Add server version to master api

Add IsEvadedOffense to EFPenalty
Fix remote log reading in not Windows

Master/env_master/Lib/site-packages/pip/wheel.py

@@ -0,0 +1,853 @@
+"""
+Support for installing and building the "wheel" binary package format.
+"""
+from __future__ import absolute_import
+
+import compileall
+import csv
+import errno
+import functools
+import hashlib
+import logging
+import os
+import os.path
+import re
+import shutil
+import stat
+import sys
+import tempfile
+import warnings
+
+from base64 import urlsafe_b64encode
+from email.parser import Parser
+
+from pip._vendor.six import StringIO
+
+import pip
+from pip.compat import expanduser
+from pip.download import path_to_url, unpack_url
+from pip.exceptions import (
+    InstallationError, InvalidWheelFilename, UnsupportedWheel)
+from pip.locations import distutils_scheme, PIP_DELETE_MARKER_FILENAME
+from pip import pep425tags
+from pip.utils import (
+    call_subprocess, ensure_dir, captured_stdout, rmtree, read_chunks,
+)
+from pip.utils.ui import open_spinner
+from pip.utils.logging import indent_log
+from pip.utils.setuptools_build import SETUPTOOLS_SHIM
+from pip._vendor.distlib.scripts import ScriptMaker
+from pip._vendor import pkg_resources
+from pip._vendor.packaging.utils import canonicalize_name
+from pip._vendor.six.moves import configparser
+
+
+wheel_ext = '.whl'
+
+VERSION_COMPATIBLE = (1, 0)
+
+
+logger = logging.getLogger(__name__)
+
+
+class WheelCache(object):
+    """A cache of wheels for future installs."""
+
+    def __init__(self, cache_dir, format_control):
+        """Create a wheel cache.
+
+        :param cache_dir: The root of the cache.
+        :param format_control: A pip.index.FormatControl object to limit
+            binaries being read from the cache.
+        """
+        self._cache_dir = expanduser(cache_dir) if cache_dir else None
+        self._format_control = format_control
+
+    def cached_wheel(self, link, package_name):
+        return cached_wheel(
+            self._cache_dir, link, self._format_control, package_name)
+
+
+def _cache_for_link(cache_dir, link):
+    """
+    Return a directory to store cached wheels in for link.
+
+    Because there are M wheels for any one sdist, we provide a directory
+    to cache them in, and then consult that directory when looking up
+    cache hits.
+
+    We only insert things into the cache if they have plausible version
+    numbers, so that we don't contaminate the cache with things that were not
+    unique. E.g. ./package might have dozens of installs done for it and build
+    a version of 0.0...and if we built and cached a wheel, we'd end up using
+    the same wheel even if the source has been edited.
+
+    :param cache_dir: The cache_dir being used by pip.
+    :param link: The link of the sdist for which this will cache wheels.
+    """
+
+    # We want to generate an url to use as our cache key, we don't want to just
+    # re-use the URL because it might have other items in the fragment and we
+    # don't care about those.
+    key_parts = [link.url_without_fragment]
+    if link.hash_name is not None and link.hash is not None:
+        key_parts.append("=".join([link.hash_name, link.hash]))
+    key_url = "#".join(key_parts)
+
+    # Encode our key url with sha224, we'll use this because it has similar
+    # security properties to sha256, but with a shorter total output (and thus
+    # less secure). However the differences don't make a lot of difference for
+    # our use case here.
+    hashed = hashlib.sha224(key_url.encode()).hexdigest()
+
+    # We want to nest the directories some to prevent having a ton of top level
+    # directories where we might run out of sub directories on some FS.
+    parts = [hashed[:2], hashed[2:4], hashed[4:6], hashed[6:]]
+
+    # Inside of the base location for cached wheels, expand our parts and join
+    # them all together.
