify_ssl}
else:
return
source["name"] = self.src_name_from_url(index)
# Add the p... |
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def ensure_proper_casing(self):
"""Ensures proper casing of Pipfile packages""" |
pfile = self.parsed_pipfile
casing_changed = self.proper_case_section(pfile.get("packages", {}))
casing_changed |= self.proper_case_section(pfile.get("dev-packages", {}))
return casing_changed |
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def proper_case_section(self, section):
"""Verify proper casing is retrieved, when available, for each dependency in the section. """ |
# Casing for section.
changed_values = False
unknown_names = [k for k in section.keys() if k not in set(self.proper_names)]
# Replace each package with proper casing.
for dep in unknown_names:
try:
# Get new casing for package name.
ne... |
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def reverse(self):
""" Reverse the order of all items in the dictionary. Example: omd = omdict([(1,1), (1,11), (1,111), (2,2), (3,3)]) omd.reverse() omd.allitems... |
for key in six.iterkeys(self._map):
self._map[key].reverse()
self._items.reverse()
return self |
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def _unpack_args(args, nargs_spec):
"""Given an iterable of arguments and an iterable of nargs specifications, it returns a tuple with all the unpacked arguments... |
args = deque(args)
nargs_spec = deque(nargs_spec)
rv = []
spos = None
def _fetch(c):
try:
if spos is None:
return c.popleft()
else:
return c.pop()
except IndexError:
return None
while nargs_spec:
nargs... |
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def split_arg_string(string):
"""Given an argument string this attempts to split it into small parts.""" |
rv = []
for match in re.finditer(r"('([^'\\]*(?:\\.[^'\\]*)*)'"
r'|"([^"\\]*(?:\\.[^"\\]*)*)"'
r'|\S+)\s*', string, re.S):
arg = match.group().strip()
if arg[:1] == arg[-1:] and arg[:1] in '"\'':
arg = arg[1:-1].encode('ascii... |
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def add_argument(self, dest, nargs=1, obj=None):
"""Adds a positional argument named `dest` to the parser. The `obj` can be used to identify the option in the or... |
if obj is None:
obj = dest
self._args.append(Argument(dest=dest, nargs=nargs, obj=obj)) |
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def make_graph(dists, scheme='default'):
"""Makes a dependency graph from the given distributions. :parameter dists: a list of distributions :type dists: list of... |
scheme = get_scheme(scheme)
graph = DependencyGraph()
provided = {} # maps names to lists of (version, dist) tuples
# first, build the graph and find out what's provided
for dist in dists:
graph.add_distribution(dist)
for p in dist.provides:
name, version = parse_name... |
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def make_dist(name, version, **kwargs):
""" A convenience method for making a dist given just a name and version. """ |
summary = kwargs.pop('summary', 'Placeholder for summary')
md = Metadata(**kwargs)
md.name = name
md.version = version
md.summary = summary or 'Placeholder for summary'
return Distribution(md) |
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def clear(self):
""" Clear the cache, setting it to its initial state. """ |
self.name.clear()
self.path.clear()
self.generated = False |
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def _generate_cache(self):
""" Scan the path for distributions and populate the cache with those that are found. """ |
gen_dist = not self._cache.generated
gen_egg = self._include_egg and not self._cache_egg.generated
if gen_dist or gen_egg:
for dist in self._yield_distributions():
if isinstance(dist, InstalledDistribution):
self._cache.add(dist)
e... |
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def get_distribution(self, name):
""" Looks for a named distribution on the path. This function only returns the first result found, as no more than one value is... |
result = None
name = name.lower()
if not self._cache_enabled:
for dist in self._yield_distributions():
if dist.key == name:
result = dist
break
else:
self._generate_cache()
if name in self._cach... |
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def get_file_path(self, name, relative_path):
""" Return the path to a resource file. """ |
dist = self.get_distribution(name)
if dist is None:
raise LookupError('no distribution named %r found' % name)
return dist.get_resource_path(relative_path) |
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def get_exported_entries(self, category, name=None):
""" Return all of the exported entries in a particular category. :param category: The category to search for... |
