mirror of
https://github.com/python/cpython.git
synced 2025-11-03 19:34:08 +00:00
1450 lines
49 KiB
Python
1450 lines
49 KiB
Python
"""packaging.util
|
|
Miscellaneous utility functions.
|
|
"""
|
|
import errno
|
|
import csv
|
|
import hashlib
|
|
import os
|
|
import sys
|
|
import re
|
|
import shutil
|
|
import string
|
|
import tarfile
|
|
import zipfile
|
|
import posixpath
|
|
import sysconfig
|
|
import subprocess
|
|
from copy import copy
|
|
from glob import iglob as std_iglob
|
|
from fnmatch import fnmatchcase
|
|
from inspect import getsource
|
|
from configparser import RawConfigParser
|
|
|
|
from packaging import logger
|
|
from packaging.errors import (PackagingPlatformError, PackagingFileError,
|
|
PackagingByteCompileError, PackagingExecError,
|
|
InstallationException, PackagingInternalError)
|
|
|
|
_PLATFORM = None
|
|
_DEFAULT_INSTALLER = 'packaging'
|
|
|
|
|
|
def newer(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 PackagingFileError("file '%s' 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 get_platform():
|
|
"""Return a string that identifies the current platform.
|
|
|
|
By default, will return the value returned by sysconfig.get_platform(),
|
|
but it can be changed by calling set_platform().
|
|
"""
|
|
global _PLATFORM
|
|
if _PLATFORM is None:
|
|
_PLATFORM = sysconfig.get_platform()
|
|
return _PLATFORM
|
|
|
|
|
|
def set_platform(identifier):
|
|
"""Set the platform string identifier returned by get_platform().
|
|
|
|
Note that this change doesn't impact the value returned by
|
|
sysconfig.get_platform(); it is local to packaging.
|
|
"""
|
|
global _PLATFORM
|
|
_PLATFORM = identifier
|
|
|
|
|
|
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)
|
|
|
|
|
|
def change_root(new_root, pathname):
|
|
"""Return 'pathname' with 'new_root' prepended.
|
|
|
|
If 'pathname' is relative, this is equivalent to
|
|
os.path.join(new_root,pathname). Otherwise, it requires making 'pathname'
|
|
relative and then joining the two, which is tricky on DOS/Windows.
|
|
"""
|
|
if os.name == 'posix':
|
|
if not os.path.isabs(pathname):
|
|
return os.path.join(new_root, pathname)
|
|
else:
|
|
return os.path.join(new_root, pathname[1:])
|
|
|
|
elif os.name == 'nt':
|
|
drive, path = os.path.splitdrive(pathname)
|
|
if path[0] == '\\':
|
|
path = path[1:]
|
|
return os.path.join(new_root, path)
|
|
|
|
elif os.name == 'os2':
|
|
drive, path = os.path.splitdrive(pathname)
|
|
if path[0] == os.sep:
|
|
path = path[1:]
|
|
return os.path.join(new_root, path)
|
|
|
|
else:
|
|
raise PackagingPlatformError("nothing known about "
|
|
"platform '%s'" % os.name)
|
|
|
|
_environ_checked = False
|
|
|
|
|
|
def check_environ():
|
|
"""Ensure that 'os.environ' has all the environment variables needed.
|
|
|
|
We guarantee that users can use in config files, command-line options,
|
|
etc. Currently this includes:
|
|
HOME - user's home directory (Unix only)
|
|
PLAT - description of the current platform, including hardware
|
|
and OS (see 'get_platform()')
|
|
"""
|
|
global _environ_checked
|
|
if _environ_checked:
|
|
return
|
|
|
|
if os.name == 'posix' and 'HOME' not in os.environ:
|
|
import pwd
|
|
os.environ['HOME'] = pwd.getpwuid(os.getuid())[5]
|
|
|
|
if 'PLAT' not in os.environ:
|
|
os.environ['PLAT'] = sysconfig.get_platform()
|
|
|
|
_environ_checked = True
|
|
|
|
|
|
def subst_vars(s, local_vars):
|
|
"""Perform shell/Perl-style variable substitution on 'string'.
|
|
|
|
Every occurrence of '$' followed by a name is considered a variable, and
|
|
variable is substituted by the value found in the 'local_vars'
|
|
dictionary, or in 'os.environ' if it's not in 'local_vars'.
|
|
'os.environ' is first checked/augmented to guarantee that it contains
|
|
certain values: see 'check_environ()'. Raise ValueError for any
|
|
variables not found in either 'local_vars' or 'os.environ'.
|
|
"""
|
|
check_environ()
|
|
|
|
def _subst(match, local_vars=local_vars):
|
|
var_name = match.group(1)
|
|
if var_name in local_vars:
|
|
return str(local_vars[var_name])
|
|
else:
|
|
return os.environ[var_name]
|
|
|
|
try:
|
|
return re.sub(r'\$([a-zA-Z_][a-zA-Z_0-9]*)', _subst, s)
|
|
except KeyError as var:
|
|
raise ValueError("invalid variable '$%s'" % var)
|
|
|
|
|
|
# Needed by 'split_quoted()'
|
|
_wordchars_re = _squote_re = _dquote_re = None
|
|
|
|
|
|
def _init_regex():
|
|
global _wordchars_re, _squote_re, _dquote_re
|
|
_wordchars_re = re.compile(r'[^\\\'\"%s ]*' % string.whitespace)
|
|
_squote_re = re.compile(r"'(?:[^'\\]|\\.)*'")
|
|
_dquote_re = re.compile(r'"(?:[^"\\]|\\.)*"')
|
|
|
|
|
|
def split_quoted(s):
|
|
"""Split a string up according to Unix shell-like rules for quotes and
|
|
backslashes.
|
|
|
|
In short: words are delimited by spaces, as long as those
|
|
spaces are not escaped by a backslash, or inside a quoted string.
|
|
Single and double quotes are equivalent, and the quote characters can
|
|
be backslash-escaped. The backslash is stripped from any two-character
|
|
escape sequence, leaving only the escaped character. The quote
|
|
characters are stripped from any quoted string. Returns a list of
|
|
words.