+    return os.path.join(cache_dir, "wheels", *parts)
+
+
+def cached_wheel(cache_dir, link, format_control, package_name):
+    if not cache_dir:
+        return link
+    if not link:
+        return link
+    if link.is_wheel:
+        return link
+    if not link.is_artifact:
+        return link
+    if not package_name:
+        return link
+    canonical_name = canonicalize_name(package_name)
+    formats = pip.index.fmt_ctl_formats(format_control, canonical_name)
+    if "binary" not in formats:
+        return link
+    root = _cache_for_link(cache_dir, link)
+    try:
+        wheel_names = os.listdir(root)
+    except OSError as e:
+        if e.errno in (errno.ENOENT, errno.ENOTDIR):
+            return link
+        raise
+    candidates = []
+    for wheel_name in wheel_names:
+        try:
+            wheel = Wheel(wheel_name)
+        except InvalidWheelFilename:
+            continue
+        if not wheel.supported():
+            # Built for a different python/arch/etc
+            continue
+        candidates.append((wheel.support_index_min(), wheel_name))
+    if not candidates:
+        return link
+    candidates.sort()
+    path = os.path.join(root, candidates[0][1])
+    return pip.index.Link(path_to_url(path))
+
+
+def rehash(path, algo='sha256', blocksize=1 << 20):
+    """Return (hash, length) for path using hashlib.new(algo)"""
+    h = hashlib.new(algo)
+    length = 0
+    with open(path, 'rb') as f:
+        for block in read_chunks(f, size=blocksize):
+            length += len(block)
+            h.update(block)
+    digest = 'sha256=' + urlsafe_b64encode(
+        h.digest()
+    ).decode('latin1').rstrip('=')
+    return (digest, length)
+
+
+def open_for_csv(name, mode):
+    if sys.version_info[0] < 3:
+        nl = {}
+        bin = 'b'
+    else:
+        nl = {'newline': ''}
+        bin = ''
+    return open(name, mode + bin, **nl)
+
+
+def fix_script(path):
+    """Replace #!python with #!/path/to/python
+    Return True if file was changed."""
+    # XXX RECORD hashes will need to be updated
+    if os.path.isfile(path):
+        with open(path, 'rb') as script:
+            firstline = script.readline()
+            if not firstline.startswith(b'#!python'):
+                return False
+            exename = sys.executable.encode(sys.getfilesystemencoding())
+            firstline = b'#!' + exename + os.linesep.encode("ascii")
+            rest = script.read()
+        with open(path, 'wb') as script:
+            script.write(firstline)
+            script.write(rest)
+        return True
+
+dist_info_re = re.compile(r"""^(?P<namever>(?P<name>.+?)(-(?P<ver>\d.+?))?)
+                                \.dist-info$""", re.VERBOSE)
+
+
+def root_is_purelib(name, wheeldir):
+    """
+    Return True if the extracted wheel in wheeldir should go into purelib.
+    """
+    name_folded = name.replace("-", "_")
+    for item in os.listdir(wheeldir):
+        match = dist_info_re.match(item)
+        if match and match.group('name') == name_folded:
+            with open(os.path.join(wheeldir, item, 'WHEEL')) as wheel:
+                for line in wheel:
+                    line = line.lower().rstrip()
+                    if line == "root-is-purelib: true":
+                        return True
+    return False
+
+
+def get_entrypoints(filename):
+    if not os.path.exists(filename):
+        return {}, {}
+
+    # This is done because you can pass a string to entry_points wrappers which
+    # means that they may or may not be valid INI files. The attempt here is to
+    # strip leading and trailing whitespace in order to make them valid INI
+    # files.
