1756 lines
58 KiB
Python
1756 lines
58 KiB
Python
|
#
|
||
|
|
# Copyright (C) 2012-2017 The Python Software Foundation.
|
||
|
|
# See LICENSE.txt and CONTRIBUTORS.txt.
|
||
|
|
#
|
||
|
|
import codecs
|
||
|
|
from collections import deque
|
||
|
|
import contextlib
|
||
|
|
import csv
|
||
|
|
from glob import iglob as std_iglob
|
||
|
|
import io
|
||
|
|
import json
|
||
|
|
import logging
|
||
|
|
import os
|
||
|
|
import py_compile
|
||
|
|
import re
|
||
|
|
import socket
|
||
|
|
try:
|
||
|
|
import ssl
|
||
|
|
except ImportError: # pragma: no cover
|
||
|
|
ssl = None
|
||
|
|
import subprocess
|
||
|
|
import sys
|
||
|
|
import tarfile
|
||
|
|
import tempfile
|
||
|
|
import textwrap
|
||
|
|
|
||
|
|
try:
|
||
|
|
import threading
|
||
|
|
except ImportError: # pragma: no cover
|
||
|
|
import dummy_threading as threading
|
||
|
|
import time
|
||
|
|
|
||
|
|
from . import DistlibException
|
||
|
|
from .compat import (string_types, text_type, shutil, raw_input, StringIO,
|
||
|
|
cache_from_source, urlopen, urljoin, httplib, xmlrpclib,
|
||
|
|
splittype, HTTPHandler, BaseConfigurator, valid_ident,
|
||
|
|
Container, configparser, URLError, ZipFile, fsdecode,
|
||
|
|
unquote, urlparse)
|
||
|
|
|
||
|
|
logger = logging.getLogger(__name__)
|
||
|
|
|
||
|
|
#
|
||
|
|
# Requirement parsing code as per PEP 508
|
||
|
|
#
|
||
|
|
|
||
|
|
IDENTIFIER = re.compile(r'^([\w\.-]+)\s*')
|
||
|
|
VERSION_IDENTIFIER = re.compile(r'^([\w\.*+-]+)\s*')
|
||
|
|
COMPARE_OP = re.compile(r'^(<=?|>=?|={2,3}|[~!]=)\s*')
|
||
|
|
MARKER_OP = re.compile(r'^((<=?)|(>=?)|={2,3}|[~!]=|in|not\s+in)\s*')
|
||
|
|
OR = re.compile(r'^or\b\s*')
|
||
|
|
AND = re.compile(r'^and\b\s*')
|
||
|
|
NON_SPACE = re.compile(r'(\S+)\s*')
|
||
|
|
STRING_CHUNK = re.compile(r'([\s\w\.{}()*+#:;,/?!~`@$%^&=|<>\[\]-]+)')
|
||
|
|
|
||
|
|
|
||
|
|
def parse_marker(marker_string):
|
||
|
|
"""
|
||
|
|
Parse a marker string and return a dictionary containing a marker expression.
|
||
|
|
|
||
|
|
The dictionary will contain keys "op", "lhs" and "rhs" for non-terminals in
|
||
|
|
the expression grammar, or strings. A string contained in quotes is to be
|
||
|
|
interpreted as a literal string, and a string not contained in quotes is a
|
||
|
|
variable (such as os_name).
|
||
|
|
"""
|
||
|
|
def marker_var(remaining):
|
||
|
|
# either identifier, or literal string
|
||
|
|
m = IDENTIFIER.match(remaining)
|
||
|
|
if m:
|
||
|
|
result = m.groups()[0]
|
||
|
|
remaining = remaining[m.end():]
|
||
|
|
elif not remaining:
|
||
|
|
raise SyntaxError('unexpected end of input')
|
||
|
|
else:
|
||
|
|
q = remaining[0]
|
||
|
|
if q not in '\'"':
|
||
|
|
raise SyntaxError('invalid expression: %s' % remaining)
|
||
|
|
oq = '\'"'.replace(q, '')
|
||
|
|
remaining = remaining[1:]
|
||
|
|
parts = [q]
|
||
|
|
while remaining:
|
||
|
|
# either a string chunk, or oq, or q to terminate
|
||
|
|
if remaining[0] == q:
|
||
|
|
break
|
||
|
|
elif remaining[0] == oq:
|
||
|
|
parts.append(oq)
|
||
|
|
remaining = remaining[1:]
|
||
|
|
else:
|
||
|
|
m = STRING_CHUNK.match(remaining)
|
||
|
|
if not m:
|
||
|
|
raise SyntaxError('error in string literal: %s' % remaining)
|
||
|
|
parts.append(m.groups()[0])
|
||
|
|
remaining = remaining[m.end():]
|
||
|
|
else:
|
||
|
|
s = ''.join(parts)
|
||
|
|
raise SyntaxError('unterminated string: %s' % s)
|
||
|
|
parts.append(q)
|
||
|
|
result = ''.join(parts)
|
||
|
|
remaining = remaining[1:].lstrip() # skip past closing quote
|
||
|
|
return result, remaining
|
||
|
|
|
||
|
|
def marker_expr(remaining):
|
||
|
|
if remaining and remaining[0] == '(':
|
||
|
|
result, remaining = marker(remaining[1:].lstrip())
|
||
|
|
if remaining[0] != ')':
|
||
|
|
raise SyntaxError('unterminated parenthesis: %s' % remaining)
|
||
|
|
remaining = remaining[1:].lstrip()
|
||
|
|
else:
|
||
|
|
lhs, remaining = marker_var(remaining)
|
||
|
|
while remaining:
|
||
|
|
m = MARKER_OP.match(remaining)
|
||
|
|
if not m:
|
||
|
|
break
|
||
|
|
op = m.groups()[0]
|
||
|
|
remaining = remaining[m.end():]
|
||
|
|
rhs, remaining = marker_var(remaining)
|
||
|
|
lhs = {'op': op, 'lhs': lhs, 'rhs': rhs}
|
||
|
|
result = lhs
|
||
|
|
return result, remaining
|
||
|
|
|
||
|
|
def marker_and(remaining):
|
||
|
|
lhs, remaining = marker_expr(remaining)
|
||
|
|
while remaining:
|
||
|
|
m = AND.match(remaining)
|
||
|
|
if not m:
|
||
|
|
break
|
||
|
|
remaining = remaining[m.end():]
|
||
|
|
rhs, remaining = marker_expr(remaining)
|
||
|
|
lhs = {'op': 'and', 'lhs': lhs, 'rhs': rhs}
|
||
|
|
return lhs, remaining
|
||
|
|
|
||
|
|
def marker(remaining):
|
||
|
|
lhs, remaining = marker_and(remaining)
|
||
|
|
while remaining:
|
||
|
|
m = OR.match(remaining)
|
||
|
|
if not m:
|
||
|
|
break
|
||
|
|
remaining = remaining[m.end():]
|
||
|
|
rhs, remaining = marker_and(remaining)
|
||
|
|
lhs = {'op': 'or', 'lhs': lhs, 'rhs': rhs}
|
||
|
|
return lhs, remaining
|
||
|
|
|
||
|
|
return marker(marker_string)
|
||
|
|
|
||
|
|
|
||
|
|
def parse_requirement(req):
|
||
|
|
"""
|
||
|
|
Parse a requirement passed in as a string. Return a Container
|
||
|
|
whose attributes contain the various parts of the requirement.
|
||
|
|
"""
|
||
|
|
remaining = req.strip()
|
||
|
|
if not remaining or remaining.startswith('#'):
|
||
|
|
return None
|
||
|
|
m = IDENTIFIER.match(remaining)
|
||
|
|
if not m:
|
||
|
|
raise SyntaxError('name expected: %s' % remaining)
|
||
|
|
distname = m.groups()[0]
|
||
|
|
remaining = remaining[m.end():]
|
||
|
|
extras = mark_expr = versions = uri = None
|
||
|
|
if remaining and remaining[0] == '[':
|
||
|
|
i = remaining.find(']', 1)
|
||
|
|
if i < 0:
|
||
|
|
raise SyntaxError('unterminated extra: %s' % remaining)
|
||
|
|
s = remaining[1:i]
|
||
|
|
remaining = remaining[i + 1:].lstrip()
|
||
|
|
extras = []
|
||
|
|
while s:
|
||
|
|
m = IDENTIFIER.match(s)
|
||
|
|
if not m:
|
||
|
|
raise SyntaxError('malformed extra: %s' % s)
|
||
|
|
extras.append(m.groups()[0])
|
||
|
|
s = s[m.end():]
|
||
|
|
if not s:
|
||
|
|
break
|
||
|
|
if s[0] != ',':
|
||
|
|
raise SyntaxError('comma expected in extras: %s' % s)
|
||
|
|
s = s[1:].lstrip()
|
||
|
|
if not extras:
|
||
|
|
extras = None
|
||
|
|
if remaining:
|
||
|
|
if remaining[0] == '@':
|
||
|
|
# it's a URI
|
||
|
|
remaining = remaining[1:].lstrip()
|
||
|
|
m = NON_SPACE.match(remaining)
|
||
|
|
if not m:
|
||
|
|
raise SyntaxError('invalid URI: %s' % remaining)
|
||
|
|
uri = m.groups()[0]
|
||
|
|
t = urlparse(uri)
|
||
|
|
# there are issues with Python and URL parsing, so this test
|
||
|
|
# is a bit crude. See bpo-20271, bpo-23505. Python doesn't
|
||
|
|
# always parse invalid URLs correctly - it should raise
|
||
|
|
# exceptions for malformed URLs
|
||
|
|
if not (t.scheme and t.netloc):
|
||
|
|
raise SyntaxError('Invalid URL: %s' % uri)
|
||
|
|
remaining = remaining[m.end():].lstrip()
|
||
|
|
else:
|
||
|
|
|
||
|
|
def get_versions(ver_remaining):
|
||
|
|
"""
|
||
|
|
Return a list of operator, version tuples if any are
|
||
|
|
specified, else None.