|
|
"""
|
|
# This is a nice algorithm for splitting up a single string, since it
|
|
# doesn't require character-by-character examination. It was a little
|
|
# bit of a brain-bender to get it working right, though...
|
|
if _wordchars_re is None:
|
|
_init_regex()
|
|
|
|
s = s.strip()
|
|
words = []
|
|
pos = 0
|
|
|
|
while s:
|
|
m = _wordchars_re.match(s, pos)
|
|
end = m.end()
|
|
if end == len(s):
|
|
words.append(s[:end])
|
|
break
|
|
|
|
if s[end] in string.whitespace: # unescaped, unquoted whitespace: now
|
|
words.append(s[:end]) # we definitely have a word delimiter
|
|
s = s[end:].lstrip()
|
|
pos = 0
|
|
|
|
elif s[end] == '\\': # preserve whatever is being escaped;
|
|
# will become part of the current word
|
|
s = s[:end] + s[end + 1:]
|
|
pos = end + 1
|
|
|
|
else:
|
|
if s[end] == "'": # slurp singly-quoted string
|
|
m = _squote_re.match(s, end)
|
|
elif s[end] == '"': # slurp doubly-quoted string
|
|
m = _dquote_re.match(s, end)
|
|
else:
|
|
raise RuntimeError("this can't happen "
|
|
"(bad char '%c')" % s[end])
|
|
|
|
if m is None:
|
|
raise ValueError("bad string (mismatched %s quotes?)" % s[end])
|
|
|
|
beg, end = m.span()
|
|
s = s[:beg] + s[beg + 1:end - 1] + s[end:]
|
|
pos = m.end() - 2
|
|
|
|
if pos >= len(s):
|
|
words.append(s)
|
|
break
|
|
|
|
return words
|
|
|
|
|
|
def execute(func, args, msg=None, verbose=0, dry_run=False):
|
|
"""Perform some action that affects the outside world.
|
|
|
|
Some actions (e.g. writing to the filesystem) are special because
|
|
they are disabled by the 'dry_run' flag. This method takes care of all
|
|
that bureaucracy for you; all you have to do is supply the
|
|
function to call and an argument tuple for it (to embody the
|
|
"external action" being performed), and an optional message to
|
|
print.
|
|
"""
|
|
if msg is None:
|
|
msg = "%s%r" % (func.__name__, args)
|
|
if msg[-2:] == ',)': # correct for singleton tuple
|
|
msg = msg[0:-2] + ')'
|
|
|
|
logger.info(msg)
|
|
if not dry_run:
|
|
func(*args)
|
|
|
|
|
|
def strtobool(val):
|
|
"""Convert a string representation of truth to true (1) or false (0).
|
|
|
|
True values are 'y', 'yes', 't', 'true', 'on', and '1'; false values
|
|
are 'n', 'no', 'f', 'false', 'off', and '0'. Raises ValueError if
|
|
'val' is anything else.
|
|
"""
|
|
val = val.lower()
|
|
if val in ('y', 'yes', 't', 'true', 'on', '1'):
|
|
return True
|
|
elif val in ('n', 'no', 'f', 'false', 'off', '0'):
|
|
return False
|
|
else:
|
|
raise ValueError("invalid truth value %r" % (val,))
|
|
|
|
|
|
def byte_compile(py_files, optimize=0, force=False, prefix=None,
|
|
base_dir=None, verbose=0, dry_run=False, direct=None):
|
|
"""Byte-compile a collection of Python source files to either .pyc
|
|
or .pyo files in the same directory.
|
|
|
|
'py_files' is a list of files to compile; any files that don't end in
|
|
".py" are silently skipped. 'optimize' must be one of the following:
|
|
0 - don't optimize (generate .pyc)
|
|
1 - normal optimization (like "python -O")
|
|
2 - extra optimization (like "python -OO")
|
|
If 'force' is true, all files are recompiled regardless of
|
|
timestamps.
|
|
|
|
The source filename encoded in each bytecode file defaults to the
|
|
filenames listed in 'py_files'; you can modify these with 'prefix' and
|
|
'basedir'. 'prefix' is a string that will be stripped off of each
|
|
source filename, and 'base_dir' is a directory name that will be
|
|
prepended (after 'prefix' is stripped). You can supply either or both
|
|
(or neither) of 'prefix' and 'base_dir', as you wish.
|
|
|
|
If 'dry_run' is true, doesn't actually do anything that would
|
|
affect the filesystem.
|
|
|
|
Byte-compilation is either done directly in this interpreter process
|
|
with the standard py_compile module, or indirectly by writing a
|
|
temporary script and executing it. Normally, you should let
|
|
'byte_compile()' figure out to use direct compilation or not (see
|
|
the source for details). The 'direct' flag is used by the script
|
|
generated in indirect mode; unless you know what you're doing, leave
|
|
it set to None.
|
|
"""
|
|
# nothing is done if sys.dont_write_bytecode is True
|
|
# FIXME this should not raise an error
|
|
if hasattr(sys, 'dont_write_bytecode') and sys.dont_write_bytecode:
|
|
raise PackagingByteCompileError('byte-compiling is disabled.')
|
|
|
|
# First, if the caller didn't force us into direct or indirect mode,
|
|
# figure out which mode we should be in. We take a conservative
|
|
# approach: choose direct mode *only* if the current interpreter is
|
|
# in debug mode and optimize is 0. If we're not in debug mode (-O
|
|
# or -OO), we don't know which level of optimization this
|
|
# interpreter is running with, so we can't do direct
|
|
# byte-compilation and be certain that it's the right thing. Thus,
|
|
# always compile indirectly if the current interpreter is in either
|
|
# optimize mode, or if either optimization level was requested by
|
|
# the caller.
|
|
if direct is None:
|
|
direct = (__debug__ and optimize == 0)
|
|
|
|
# "Indirect" byte-compilation: write a temporary script and then
|
|
# run it with the appropriate flags.
|
|
if not direct:
|
|
from tempfile import mkstemp
|
|
# XXX script_fd may leak, use something better than mkstemp
|
|
script_fd, script_name = mkstemp(".py")
|
|
logger.info("writing byte-compilation script '%s'", script_name)
|
|
if not dry_run:
|
|
if script_fd is not None:
|
|
script = os.fdopen(script_fd, "w", encoding='utf-8')
|
|
else:
|
|
script = open(script_name, "w", encoding='utf-8')
|
|
|
|
with script:
|
|
script.write("""\
|
|
from packaging.util import byte_compile
|
|
files = [
|
|
""")