+    with open(filename) as fp:
+        data = StringIO()
+        for line in fp:
+            data.write(line.strip())
+            data.write("\n")
+        data.seek(0)
+
+    cp = configparser.RawConfigParser()
+    cp.optionxform = lambda option: option
+    cp.readfp(data)
+
+    console = {}
+    gui = {}
+    if cp.has_section('console_scripts'):
+        console = dict(cp.items('console_scripts'))
+    if cp.has_section('gui_scripts'):
+        gui = dict(cp.items('gui_scripts'))
+    return console, gui
+
+
+def move_wheel_files(name, req, wheeldir, user=False, home=None, root=None,
+                     pycompile=True, scheme=None, isolated=False, prefix=None):
+    """Install a wheel"""
+
+    if not scheme:
+        scheme = distutils_scheme(
+            name, user=user, home=home, root=root, isolated=isolated,
+            prefix=prefix,
+        )
+
+    if root_is_purelib(name, wheeldir):
+        lib_dir = scheme['purelib']
+    else:
+        lib_dir = scheme['platlib']
+
+    info_dir = []
+    data_dirs = []
+    source = wheeldir.rstrip(os.path.sep) + os.path.sep
+
+    # Record details of the files moved
+    #   installed = files copied from the wheel to the destination
+    #   changed = files changed while installing (scripts #! line typically)
+    #   generated = files newly generated during the install (script wrappers)
+    installed = {}
+    changed = set()
+    generated = []
+
+    # Compile all of the pyc files that we're going to be installing
+    if pycompile:
+        with captured_stdout() as stdout:
+            with warnings.catch_warnings():
+                warnings.filterwarnings('ignore')
+                compileall.compile_dir(source, force=True, quiet=True)
+        logger.debug(stdout.getvalue())
+
+    def normpath(src, p):
+        return os.path.relpath(src, p).replace(os.path.sep, '/')
+
+    def record_installed(srcfile, destfile, modified=False):
+        """Map archive RECORD paths to installation RECORD paths."""
+        oldpath = normpath(srcfile, wheeldir)
+        newpath = normpath(destfile, lib_dir)
+        installed[oldpath] = newpath
+        if modified:
+            changed.add(destfile)
+
+    def clobber(source, dest, is_base, fixer=None, filter=None):
+        ensure_dir(dest)  # common for the 'include' path
+
+        for dir, subdirs, files in os.walk(source):
+            basedir = dir[len(source):].lstrip(os.path.sep)
+            destdir = os.path.join(dest, basedir)
+            if is_base and basedir.split(os.path.sep, 1)[0].endswith('.data'):
+                continue
+            for s in subdirs:
+                destsubdir = os.path.join(dest, basedir, s)
+                if is_base and basedir == '' and destsubdir.endswith('.data'):
+                    data_dirs.append(s)
+                    continue
+                elif (is_base and
+                        s.endswith('.dist-info') and
+                        canonicalize_name(s).startswith(
+                            canonicalize_name(req.name))):
+                    assert not info_dir, ('Multiple .dist-info directories: ' +
+                                          destsubdir + ', ' +
+                                          ', '.join(info_dir))
+                    info_dir.append(destsubdir)
+            for f in files:
+                # Skip unwanted files
+                if filter and filter(f):
+                    continue
+                srcfile = os.path.join(dir, f)
+                destfile = os.path.join(dest, basedir, f)
+                # directory creation is lazy and after the file filtering above
+                # to ensure we don't install empty dirs; empty dirs can't be
+                # uninstalled.
+                ensure_dir(destdir)
+
+                # We use copyfile (not move, copy, or copy2) to be extra sure
+                # that we are not moving directories over (copyfile fails for
+                # directories) as well as to ensure that we are not copying
+                # over any metadata because we want more control over what
+                # metadata we actually copy over.
+                shutil.copyfile(srcfile, destfile)
+
+                # Copy over the metadata for the file, currently this only
+                # includes the atime and mtime.
+                st = os.stat(srcfile)
+                if hasattr(os, "utime"):
+                    os.utime(destfile, (st.st_atime, st.st_mtime))
+
+                # If our file is executable, then make our destination file
+                # executable.
