1931 lines
82 KiB
Python
1931 lines
82 KiB
Python
from email.parser import FeedParser
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import os
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import imp
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import locale
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import re
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import sys
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import shutil
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import tempfile
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import textwrap
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import zipfile
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from distutils.util import change_root
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from pip.locations import (bin_py, running_under_virtualenv,PIP_DELETE_MARKER_FILENAME,
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write_delete_marker_file, bin_user)
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from pip.exceptions import (InstallationError, UninstallationError, UnsupportedWheel,
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BestVersionAlreadyInstalled, InvalidWheelFilename,
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DistributionNotFound, PreviousBuildDirError)
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from pip.vcs import vcs
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from pip.log import logger
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from pip.util import (display_path, rmtree, ask, ask_path_exists, backup_dir,
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is_installable_dir, is_local, dist_is_local,
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dist_in_usersite, dist_in_site_packages, renames,
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normalize_path, egg_link_path, make_path_relative,
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call_subprocess, is_prerelease, normalize_name)
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from pip.backwardcompat import (urlparse, urllib, uses_pycache,
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ConfigParser, string_types, HTTPError,
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get_python_version, b)
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from pip.index import Link
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from pip.locations import build_prefix
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from pip.download import (PipSession, get_file_content, is_url, url_to_path,
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path_to_url, is_archive_file,
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unpack_vcs_link, is_vcs_url, is_file_url,
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unpack_file_url, unpack_http_url)
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import pip.wheel
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from pip.wheel import move_wheel_files, Wheel, wheel_ext
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from pip._vendor import pkg_resources, six
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def read_text_file(filename):
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"""Return the contents of *filename*.
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Try to decode the file contents with utf-8, the preffered system encoding
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(e.g., cp1252 on some Windows machines) and latin1, in that order. Decoding
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a byte string with latin1 will never raise an error. In the worst case, the
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returned string will contain some garbage characters.
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"""
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with open(filename, 'rb') as fp:
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data = fp.read()
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encodings = ['utf-8', locale.getpreferredencoding(False), 'latin1']
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for enc in encodings:
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try:
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data = data.decode(enc)
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except UnicodeDecodeError:
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continue
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break
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assert type(data) != bytes # Latin1 should have worked.
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return data
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class InstallRequirement(object):
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def __init__(self, req, comes_from, source_dir=None, editable=False,
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url=None, as_egg=False, update=True, prereleases=None,
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editable_options=None, from_bundle=False, pycompile=True):
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self.extras = ()
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if isinstance(req, string_types):
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req = pkg_resources.Requirement.parse(req)
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self.extras = req.extras
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self.req = req
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self.comes_from = comes_from
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self.source_dir = source_dir
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self.editable = editable
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if editable_options is None:
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editable_options = {}
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self.editable_options = editable_options
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self.url = url
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self.as_egg = as_egg
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self._egg_info_path = None
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# This holds the pkg_resources.Distribution object if this requirement
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# is already available:
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self.satisfied_by = None
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# This hold the pkg_resources.Distribution object if this requirement
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# conflicts with another installed distribution:
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self.conflicts_with = None
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self._temp_build_dir = None
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self._is_bundle = None
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# True if the editable should be updated:
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self.update = update
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# Set to True after successful installation
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self.install_succeeded = None
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# UninstallPathSet of uninstalled distribution (for possible rollback)
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self.uninstalled = None
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self.use_user_site = False
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self.target_dir = None
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self.from_bundle = from_bundle
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self.pycompile = pycompile
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# True if pre-releases are acceptable
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if prereleases:
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self.prereleases = True
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elif self.req is not None:
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self.prereleases = any([is_prerelease(x[1]) and x[0] != "!=" for x in self.req.specs])
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else:
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self.prereleases = False
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@classmethod
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def from_editable(cls, editable_req, comes_from=None, default_vcs=None):
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name, url, extras_override = parse_editable(editable_req, default_vcs)
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if url.startswith('file:'):
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source_dir = url_to_path(url)
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else:
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source_dir = None
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res = cls(name, comes_from, source_dir=source_dir,
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editable=True,
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url=url,
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editable_options=extras_override,
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prereleases=True)
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if extras_override is not None:
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res.extras = extras_override
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return res
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@classmethod
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def from_line(cls, name, comes_from=None, prereleases=None):
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"""Creates an InstallRequirement from a name, which might be a
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requirement, directory containing 'setup.py', filename, or URL.