|
|
|
|
# XXX would be nice to write absolute filenames, just for
|
|
# safety's sake (script should be more robust in the face of
|
|
# chdir'ing before running it). But this requires abspath'ing
|
|
# 'prefix' as well, and that breaks the hack in build_lib's
|
|
# 'byte_compile()' method that carefully tacks on a trailing
|
|
# slash (os.sep really) to make sure the prefix here is "just
|
|
# right". This whole prefix business is rather delicate -- the
|
|
# problem is that it's really a directory, but I'm treating it
|
|
# as a dumb string, so trailing slashes and so forth matter.
|
|
|
|
#py_files = map(os.path.abspath, py_files)
|
|
#if prefix:
|
|
# prefix = os.path.abspath(prefix)
|
|
|
|
script.write(",\n".join(map(repr, py_files)) + "]\n")
|
|
script.write("""
|
|
byte_compile(files, optimize=%r, force=%r,
|
|
prefix=%r, base_dir=%r,
|
|
verbose=%r, dry_run=False,
|
|
direct=True)
|
|
""" % (optimize, force, prefix, base_dir, verbose))
|
|
|
|
cmd = [sys.executable, script_name]
|
|
if optimize == 1:
|
|
cmd.insert(1, "-O")
|
|
elif optimize == 2:
|
|
cmd.insert(1, "-OO")
|
|
|
|
env = copy(os.environ)
|
|
env['PYTHONPATH'] = os.path.pathsep.join(sys.path)
|
|
try:
|
|
spawn(cmd, env=env)
|
|
finally:
|
|
execute(os.remove, (script_name,), "removing %s" % script_name,
|
|
dry_run=dry_run)
|
|
|
|
# "Direct" byte-compilation: use the py_compile module to compile
|
|
# right here, right now. Note that the script generated in indirect
|
|
# mode simply calls 'byte_compile()' in direct mode, a weird sort of
|
|
# cross-process recursion. Hey, it works!
|
|
else:
|
|
from py_compile import compile
|
|
|
|
for file in py_files:
|
|
if file[-3:] != ".py":
|
|
# This lets us be lazy and not filter filenames in
|
|
# the "install_lib" command.
|
|
continue
|
|
|
|
# Terminology from the py_compile module:
|
|
# cfile - byte-compiled file
|
|
# dfile - purported source filename (same as 'file' by default)
|
|
cfile = file + (__debug__ and "c" or "o")
|
|
dfile = file
|
|
if prefix:
|
|
if file[:len(prefix)] != prefix:
|
|
raise ValueError("invalid prefix: filename %r doesn't "
|
|
"start with %r" % (file, prefix))
|
|
dfile = dfile[len(prefix):]
|
|
if base_dir:
|
|
dfile = os.path.join(base_dir, dfile)
|
|
|
|
cfile_base = os.path.basename(cfile)
|
|
if direct:
|
|
if force or newer(file, cfile):
|
|
logger.info("byte-compiling %s to %s", file, cfile_base)
|
|
if not dry_run:
|
|
compile(file, cfile, dfile)
|
|
else:
|
|
logger.debug("skipping byte-compilation of %s to %s",
|
|
file, cfile_base)
|
|
|
|
|
|
def rfc822_escape(header):
|
|
"""Return a form of *header* suitable for inclusion in an RFC 822-header.
|
|
|
|
This function ensures there are 8 spaces after each newline.
|
|
"""
|
|
lines = header.split('\n')
|
|
sep = '\n' + 8 * ' '
|
|
return sep.join(lines)
|
|
|
|
_RE_VERSION = re.compile('(\d+\.\d+(\.\d+)*)')
|
|
_MAC_OS_X_LD_VERSION = re.compile('^@\(#\)PROGRAM:ld '
|
|
'PROJECT:ld64-((\d+)(\.\d+)*)')
|
|
|
|
|
|
def _find_ld_version():
|
|
"""Find the ld version. The version scheme differs under Mac OS X."""
|
|
if sys.platform == 'darwin':
|
|
return _find_exe_version('ld -v', _MAC_OS_X_LD_VERSION)
|
|
else:
|
|
return _find_exe_version('ld -v')
|
|
|
|
|
|
def _find_exe_version(cmd, pattern=_RE_VERSION):
|
|
"""Find the version of an executable by running `cmd` in the shell.
|
|
|
|
`pattern` is a compiled regular expression. If not provided, defaults
|
|
to _RE_VERSION. If the command is not found, or the output does not
|
|
match the mattern, returns None.
|
|
"""
|
|
from subprocess import Popen, PIPE
|
|
executable = cmd.split()[0]
|
|
if find_executable(executable) is None:
|
|
return None
|
|
pipe = Popen(cmd, shell=True, stdout=PIPE, stderr=PIPE)
|
|
try:
|
|
stdout, stderr = pipe.communicate()
|
|
finally:
|
|
pipe.stdout.close()
|
|
pipe.stderr.close()
|
|
# some commands like ld under MacOS X, will give the
|
|
# output in the stderr, rather than stdout.
|
|
if stdout != '':
|
|
out_string = stdout
|
|
else:
|
|
out_string = stderr
|
|
|
|
result = pattern.search(out_string)
|
|
if result is None:
|
|
return None
|
|
return result.group(1)
|
|
|
|
|
|
def get_compiler_versions():
|
|
"""Return a tuple providing the versions of gcc, ld and dllwrap
|
|
|
|
For each command, if a command is not found, None is returned.
|
|
Otherwise a string with the version is returned.
|
|
"""
|
|
gcc = _find_exe_version('gcc -dumpversion')
|
|
ld = _find_ld_version()
|
|
dllwrap = _find_exe_version('dllwrap --version')
|
|
return gcc, ld, dllwrap
|
|
|
|
|
|
def newer_group(sources, target, missing='error'):
|
|
"""Return true if 'target' is out-of-date with respect to any file
|
|
listed in 'sources'.
|
|
|
|
In other words, if 'target' exists and is newer
|
|
than every file in 'sources', return false; otherwise return true.
|
|
'missing' controls what we do when a source file is missing; the
|
|
default ("error") is to blow up with an OSError from inside 'stat()';
|
|
if it is "ignore", we silently drop any missing source files; if it is
|
|
"newer", any missing source files make us assume that 'target' is
|
|
out-of-date (this is handy in "dry-run" mode: it'll make you pretend to
|
|
carry out commands that wouldn't work because inputs are missing, but
|
|
that doesn't matter because you're not actually going to run the
|
|
commands).
|
|
"""
|
|
# If the target doesn't even exist, then it's definitely out-of-date.
|
|
if not os.path.exists(target):
|
|
return True
|
|
|
|
# Otherwise we have to find out the hard way: if *any* source file
|
|
# is more recent than 'target', then 'target' is out-of-date and
|
|
# we can immediately return true. If we fall through to the end
|
|
# of the loop, then 'target' is up-to-date and we return false.
|
|
target_mtime = os.stat(target).st_mtime
|
|
|
|
for source in sources:
|
|
if not os.path.exists(source):
|
|
if missing == 'error': # blow up when we stat() the file
|
|
pass
|
|
elif missing == 'ignore': # missing source dropped from
|
|
continue # target's dependency list
|
|
elif missing == 'newer': # missing source means target is
|
|
return True # out-of-date
|
|
|
|
if os.stat(source).st_mtime > target_mtime:
|
|
return True
|
|
|
|
return False
|
|
|
|
|
|
def write_file(filename, contents):
|
|
"""Create *filename* and write *contents* to it.