+                if os.access(srcfile, os.X_OK):
+                    st = os.stat(srcfile)
+                    permissions = (
+                        st.st_mode | stat.S_IXUSR | stat.S_IXGRP | stat.S_IXOTH
+                    )
+                    os.chmod(destfile, permissions)
+
+                changed = False
+                if fixer:
+                    changed = fixer(destfile)
+                record_installed(srcfile, destfile, changed)
+
+    clobber(source, lib_dir, True)
+
+    assert info_dir, "%s .dist-info directory not found" % req
+
+    # Get the defined entry points
+    ep_file = os.path.join(info_dir[0], 'entry_points.txt')
+    console, gui = get_entrypoints(ep_file)
+
+    def is_entrypoint_wrapper(name):
+        # EP, EP.exe and EP-script.py are scripts generated for
+        # entry point EP by setuptools
+        if name.lower().endswith('.exe'):
+            matchname = name[:-4]
+        elif name.lower().endswith('-script.py'):
+            matchname = name[:-10]
+        elif name.lower().endswith(".pya"):
+            matchname = name[:-4]
+        else:
+            matchname = name
+        # Ignore setuptools-generated scripts
+        return (matchname in console or matchname in gui)
+
+    for datadir in data_dirs:
+        fixer = None
+        filter = None
+        for subdir in os.listdir(os.path.join(wheeldir, datadir)):
+            fixer = None
+            if subdir == 'scripts':
+                fixer = fix_script
+                filter = is_entrypoint_wrapper
+            source = os.path.join(wheeldir, datadir, subdir)
+            dest = scheme[subdir]
+            clobber(source, dest, False, fixer=fixer, filter=filter)
+
+    maker = ScriptMaker(None, scheme['scripts'])
+
+    # Ensure old scripts are overwritten.
+    # See https://github.com/pypa/pip/issues/1800
+    maker.clobber = True
+
+    # Ensure we don't generate any variants for scripts because this is almost
+    # never what somebody wants.
+    # See https://bitbucket.org/pypa/distlib/issue/35/
+    maker.variants = set(('', ))
+
+    # This is required because otherwise distlib creates scripts that are not
+    # executable.
+    # See https://bitbucket.org/pypa/distlib/issue/32/
+    maker.set_mode = True
+
+    # Simplify the script and fix the fact that the default script swallows
+    # every single stack trace.
+    # See https://bitbucket.org/pypa/distlib/issue/34/
+    # See https://bitbucket.org/pypa/distlib/issue/33/
+    def _get_script_text(entry):
+        if entry.suffix is None:
+            raise InstallationError(
+                "Invalid script entry point: %s for req: %s - A callable "
+                "suffix is required. Cf https://packaging.python.org/en/"
+                "latest/distributing.html#console-scripts for more "
+                "information." % (entry, req)
+            )
+        return maker.script_template % {
+            "module": entry.prefix,
+            "import_name": entry.suffix.split(".")[0],
+            "func": entry.suffix,
+        }
+
+    maker._get_script_text = _get_script_text
+    maker.script_template = """# -*- coding: utf-8 -*-
+import re
+import sys
+
+from %(module)s import %(import_name)s
+
+if __name__ == '__main__':
+    sys.argv[0] = re.sub(r'(-script\.pyw?|\.exe)?$', '', sys.argv[0])
+    sys.exit(%(func)s())
+"""
+
+    # Special case pip and setuptools to generate versioned wrappers
+    #
+    # The issue is that some projects (specifically, pip and setuptools) use
+    # code in setup.py to create "versioned" entry points - pip2.7 on Python
+    # 2.7, pip3.3 on Python 3.3, etc. But these entry points are baked into
+    # the wheel metadata at build time, and so if the wheel is installed with
+    # a *different* version of Python the entry points will be wrong. The
+    # correct fix for this is to enhance the metadata to be able to describe
+    # such versioned entry points, but that won't happen till Metadata 2.0 is
+    # available.