|
||
|
|
"""
|
||
|
|
m = COMPARE_OP.match(ver_remaining)
|
||
|
|
versions = None
|
||
|
|
if m:
|
||
|
|
versions = []
|
||
|
|
while True:
|
||
|
|
op = m.groups()[0]
|
||
|
|
ver_remaining = ver_remaining[m.end():]
|
||
|
|
m = VERSION_IDENTIFIER.match(ver_remaining)
|
||
|
|
if not m:
|
||
|
|
raise SyntaxError('invalid version: %s' % ver_remaining)
|
||
|
|
v = m.groups()[0]
|
||
|
|
versions.append((op, v))
|
||
|
|
ver_remaining = ver_remaining[m.end():]
|
||
|
|
if not ver_remaining or ver_remaining[0] != ',':
|
||
|
|
break
|
||
|
|
ver_remaining = ver_remaining[1:].lstrip()
|
||
|
|
m = COMPARE_OP.match(ver_remaining)
|
||
|
|
if not m:
|
||
|
|
raise SyntaxError('invalid constraint: %s' % ver_remaining)
|
||
|
|
if not versions:
|
||
|
|
versions = None
|
||
|
|
return versions, ver_remaining
|
||
|
|
|
||
|
|
if remaining[0] != '(':
|
||
|
|
versions, remaining = get_versions(remaining)
|
||
|
|
else:
|
||
|
|
i = remaining.find(')', 1)
|
||
|
|
if i < 0:
|
||
|
|
raise SyntaxError('unterminated parenthesis: %s' % remaining)
|
||
|
|
s = remaining[1:i]
|
||
|
|
remaining = remaining[i + 1:].lstrip()
|
||
|
|
# As a special diversion from PEP 508, allow a version number
|
||
|
|
# a.b.c in parentheses as a synonym for ~= a.b.c (because this
|
||
|
|
# is allowed in earlier PEPs)
|
||
|
|
if COMPARE_OP.match(s):
|
||
|
|
versions, _ = get_versions(s)
|
||
|
|
else:
|
||
|
|
m = VERSION_IDENTIFIER.match(s)
|
||
|
|
if not m:
|
||
|
|
raise SyntaxError('invalid constraint: %s' % s)
|
||
|
|
v = m.groups()[0]
|
||
|
|
s = s[m.end():].lstrip()
|
||
|
|
if s:
|
||
|
|
raise SyntaxError('invalid constraint: %s' % s)
|
||
|
|
versions = [('~=', v)]
|
||
|
|
|
||
|
|
if remaining:
|
||
|
|
if remaining[0] != ';':
|
||
|
|
raise SyntaxError('invalid requirement: %s' % remaining)
|
||
|
|
remaining = remaining[1:].lstrip()
|
||
|
|
|
||
|
|
mark_expr, remaining = parse_marker(remaining)
|
||
|
|
|
||
|
|
if remaining and remaining[0] != '#':
|
||
|
|
raise SyntaxError('unexpected trailing data: %s' % remaining)
|
||
|
|
|
||
|
|
if not versions:
|
||
|
|
rs = distname
|
||
|
|
else:
|
||
|
|
rs = '%s %s' % (distname, ', '.join(['%s %s' % con for con in versions]))
|
||
|
|
return Container(name=distname, extras=extras, constraints=versions,
|
||
|
|
marker=mark_expr, url=uri, requirement=rs)
|
||
|
|
|
||
|
|
|
||
|
|
def get_resources_dests(resources_root, rules):
|
||
|
|
"""Find destinations for resources files"""
|
||
|
|
|
||
|
|
def get_rel_path(root, path):
|
||
|
|
# normalizes and returns a lstripped-/-separated path
|
||
|
|
root = root.replace(os.path.sep, '/')
|
||
|
|
path = path.replace(os.path.sep, '/')
|
||
|
|
assert path.startswith(root)
|
||
|
|
return path[len(root):].lstrip('/')
|
||
|
|
|
||
|
|
destinations = {}
|
||
|
|
for base, suffix, dest in rules:
|
||
|
|
prefix = os.path.join(resources_root, base)
|
||
|
|
for abs_base in iglob(prefix):
|
||
|
|
abs_glob = os.path.join(abs_base, suffix)
|
||
|
|
for abs_path in iglob(abs_glob):
|
||
|
|
resource_file = get_rel_path(resources_root, abs_path)
|
||
|
|
if dest is None: # remove the entry if it was here
|
||
|
|
destinations.pop(resource_file, None)
|
||
|
|
else:
|
||
|
|
rel_path = get_rel_path(abs_base, abs_path)
|
||
|
|
rel_dest = dest.replace(os.path.sep, '/').rstrip('/')
|
||
|
|
destinations[resource_file] = rel_dest + '/' + rel_path
|
||
|
|
return destinations
|
||
|
|
|
||
|
|
|
||
|
|
def in_venv():
|
||
|
|
if hasattr(sys, 'real_prefix'):
|
||
|
|
# virtualenv venvs
|
||
|
|
result = True
|
||
|
|
else:
|
||
|
|
# PEP 405 venvs
|
||
|
|
result = sys.prefix != getattr(sys, 'base_prefix', sys.prefix)
|
||
|
|
return result
|
||
|
|
|
||
|
|
|
||
|
|
def get_executable():
|
||
|
|
# The __PYVENV_LAUNCHER__ dance is apparently no longer needed, as
|
||
|
|
# changes to the stub launcher mean that sys.executable always points
|
||
|
|
# to the stub on OS X
|
||
|
|
# if sys.platform == 'darwin' and ('__PYVENV_LAUNCHER__'
|
||
|
|
# in os.environ):
|
||
|
|
# result = os.environ['__PYVENV_LAUNCHER__']
|
||
|
|
# else:
|
||
|
|
# result = sys.executable
|
||
|
|
# return result
|
||
|
|
result = os.path.normcase(sys.executable)
|
||
|
|
if not isinstance(result, text_type):
|
||
|
|
result = fsdecode(result)
|
||
|
|
return result
|
||
|
|
|
||
|
|
|
||
|
|
def proceed(prompt, allowed_chars, error_prompt=None, default=None):
|
||
|
|
p = prompt
|
||
|
|
while True:
|
||
|
|
s = raw_input(p)
|
||
|
|
p = prompt
|
||
|
|
if not s and default:
|
||
|
|
s = default
|
||
|
|
if s:
|
||
|
|
c = s[0].lower()
|
||
|
|
if c in allowed_chars:
|
||
|
|
break
|
||
|
|
if error_prompt:
|
||
|
|
p = '%c: %s\n%s' % (c, error_prompt, prompt)
|
||
|
|
return c
|
||
|
|
|
||
|
|
|
||
|
|
def extract_by_key(d, keys):
|
||
|
|
if isinstance(keys, string_types):
|
||
|
|
keys = keys.split()
|
||
|
|
result = {}
|
||
|
|
for key in keys:
|
||
|
|
if key in d:
|
||
|
|
result[key] = d[key]
|
||
|
|
return result
|
||
|
|
|
||
|
|
def read_exports(stream):
|
||
|
|
if sys.version_info[0] >= 3:
|
||
|
|
# needs to be a text stream
|
||
|
|
stream = codecs.getreader('utf-8')(stream)
|
||
|
|
# Try to load as JSON, falling back on legacy format
|
||
|
|
data = stream.read()
|
||
|
|
stream = StringIO(data)
|
||
|
|
try:
|
||
|
|
jdata = json.load(stream)
|
||
|
|
result = jdata['extensions']['python.exports']['exports']
|
||
|
|
for group, entries in result.items():
|
||
|
|
for k, v in entries.items():
|
||
|
|
s = '%s = %s' % (k, v)
|
||
|
|
entry = get_export_entry(s)
|
||
|
|
assert entry is not None
|
||
|
|
entries[k] = entry
|
||
|
|
return result
|
||
|
|
except Exception:
|
||
|
|
stream.seek(0, 0)
|
||
|
|
|
||
|
|
def read_stream(cp, stream):
|
||
|
|
if hasattr(cp, 'read_file'):
|
||
|
|
cp.read_file(stream)
|
||
|
|
else:
|
||
|
|
cp.readfp(stream)
|
||
|
|
|
||
|
|
cp = configparser.ConfigParser()
|
||
|
|
try:
|
||
|
|
read_stream(cp, stream)
|
||
|
|
except configparser.MissingSectionHeaderError:
|
||
|
|
stream.close()
|
||
|
|
data = textwrap.dedent(data)
|
||
|
|
stream = StringIO(data)
|
||
|
|
read_stream(cp, stream)
|
||
|
|
|
||
|
|
result = {}
|
||
|
|
for key in cp.sections():
|
||
|
|
result[key] = entries = {}
|
||
|
|
for name, value in cp.items(key):
|
||
|
|
s = '%s = %s' % (name, value)
|
||
|
|
entry = get_export_entry(s)
|
||
|
|
assert entry is not None
|
||
|
|
#entry.dist = self
|
||
|
|
entries[name] = entry
|
||
|
|
return result
|
||
|
|
|
||
|
|
|
||
|
|
def write_exports(exports, stream):
|
||
|
|
if sys.version_info[0] >= 3:
|
||
|
|
# needs to be a text stream
|
||
|
|
stream = codecs.getwriter('utf-8')(stream)
|
||
|
|
cp = configparser.ConfigParser()
|
||
|
|
for k, v in exports.items():
|
||
|
|
# TODO check k, v for valid values
|
||
|
|
cp.add_section(k)
|
||
|
|
for entry in v.values():
|
||
|
|
if entry.suffix is None:
|
||
|
|
s = entry.prefix
|
||
|
|
else:
|
||
|
|
s = '%s:%s' % (entry.prefix, entry.suffix)
|
||
|
|
if entry.flags:
|
||
|
|
s = '%s [%s]' % (s, ', '.join(entry.flags))
|
||
|
|
cp.set(k, entry.name, s)
|
||
|
|
cp.write(stream)
|
||
|
|
|
||
|
|
|
||
|
|
@contextlib.contextmanager
|
||
|
|
def tempdir():
|
||
|
|
td = tempfile.mkdtemp()
|
||
|
|
try:
|
||
|
|
yield td
|
||
|
|
finally:
|
||
|
|
shutil.rmtree(td)
|
||
|
|
|
||
|
|
@contextlib.contextmanager
|
||
|
|
def chdir(d):
|
||
|
|
cwd = os.getcwd()
|
||
|
|
try:
|
||
|
|
os.chdir(d)
|
||
|
|
yield
|
||
|
|
finally:
|
||
|
|
os.chdir(cwd)
|
||
|
|
|
||
|
|
|
||
|
|
@contextlib.contextmanager
|
||
|
|
def socket_timeout(seconds=15):
|
||
|
|
cto = socket.getdefaulttimeout()
|
||
|
|
try:
|
||
|
|
socket.setdefaulttimeout(seconds)
|
||
|
|
yield
|
||
|
|
finally:
|
||
|
|
socket.setdefaulttimeout(cto)
|
||
|
|
|
||
|
|
|
||
|
|
class cached_property(object):
|
||
|
|
def __init__(self, func):
|
||
|
|
self.func = func
|
||
|
|
#for attr in ('__name__', '__module__', '__doc__'):
|
||
|
|
# setattr(self, attr, getattr(func, attr, None))
|
||
|
|
|
||
|
|
def __get__(self, obj, cls=None):
|
||
|
|
if obj is None:
|
||
|
|
return self
|
||
|
|
value = self.func(obj)
|
||
|
|
object.__setattr__(obj, self.func.__name__, value)
|
||
|
|
#obj.__dict__[self.func.__name__] = value = self.func(obj)
|
||
|
|
return value
|
||
|
|
|
||
|
|
def convert_path(pathname):
|
||
|
|
"""Return 'pathname' as a name that will work on the native filesystem.