|
|
|
|
*contents* is a sequence of strings without line terminators.
|
|
"""
|
|
with open(filename, "w") as f:
|
|
for line in contents:
|
|
f.write(line + "\n")
|
|
|
|
|
|
def _is_package(path):
|
|
if not os.path.isdir(path):
|
|
return False
|
|
return os.path.isfile(os.path.join(path, '__init__.py'))
|
|
|
|
|
|
# Code taken from the pip project
|
|
def _is_archive_file(name):
|
|
archives = ('.zip', '.tar.gz', '.tar.bz2', '.tgz', '.tar')
|
|
ext = splitext(name)[1].lower()
|
|
if ext in archives:
|
|
return True
|
|
return False
|
|
|
|
|
|
def _under(path, root):
|
|
path = path.split(os.sep)
|
|
root = root.split(os.sep)
|
|
if len(root) > len(path):
|
|
return False
|
|
for pos, part in enumerate(root):
|
|
if path[pos] != part:
|
|
return False
|
|
return True
|
|
|
|
|
|
def _package_name(root_path, path):
|
|
# Return a dotted package name, given a subpath
|
|
if not _under(path, root_path):
|
|
raise ValueError('"%s" is not a subpath of "%s"' % (path, root_path))
|
|
return path[len(root_path) + 1:].replace(os.sep, '.')
|
|
|
|
|
|
def find_packages(paths=(os.curdir,), exclude=()):
|
|
"""Return a list all Python packages found recursively within
|
|
directories 'paths'
|
|
|
|
'paths' should be supplied as a sequence of "cross-platform"
|
|
(i.e. URL-style) path; it will be converted to the appropriate local
|
|
path syntax.
|
|
|
|
'exclude' is a sequence of package names to exclude; '*' can be used as
|
|
a wildcard in the names, such that 'foo.*' will exclude all subpackages
|
|
of 'foo' (but not 'foo' itself).
|
|
"""
|
|
packages = []
|
|
discarded = []
|
|
|
|
def _discarded(path):
|
|
for discard in discarded:
|
|
if _under(path, discard):
|
|
return True
|
|
return False
|
|
|
|
for path in paths:
|
|
path = convert_path(path)
|
|
for root, dirs, files in os.walk(path):
|
|
for dir_ in dirs:
|
|
fullpath = os.path.join(root, dir_)
|
|
if _discarded(fullpath):
|
|
continue
|
|
# we work only with Python packages
|
|
if not _is_package(fullpath):
|
|
discarded.append(fullpath)
|
|
continue
|
|
# see if it's excluded
|
|
excluded = False
|
|
package_name = _package_name(path, fullpath)
|
|
for pattern in exclude:
|
|
if fnmatchcase(package_name, pattern):
|
|
excluded = True
|
|
break
|
|
if excluded:
|
|
continue
|
|
|
|
# adding it to the list
|
|
packages.append(package_name)
|
|
return packages
|
|
|
|
|
|
def resolve_name(name):
|
|
"""Resolve a name like ``module.object`` to an object and return it.
|
|
|
|
Raise ImportError if the module or name is not found.
|
|
"""
|
|
parts = name.split('.')
|
|
cursor = len(parts)
|
|
module_name = parts[:cursor]
|
|
|
|
while cursor > 0:
|
|
try:
|
|
ret = __import__('.'.join(module_name))
|
|
break
|
|
except ImportError:
|
|
if cursor == 0:
|
|
raise
|
|
cursor -= 1
|
|
module_name = parts[:cursor]
|
|
ret = ''
|
|
|
|
for part in parts[1:]:
|
|
try:
|
|
ret = getattr(ret, part)
|
|
except AttributeError as exc:
|
|
raise ImportError(exc)
|
|
|
|
return ret
|
|
|
|
|
|
def splitext(path):
|
|
"""Like os.path.splitext, but take off .tar too"""
|
|
base, ext = posixpath.splitext(path)
|
|
if base.lower().endswith('.tar'):
|
|
ext = base[-4:] + ext
|
|
base = base[:-4]
|
|
return base, ext
|
|
|
|
|
|
def unzip_file(filename, location, flatten=True):
|
|
"""Unzip the file *filename* into the *location* directory."""
|
|
if not os.path.exists(location):
|
|
os.makedirs(location)
|
|
with open(filename, 'rb') as zipfp:
|
|
zip = zipfile.ZipFile(zipfp)
|
|
leading = has_leading_dir(zip.namelist()) and flatten
|
|
for name in zip.namelist():
|
|
data = zip.read(name)
|
|
fn = name
|
|
if leading:
|
|
fn = split_leading_dir(name)[1]
|
|
fn = os.path.join(location, fn)
|
|
dir = os.path.dirname(fn)
|
|
if not os.path.exists(dir):
|
|
os.makedirs(dir)
|
|
if fn.endswith('/') or fn.endswith('\\'):
|
|
# A directory
|
|
if not os.path.exists(fn):
|
|
os.makedirs(fn)
|
|
else:
|
|
with open(fn, 'wb') as fp:
|
|
fp.write(data)
|
|
|
|
|
|
def untar_file(filename, location):
|
|
"""Untar the file *filename* into the *location* directory."""
|
|
if not os.path.exists(location):
|
|
os.makedirs(location)
|
|
if filename.lower().endswith('.gz') or filename.lower().endswith('.tgz'):
|
|
mode = 'r:gz'
|
|
elif (filename.lower().endswith('.bz2')
|
|
or filename.lower().endswith('.tbz')):
|
|
mode = 'r:bz2'
|
|
elif filename.lower().endswith('.tar'):
|
|
mode = 'r'
|
|
else:
|
|
mode = 'r:*'
|
|
with tarfile.open(filename, mode) as tar:
|
|
leading = has_leading_dir(member.name for member in tar.getmembers())
|
|
for member in tar.getmembers():
|
|
fn = member.name
|
|
if leading:
|
|
fn = split_leading_dir(fn)[1]
|
|
path = os.path.join(location, fn)
|
|
if member.isdir():
|
|
if not os.path.exists(path):
|
|
os.makedirs(path)
|
|
else:
|
|
try:
|
|
fp = tar.extractfile(member)
|
|
except (KeyError, AttributeError):
|
|
# Some corrupt tar files seem to produce this
|
|
# (specifically bad symlinks)
|
|
continue
|
|
try:
|
|
if not os.path.exists(os.path.dirname(path)):
|
|
os.makedirs(os.path.dirname(path))
|
|
with open(path, 'wb') as destfp:
|
|
shutil.copyfileobj(fp, destfp)
|
|
finally:
|
|
fp.close()
|
|
|
|
|
|
def has_leading_dir(paths):
|
|
"""Return true if all the paths have the same leading path name.