+    # In the meantime, projects using versioned entry points will either have
+    # incorrect versioned entry points, or they will not be able to distribute
+    # "universal" wheels (i.e., they will need a wheel per Python version).
+    #
+    # Because setuptools and pip are bundled with _ensurepip and virtualenv,
+    # we need to use universal wheels. So, as a stopgap until Metadata 2.0, we
+    # override the versioned entry points in the wheel and generate the
+    # correct ones. This code is purely a short-term measure until Metadata 2.0
+    # is available.
+    #
+    # To add the level of hack in this section of code, in order to support
+    # ensurepip this code will look for an ``ENSUREPIP_OPTIONS`` environment
+    # variable which will control which version scripts get installed.
+    #
+    # ENSUREPIP_OPTIONS=altinstall
+    #   - Only pipX.Y and easy_install-X.Y will be generated and installed
+    # ENSUREPIP_OPTIONS=install
+    #   - pipX.Y, pipX, easy_install-X.Y will be generated and installed. Note
+    #     that this option is technically if ENSUREPIP_OPTIONS is set and is
+    #     not altinstall
+    # DEFAULT
+    #   - The default behavior is to install pip, pipX, pipX.Y, easy_install
+    #     and easy_install-X.Y.
+    pip_script = console.pop('pip', None)
+    if pip_script:
+        if "ENSUREPIP_OPTIONS" not in os.environ:
+            spec = 'pip = ' + pip_script
+            generated.extend(maker.make(spec))
+
+        if os.environ.get("ENSUREPIP_OPTIONS", "") != "altinstall":
+            spec = 'pip%s = %s' % (sys.version[:1], pip_script)
+            generated.extend(maker.make(spec))
+
+        spec = 'pip%s = %s' % (sys.version[:3], pip_script)
+        generated.extend(maker.make(spec))
+        # Delete any other versioned pip entry points
+        pip_ep = [k for k in console if re.match(r'pip(\d(\.\d)?)?$', k)]
+        for k in pip_ep:
+            del console[k]
+    easy_install_script = console.pop('easy_install', None)
+    if easy_install_script:
+        if "ENSUREPIP_OPTIONS" not in os.environ:
+            spec = 'easy_install = ' + easy_install_script
+            generated.extend(maker.make(spec))
+
+        spec = 'easy_install-%s = %s' % (sys.version[:3], easy_install_script)
+        generated.extend(maker.make(spec))
+        # Delete any other versioned easy_install entry points
+        easy_install_ep = [
+            k for k in console if re.match(r'easy_install(-\d\.\d)?$', k)
+        ]
+        for k in easy_install_ep:
+            del console[k]
+
+    # Generate the console and GUI entry points specified in the wheel
+    if len(console) > 0:
+        generated.extend(
+            maker.make_multiple(['%s = %s' % kv for kv in console.items()])
+        )
+    if len(gui) > 0:
+        generated.extend(
+            maker.make_multiple(
+                ['%s = %s' % kv for kv in gui.items()],
+                {'gui': True}
+            )
+        )
+
+    # Record pip as the installer
+    installer = os.path.join(info_dir[0], 'INSTALLER')
+    temp_installer = os.path.join(info_dir[0], 'INSTALLER.pip')
+    with open(temp_installer, 'wb') as installer_file:
+        installer_file.write(b'pip\n')
+    shutil.move(temp_installer, installer)
+    generated.append(installer)
+
+    # Record details of all files installed
+    record = os.path.join(info_dir[0], 'RECORD')
+    temp_record = os.path.join(info_dir[0], 'RECORD.pip')
+    with open_for_csv(record, 'r') as record_in:
+        with open_for_csv(temp_record, 'w+') as record_out:
+            reader = csv.reader(record_in)
+            writer = csv.writer(record_out)
+            for row in reader:
+                row[0] = installed.pop(row[0], row[0])
+                if row[0] in changed:
+                    row[1], row[2] = rehash(row[0])
+                writer.writerow(row)
+            for f in generated:
+                h, l = rehash(f)
+                writer.writerow((normpath(f, lib_dir), h, l))
+            for f in installed:
+                writer.writerow((installed[f], '', ''))
+    shutil.move(temp_record, record)
+
+
+def _unique(fn):
+    @functools.wraps(fn)
+    def unique(*args, **kw):
+        seen = set()
+        for item in fn(*args, **kw):
+            if item not in seen:
+                seen.add(item)
+                yield item
+    return unique
+
+
+# TODO: this goes somewhere besides the wheel module
+@_unique
+def uninstallation_paths(dist):
+    """
+    Yield all the uninstallation paths for dist based on RECORD-without-.pyc
+
+    Yield paths to all the files in RECORD. For each .py file in RECORD, add
+    the .pyc in the same directory.