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"""
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url = None
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name = name.strip()
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req = None
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path = os.path.normpath(os.path.abspath(name))
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link = None
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if is_url(name):
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link = Link(name)
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elif os.path.isdir(path) and (os.path.sep in name or name.startswith('.')):
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if not is_installable_dir(path):
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raise InstallationError("Directory %r is not installable. File 'setup.py' not found." % name)
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link = Link(path_to_url(name))
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elif is_archive_file(path):
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if not os.path.isfile(path):
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logger.warn('Requirement %r looks like a filename, but the file does not exist', name)
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link = Link(path_to_url(name))
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# If the line has an egg= definition, but isn't editable, pull the requirement out.
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# Otherwise, assume the name is the req for the non URL/path/archive case.
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if link and req is None:
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url = link.url_without_fragment
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req = link.egg_fragment #when fragment is None, this will become an 'unnamed' requirement
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# Handle relative file URLs
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if link.scheme == 'file' and re.search(r'\.\./', url):
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url = path_to_url(os.path.normpath(os.path.abspath(link.path)))
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# fail early for invalid or unsupported wheels
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if link.ext == wheel_ext:
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wheel = Wheel(link.filename) # can raise InvalidWheelFilename
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if not wheel.supported():
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raise UnsupportedWheel("%s is not a supported wheel on this platform." % wheel.filename)
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else:
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req = name
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return cls(req, comes_from, url=url, prereleases=prereleases)
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def __str__(self):
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if self.req:
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s = str(self.req)
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if self.url:
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s += ' from %s' % self.url
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else:
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s = self.url
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if self.satisfied_by is not None:
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s += ' in %s' % display_path(self.satisfied_by.location)
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if self.comes_from:
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if isinstance(self.comes_from, string_types):
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comes_from = self.comes_from
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else:
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comes_from = self.comes_from.from_path()
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if comes_from:
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s += ' (from %s)' % comes_from
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return s
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def from_path(self):
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if self.req is None:
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return None
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s = str(self.req)
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if self.comes_from:
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if isinstance(self.comes_from, string_types):
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comes_from = self.comes_from
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else:
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comes_from = self.comes_from.from_path()
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if comes_from:
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s += '->' + comes_from
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return s
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def build_location(self, build_dir, unpack=True):
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if self._temp_build_dir is not None:
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return self._temp_build_dir
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if self.req is None:
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self._temp_build_dir = tempfile.mkdtemp('-build', 'pip-')
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self._ideal_build_dir = build_dir
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return self._temp_build_dir
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if self.editable:
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name = self.name.lower()
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else:
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name = self.name
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# FIXME: Is there a better place to create the build_dir? (hg and bzr need this)
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if not os.path.exists(build_dir):
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_make_build_dir(build_dir)
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return os.path.join(build_dir, name)
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def correct_build_location(self):
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"""If the build location was a temporary directory, this will move it
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to a new more permanent location"""
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if self.source_dir is not None:
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return
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assert self.req is not None
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assert self._temp_build_dir
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old_location = self._temp_build_dir
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new_build_dir = self._ideal_build_dir
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del self._ideal_build_dir
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if self.editable:
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name = self.name.lower()
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else:
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name = self.name
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new_location = os.path.join(new_build_dir, name)
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if not os.path.exists(new_build_dir):
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logger.debug('Creating directory %s' % new_build_dir)
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_make_build_dir(new_build_dir)
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if os.path.exists(new_location):
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raise InstallationError(
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'A package already exists in %s; please remove it to continue'
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% display_path(new_location))
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logger.debug('Moving package %s from %s to new location %s'
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% (self, display_path(old_location), display_path(new_location)))
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shutil.move(old_location, new_location)
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self._temp_build_dir = new_location
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self.source_dir = new_location
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self._egg_info_path = None
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@property
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def name(self):
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if self.req is None:
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return None
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return self.req.project_name
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@property
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def url_name(self):
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if self.req is None:
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return None