|
|
|
|
In other words, check that everything is in one subdirectory in an
|
|
archive.
|
|
"""
|
|
common_prefix = None
|
|
for path in paths:
|
|
prefix, rest = split_leading_dir(path)
|
|
if not prefix:
|
|
return False
|
|
elif common_prefix is None:
|
|
common_prefix = prefix
|
|
elif prefix != common_prefix:
|
|
return False
|
|
return True
|
|
|
|
|
|
def split_leading_dir(path):
|
|
path = str(path)
|
|
path = path.lstrip('/').lstrip('\\')
|
|
if '/' in path and (('\\' in path and path.find('/') < path.find('\\'))
|
|
or '\\' not in path):
|
|
return path.split('/', 1)
|
|
elif '\\' in path:
|
|
return path.split('\\', 1)
|
|
else:
|
|
return path, ''
|
|
|
|
|
|
def spawn(cmd, search_path=True, verbose=0, dry_run=False, env=None):
|
|
"""Run another program specified as a command list 'cmd' in a new process.
|
|
|
|
'cmd' is just the argument list for the new process, ie.
|
|
cmd[0] is the program to run and cmd[1:] are the rest of its arguments.
|
|
There is no way to run a program with a name different from that of its
|
|
executable.
|
|
|
|
If 'search_path' is true (the default), the system's executable
|
|
search path will be used to find the program; otherwise, cmd[0]
|
|
must be the exact path to the executable. If 'dry_run' is true,
|
|
the command will not actually be run.
|
|
|
|
If 'env' is given, it's a environment dictionary used for the execution
|
|
environment.
|
|
|
|
Raise PackagingExecError if running the program fails in any way; just
|
|
return on success.
|
|
"""
|
|
logger.info(' '.join(cmd))
|
|
if dry_run:
|
|
return
|
|
exit_status = subprocess.call(cmd, env=env)
|
|
if exit_status != 0:
|
|
msg = "command '%s' failed with exit status %d"
|
|
raise PackagingExecError(msg % (cmd, exit_status))
|
|
|
|
|
|
def find_executable(executable, path=None):
|
|
"""Try to find 'executable' in the directories listed in 'path'.
|
|
|
|
*path* is a string listing directories separated by 'os.pathsep' and
|
|
defaults to os.environ['PATH']. Returns the complete filename or None
|
|
if not found.
|
|
"""
|
|
if path is None:
|
|
path = os.environ['PATH']
|
|
paths = path.split(os.pathsep)
|
|
base, ext = os.path.splitext(executable)
|
|
|
|
if (sys.platform == 'win32' or os.name == 'os2') and (ext != '.exe'):
|
|
executable = executable + '.exe'
|
|
|
|
if not os.path.isfile(executable):
|
|
for p in paths:
|
|
f = os.path.join(p, executable)
|
|
if os.path.isfile(f):
|
|
# the file exists, we have a shot at spawn working
|
|
return f
|
|
return None
|
|
else:
|
|
return executable
|
|
|
|
|
|
DEFAULT_REPOSITORY = 'http://pypi.python.org/pypi'
|
|
DEFAULT_REALM = 'pypi'
|
|
DEFAULT_PYPIRC = """\
|
|
[distutils]
|
|
index-servers =
|
|
pypi
|
|
|
|
[pypi]
|
|
username:%s
|
|
password:%s
|
|
"""
|
|
|
|
|
|
def get_pypirc_path():
|
|
"""Return path to pypirc config file."""
|
|
return os.path.join(os.path.expanduser('~'), '.pypirc')
|
|
|
|
|
|
def generate_pypirc(username, password):
|
|
"""Create a default .pypirc file."""
|
|
rc = get_pypirc_path()
|
|
with open(rc, 'w') as f:
|
|
f.write(DEFAULT_PYPIRC % (username, password))
|
|
try:
|
|
os.chmod(rc, 0o600)
|
|
except OSError:
|
|
# should do something better here
|
|
pass
|
|
|
|
|
|
def read_pypirc(repository=DEFAULT_REPOSITORY, realm=DEFAULT_REALM):
|
|
"""Read the .pypirc file."""
|
|
rc = get_pypirc_path()
|
|
if os.path.exists(rc):
|
|
config = RawConfigParser()
|
|
config.read(rc)
|
|
sections = config.sections()
|
|
if 'distutils' in sections:
|
|
# let's get the list of servers
|
|
index_servers = config.get('distutils', 'index-servers')
|
|
_servers = [server.strip() for server in
|
|
index_servers.split('\n')
|
|
if server.strip() != '']
|
|
if _servers == []:
|
|
# nothing set, let's try to get the default pypi
|
|
if 'pypi' in sections:
|
|
_servers = ['pypi']
|
|
else:
|
|
# the file is not properly defined, returning
|
|
# an empty dict
|
|
return {}
|
|
for server in _servers:
|
|
current = {'server': server}
|
|
current['username'] = config.get(server, 'username')
|
|
|
|
# optional params
|
|
for key, default in (('repository', DEFAULT_REPOSITORY),
|
|
('realm', DEFAULT_REALM),
|
|
('password', None)):
|
|
if config.has_option(server, key):
|
|
current[key] = config.get(server, key)
|
|
else:
|
|
current[key] = default
|
|
if (current['server'] == repository or
|
|
current['repository'] == repository):
|
|
return current
|
|
elif 'server-login' in sections:
|
|
# old format
|
|
server = 'server-login'
|
|
if config.has_option(server, 'repository'):
|
|
repository = config.get(server, 'repository')
|
|
else:
|
|
repository = DEFAULT_REPOSITORY
|
|
|
|
return {'username': config.get(server, 'username'),
|
|
'password': config.get(server, 'password'),
|
|
'repository': repository,
|
|
'server': server,
|
|
'realm': DEFAULT_REALM}
|
|
|
|
return {}
|
|
|
|
|
|
# utility functions for 2to3 support
|
|
|
|
def run_2to3(files, doctests_only=False, fixer_names=None,
|
|
options=None, explicit=None):
|
|
""" Wrapper function around the refactor() class which
|
|
performs the conversions on a list of python files.
|
|
Invoke 2to3 on a list of Python files. The files should all come
|
|
from the build area, as the modification is done in-place."""