+
+    UninstallPathSet.add() takes care of the __pycache__ .pyc.
+    """
+    from pip.utils import FakeFile  # circular import
+    r = csv.reader(FakeFile(dist.get_metadata_lines('RECORD')))
+    for row in r:
+        path = os.path.join(dist.location, row[0])
+        yield path
+        if path.endswith('.py'):
+            dn, fn = os.path.split(path)
+            base = fn[:-3]
+            path = os.path.join(dn, base + '.pyc')
+            yield path
+
+
+def wheel_version(source_dir):
+    """
+    Return the Wheel-Version of an extracted wheel, if possible.
+
+    Otherwise, return False if we couldn't parse / extract it.
+    """
+    try:
+        dist = [d for d in pkg_resources.find_on_path(None, source_dir)][0]
+
+        wheel_data = dist.get_metadata('WHEEL')
+        wheel_data = Parser().parsestr(wheel_data)
+
+        version = wheel_data['Wheel-Version'].strip()
+        version = tuple(map(int, version.split('.')))
+        return version
+    except:
+        return False
+
+
+def check_compatibility(version, name):
+    """
+    Raises errors or warns if called with an incompatible Wheel-Version.
+
+    Pip should refuse to install a Wheel-Version that's a major series
+    ahead of what it's compatible with (e.g 2.0 > 1.1); and warn when
+    installing a version only minor version ahead (e.g 1.2 > 1.1).
+
+    version: a 2-tuple representing a Wheel-Version (Major, Minor)
+    name: name of wheel or package to raise exception about
+
+    :raises UnsupportedWheel: when an incompatible Wheel-Version is given
+    """
+    if not version:
+        raise UnsupportedWheel(
+            "%s is in an unsupported or invalid wheel" % name
+        )
+    if version[0] > VERSION_COMPATIBLE[0]:
+        raise UnsupportedWheel(
+            "%s's Wheel-Version (%s) is not compatible with this version "
+            "of pip" % (name, '.'.join(map(str, version)))
+        )
+    elif version > VERSION_COMPATIBLE:
+        logger.warning(
+            'Installing from a newer Wheel-Version (%s)',
+            '.'.join(map(str, version)),
+        )
+
+
+class Wheel(object):
+    """A wheel file"""
+
+    # TODO: maybe move the install code into this class
+
+    wheel_file_re = re.compile(
+        r"""^(?P<namever>(?P<name>.+?)-(?P<ver>\d.*?))
+        ((-(?P<build>\d.*?))?-(?P<pyver>.+?)-(?P<abi>.+?)-(?P<plat>.+?)
+        \.whl|\.dist-info)$""",
+        re.VERBOSE
+    )
+
+    def __init__(self, filename):
+        """
+        :raises InvalidWheelFilename: when the filename is invalid for a wheel
+        """
+        wheel_info = self.wheel_file_re.match(filename)
+        if not wheel_info:
+            raise InvalidWheelFilename(
+                "%s is not a valid wheel filename." % filename
+            )
+        self.filename = filename
+        self.name = wheel_info.group('name').replace('_', '-')
+        # we'll assume "_" means "-" due to wheel naming scheme
+        # (https://github.com/pypa/pip/issues/1150)
+        self.version = wheel_info.group('ver').replace('_', '-')
+        self.pyversions = wheel_info.group('pyver').split('.')