|
||
|
|
|
||
|
|
The path is split on '/' and put back together again using the current
|
||
|
|
directory separator. Needed because filenames in the setup script are
|
||
|
|
always supplied in Unix style, and have to be converted to the local
|
||
|
|
convention before we can actually use them in the filesystem. Raises
|
||
|
|
ValueError on non-Unix-ish systems if 'pathname' either starts or
|
||
|
|
ends with a slash.
|
||
|
|
"""
|
||
|
|
if os.sep == '/':
|
||
|
|
return pathname
|
||
|
|
if not pathname:
|
||
|
|
return pathname
|
||
|
|
if pathname[0] == '/':
|
||
|
|
raise ValueError("path '%s' cannot be absolute" % pathname)
|
||
|
|
if pathname[-1] == '/':
|
||
|
|
raise ValueError("path '%s' cannot end with '/'" % pathname)
|
||
|
|
|
||
|
|
paths = pathname.split('/')
|
||
|
|
while os.curdir in paths:
|
||
|
|
paths.remove(os.curdir)
|
||
|
|
if not paths:
|
||
|
|
return os.curdir
|
||
|
|
return os.path.join(*paths)
|
||
|
|
|
||
|
|
|
||
|
|
class FileOperator(object):
|
||
|
|
def __init__(self, dry_run=False):
|
||
|
|
self.dry_run = dry_run
|
||
|
|
self.ensured = set()
|
||
|
|
self._init_record()
|
||
|
|
|
||
|
|
def _init_record(self):
|
||
|
|
self.record = False
|
||
|
|
self.files_written = set()
|
||
|
|
self.dirs_created = set()
|
||
|
|
|
||
|
|
def record_as_written(self, path):
|
||
|
|
if self.record:
|
||
|
|
self.files_written.add(path)
|
||
|
|
|
||
|
|
def newer(self, source, target):
|
||
|
|
"""Tell if the target is newer than the source.
|
||
|
|
|
||
|
|
Returns true if 'source' exists and is more recently modified than
|
||
|
|
'target', or if 'source' exists and 'target' doesn't.
|
||
|
|
|
||
|
|
Returns false if both exist and 'target' is the same age or younger
|
||
|
|
than 'source'. Raise PackagingFileError if 'source' does not exist.
|
||
|
|
|
||
|
|
Note that this test is not very accurate: files created in the same
|
||
|
|
second will have the same "age".
|
||
|
|
"""
|
||
|
|
if not os.path.exists(source):
|
||
|
|
raise DistlibException("file '%r' does not exist" %
|
||
|
|
os.path.abspath(source))
|
||
|
|
if not os.path.exists(target):
|
||
|
|
return True
|
||
|
|
|
||
|
|
return os.stat(source).st_mtime > os.stat(target).st_mtime
|
||
|
|
|
||
|
|
def copy_file(self, infile, outfile, check=True):
|
||
|
|
"""Copy a file respecting dry-run and force flags.
|
||
|
|
"""
|
||
|
|
self.ensure_dir(os.path.dirname(outfile))
|
||
|
|
logger.info('Copying %s to %s', infile, outfile)
|
||
|
|
if not self.dry_run:
|
||
|
|
msg = None
|
||
|
|
if check:
|
||
|
|
if os.path.islink(outfile):
|
||
|
|
msg = '%s is a symlink' % outfile
|
||
|
|
elif os.path.exists(outfile) and not os.path.isfile(outfile):
|
||
|
|
msg = '%s is a non-regular file' % outfile
|
||
|
|
if msg:
|
||
|
|
raise ValueError(msg + ' which would be overwritten')
|
||
|
|
shutil.copyfile(infile, outfile)
|
||
|
|
self.record_as_written(outfile)
|
||
|
|
|
||
|
|
def copy_stream(self, instream, outfile, encoding=None):
|
||
|
|
assert not os.path.isdir(outfile)
|
||
|
|
self.ensure_dir(os.path.dirname(outfile))
|
||
|
|
logger.info('Copying stream %s to %s', instream, outfile)
|
||
|
|
if not self.dry_run:
|
||
|
|
if encoding is None:
|
||
|
|
outstream = open(outfile, 'wb')
|
||
|
|
else:
|
||
|
|
outstream = codecs.open(outfile, 'w', encoding=encoding)
|
||
|
|
try:
|
||
|
|
shutil.copyfileobj(instream, outstream)
|
||
|
|
finally:
|
||
|
|
outstream.close()
|
||
|
|
self.record_as_written(outfile)
|
||
|
|
|
||
|
|
def write_binary_file(self, path, data):
|
||
|
|
self.ensure_dir(os.path.dirname(path))
|
||
|
|
if not self.dry_run:
|
||
|
|
with open(path, 'wb') as f:
|
||
|
|
f.write(data)
|
||
|
|
self.record_as_written(path)
|
||
|
|
|
||
|
|
def write_text_file(self, path, data, encoding):
|
||
|
|
self.ensure_dir(os.path.dirname(path))
|
||
|
|
if not self.dry_run:
|
||
|
|
with open(path, 'wb') as f:
|
||
|
|
f.write(data.encode(encoding))
|
||
|
|
self.record_as_written(path)
|
||
|
|
|
||
|
|
def set_mode(self, bits, mask, files):
|
||
|
|
if os.name == 'posix' or (os.name == 'java' and os._name == 'posix'):
|
||
|
|
# Set the executable bits (owner, group, and world) on
|
||
|
|
# all the files specified.
|
||
|
|
for f in files:
|
||
|
|
if self.dry_run:
|
||
|
|
logger.info("changing mode of %s", f)
|
||
|
|
else:
|
||
|
|
mode = (os.stat(f).st_mode | bits) & mask
|
||
|
|
logger.info("changing mode of %s to %o", f, mode)
|
||
|
|
os.chmod(f, mode)
|
||
|
|
|
||
|
|
set_executable_mode = lambda s, f: s.set_mode(0o555, 0o7777, f)
|
||
|
|
|
||
|
|
def ensure_dir(self, path):
|
||
|
|
path = os.path.abspath(path)
|
||
|
|
if path not in self.ensured and not os.path.exists(path):
|
||
|
|
self.ensured.add(path)
|
||
|
|
d, f = os.path.split(path)
|
||
|
|
self.ensure_dir(d)
|
||
|
|
logger.info('Creating %s' % path)
|
||
|
|
if not self.dry_run:
|
||
|
|
os.mkdir(path)
|
||
|
|
if self.record:
|
||
|
|
self.dirs_created.add(path)
|
||
|
|
|
||
|
|
def byte_compile(self, path, optimize=False, force=False, prefix=None):
|
||
|
|
dpath = cache_from_source(path, not optimize)
|
||
|
|
logger.info('Byte-compiling %s to %s', path, dpath)
|
||
|
|
if not self.dry_run:
|
||
|
|
if force or self.newer(path, dpath):
|
||
|
|
if not prefix:
|
||
|
|
diagpath = None
|
||
|
|
else:
|
||
|
|
assert path.startswith(prefix)
|
||
|
|
diagpath = path[len(prefix):]
|
||
|
|
py_compile.compile(path, dpath, diagpath, True) # raise error
|
||
|
|
self.record_as_written(dpath)
|
||
|
|
return dpath
|
||
|
|
|
||
|
|
def ensure_removed(self, path):
|
||
|
|
if os.path.exists(path):
|
||
|
|
if os.path.isdir(path) and not os.path.islink(path):
|
||
|
|
logger.debug('Removing directory tree at %s', path)
|
||
|
|
if not self.dry_run:
|
||
|
|
shutil.rmtree(path)
|
||
|
|
if self.record:
|
||
|
|
if path in self.dirs_created:
|
||
|
|
self.dirs_created.remove(path)
|
||
|
|
else:
|
||
|
|
if os.path.islink(path):
|
||
|
|
s = 'link'
|
||
|
|
else:
|
||
|
|
s = 'file'
|
||
|
|
logger.debug('Removing %s %s', s, path)
|
||
|
|
if not self.dry_run:
|
||
|
|
os.remove(path)
|
||
|
|
if self.record:
|
||
|
|
if path in self.files_written:
|
||
|
|
self.files_written.remove(path)
|
||
|
|
|
||
|
|
def is_writable(self, path):
|
||
|
|
result = False
|
||
|
|
while not result:
|
||
|
|
if os.path.exists(path):
|
||
|
|
result = os.access(path, os.W_OK)
|
||
|
|
break
|
||
|
|
parent = os.path.dirname(path)
|
||
|
|
if parent == path:
|
||
|
|
break
|
||
|
|
path = parent
|
||
|
|
return result
|
||
|
|
|
||
|
|
def commit(self):
|
||
|
|
"""
|
||
|
|
Commit recorded changes, turn off recording, return
|
||
|
|
changes.