|
|
|
|
#if not files:
|
|
# return
|
|
|
|
# Make this class local, to delay import of 2to3
|
|
from lib2to3.refactor import get_fixers_from_package, RefactoringTool
|
|
fixers = []
|
|
fixers = get_fixers_from_package('lib2to3.fixes')
|
|
|
|
if fixer_names:
|
|
for fixername in fixer_names:
|
|
fixers.extend(fixer for fixer in
|
|
get_fixers_from_package(fixername))
|
|
r = RefactoringTool(fixers, options=options)
|
|
r.refactor(files, write=True, doctests_only=doctests_only)
|
|
|
|
|
|
class Mixin2to3:
|
|
""" Wrapper class for commands that run 2to3.
|
|
To configure 2to3, setup scripts may either change
|
|
the class variables, or inherit from this class
|
|
to override how 2to3 is invoked.
|
|
"""
|
|
# provide list of fixers to run.
|
|
# defaults to all from lib2to3.fixers
|
|
fixer_names = None
|
|
|
|
# options dictionary
|
|
options = None
|
|
|
|
# list of fixers to invoke even though they are marked as explicit
|
|
explicit = None
|
|
|
|
def run_2to3(self, files, doctests_only=False):
|
|
""" Issues a call to util.run_2to3. """
|
|
return run_2to3(files, doctests_only, self.fixer_names,
|
|
self.options, self.explicit)
|
|
|
|
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 file in _iglob(os.path.join(path, radical)):
|
|
yield file
|
|
|
|
|
|
def cfg_to_args(path='setup.cfg'):
|
|
"""Compatibility helper to use setup.cfg in setup.py.
|
|
|
|
This functions uses an existing setup.cfg to generate a dictionnary of
|
|
keywords that can be used by distutils.core.setup(**kwargs). It is used
|
|
by generate_setup_py.
|
|
|
|
*file* is the path to the setup.cfg file. If it doesn't exist,
|
|
PackagingFileError is raised.
|
|
"""
|
|
# We need to declare the following constants here so that it's easier to
|
|
# generate the setup.py afterwards, using inspect.getsource.
|
|
|
|
# XXX ** == needs testing
|
|
D1_D2_SETUP_ARGS = {"name": ("metadata",),
|
|
"version": ("metadata",),
|
|
"author": ("metadata",),
|
|
"author_email": ("metadata",),
|
|
"maintainer": ("metadata",),
|
|
"maintainer_email": ("metadata",),
|
|
"url": ("metadata", "home_page"),
|
|
"description": ("metadata", "summary"),
|
|
"long_description": ("metadata", "description"),
|
|
"download-url": ("metadata",),
|
|
"classifiers": ("metadata", "classifier"),
|
|
"platforms": ("metadata", "platform"), # **
|
|
"license": ("metadata",),
|
|
"requires": ("metadata", "requires_dist"),
|
|
"provides": ("metadata", "provides_dist"), # **
|
|
"obsoletes": ("metadata", "obsoletes_dist"), # **
|
|
"packages": ("files",),
|
|
"scripts": ("files",),
|
|
"py_modules": ("files", "modules"), # **
|
|
}
|
|
|
|
MULTI_FIELDS = ("classifiers",
|
|
"requires",
|
|
"platforms",
|
|
"packages",
|
|
"scripts")
|
|
|
|
def has_get_option(config, section, option):
|
|
if config.has_option(section, option):
|
|
return config.get(section, option)
|
|
elif config.has_option(section, option.replace('_', '-')):
|
|
return config.get(section, option.replace('_', '-'))
|
|
else:
|
|
return False
|
|
|
|
# The real code starts here
|
|
config = RawConfigParser()
|
|
if not os.path.exists(file):
|
|
raise PackagingFileError("file '%s' does not exist" %
|
|
os.path.abspath(file))
|
|
config.read(path)
|
|
|
|
kwargs = {}
|
|
for arg in D1_D2_SETUP_ARGS:
|
|
if len(D1_D2_SETUP_ARGS[arg]) == 2:
|
|
# The distutils field name is different than packaging's
|
|
section, option = D1_D2_SETUP_ARGS[arg]
|
|
|
|
else:
|
|
# The distutils field name is the same thant packaging's
|
|
section = D1_D2_SETUP_ARGS[arg][0]
|
|
option = arg
|
|
|
|
in_cfg_value = has_get_option(config, section, option)
|
|
if not in_cfg_value:
|
|
# There is no such option in the setup.cfg
|
|
if arg == "long_description":
|
|
filename = has_get_option(config, section, "description_file")
|
|
if filename:
|
|
with open(filename) as fp:
|
|
in_cfg_value = fp.read()
|
|
else:
|
|
continue
|
|
|
|
if arg in MULTI_FIELDS:
|
|
# support multiline options
|
|
in_cfg_value = in_cfg_value.strip().split('\n')
|
|
|
|
kwargs[arg] = in_cfg_value
|
|
|
|
return kwargs
|
|
|
|
|
|
_SETUP_TMPL = """\
|
|
# This script was automatically generated by packaging
|
|
import os
|
|
from distutils.core import setup
|
|
from ConfigParser import RawConfigParser
|
|
|
|
%(func)s
|
|
|
|
setup(**cfg_to_args())
|
|
"""
|
|
|
|
|
|
def generate_setup_py():
|
|
"""Generate a distutils compatible setup.py using an existing setup.cfg.
|
|
|
|
Raises a PackagingFileError when a setup.py already exists.
|
|
"""
|
|
if os.path.exists("setup.py"):
|
|
raise PackagingFileError("a setup.py file alreadyexists")
|
|
|
|
with open("setup.py", "w", encoding='utf-8') as fp:
|
|
fp.write(_SETUP_TMPL % {'func': getsource(cfg_to_args)})
|
|
|
|
|
|
# Taken from the pip project
|
|
# https://github.com/pypa/pip/blob/master/pip/util.py
|
|
def ask(message, options):
|
|
"""Prompt the user with *message*; *options* contains allowed responses."""