+        self.abis = wheel_info.group('abi').split('.')
+        self.plats = wheel_info.group('plat').split('.')
+
+        # All the tag combinations from this file
+        self.file_tags = set(
+            (x, y, z) for x in self.pyversions
+            for y in self.abis for z in self.plats
+        )
+
+    def support_index_min(self, tags=None):
+        """
+        Return the lowest index that one of the wheel's file_tag combinations
+        achieves in the supported_tags list e.g. if there are 8 supported tags,
+        and one of the file tags is first in the list, then return 0.  Returns
+        None is the wheel is not supported.
+        """
+        if tags is None:  # for mock
+            tags = pep425tags.supported_tags
+        indexes = [tags.index(c) for c in self.file_tags if c in tags]
+        return min(indexes) if indexes else None
+
+    def supported(self, tags=None):
+        """Is this wheel supported on this system?"""
+        if tags is None:  # for mock
+            tags = pep425tags.supported_tags
+        return bool(set(tags).intersection(self.file_tags))
+
+
+class WheelBuilder(object):
+    """Build wheels from a RequirementSet."""
+
+    def __init__(self, requirement_set, finder, build_options=None,
+                 global_options=None):
+        self.requirement_set = requirement_set
+        self.finder = finder
+        self._cache_root = requirement_set._wheel_cache._cache_dir
+        self._wheel_dir = requirement_set.wheel_download_dir
+        self.build_options = build_options or []
+        self.global_options = global_options or []
+
+    def _build_one(self, req, output_dir, python_tag=None):
+        """Build one wheel.
+
+        :return: The filename of the built wheel, or None if the build failed.
+        """
+        tempd = tempfile.mkdtemp('pip-wheel-')
+        try:
+            if self.__build_one(req, tempd, python_tag=python_tag):
+                try:
+                    wheel_name = os.listdir(tempd)[0]
+                    wheel_path = os.path.join(output_dir, wheel_name)
+                    shutil.move(os.path.join(tempd, wheel_name), wheel_path)
+                    logger.info('Stored in directory: %s', output_dir)
+                    return wheel_path
+                except:
+                    pass
+            # Ignore return, we can't do anything else useful.
+            self._clean_one(req)
+            return None
+        finally:
+            rmtree(tempd)
+
+    def _base_setup_args(self, req):
+        return [
+            sys.executable, "-u", '-c',
+            SETUPTOOLS_SHIM % req.setup_py
+        ] + list(self.global_options)
+
+    def __build_one(self, req, tempd, python_tag=None):
+        base_args = self._base_setup_args(req)
+
+        spin_message = 'Running setup.py bdist_wheel for %s' % (req.name,)
+        with open_spinner(spin_message) as spinner:
+            logger.debug('Destination directory: %s', tempd)
+            wheel_args = base_args + ['bdist_wheel', '-d', tempd] \
+                + self.build_options
+
+            if python_tag is not None:
+                wheel_args += ["--python-tag", python_tag]
+
+            try:
+                call_subprocess(wheel_args, cwd=req.setup_py_dir,
+                                show_stdout=False, spinner=spinner)
+                return True
+            except:
+                spinner.finish("error")
+                logger.error('Failed building wheel for %s', req.name)
+                return False
+
+    def _clean_one(self, req):
+        base_args = self._base_setup_args(req)
+
+        logger.info('Running setup.py clean for %s', req.name)
+        clean_args = base_args + ['clean', '--all']
+        try:
+            call_subprocess(clean_args, cwd=req.source_dir, show_stdout=False)
+            return True
+        except:
+            logger.error('Failed cleaning build dir for %s', req.name)
+            return False
+
+    def build(self, autobuilding=False):
+        """Build wheels.