|
||
|
|
"""
|
||
|
|
assert self.record
|
||
|
|
result = self.files_written, self.dirs_created
|
||
|
|
self._init_record()
|
||
|
|
return result
|
||
|
|
|
||
|
|
def rollback(self):
|
||
|
|
if not self.dry_run:
|
||
|
|
for f in list(self.files_written):
|
||
|
|
if os.path.exists(f):
|
||
|
|
os.remove(f)
|
||
|
|
# dirs should all be empty now, except perhaps for
|
||
|
|
# __pycache__ subdirs
|
||
|
|
# reverse so that subdirs appear before their parents
|
||
|
|
dirs = sorted(self.dirs_created, reverse=True)
|
||
|
|
for d in dirs:
|
||
|
|
flist = os.listdir(d)
|
||
|
|
if flist:
|
||
|
|
assert flist == ['__pycache__']
|
||
|
|
sd = os.path.join(d, flist[0])
|
||
|
|
os.rmdir(sd)
|
||
|
|
os.rmdir(d) # should fail if non-empty
|
||
|
|
self._init_record()
|
||
|
|
|
||
|
|
def resolve(module_name, dotted_path):
|
||
|
|
if module_name in sys.modules:
|
||
|
|
mod = sys.modules[module_name]
|
||
|
|
else:
|
||
|
|
mod = __import__(module_name)
|
||
|
|
if dotted_path is None:
|
||
|
|
result = mod
|
||
|
|
else:
|
||
|
|
parts = dotted_path.split('.')
|
||
|
|
result = getattr(mod, parts.pop(0))
|
||
|
|
for p in parts:
|
||
|
|
result = getattr(result, p)
|
||
|
|
return result
|
||
|
|
|
||
|
|
|
||
|
|
class ExportEntry(object):
|
||
|
|
def __init__(self, name, prefix, suffix, flags):
|
||
|
|
self.name = name
|
||
|
|
self.prefix = prefix
|
||
|
|
self.suffix = suffix
|
||
|
|
self.flags = flags
|
||
|
|
|
||
|
|
@cached_property
|
||
|
|
def value(self):
|
||
|
|
return resolve(self.prefix, self.suffix)
|
||
|
|
|
||
|
|
def __repr__(self): # pragma: no cover
|
||
|
|
return '<ExportEntry %s = %s:%s %s>' % (self.name, self.prefix,
|
||
|
|
self.suffix, self.flags)
|
||
|
|
|
||
|
|
def __eq__(self, other):
|
||
|
|
if not isinstance(other, ExportEntry):
|
||
|
|
result = False
|
||
|
|
else:
|
||
|
|
result = (self.name == other.name and
|
||
|
|
self.prefix == other.prefix and
|
||
|
|
self.suffix == other.suffix and
|
||
|
|
self.flags == other.flags)
|
||
|
|
return result
|
||
|
|
|
||
|
|
__hash__ = object.__hash__
|
||
|
|
|
||
|
|
|
||
|
|
ENTRY_RE = re.compile(r'''(?P<name>(\w|[-.+])+)
|
||
|
|
\s*=\s*(?P<callable>(\w+)([:\.]\w+)*)
|
||
|
|
\s*(\[\s*(?P<flags>\w+(=\w+)?(,\s*\w+(=\w+)?)*)\s*\])?
|
||
|
|
''', re.VERBOSE)
|
||
|
|
|
||
|
|
def get_export_entry(specification):
|
||
|
|
m = ENTRY_RE.search(specification)
|
||
|
|
if not m:
|
||
|
|
result = None
|
||
|
|
if '[' in specification or ']' in specification:
|
||
|
|
raise DistlibException("Invalid specification "
|
||
|
|
"'%s'" % specification)
|
||
|
|
else:
|
||
|
|
d = m.groupdict()
|
||
|
|
name = d['name']
|
||
|
|
path = d['callable']
|
||
|
|
colons = path.count(':')
|
||
|
|
if colons == 0:
|
||
|
|
prefix, suffix = path, None
|
||
|
|
else:
|
||
|
|
if colons != 1:
|
||
|
|
raise DistlibException("Invalid specification "
|
||
|
|
"'%s'" % specification)
|
||
|
|
prefix, suffix = path.split(':')
|
||
|
|
flags = d['flags']
|
||
|
|
if flags is None:
|
||
|
|
if '[' in specification or ']' in specification:
|
||
|
|
raise DistlibException("Invalid specification "
|
||
|
|
"'%s'" % specification)
|
||
|
|
flags = []
|
||
|
|
else:
|
||
|
|
flags = [f.strip() for f in flags.split(',')]
|
||
|
|
result = ExportEntry(name, prefix, suffix, flags)
|
||
|
|
return result
|
||
|
|
|
||
|
|
|
||
|
|
def get_cache_base(suffix=None):
|
||
|
|
"""
|
||
|
|
Return the default base location for distlib caches. If the directory does
|
||
|
|
not exist, it is created. Use the suffix provided for the base directory,
|
||
|
|
and default to '.distlib' if it isn't provided.
|
||
|
|
|
||
|
|
On Windows, if LOCALAPPDATA is defined in the environment, then it is
|
||
|
|
assumed to be a directory, and will be the parent directory of the result.
|
||
|
|
On POSIX, and on Windows if LOCALAPPDATA is not defined, the user's home
|
||
|
|
directory - using os.expanduser('~') - will be the parent directory of
|
||
|
|
the result.
|
||
|
|
|
||
|
|
The result is just the directory '.distlib' in the parent directory as
|
||
|
|
determined above, or with the name specified with ``suffix``.
|
||
|
|
"""
|
||
|
|
if suffix is None:
|
||
|
|
suffix = '.distlib'
|
||
|
|
if os.name == 'nt' and 'LOCALAPPDATA' in os.environ:
|
||
|
|
result = os.path.expandvars('$localappdata')
|
||
|
|
else:
|
||
|
|
# Assume posix, or old Windows
|
||
|
|
result = os.path.expanduser('~')
|
||
|
|
# we use 'isdir' instead of 'exists', because we want to
|
||
|
|
# fail if there's a file with that name
|
||
|
|
if os.path.isdir(result):
|
||
|
|
usable = os.access(result, os.W_OK)
|
||
|
|
if not usable:
|
||
|
|
logger.warning('Directory exists but is not writable: %s', result)
|
||
|
|
else:
|
||
|
|
try:
|
||
|
|
os.makedirs(result)
|
||
|
|
usable = True
|
||
|
|
except OSError:
|
||
|
|
logger.warning('Unable to create %s', result, exc_info=True)
|
||
|
|
usable = False
|
||
|
|
if not usable:
|
||
|
|
result = tempfile.mkdtemp()
|
||
|
|
logger.warning('Default location unusable, using %s', result)
|
||
|
|
return os.path.join(result, suffix)
|
||
|
|
|
||
|
|
|
||
|
|
def path_to_cache_dir(path):
|
||
|
|
"""
|
||
|
|
Convert an absolute path to a directory name for use in a cache.
|
||
|
|
|
||
|
|
The algorithm used is:
|
||
|
|
|
||
|
|
#. On Windows, any ``':'`` in the drive is replaced with ``'---'``.
|
||
|
|
#. Any occurrence of ``os.sep`` is replaced with ``'--'``.
|
||
|
|
#. ``'.cache'`` is appended.
|
||
|
|
"""
|
||
|
|
d, p = os.path.splitdrive(os.path.abspath(path))
|
||
|
|
if d:
|
||
|
|
d = d.replace(':', '---')
|
||
|
|
p = p.replace(os.sep, '--')
|
||
|
|
return d + p + '.cache'
|
||
|
|
|
||
|
|
|
||
|
|
def ensure_slash(s):
|
||
|
|
if not s.endswith('/'):
|
||
|
|
return s + '/'
|
||
|
|
return s
|
||
|
|
|
||
|
|
|
||
|
|
def parse_credentials(netloc):
|
||
|
|
username = password = None
|
||
|
|
if '@' in netloc:
|
||
|
|
prefix, netloc = netloc.split('@', 1)
|
||
|
|
if ':' not in prefix:
|
||
|
|
username = prefix
|
||
|
|
else:
|
||
|
|
username, password = prefix.split(':', 1)
|
||
|
|
return username, password, netloc
|
||
|
|
|
||
|
|
|
||
|
|
def get_process_umask():
|
||
|
|
result = os.umask(0o22)
|
||
|
|
os.umask(result)
|
||
|
|
return result
|
||
|
|
|
||
|
|
def is_string_sequence(seq):
|
||
|
|
result = True
|
||
|
|
i = None
|
||
|
|
for i, s in enumerate(seq):
|
||
|
|
if not isinstance(s, string_types):
|
||
|
|
result = False
|
||
|
|
break
|
||
|
|
assert i is not None
|
||
|
|
return result
|
||
|
|
|
||
|
|
PROJECT_NAME_AND_VERSION = re.compile('([a-z0-9_]+([.-][a-z_][a-z0-9_]*)*)-'
|
||
|
|
'([a-z0-9_.+-]+)', re.I)
|
||
|
|
PYTHON_VERSION = re.compile(r'-py(\d\.?\d?)')
|
||
|
|
|
||
|
|
|
||
|
|
def split_filename(filename, project_name=None):
|
||
|
|
"""
|
||
|
|
Extract name, version, python version from a filename (no extension)
|
||
|
|
|
||
|
|
Return name, version, pyver or None
|
||
|
|
"""
|
||
|
|
result = None
|
||
|
|
pyver = None
|
||
|
|
filename = unquote(filename).replace(' ', '-')
|
||
|
|
m = PYTHON_VERSION.search(filename)
|
||
|
|
if m:
|
||
|
|
pyver = m.group(1)
|
||
|
|
filename = filename[:m.start()]
|
||
|
|
if project_name and len(filename) > len(project_name) + 1:
|
||
|
|
m = re.match(re.escape(project_name) + r'\b', filename)
|
||
|
|
if m:
|
||
|
|
n = m.end()
|
||
|
|
result = filename[:n], filename[n + 1:], pyver
|
||
|
|
if result is None:
|
||
|
|
m = PROJECT_NAME_AND_VERSION.match(filename)
|
||
|
|
if m:
|
||
|
|
result = m.group(1), m.group(3), pyver
|
||
|
|
return result
|
||
|
|
|
||
|
|
# Allow spaces in name because of legacy dists like "Twisted Core"
|
||
|
|
NAME_VERSION_RE = re.compile(r'(?P<name>[\w .-]+)\s*'
|
||
|
|
r'\(\s*(?P<ver>[^\s)]+)\)$')
|
||
|
|
|
||
|
|
def parse_name_and_version(p):
|
||
|
|
"""
|
||
|
|
A utility method used to get name and version from a string.
|
||
|
|
|
||
|
|
From e.g. a Provides-Dist value.