|
|
while True:
|
|
response = input(message)
|
|
response = response.strip().lower()
|
|
if response not in options:
|
|
print('invalid response: %r' % response)
|
|
print('choose one of', ', '.join(repr(o) for o in options))
|
|
else:
|
|
return response
|
|
|
|
|
|
def _parse_record_file(record_file):
|
|
distinfo, extra_metadata, installed = ({}, [], [])
|
|
with open(record_file, 'r') as rfile:
|
|
for path in rfile:
|
|
path = path.strip()
|
|
if path.endswith('egg-info') and os.path.isfile(path):
|
|
distinfo_dir = path.replace('egg-info', 'dist-info')
|
|
metadata = path
|
|
egginfo = path
|
|
elif path.endswith('egg-info') and os.path.isdir(path):
|
|
distinfo_dir = path.replace('egg-info', 'dist-info')
|
|
egginfo = path
|
|
for metadata_file in os.listdir(path):
|
|
metadata_fpath = os.path.join(path, metadata_file)
|
|
if metadata_file == 'PKG-INFO':
|
|
metadata = metadata_fpath
|
|
else:
|
|
extra_metadata.append(metadata_fpath)
|
|
elif 'egg-info' in path and os.path.isfile(path):
|
|
# skip extra metadata files
|
|
continue
|
|
else:
|
|
installed.append(path)
|
|
|
|
distinfo['egginfo'] = egginfo
|
|
distinfo['metadata'] = metadata
|
|
distinfo['distinfo_dir'] = distinfo_dir
|
|
distinfo['installer_path'] = os.path.join(distinfo_dir, 'INSTALLER')
|
|
distinfo['metadata_path'] = os.path.join(distinfo_dir, 'METADATA')
|
|
distinfo['record_path'] = os.path.join(distinfo_dir, 'RECORD')
|
|
distinfo['requested_path'] = os.path.join(distinfo_dir, 'REQUESTED')
|
|
installed.extend([distinfo['installer_path'], distinfo['metadata_path']])
|
|
distinfo['installed'] = installed
|
|
distinfo['extra_metadata'] = extra_metadata
|
|
return distinfo
|
|
|
|
|
|
def _write_record_file(record_path, installed_files):
|
|
with open(record_path, 'w', encoding='utf-8') as f:
|
|
writer = csv.writer(f, delimiter=',', lineterminator=os.linesep,
|
|
quotechar='"')
|
|
|
|
for fpath in installed_files:
|
|
if fpath.endswith('.pyc') or fpath.endswith('.pyo'):
|
|
# do not put size and md5 hash, as in PEP-376
|
|
writer.writerow((fpath, '', ''))
|
|
else:
|
|
hash = hashlib.md5()
|
|
with open(fpath, 'rb') as fp:
|
|
hash.update(fp.read())
|
|
md5sum = hash.hexdigest()
|
|
size = os.path.getsize(fpath)
|
|
writer.writerow((fpath, md5sum, size))
|
|
|
|
# add the RECORD file itself
|
|
writer.writerow((record_path, '', ''))
|
|
return record_path
|
|
|
|
|
|
def egginfo_to_distinfo(record_file, installer=_DEFAULT_INSTALLER,
|
|
requested=False, remove_egginfo=False):
|
|
"""Create files and directories required for PEP 376
|
|
|
|
:param record_file: path to RECORD file as produced by setup.py --record
|
|
:param installer: installer name
|
|
:param requested: True if not installed as a dependency
|
|
:param remove_egginfo: delete egginfo dir?
|
|
"""
|
|
distinfo = _parse_record_file(record_file)
|
|
distinfo_dir = distinfo['distinfo_dir']
|
|
if os.path.isdir(distinfo_dir) and not os.path.islink(distinfo_dir):
|
|
shutil.rmtree(distinfo_dir)
|
|
elif os.path.exists(distinfo_dir):
|
|
os.unlink(distinfo_dir)
|
|
|
|
os.makedirs(distinfo_dir)
|
|
|
|
# copy setuptools extra metadata files
|
|
if distinfo['extra_metadata']:
|
|
for path in distinfo['extra_metadata']:
|
|
shutil.copy2(path, distinfo_dir)
|
|
new_path = path.replace('egg-info', 'dist-info')
|
|
distinfo['installed'].append(new_path)
|
|
|
|
metadata_path = distinfo['metadata_path']
|
|
logger.info('creating %s', metadata_path)
|
|
shutil.copy2(distinfo['metadata'], metadata_path)
|
|
|
|
installer_path = distinfo['installer_path']
|
|
logger.info('creating %s', installer_path)
|
|
with open(installer_path, 'w') as f:
|
|
f.write(installer)
|
|
|
|
if requested:
|
|
requested_path = distinfo['requested_path']
|
|
logger.info('creating %s', requested_path)
|
|
open(requested_path, 'wb').close()
|
|
distinfo['installed'].append(requested_path)
|
|
|
|
record_path = distinfo['record_path']
|
|
logger.info('creating %s', record_path)
|
|
_write_record_file(record_path, distinfo['installed'])
|
|
|
|
if remove_egginfo:
|
|
egginfo = distinfo['egginfo']
|
|
logger.info('removing %s', egginfo)
|
|
if os.path.isfile(egginfo):
|
|
os.remove(egginfo)
|
|
else:
|
|
shutil.rmtree(egginfo)
|
|
|
|
|
|
def _has_egg_info(srcdir):
|
|
if os.path.isdir(srcdir):
|
|
for item in os.listdir(srcdir):
|
|
full_path = os.path.join(srcdir, item)
|
|
if item.endswith('.egg-info') and os.path.isdir(full_path):
|
|
logger.info("found egg-info directory")
|
|
return True
|
|
logger.warning("no egg-info directory found")
|
|
return False
|
|
|
|
|
|
def _has_setuptools_text(setup_py):
|
|
return _has_text(setup_py, 'setuptools')
|
|
|
|
|
|
def _has_distutils_text(setup_py):
|
|
return _has_text(setup_py, 'distutils')
|
|
|
|
|
|
def _has_text(setup_py, installer):
|
|
installer_pattern = re.compile('import {0}|from {0}'.format(installer))
|
|
with open(setup_py, 'r', encoding='utf-8') as setup:
|
|
for line in setup:
|
|
if re.search(installer_pattern, line):
|
|
logger.info("found %s text in setup.py", installer)
|
|
return True
|
|
logger.warning("no %s text found in setup.py", installer)
|
|
return False
|
|
|
|
|
|
def _has_required_metadata(setup_cfg):
|
|
config = RawConfigParser()
|
|
config.read([setup_cfg], encoding='utf8')
|
|
return (config.has_section('metadata') and
|
|
'name' in config.options('metadata') and
|
|
'version' in config.options('metadata'))
|
|
|
|
|
|
def _has_pkg_info(srcdir):
|
|
pkg_info = os.path.join(srcdir, 'PKG-INFO')
|
|
has_pkg_info = os.path.isfile(pkg_info)
|
|
if has_pkg_info:
|
|
logger.info("PKG-INFO file found")
|
|
logger.warning("no PKG-INFO file found")
|
|
return has_pkg_info
|
|
|
|
|
|
def _has_setup_py(srcdir):
|
|
setup_py = os.path.join(srcdir, 'setup.py')
|
|
if os.path.isfile(setup_py):
|
|
logger.info('setup.py file found')
|
|
return True
|
|
return False
|
|
|
|
|
|
def _has_setup_cfg(srcdir):
|
|
setup_cfg = os.path.join(srcdir, 'setup.cfg')
|
|
if os.path.isfile(setup_cfg):
|
|
logger.info('setup.cfg file found')
|
|
return True
|
|
logger.warning("no setup.cfg file found")
|
|
return False
|
|
|
|
|
|
def is_setuptools(path):
|
|
"""Check if the project is based on setuptools.