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return urllib.quote(self.req.unsafe_name)
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@property
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def setup_py(self):
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try:
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import setuptools
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except ImportError:
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# Setuptools is not available
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raise InstallationError(
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"setuptools must be installed to install from a source "
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"distribution"
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)
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setup_file = 'setup.py'
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if self.editable_options and 'subdirectory' in self.editable_options:
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setup_py = os.path.join(self.source_dir,
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self.editable_options['subdirectory'],
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setup_file)
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else:
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setup_py = os.path.join(self.source_dir, setup_file)
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# Python2 __file__ should not be unicode
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if six.PY2 and isinstance(setup_py, six.text_type):
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setup_py = setup_py.encode(sys.getfilesystemencoding())
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return setup_py
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def run_egg_info(self, force_root_egg_info=False):
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assert self.source_dir
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if self.name:
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logger.notify('Running setup.py (path:%s) egg_info for package %s' % (self.setup_py, self.name))
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else:
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logger.notify('Running setup.py (path:%s) egg_info for package from %s' % (self.setup_py, self.url))
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logger.indent += 2
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try:
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# if it's distribute>=0.7, it won't contain an importable
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# setuptools, and having an egg-info dir blocks the ability of
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# setup.py to find setuptools plugins, so delete the egg-info dir if
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# no setuptools. it will get recreated by the run of egg_info
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# NOTE: this self.name check only works when installing from a specifier
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# (not archive path/urls)
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# TODO: take this out later
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if self.name == 'distribute' and not os.path.isdir(os.path.join(self.source_dir, 'setuptools')):
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rmtree(os.path.join(self.source_dir, 'distribute.egg-info'))
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script = self._run_setup_py
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script = script.replace('__SETUP_PY__', repr(self.setup_py))
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script = script.replace('__PKG_NAME__', repr(self.name))
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egg_info_cmd = [sys.executable, '-c', script, 'egg_info']
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# We can't put the .egg-info files at the root, because then the source code will be mistaken
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# for an installed egg, causing problems
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if self.editable or force_root_egg_info:
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egg_base_option = []
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else:
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egg_info_dir = os.path.join(self.source_dir, 'pip-egg-info')
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if not os.path.exists(egg_info_dir):
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os.makedirs(egg_info_dir)
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egg_base_option = ['--egg-base', 'pip-egg-info']
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call_subprocess(
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egg_info_cmd + egg_base_option,
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cwd=self.source_dir, filter_stdout=self._filter_install, show_stdout=False,
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command_level=logger.VERBOSE_DEBUG,
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command_desc='python setup.py egg_info')
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finally:
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logger.indent -= 2
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if not self.req:
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self.req = pkg_resources.Requirement.parse(
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"%(Name)s==%(Version)s" % self.pkg_info())
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self.correct_build_location()
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## FIXME: This is a lame hack, entirely for PasteScript which has
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## a self-provided entry point that causes this awkwardness
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_run_setup_py = """
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__file__ = __SETUP_PY__
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from setuptools.command import egg_info
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import pkg_resources
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import os
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import tokenize
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def replacement_run(self):
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self.mkpath(self.egg_info)
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installer = self.distribution.fetch_build_egg
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for ep in pkg_resources.iter_entry_points('egg_info.writers'):
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# require=False is the change we're making:
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writer = ep.load(require=False)
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if writer:
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writer(self, ep.name, os.path.join(self.egg_info,ep.name))
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self.find_sources()
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egg_info.egg_info.run = replacement_run
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exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\\r\\n', '\\n'), __file__, 'exec'))
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"""
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def egg_info_data(self, filename):
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if self.satisfied_by is not None:
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if not self.satisfied_by.has_metadata(filename):
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return None
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return self.satisfied_by.get_metadata(filename)
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assert self.source_dir
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filename = self.egg_info_path(filename)
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if not os.path.exists(filename):
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return None
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data = read_text_file(filename)
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return data
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def egg_info_path(self, filename):
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if self._egg_info_path is None:
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if self.editable:
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base = self.source_dir
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else:
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base = os.path.join(self.source_dir, 'pip-egg-info')
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filenames = os.listdir(base)
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if self.editable:
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filenames = []
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for root, dirs, files in os.walk(base):
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for dir in vcs.dirnames:
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if dir in dirs:
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dirs.remove(dir)
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# Iterate over a copy of ``dirs``, since mutating
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# a list while iterating over it can cause trouble.