|
||
|
|
|
||
|
|
:param p: A value in a form 'foo (1.0)'
|
||
|
|
:return: The name and version as a tuple.
|
||
|
|
"""
|
||
|
|
m = NAME_VERSION_RE.match(p)
|
||
|
|
if not m:
|
||
|
|
raise DistlibException('Ill-formed name/version string: \'%s\'' % p)
|
||
|
|
d = m.groupdict()
|
||
|
|
return d['name'].strip().lower(), d['ver']
|
||
|
|
|
||
|
|
def get_extras(requested, available):
|
||
|
|
result = set()
|
||
|
|
requested = set(requested or [])
|
||
|
|
available = set(available or [])
|
||
|
|
if '*' in requested:
|
||
|
|
requested.remove('*')
|
||
|
|
result |= available
|
||
|
|
for r in requested:
|
||
|
|
if r == '-':
|
||
|
|
result.add(r)
|
||
|
|
elif r.startswith('-'):
|
||
|
|
unwanted = r[1:]
|
||
|
|
if unwanted not in available:
|
||
|
|
logger.warning('undeclared extra: %s' % unwanted)
|
||
|
|
if unwanted in result:
|
||
|
|
result.remove(unwanted)
|
||
|
|
else:
|
||
|
|
if r not in available:
|
||
|
|
logger.warning('undeclared extra: %s' % r)
|
||
|
|
result.add(r)
|
||
|
|
return result
|
||
|
|
#
|
||
|
|
# Extended metadata functionality
|
||
|
|
#
|
||
|
|
|
||
|
|
def _get_external_data(url):
|
||
|
|
result = {}
|
||
|
|
try:
|
||
|
|
# urlopen might fail if it runs into redirections,
|
||
|
|
# because of Python issue #13696. Fixed in locators
|
||
|
|
# using a custom redirect handler.
|
||
|
|
resp = urlopen(url)
|
||
|
|
headers = resp.info()
|
||
|
|
ct = headers.get('Content-Type')
|
||
|
|
if not ct.startswith('application/json'):
|
||
|
|
logger.debug('Unexpected response for JSON request: %s', ct)
|
||
|
|
else:
|
||
|
|
reader = codecs.getreader('utf-8')(resp)
|
||
|
|
#data = reader.read().decode('utf-8')
|
||
|
|
#result = json.loads(data)
|
||
|
|
result = json.load(reader)
|
||
|
|
except Exception as e:
|
||
|
|
logger.exception('Failed to get external data for %s: %s', url, e)
|
||
|
|
return result
|
||
|
|
|
||
|
|
_external_data_base_url = 'https://www.red-dove.com/pypi/projects/'
|
||
|
|
|
||
|
|
def get_project_data(name):
|
||
|
|
url = '%s/%s/project.json' % (name[0].upper(), name)
|
||
|
|
url = urljoin(_external_data_base_url, url)
|
||
|
|
result = _get_external_data(url)
|
||
|
|
return result
|
||
|
|
|
||
|
|
def get_package_data(name, version):
|
||
|
|
url = '%s/%s/package-%s.json' % (name[0].upper(), name, version)
|
||
|
|
url = urljoin(_external_data_base_url, url)
|
||
|
|
return _get_external_data(url)
|
||
|
|
|
||
|
|
|
||
|
|
class Cache(object):
|
||
|
|
"""
|
||
|
|
A class implementing a cache for resources that need to live in the file system
|
||
|
|
e.g. shared libraries. This class was moved from resources to here because it
|
||
|
|
could be used by other modules, e.g. the wheel module.
|
||
|
|
"""
|
||
|
|
|
||
|
|
def __init__(self, base):
|
||
|
|
"""
|
||
|
|
Initialise an instance.
|
||
|
|
|
||
|
|
:param base: The base directory where the cache should be located.
|
||
|
|
"""
|
||
|
|
# we use 'isdir' instead of 'exists', because we want to
|
||
|
|
# fail if there's a file with that name
|
||
|
|
if not os.path.isdir(base): # pragma: no cover
|
||
|
|
os.makedirs(base)
|
||
|
|
if (os.stat(base).st_mode & 0o77) != 0:
|
||
|
|
logger.warning('Directory \'%s\' is not private', base)
|
||
|
|
self.base = os.path.abspath(os.path.normpath(base))
|
||
|
|
|
||
|
|
def prefix_to_dir(self, prefix):
|
||
|
|
"""
|
||
|
|
Converts a resource prefix to a directory name in the cache.
|
||
|
|
"""
|
||
|
|
return path_to_cache_dir(prefix)
|
||
|
|
|
||
|
|
def clear(self):
|
||
|
|
"""
|
||
|
|
Clear the cache.
|
||
|
|
"""
|
||
|
|
not_removed = []
|
||
|
|
for fn in os.listdir(self.base):
|
||
|
|
fn = os.path.join(self.base, fn)
|
||
|
|
try:
|
||
|
|
if os.path.islink(fn) or os.path.isfile(fn):
|
||
|
|
os.remove(fn)
|
||
|
|
elif os.path.isdir(fn):
|
||
|
|
shutil.rmtree(fn)
|
||
|
|
except Exception:
|
||
|
|
not_removed.append(fn)
|
||
|
|
return not_removed
|
||
|
|
|
||
|
|
|
||
|
|
class EventMixin(object):
|
||
|
|
"""
|
||
|
|
A very simple publish/subscribe system.
|
||
|
|
"""
|
||
|
|
def __init__(self):
|
||
|
|
self._subscribers = {}
|
||
|
|
|
||
|
|
def add(self, event, subscriber, append=True):
|
||
|
|
"""
|
||
|
|
Add a subscriber for an event.
|
||
|
|
|
||
|
|
:param event: The name of an event.
|
||
|
|
:param subscriber: The subscriber to be added (and called when the
|
||
|
|
event is published).
|
||
|
|
:param append: Whether to append or prepend the subscriber to an
|
||
|
|
existing subscriber list for the event.
|
||
|
|
"""
|
||
|
|
subs = self._subscribers
|
||
|
|
if event not in subs:
|
||
|
|
subs[event] = deque([subscriber])
|
||
|
|
else:
|
||
|
|
sq = subs[event]
|
||
|
|
if append:
|
||
|
|
sq.append(subscriber)
|
||
|
|
else:
|
||
|
|
sq.appendleft(subscriber)
|
||
|
|
|
||
|
|
def remove(self, event, subscriber):
|
||
|
|
"""
|
||
|
|
Remove a subscriber for an event.
|
||
|
|
|
||
|
|
:param event: The name of an event.
|
||
|
|
:param subscriber: The subscriber to be removed.
|
||
|
|
"""
|
||
|
|
subs = self._subscribers
|
||
|
|
if event not in subs:
|
||
|
|
raise ValueError('No subscribers: %r' % event)
|
||
|
|
subs[event].remove(subscriber)
|
||
|
|
|
||
|
|
def get_subscribers(self, event):
|
||
|
|
"""
|
||
|
|
Return an iterator for the subscribers for an event.
|
||
|
|
:param event: The event to return subscribers for.
|
||
|
|
"""
|
||
|
|
return iter(self._subscribers.get(event, ()))
|
||
|
|
|
||
|
|
def publish(self, event, *args, **kwargs):
|
||
|
|
"""
|
||
|
|
Publish a event and return a list of values returned by its
|
||
|
|
subscribers.
|
||
|
|
|
||
|
|
:param event: The event to publish.
|
||
|
|
:param args: The positional arguments to pass to the event's
|
||
|
|
subscribers.
|
||
|
|
:param kwargs: The keyword arguments to pass to the event's
|
||
|
|
subscribers.