|
|
|
|
:param path: path to source directory containing a setup.py script.
|
|
|
|
Return True if the project requires setuptools to install, else False.
|
|
"""
|
|
srcdir = os.path.abspath(path)
|
|
setup_py = os.path.join(srcdir, 'setup.py')
|
|
|
|
return _has_setup_py(srcdir) and (_has_egg_info(srcdir) or
|
|
_has_setuptools_text(setup_py))
|
|
|
|
|
|
def is_distutils(path):
|
|
"""Check if the project is based on distutils.
|
|
|
|
:param path: path to source directory containing a setup.py script.
|
|
|
|
Return True if the project requires distutils to install, else False.
|
|
"""
|
|
srcdir = os.path.abspath(path)
|
|
setup_py = os.path.join(srcdir, 'setup.py')
|
|
|
|
return _has_setup_py(srcdir) and (_has_pkg_info(srcdir) or
|
|
_has_distutils_text(setup_py))
|
|
|
|
|
|
def is_packaging(path):
|
|
"""Check if the project is based on packaging
|
|
|
|
:param path: path to source directory containing a setup.cfg file.
|
|
|
|
Return True if the project has a valid setup.cfg, else False.
|
|
"""
|
|
srcdir = os.path.abspath(path)
|
|
setup_cfg = os.path.join(srcdir, 'setup.cfg')
|
|
|
|
return _has_setup_cfg(srcdir) and _has_required_metadata(setup_cfg)
|
|
|
|
|
|
def get_install_method(path):
|
|
"""Check if the project is based on packaging, setuptools, or distutils
|
|
|
|
:param path: path to source directory containing a setup.cfg file,
|
|
or setup.py.
|
|
|
|
Returns a string representing the best install method to use.
|
|
"""
|
|
if is_packaging(path):
|
|
return "packaging"
|
|
elif is_setuptools(path):
|
|
return "setuptools"
|
|
elif is_distutils(path):
|
|
return "distutils"
|
|
else:
|
|
raise InstallationException('Cannot detect install method')
|
|
|
|
|
|
# XXX to be replaced by shutil.copytree
|
|
def copy_tree(src, dst, preserve_mode=True, preserve_times=True,
|
|
preserve_symlinks=False, update=False, verbose=True,
|
|
dry_run=False):
|
|
from distutils.file_util import copy_file
|
|
|
|
if not dry_run and not os.path.isdir(src):
|
|
raise PackagingFileError(
|
|
"cannot copy tree '%s': not a directory" % src)
|
|
try:
|
|
names = os.listdir(src)
|
|
except os.error as e:
|
|
errstr = e[1]
|
|
if dry_run:
|
|
names = []
|
|
else:
|
|
raise PackagingFileError(
|
|
"error listing files in '%s': %s" % (src, errstr))
|
|
|
|
if not dry_run:
|
|
_mkpath(dst, verbose=verbose)
|
|
|
|
outputs = []
|
|
|
|
for n in names:
|
|
src_name = os.path.join(src, n)
|
|
dst_name = os.path.join(dst, n)
|
|
|
|
if preserve_symlinks and os.path.islink(src_name):
|
|
link_dest = os.readlink(src_name)
|
|
if verbose >= 1:
|
|
logger.info("linking %s -> %s", dst_name, link_dest)
|
|
if not dry_run:
|
|
os.symlink(link_dest, dst_name)
|
|
outputs.append(dst_name)
|
|
|
|
elif os.path.isdir(src_name):
|
|
outputs.extend(
|
|
copy_tree(src_name, dst_name, preserve_mode,
|
|
preserve_times, preserve_symlinks, update,
|
|
verbose=verbose, dry_run=dry_run))
|
|
else:
|
|
copy_file(src_name, dst_name, preserve_mode,
|
|
preserve_times, update, verbose=verbose,
|
|
dry_run=dry_run)
|
|
outputs.append(dst_name)
|
|
|
|
return outputs
|
|
|
|
# cache for by mkpath() -- in addition to cheapening redundant calls,
|
|
# eliminates redundant "creating /foo/bar/baz" messages in dry-run mode
|
|
_path_created = set()
|
|
|
|
|
|
# I don't use os.makedirs because a) it's new to Python 1.5.2, and
|
|
# b) it blows up if the directory already exists (I want to silently
|
|
# succeed in that case).
|
|
def _mkpath(name, mode=0o777, verbose=True, dry_run=False):
|
|
# Detect a common bug -- name is None
|
|
if not isinstance(name, str):
|
|
raise PackagingInternalError(
|
|
"mkpath: 'name' must be a string (got %r)" % (name,))
|
|
|
|
# XXX what's the better way to handle verbosity? print as we create
|
|
# each directory in the path (the current behaviour), or only announce
|
|
# the creation of the whole path? (quite easy to do the latter since
|
|
# we're not using a recursive algorithm)
|
|
|
|
name = os.path.normpath(name)
|
|
created_dirs = []
|
|
if os.path.isdir(name) or name == '':
|
|
return created_dirs
|
|
if os.path.abspath(name) in _path_created:
|
|
return created_dirs
|
|
|
|
head, tail = os.path.split(name)
|
|
tails = [tail] # stack of lone dirs to create
|
|
|
|
while head and tail and not os.path.isdir(head):
|
|
head, tail = os.path.split(head)
|
|
tails.insert(0, tail) # push next higher dir onto stack
|
|
|
|
# now 'head' contains the deepest directory that already exists
|
|
# (that is, the child of 'head' in 'name' is the highest directory
|
|
# that does *not* exist)
|
|
for d in tails:
|
|
head = os.path.join(head, d)
|
|
abs_head = os.path.abspath(head)
|
|
|
|
if abs_head in _path_created:
|
|
continue
|
|
|
|
if verbose >= 1:
|
|
logger.info("creating %s", head)
|
|
|
|
if not dry_run:
|
|
try:
|
|
os.mkdir(head, mode)
|
|
except OSError as exc:
|
|
if not (exc.errno == errno.EEXIST and os.path.isdir(head)):
|
|
raise PackagingFileError(
|
|
"could not create '%s': %s" % (head, exc.args[-1]))
|
|
created_dirs.append(head)
|
|
|
|
_path_created.add(abs_head)
|
|
return created_dirs
|