+
+        :param unpack: If True, replace the sdist we built from with the
+            newly built wheel, in preparation for installation.
+        :return: True if all the wheels built correctly.
+        """
+        assert self._wheel_dir or (autobuilding and self._cache_root)
+        # unpack sdists and constructs req set
+        self.requirement_set.prepare_files(self.finder)
+
+        reqset = self.requirement_set.requirements.values()
+
+        buildset = []
+        for req in reqset:
+            if req.constraint:
+                continue
+            if req.is_wheel:
+                if not autobuilding:
+                    logger.info(
+                        'Skipping %s, due to already being wheel.', req.name)
+            elif autobuilding and req.editable:
+                pass
+            elif autobuilding and req.link and not req.link.is_artifact:
+                pass
+            elif autobuilding and not req.source_dir:
+                pass
+            else:
+                if autobuilding:
+                    link = req.link
+                    base, ext = link.splitext()
+                    if pip.index.egg_info_matches(base, None, link) is None:
+                        # Doesn't look like a package - don't autobuild a wheel
+                        # because we'll have no way to lookup the result sanely
+                        continue
+                    if "binary" not in pip.index.fmt_ctl_formats(
+                            self.finder.format_control,
+                            canonicalize_name(req.name)):
+                        logger.info(
+                            "Skipping bdist_wheel for %s, due to binaries "
+                            "being disabled for it.", req.name)
+                        continue
+                buildset.append(req)
+
+        if not buildset:
+            return True
+
+        # Build the wheels.
+        logger.info(
+            'Building wheels for collected packages: %s',
+            ', '.join([req.name for req in buildset]),
+        )
+        with indent_log():
+            build_success, build_failure = [], []
+            for req in buildset:
+                python_tag = None
+                if autobuilding:
+                    python_tag = pep425tags.implementation_tag
+                    output_dir = _cache_for_link(self._cache_root, req.link)
+                    try:
+                        ensure_dir(output_dir)
+                    except OSError as e:
+                        logger.warning("Building wheel for %s failed: %s",
+                                       req.name, e)
+                        build_failure.append(req)
+                        continue
+                else:
+                    output_dir = self._wheel_dir
+                wheel_file = self._build_one(
+                    req, output_dir,
+                    python_tag=python_tag,
+                )
+                if wheel_file:
+                    build_success.append(req)
+                    if autobuilding:
+                        # XXX: This is mildly duplicative with prepare_files,
+                        # but not close enough to pull out to a single common
+                        # method.
+                        # The code below assumes temporary source dirs -
+                        # prevent it doing bad things.
+                        if req.source_dir and not os.path.exists(os.path.join(
+                                req.source_dir, PIP_DELETE_MARKER_FILENAME)):
+                            raise AssertionError(
+                                "bad source dir - missing marker")
+                        # Delete the source we built the wheel from
+                        req.remove_temporary_source()
+                        # set the build directory again - name is known from
+                        # the work prepare_files did.
+                        req.source_dir = req.build_location(
+                            self.requirement_set.build_dir)
+                        # Update the link for this.
+                        req.link = pip.index.Link(
+                            path_to_url(wheel_file))
+                        assert req.link.is_wheel
+                        # extract the wheel into the dir
+                        unpack_url(
+                            req.link, req.source_dir, None, False,
+                            session=self.requirement_set.session)
+                else:
+                    build_failure.append(req)
+
+        # notify success/failure
+        if build_success:
+            logger.info(
+                'Successfully built %s',
+                ' '.join([req.name for req in build_success]),
+            )
+        if build_failure:
+            logger.info(
+                'Failed to build %s',
+                ' '.join([req.name for req in build_failure]),
+            )
+        # Return True if all builds were successful
+        return len(build_failure) == 0