|
||
|
|
"""
|
||
|
|
result = []
|
||
|
|
for subscriber in self.get_subscribers(event):
|
||
|
|
try:
|
||
|
|
value = subscriber(event, *args, **kwargs)
|
||
|
|
except Exception:
|
||
|
|
logger.exception('Exception during event publication')
|
||
|
|
value = None
|
||
|
|
result.append(value)
|
||
|
|
logger.debug('publish %s: args = %s, kwargs = %s, result = %s',
|
||
|
|
event, args, kwargs, result)
|
||
|
|
return result
|
||
|
|
|
||
|
|
#
|
||
|
|
# Simple sequencing
|
||
|
|
#
|
||
|
|
class Sequencer(object):
|
||
|
|
def __init__(self):
|
||
|
|
self._preds = {}
|
||
|
|
self._succs = {}
|
||
|
|
self._nodes = set() # nodes with no preds/succs
|
||
|
|
|
||
|
|
def add_node(self, node):
|
||
|
|
self._nodes.add(node)
|
||
|
|
|
||
|
|
def remove_node(self, node, edges=False):
|
||
|
|
if node in self._nodes:
|
||
|
|
self._nodes.remove(node)
|
||
|
|
if edges:
|
||
|
|
for p in set(self._preds.get(node, ())):
|
||
|
|
self.remove(p, node)
|
||
|
|
for s in set(self._succs.get(node, ())):
|
||
|
|
self.remove(node, s)
|
||
|
|
# Remove empties
|
||
|
|
for k, v in list(self._preds.items()):
|
||
|
|
if not v:
|
||
|
|
del self._preds[k]
|
||
|
|
for k, v in list(self._succs.items()):
|
||
|
|
if not v:
|
||
|
|
del self._succs[k]
|
||
|
|
|
||
|
|
def add(self, pred, succ):
|
||
|
|
assert pred != succ
|
||
|
|
self._preds.setdefault(succ, set()).add(pred)
|
||
|
|
self._succs.setdefault(pred, set()).add(succ)
|
||
|
|
|
||
|
|
def remove(self, pred, succ):
|
||
|
|
assert pred != succ
|
||
|
|
try:
|
||
|
|
preds = self._preds[succ]
|
||
|
|
succs = self._succs[pred]
|
||
|
|
except KeyError: # pragma: no cover
|
||
|
|
raise ValueError('%r not a successor of anything' % succ)
|
||
|
|
try:
|
||
|
|
preds.remove(pred)
|
||
|
|
succs.remove(succ)
|
||
|
|
except KeyError: # pragma: no cover
|
||
|
|
raise ValueError('%r not a successor of %r' % (succ, pred))
|
||
|
|
|
||
|
|
def is_step(self, step):
|
||
|
|
return (step in self._preds or step in self._succs or
|
||
|
|
step in self._nodes)
|
||
|
|
|
||
|
|
def get_steps(self, final):
|
||
|
|
if not self.is_step(final):
|
||
|
|
raise ValueError('Unknown: %r' % final)
|
||
|
|
result = []
|
||
|
|
todo = []
|
||
|
|
seen = set()
|
||
|
|
todo.append(final)
|
||
|
|
while todo:
|
||
|
|
step = todo.pop(0)
|
||
|
|
if step in seen:
|
||
|
|
# if a step was already seen,
|
||
|
|
# move it to the end (so it will appear earlier
|
||
|
|
# when reversed on return) ... but not for the
|
||
|
|
# final step, as that would be confusing for
|
||
|
|
# users
|
||
|
|
if step != final:
|
||
|
|
result.remove(step)
|
||
|
|
result.append(step)
|
||
|
|
else:
|
||
|
|
seen.add(step)
|
||
|
|
result.append(step)
|
||
|
|
preds = self._preds.get(step, ())
|
||
|
|
todo.extend(preds)
|
||
|
|
return reversed(result)
|
||
|
|
|
||
|
|
@property
|
||
|
|
def strong_connections(self):
|
||
|
|
#http://en.wikipedia.org/wiki/Tarjan%27s_strongly_connected_components_algorithm
|
||
|
|
index_counter = [0]
|
||
|
|
stack = []
|
||
|
|
lowlinks = {}
|
||
|
|
index = {}
|
||
|
|
result = []
|
||
|
|
|
||
|
|
graph = self._succs
|
||
|
|
|
||
|
|
def strongconnect(node):
|
||
|
|
# set the depth index for this node to the smallest unused index
|
||
|
|
index[node] = index_counter[0]
|
||
|
|
lowlinks[node] = index_counter[0]
|
||
|
|
index_counter[0] += 1
|
||
|
|
stack.append(node)
|
||
|
|
|
||
|
|
# Consider successors
|
||
|
|
try:
|
||
|
|
successors = graph[node]
|
||
|
|
except Exception:
|
||
|
|
successors = []
|
||
|
|
for successor in successors:
|
||
|
|
if successor not in lowlinks:
|
||
|
|
# Successor has not yet been visited
|
||
|
|
strongconnect(successor)
|
||
|
|
lowlinks[node] = min(lowlinks[node],lowlinks[successor])
|
||
|
|
elif successor in stack:
|
||
|
|
# the successor is in the stack and hence in the current
|
||
|
|
# strongly connected component (SCC)
|
||
|
|
lowlinks[node] = min(lowlinks[node],index[successor])
|
||
|
|
|
||
|
|
# If `node` is a root node, pop the stack and generate an SCC
|
||
|
|
if lowlinks[node] == index[node]:
|
||
|
|
connected_component = []
|
||
|
|
|
||
|
|
while True:
|
||
|
|
successor = stack.pop()
|
||
|
|
connected_component.append(successor)
|
||
|
|
if successor == node: break
|
||
|
|
component = tuple(connected_component)
|
||
|
|
# storing the result
|
||
|
|
result.append(component)
|
||
|
|
|
||
|
|
for node in graph:
|
||
|
|
if node not in lowlinks:
|
||
|
|
strongconnect(node)
|
||
|
|
|
||
|
|
return result
|
||
|
|
|
||
|
|
@property
|
||
|
|
def dot(self):
|
||
|
|
result = ['digraph G {']
|
||
|
|
for succ in self._preds:
|
||
|
|
preds = self._preds[succ]
|
||
|
|
for pred in preds:
|
||
|
|
result.append(' %s -> %s;' % (pred, succ))
|
||
|
|
for node in self._nodes:
|
||
|
|
result.append(' %s;' % node)
|
||
|
|
result.append('}')
|
||
|
|
return '\n'.join(result)
|
||
|
|
|
||
|
|
#
|
||
|
|
# Unarchiving functionality for zip, tar, tgz, tbz, whl
|
||
|
|
#
|
||
|
|
|
||
|
|
ARCHIVE_EXTENSIONS = ('.tar.gz', '.tar.bz2', '.tar', '.zip',
|
||
|
|
'.tgz', '.tbz', '.whl')
|
||
|
|
|
||
|
|
def unarchive(archive_filename, dest_dir, format=None, check=True):
|
||
|
|
|
||
|
|
def check_path(path):
|
||
|
|
if not isinstance(path, text_type):
|
||
|
|
path = path.decode('utf-8')
|
||
|
|
p = os.path.abspath(os.path.join(dest_dir, path))
|
||
|
|
if not p.startswith(dest_dir) or p[plen] != os.sep:
|
||
|
|
raise ValueError('path outside destination: %r' % p)
|
||
|
|
|
||
|
|
dest_dir = os.path.abspath(dest_dir)
|
||
|
|
plen = len(dest_dir)
|
||
|
|
archive = None
|
||
|
|
if format is None:
|
||
|
|
if archive_filename.endswith(('.zip', '.whl')):
|
||
|
|
format = 'zip'
|
||
|
|
elif archive_filename.endswith(('.tar.gz', '.tgz')):
|
||
|
|
format = 'tgz'
|
||
|
|
mode = 'r:gz'
|
||
|
|
elif archive_filename.endswith(('.tar.bz2', '.tbz')):
|
||
|
|
format = 'tbz'
|
||
|
|
mode = 'r:bz2'
|
||
|
|
elif archive_filename.endswith('.tar'):
|
||
|
|
format = 'tar'
|
||
|
|
mode = 'r'
|
||
|
|
else: # pragma: no cover
|
||
|
|
raise ValueError('Unknown format for %r' % archive_filename)
|
||
|
|
try:
|
||
|
|
if format == 'zip':
|
||
|
|
archive = ZipFile(archive_filename, 'r')
|
||
|
|
if check:
|
||
|
|
names = archive.namelist()
|
||
|
|
for name in names:
|
||
|
|
check_path(name)
|
||
|
|
else:
|
||
|
|
archive = tarfile.open(archive_filename, mode)
|
||
|
|
if check:
|
||
|
|
names = archive.getnames()
|
||
|
|
for name in names:
|
||
|
|
check_path(name)
|
||
|
|
if format != 'zip' and sys.version_info[0] < 3:
|
||
|
|
# See Python issue 17153. If the dest path contains Unicode,
|
||
|
|
# tarfile extraction fails on Python 2.x if a member path name
|
||
|
|
# contains non-ASCII characters - it leads to an implicit
|
||
|
|
# bytes -> unicode conversion using ASCII to decode.
|
||
|
|
for tarinfo in archive.getmembers():
|
||
|
|
if not isinstance(tarinfo.name, text_type):
|
||
|
|
tarinfo.name = tarinfo.name.decode('utf-8')
|
||
|
|
archive.extractall(dest_dir)
|
||
|
|
|
||
|
|
finally:
|
||
|
|
if archive:
|
||
|
|
archive.close()
|
||
|
|
|
||
|
|
|
||
|
|
def zip_dir(directory):
|
||
|
|
"""zip a directory tree into a BytesIO object"""
|
||
|
|
result = io.BytesIO()
|
||
|
|
dlen = len(directory)
|
||
|
|
with ZipFile(result, "w") as zf:
|
||
|
|
for root, dirs, files in os.walk(directory):
|
||
|
|
for name in files:
|
||
|
|
full = os.path.join(root, name)
|
||
|
|
rel = root[dlen:]
|
||
|
|
dest = os.path.join(rel, name)
|
||
|
|
zf.write(full, dest)
|
||
|
|
return result
|
||
|
|
|
||
|
|
#
|
||
|
|
# Simple progress bar
|
||
|
|
#
|
||
|
|
|
||
|
|
UNITS = ('', 'K', 'M', 'G','T','P')
|
||
|
|
|
||
|
|
|
||
|
|
class Progress(object):
|
||
|
|
unknown = 'UNKNOWN'
|
||
|
|
|
||
|
|
def __init__(self, minval=0, maxval=100):
|
||
|
|
assert maxval is None or maxval >= minval
|
||
|
|
self.min = self.cur = minval
|
||
|
|
self.max = maxval
|
||
|
|
self.started = None
|
||
|
|
self.elapsed = 0
|
||
|
|
self.done = False
|
||
|
|
|
||
|
|
def update(self, curval):
|
||
|
|
assert self.min <= curval
|
||
|
|
assert self.max is None or curval <= self.max
|
||
|
|
self.cur = curval
|
||
|
|
now = time.time()
|
||
|
|
if self.started is None:
|
||
|
|
self.started = now
|
||
|
|
else:
|
||
|
|
self.elapsed = now - self.started
|
||
|
|
|
||
|
|
def increment(self, incr):
|
||
|
|
assert incr >= 0
|
||
|
|
self.update(self.cur + incr)
|
||
|
|
|
||
|
|
def start(self):
|
||
|
|
self.update(self.min)
|
||
|
|
return self
|
||
|
|
|
||
|
|
def stop(self):
|
||
|
|
if self.max is not None:
|
||
|
|
self.update(self.max)
|
||
|
|
self.done = True
|
||
|
|
|
||
|
|
@property
|
||
|
|
def maximum(self):
|
||
|
|
return self.unknown if self.max is None else self.max
|
||
|
|
|
||
|
|
@property
|
||
|
|
def percentage(self):
|
||
|
|
if self.done:
|
||
|
|
result = '100 %'
|
||
|
|
elif self.max is None:
|
||
|
|
result = ' ?? %'
|
||
|
|
else:
|
||
|
|
v = 100.0 * (self.cur - self.min) / (self.max - self.min)
|
||
|
|
result = '%3d %%' % v
|
||
|
|
return result
|
||
|
|
|
||
|
|
def format_duration(self, duration):
|
||
|
|
if (duration <= 0) and self.max is None or self.cur == self.min:
|
||
|
|
result = '??:??:??'