for dist in self.get_distributions():
r = dist.exports
if category in r:
d = r[category]
if name is not None:
if name in d:
yield d[name]
else:
for v in d.values():
... |
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def get_hash(self, data, hasher=None):
""" Get the hash of some data, using a particular hash algorithm, if specified. :param data: The data to be hashed. :type ... |
if hasher is None:
hasher = self.hasher
if hasher is None:
hasher = hashlib.md5
prefix = ''
else:
hasher = getattr(hashlib, hasher)
prefix = '%s=' % self.hasher
digest = hasher(data).digest()
digest = base64.urlsafe_b64... |
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def read_exports(self):
""" Read exports data from a file in .ini format. :return: A dictionary of exports, mapping an export category to a list of :class:`Expor... |
result = {}
r = self.get_distinfo_resource(EXPORTS_FILENAME)
if r:
with contextlib.closing(r.as_stream()) as stream:
result = read_exports(stream)
return result |
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def write_installed_files(self, paths, prefix, dry_run=False):
""" Writes the ``RECORD`` file, using the ``paths`` iterable passed in. Any existing ``RECORD`` fi... |
prefix = os.path.join(prefix, '')
base = os.path.dirname(self.path)
base_under_prefix = base.startswith(prefix)
base = os.path.join(base, '')
record_path = self.get_distinfo_file('RECORD')
logger.info('creating %s', record_path)
if dry_run:
return Non... |
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def get_distinfo_file(self, path):
""" Returns a path located under the ``.dist-info`` directory. Returns a string representing the path. :parameter path: a ``'/... |
# Check if it is an absolute path # XXX use relpath, add tests
if path.find(os.sep) >= 0:
# it's an absolute path?
distinfo_dirname, path = path.split(os.sep)[-2:]
if distinfo_dirname != self.path.split(os.sep)[-1]:
raise DistlibException(
... |
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def list_distinfo_files(self):
""" Iterates over the ``RECORD`` entries and returns paths for each line if the path is pointing to a file located in the ``.dist-... |
base = os.path.dirname(self.path)
for path, checksum, size in self._get_records():
# XXX add separator or use real relpath algo
if not os.path.isabs(path):
path = os.path.join(base, path)
if path.startswith(self.path):
yield path |
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def list_distinfo_files(self, absolute=False):
""" Iterates over the ``installed-files.txt`` entries and returns paths for each line if the path is pointing to a... |
record_path = os.path.join(self.path, 'installed-files.txt')
if os.path.exists(record_path):
skip = True
with codecs.open(record_path, 'r', encoding='utf-8') as f:
for line in f:
line = line.strip()
if line == './':
... |
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def repr_node(self, dist, level=1):
"""Prints only a subgraph""" |
output = [self._repr_dist(dist)]
for other, label in self.adjacency_list[dist]:
dist = self._repr_dist(other)
if label is not None:
dist = '%s [%s]' % (dist, label)
output.append(' ' * level + str(dist))
suboutput = self.repr_node(other... |
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def encode_unicode(f):
"""Cerberus error messages expect regular binary strings. If unicode is used in a ValidationError message can't be printed. This decorator... |
@wraps(f)
def wrapped(obj, error):
def _encode(value):
"""Helper encoding unicode strings into binary utf-8"""
if isinstance(value, unicode): # noqa: F821
return value.encode('utf-8')
return value
error = copy(error)
error.document_... |
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def add(self, error):
""" Add an error to the tree. :param error: :class:`~cerberus.errors.ValidationError` """ |
if not self._path_of_(error):
self.errors.append(error)
self.errors.sort()
else:
super(ErrorTree, self).add(error) |
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def fetch_errors_from(self, path):
""" Returns all errors for a particular path. :param path: :class:`tuple` of :term:`hashable` s. :rtype: :class:`~cerberus.err... |
node = self.fetch_node_from(path)
if node is not None:
return node.errors
else:
return ErrorList() |
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Description:
def fetch_node_from(self, path):
""" Returns a node for a path. :param path: Tuple of :term:`hashable` s. :rtype: :class:`~cerberus.errors.ErrorTreeNode` or :obj... |
context = self
for key in path:
context = context[key]
if context is None:
break
return context |
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