|
||
|
|
#elif duration < 1:
|
||
|
|
# result = '--:--:--'
|
||
|
|
else:
|
||
|
|
result = time.strftime('%H:%M:%S', time.gmtime(duration))
|
||
|
|
return result
|
||
|
|
|
||
|
|
@property
|
||
|
|
def ETA(self):
|
||
|
|
if self.done:
|
||
|
|
prefix = 'Done'
|
||
|
|
t = self.elapsed
|
||
|
|
#import pdb; pdb.set_trace()
|
||
|
|
else:
|
||
|
|
prefix = 'ETA '
|
||
|
|
if self.max is None:
|
||
|
|
t = -1
|
||
|
|
elif self.elapsed == 0 or (self.cur == self.min):
|
||
|
|
t = 0
|
||
|
|
else:
|
||
|
|
#import pdb; pdb.set_trace()
|
||
|
|
t = float(self.max - self.min)
|
||
|
|
t /= self.cur - self.min
|
||
|
|
t = (t - 1) * self.elapsed
|
||
|
|
return '%s: %s' % (prefix, self.format_duration(t))
|
||
|
|
|
||
|
|
@property
|
||
|
|
def speed(self):
|
||
|
|
if self.elapsed == 0:
|
||
|
|
result = 0.0
|
||
|
|
else:
|
||
|
|
result = (self.cur - self.min) / self.elapsed
|
||
|
|
for unit in UNITS:
|
||
|
|
if result < 1000:
|
||
|
|
break
|
||
|
|
result /= 1000.0
|
||
|
|
return '%d %sB/s' % (result, unit)
|
||
|
|
|
||
|
|
#
|
||
|
|
# Glob functionality
|
||
|
|
#
|
||
|
|
|
||
|
|
RICH_GLOB = re.compile(r'\{([^}]*)\}')
|
||
|
|
_CHECK_RECURSIVE_GLOB = re.compile(r'[^/\\,{]\*\*|\*\*[^/\\,}]')
|
||
|
|
_CHECK_MISMATCH_SET = re.compile(r'^[^{]*\}|\{[^}]*$')
|
||
|
|
|
||
|
|
|
||
|
|
def iglob(path_glob):
|
||
|
|
"""Extended globbing function that supports ** and {opt1,opt2,opt3}."""
|
||
|
|
if _CHECK_RECURSIVE_GLOB.search(path_glob):
|
||
|
|
msg = """invalid glob %r: recursive glob "**" must be used alone"""
|
||
|
|
raise ValueError(msg % path_glob)
|
||
|
|
if _CHECK_MISMATCH_SET.search(path_glob):
|
||
|
|
msg = """invalid glob %r: mismatching set marker '{' or '}'"""
|
||
|
|
raise ValueError(msg % path_glob)
|
||
|
|
return _iglob(path_glob)
|
||
|
|
|
||
|
|
|
||
|
|
def _iglob(path_glob):
|
||
|
|
rich_path_glob = RICH_GLOB.split(path_glob, 1)
|
||
|
|
if len(rich_path_glob) > 1:
|
||
|
|
assert len(rich_path_glob) == 3, rich_path_glob
|
||
|
|
prefix, set, suffix = rich_path_glob
|
||
|
|
for item in set.split(','):
|
||
|
|
for path in _iglob(''.join((prefix, item, suffix))):
|
||
|
|
yield path
|
||
|
|
else:
|
||
|
|
if '**' not in path_glob:
|
||
|
|
for item in std_iglob(path_glob):
|
||
|
|
yield item
|
||
|
|
else:
|
||
|
|
prefix, radical = path_glob.split('**', 1)
|
||
|
|
if prefix == '':
|
||
|
|
prefix = '.'
|
||
|
|
if radical == '':
|
||
|
|
radical = '*'
|
||
|
|
else:
|
||
|
|
# we support both
|
||
|
|
radical = radical.lstrip('/')
|
||
|
|
radical = radical.lstrip('\\')
|
||
|
|
for path, dir, files in os.walk(prefix):
|
||
|
|
path = os.path.normpath(path)
|
||
|
|
for fn in _iglob(os.path.join(path, radical)):
|
||
|
|
yield fn
|
||
|
|
|
||
|
|
if ssl:
|
||
|
|
from .compat import (HTTPSHandler as BaseHTTPSHandler, match_hostname,
|
||
|
|
CertificateError)
|
||
|
|
|
||
|
|
|
||
|
|
#
|
||
|
|
# HTTPSConnection which verifies certificates/matches domains
|
||
|
|
#
|
||
|
|
|
||
|
|
class HTTPSConnection(httplib.HTTPSConnection):
|
||
|
|
ca_certs = None # set this to the path to the certs file (.pem)
|
||
|
|
check_domain = True # only used if ca_certs is not None
|
||
|
|
|
||
|
|
# noinspection PyPropertyAccess
|
||
|
|
def connect(self):
|
||
|
|
sock = socket.create_connection((self.host, self.port), self.timeout)
|
||
|
|
if getattr(self, '_tunnel_host', False):
|
||
|
|
self.sock = sock
|
||
|
|
self._tunnel()
|
||
|
|
|
||
|
|
if not hasattr(ssl, 'SSLContext'):
|
||
|
|
# For 2.x
|
||
|
|
if self.ca_certs:
|
||
|
|
cert_reqs = ssl.CERT_REQUIRED
|
||
|
|
else:
|
||
|
|
cert_reqs = ssl.CERT_NONE
|
||
|
|
self.sock = ssl.wrap_socket(sock, self.key_file, self.cert_file,
|
||
|
|
cert_reqs=cert_reqs,
|
||
|
|
ssl_version=ssl.PROTOCOL_SSLv23,
|
||
|
|
ca_certs=self.ca_certs)
|
||
|
|
else: # pragma: no cover
|
||
|
|
context = ssl.SSLContext(ssl.PROTOCOL_SSLv23)
|
||
|
|
context.options |= ssl.OP_NO_SSLv2
|
||
|
|
if self.cert_file:
|
||
|
|
context.load_cert_chain(self.cert_file, self.key_file)
|
||
|
|
kwargs = {}
|
||
|
|
if self.ca_certs:
|
||
|
|
context.verify_mode = ssl.CERT_REQUIRED
|
||
|
|
context.load_verify_locations(cafile=self.ca_certs)
|
||
|
|
if getattr(ssl, 'HAS_SNI', False):
|
||
|
|
kwargs['server_hostname'] = self.host
|
||
|
|
self.sock = context.wrap_socket(sock, **kwargs)
|
||
|
|
if self.ca_certs and self.check_domain:
|
||
|
|
try:
|
||
|
|
match_hostname(self.sock.getpeercert(), self.host)
|
||
|
|
logger.debug('Host verified: %s', self.host)
|
||
|
|
except CertificateError: # pragma: no cover
|
||
|
|
self.sock.shutdown(socket.SHUT_RDWR)
|
||
|
|
self.sock.close()
|
||
|
|
raise
|
||
|
|
|
||
|
|
class HTTPSHandler(BaseHTTPSHandler):
|
||
|
|
def __init__(self, ca_certs, check_domain=True):
|
||
|
|
BaseHTTPSHandler.__init__(self)
|
||
|
|
self.ca_certs = ca_certs
|
||
|
|
self.check_domain = check_domain
|
||
|
|
|
||
|
|
def _conn_maker(self, *args, **kwargs):
|
||
|
|
"""
|
||
|
|
This is called to create a connection instance. Normally you'd
|
||
|
|
pass a connection class to do_open, but it doesn't actually check for
|
||
|
|
a class, and just expects a callable. As long as we behave just as a
|
||
|
|
constructor would have, we should be OK. If it ever changes so that
|
||
|
|
we *must* pass a class, we'll create an UnsafeHTTPSConnection class
|
||
|
|
which just sets check_domain to False in the class definition, and
|
||
|
|
choose which one to pass to do_open.
|
||
|
|
"""
|
||
|
|
result = HTTPSConnection(*args, **kwargs)
|
||
|
|
if self.ca_certs:
|
||
|
|
result.ca_certs = self.ca_certs
|
||
|
|
result.check_domain = self.check_domain
|
||
|
|
return result
|
||
|
|
|
||
|
|
def https_open(self, req):
|
||
|
|
try:
|
||
|
|
return self.do_open(self._conn_maker, req)
|
||
|
|
except URLError as e:
|
||
|
|
if 'certificate verify failed' in str(e.reason):
|
||
|
|
raise CertificateError('Unable to verify server certificate '
|
||
|
|
'for %s' % req.host)
|
||
|
|
else:
|
||
|
|
raise
|
||
|
|
|
||
|
|
#
|
||
|
|
# To prevent against mixing HTTP traffic with HTTPS (examples: A Man-In-The-
|
||
|
|
# Middle proxy using HTTP listens on port 443, or an index mistakenly serves
|
||
|
|
# HTML containing a http://xyz link when it should be https://xyz),
|
||
|
|
# you can use the following handler class, which does not allow HTTP traffic.
|
||
|
|
#
|
||
|
|
# It works by inheriting from HTTPHandler - so build_opener won't add a
|
||
|
|
# handler for HTTP itself.
|
||
|
|
#
|
||
|
|
class HTTPSOnlyHandler(HTTPSHandler, HTTPHandler):
|
||
|
|
def http_open(self, req):
|
||
|
|
raise URLError('Unexpected HTTP request on what should be a secure '
|
||
|
|
'connection: %s' % req)
|
||
|
|
|
||
|
|
#
|
||
|
|
# XML-RPC with timeouts
|
||
|
|
#
|
||
|
|
|
||
|
|
_ver_info = sys.version_info[:2]
|
||
|
|
|
||
|
|
if _ver_info == (2, 6):
|
||
|
|
class HTTP(httplib.HTTP):
|
||
|
|
def __init__(self, host='', port=None, **kwargs):
|
||
|
|
if port == 0: # 0 means use port 0, not the default port
|
||
|
|
port = None
|
||
|
|
self._setup(self._connection_class(host, port, **kwargs))
|
||
|
|
|
||
|
|
|
||
|
|
if ssl:
|
||
|
|
class HTTPS(httplib.HTTPS):
|
||
|
|
def __init__(self, host='', port=None, **kwargs):
|
||
|
|
if port == 0: # 0 means use port 0, not the default port
|
||
|
|
port = None
|
||
|
|
self._setup(self._connection_class(host, port, **kwargs))
|
||
|
|
|
||
|
|
|
||
|
|
class Transport(xmlrpclib.Transport):
|
||
|
|
def __init__(self, timeout, use_datetime=0):
|
||
|
|
self.timeout = timeout
|
||
|
|
xmlrpclib.Transport.__init__(self, use_datetime)
|
||
|
|
|
||
|
|
def make_connection(self, host):
|
||
|
|
h, eh, x509 = self.get_host_info(host)
|
||
|
|
if _ver_info == (2, 6):
|
||
|
|
result = HTTP(h, timeout=self.timeout)
|
||
|
|
else:
|
||
|
|
if not self._connection or host != self._connection[0]:
|
||
|
|
self._extra_headers = eh
|
||
|
|
self._connection = host, httplib.HTTPConnection(h)
|
||
|
|
result = self._connection[1]
|
||
|
|
return result
|
||
|
|
|
||
|
|
if ssl:
|
||
|
|
class SafeTransport(xmlrpclib.SafeTransport):
|
||
|
|
def __init__(self, timeout, use_datetime=0):
|
||
|
|
self.timeout = timeout
|
||
|
|
xmlrpclib.SafeTransport.__init__(self, use_datetime)
|
||
|
|
|
||
|
|
def make_connection(self, host):
|
||
|
|
h, eh, kwargs = self.get_host_info(host)
|
||
|
|
if not kwargs:
|
||
|
|
kwargs = {}
|
||
|
|
kwargs['timeout'] = self.timeout
|
||
|
|
if _ver_info == (2, 6):
|
||
|
|
result = HTTPS(host, None, **kwargs)
|
||
|
|
else:
|
||
|
|
if not self._connection or host != self._connection[0]:
|
||
|
|
self._extra_headers = eh
|
||
|
|
self._connection = host, httplib.HTTPSConnection(h, None,
|
||
|
|
**kwargs)
|
||
|
|
result = self._connection[1]
|
||
|
|
return result
|
||
|
|
|
||
|
|
|
||
|
|
class ServerProxy(xmlrpclib.ServerProxy):
|
||
|
|
def __init__(self, uri, **kwargs):
|
||
|
|
self.timeout = timeout = kwargs.pop('timeout', None)
|
||
|
|
# The above classes only come into play if a timeout
|
||
|
|
# is specified
|
||
|
|
if timeout is not None:
|
||
|
|
scheme, _ = splittype(uri)
|
||
|
|
use_datetime = kwargs.get('use_datetime', 0)
|
||
|
|
if scheme == 'https':
|
||
|
|
tcls = SafeTransport
|
||
|
|
else:
|
||
|
|
tcls = Transport
|
||
|
|
kwargs['transport'] = t = tcls(timeout, use_datetime=use_datetime)
|
||
|
|
self.transport = t
|
||
|
|
xmlrpclib.ServerProxy.__init__(self, uri, **kwargs)
|
||
|
|
|
||
|
|
#
|
||
|
|
# CSV functionality. This is provided because on 2.x, the csv module can't
|
||
|
|
# handle Unicode. However, we need to deal with Unicode in e.g. RECORD files.
|
||
|
|
#
|
||
|
|
|
||
|
|
def _csv_open(fn, mode, **kwargs):
|
||
|
|
if sys.version_info[0] < 3:
|
||
|
|
mode += 'b'
|
||
|
|
else:
|
||
|
|
kwargs['newline'] = ''
|
||
|
|
# Python 3 determines encoding from locale. Force 'utf-8'
|
||
|
|
# file encoding to match other forced utf-8 encoding
|
||
|
|
kwargs['encoding'] = 'utf-8'
|
||
|
|
return open(fn, mode, **kwargs)
|
||
|
|
|
||
|
|
|
||
|
|
class CSVBase(object):
|
||
|
|
defaults = {
|
||
|
|
'delimiter': str(','), # The strs are used because we need native
|
||
|
|
'quotechar': str('"'), # str in the csv API (2.x won't take
|
||
|
|
'lineterminator': str('\n') # Unicode)
|
||
|
|
}
|
||
|
|
|
||
|
|
def __enter__(self):
|
||
|
|
return self
|
||
|
|
|
||
|
|
def __exit__(self, *exc_info):
|
||
|
|
self.stream.close()
|
||
|
|
|
||
|
|
|
||
|
|
class CSVReader(CSVBase):
|
||
|
|
def __init__(self, **kwargs):
|
||
|
|
if 'stream' in kwargs:
|
||
|
|
stream = kwargs['stream']
|
||
|
|
if sys.version_info[0] >= 3:
|
||
|
|
# needs to be a text stream
|
||
|
|
stream = codecs.getreader('utf-8')(stream)
|
||
|
|
self.stream = stream
|
||
|
|
else:
|
||
|
|
self.stream = _csv_open(kwargs['path'], 'r')
|
||
|
|
self.reader = csv.reader(self.stream, **self.defaults)
|
||
|
|
|
||
|
|
def __iter__(self):
|
||
|
|
return self
|
||
|
|
|
||
|
|
def next(self):
|
||
|
|
result = next(self.reader)
|
||
|
|
if sys.version_info[0] < 3:
|
||
|
|
for i, item in enumerate(result):
|
||
|
|
if not isinstance(item, text_type):
|
||
|
|
result[i] = item.decode('utf-8')
|
||
|
|
return result
|
||
|
|
|
||
|
|
__next__ = next
|
||
|
|
|
||
|
|
class CSVWriter(CSVBase):
|
||
|
|
def __init__(self, fn, **kwargs):
|
||
|
|
self.stream = _csv_open(fn, 'w')
|
||
|
|
self.writer = csv.writer(self.stream, **self.defaults)
|
||
|
|
|
||
|
|
def writerow(self, row):
|
||
|
|
if sys.version_info[0] < 3:
|
||
|
|
r = []
|
||
|
|
for item in row:
|
||
|
|
if isinstance(item, text_type):
|
||
|
|
item = item.encode('utf-8')
|
||
|
|
r.append(item)
|
||
|
|
row = r
|
||
|
|
self.writer.writerow(row)
|
||
|
|
|
||
|
|
#
|
||
|
|
# Configurator functionality
|
||
|
|
#
|
||
|
|
|
||
|
|
class Configurator(BaseConfigurator):
|
||
|
|
|
||
|
|
value_converters = dict(BaseConfigurator.value_converters)
|
||
|
|
value_converters['inc'] = 'inc_convert'
|
||
|
|
|
||
|
|
def __init__(self, config, base=None):
|
||
|
|
super(Configurator, self).__init__(config)
|
||
|
|
self.base = base or os.getcwd()
|
||
|
|
|
||
|
|
def configure_custom(self, config):
|
||
|
|
def convert(o):
|
||
|
|
if isinstance(o, (list, tuple)):
|
||
|
|
result = type(o)([convert(i) for i in o])
|
||
|
|
elif isinstance(o, dict):
|
||
|
|
if '()' in o:
|
||
|
|
result = self.configure_custom(o)
|
||
|
|
else:
|
||
|
|
result = {}
|
||
|
|
for k in o:
|
||
|
|
result[k] = convert(o[k])
|
||
|
|
else:
|
||
|
|
result = self.convert(o)
|
||
|
|
return result
|
||
|
|
|
||
|
|
c = config.pop('()')
|
||
|
|
if not callable(c):
|
||
|
|
c = self.resolve(c)
|
||
|
|
props = config.pop('.', None)
|
||
|
|
# Check for valid identifiers
|
||
|
|
args = config.pop('[]', ())
|
||
|
|
if args:
|
||
|
|
args = tuple([convert(o) for o in args])
|
||
|
|
items = [(k, convert(config[k])) for k in config if valid_ident(k)]
|
||
|
|
kwargs = dict(items)
|
||
|
|
result = c(*args, **kwargs)
|
||
|
|
if props:
|
||
|
|
for n, v in props.items():
|
||
|
|
setattr(result, n, convert(v))
|
||
|
|
return result
|
||
|
|
|
||
|
|
def __getitem__(self, key):
|
||
|
|
result = self.config[key]
|
||
|
|
if isinstance(result, dict) and '()' in result:
|
||
|
|
self.config[key] = result = self.configure_custom(result)
|
||
|
|
return result
|
||
|
|
|
||
|
|
def inc_convert(self, value):
|
||
|
|
"""Default converter for the inc:// protocol."""
|
||
|
|
if not os.path.isabs(value):
|
||
|
|
value = os.path.join(self.base, value)
|
||
|
|
with codecs.open(value, 'r', encoding='utf-8') as f:
|
||
|
|
result = json.load(f)
|
||
|
|
return result
|
||
|
|
|
||
|
|
|
||
|
|
class SubprocessMixin(object):
|
||
|
|
"""
|
||
|
|
Mixin for running subprocesses and capturing their output
|
||
|
|
"""
|
||
|
|
def __init__(self, verbose=False, progress=None):
|
||
|
|
self.verbose = verbose
|
||
|
|
self.progress = progress
|
||
|
|
|
||
|
|
def reader(self, stream, context):
|
||
|
|
"""
|
||
|
|
Read lines from a subprocess' output stream and either pass to a progress
|
||
|
|
callable (if specified) or write progress information to sys.stderr.
|
||
|
|
"""
|
||
|
|
progress = self.progress
|
||
|
|
verbose = self.verbose
|
||
|
|
while True:
|
||
|
|
s = stream.readline()
|
||
|
|
if not s:
|
||
|
|
break
|
||
|
|
if progress is not None:
|
||
|
|
progress(s, context)
|
||
|
|
else:
|
||
|
|
if not verbose:
|
||
|
|
sys.stderr.write('.')
|
||
|
|
else:
|
||
|
|
sys.stderr.write(s.decode('utf-8'))
|
||
|
|
sys.stderr.flush()
|
||
|
|
stream.close()
|
||
|
|
|
||
|
|
def run_command(self, cmd, **kwargs):
|
||
|
|
p = subprocess.Popen(cmd, stdout=subprocess.PIPE,
|
||
|
|
stderr=subprocess.PIPE, **kwargs)
|
||
|
|
t1 = threading.Thread(target=self.reader, args=(p.stdout, 'stdout'))
|
||
|
|
t1.start()
|
||
|
|
t2 = threading.Thread(target=self.reader, args=(p.stderr, 'stderr'))
|
||
|
|
t2.start()
|
||
|
|
p.wait()
|
||
|
|
t1.join()
|
||
|
|
t2.join()
|
||
|
|
if self.progress is not None:
|
||
|
|
self.progress('done.', 'main')
|
||
|
|
elif self.verbose:
|
||
|
|
sys.stderr.write('done.\n')
|
||
|
|
return p
|
||
|
|
|
||
|
|
|
||
|
|
def normalize_name(name):
|
||
|
|
"""Normalize a python package name a la PEP 503"""
|
||
|
|
# https://www.python.org/dev/peps/pep-0503/#normalized-names
|
||
|
|
return re.sub('[-_.]+', '-', name).lower()
|