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# (See https://github.com/pypa/pip/pull/462.)
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for dir in list(dirs):
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# Don't search in anything that looks like a virtualenv environment
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if (os.path.exists(os.path.join(root, dir, 'bin', 'python'))
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or os.path.exists(os.path.join(root, dir, 'Scripts', 'Python.exe'))):
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dirs.remove(dir)
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# Also don't search through tests
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if dir == 'test' or dir == 'tests':
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dirs.remove(dir)
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filenames.extend([os.path.join(root, dir)
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for dir in dirs])
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filenames = [f for f in filenames if f.endswith('.egg-info')]
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|
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if not filenames:
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raise InstallationError('No files/directories in %s (from %s)' % (base, filename))
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assert filenames, "No files/directories in %s (from %s)" % (base, filename)
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# if we have more than one match, we pick the toplevel one. This can
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# easily be the case if there is a dist folder which contains an
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# extracted tarball for testing purposes.
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if len(filenames) > 1:
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filenames.sort(key=lambda x: x.count(os.path.sep) +
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(os.path.altsep and
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x.count(os.path.altsep) or 0))
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self._egg_info_path = os.path.join(base, filenames[0])
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return os.path.join(self._egg_info_path, filename)
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|
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def egg_info_lines(self, filename):
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data = self.egg_info_data(filename)
|
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if not data:
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return []
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result = []
|
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for line in data.splitlines():
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line = line.strip()
|
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if not line or line.startswith('#'):
|
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continue
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result.append(line)
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return result
|
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|
|
def pkg_info(self):
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p = FeedParser()
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data = self.egg_info_data('PKG-INFO')
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if not data:
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logger.warn('No PKG-INFO file found in %s' % display_path(self.egg_info_path('PKG-INFO')))
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p.feed(data or '')
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return p.close()
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|
|
|
@property
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|
def dependency_links(self):
|
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return self.egg_info_lines('dependency_links.txt')
|
|
|
|
_requirements_section_re = re.compile(r'\[(.*?)\]')
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|
|
|
def requirements(self, extras=()):
|
|
in_extra = None
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|
for line in self.egg_info_lines('requires.txt'):
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match = self._requirements_section_re.match(line.lower())
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if match:
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in_extra = match.group(1)
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continue
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|
if in_extra and in_extra not in extras:
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|
logger.debug('skipping extra %s' % in_extra)
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# Skip requirement for an extra we aren't requiring
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continue
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yield line
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|
|
@property
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|
def absolute_versions(self):
|
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for qualifier, version in self.req.specs:
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if qualifier == '==':
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yield version
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|
|
@property
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|
def installed_version(self):
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return self.pkg_info()['version']
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|
|
def assert_source_matches_version(self):
|
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assert self.source_dir
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version = self.installed_version
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|
if version not in self.req:
|
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logger.warn('Requested %s, but installing version %s' % (self, self.installed_version))
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|
else:
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|
logger.debug('Source in %s has version %s, which satisfies requirement %s'
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|
% (display_path(self.source_dir), version, self))
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|
|
def update_editable(self, obtain=True):
|
|
if not self.url:
|
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logger.info("Cannot update repository at %s; repository location is unknown" % self.source_dir)
|
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return
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assert self.editable
|
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assert self.source_dir
|
|
if self.url.startswith('file:'):
|
|
# Static paths don't get updated
|
|
return
|
|
assert '+' in self.url, "bad url: %r" % self.url
|
|
if not self.update:
|
|
return
|
|
vc_type, url = self.url.split('+', 1)
|
|
backend = vcs.get_backend(vc_type)
|
|
if backend:
|
|
vcs_backend = backend(self.url)
|
|
if obtain:
|
|
vcs_backend.obtain(self.source_dir)
|
|
else:
|
|
vcs_backend.export(self.source_dir)
|
|
else:
|
|
assert 0, (
|
|
'Unexpected version control type (in %s): %s'
|
|
% (self.url, vc_type))
|
|
|
|
def uninstall(self, auto_confirm=False):
|
|
"""
|
|
Uninstall the distribution currently satisfying this requirement.
|
|
|
|
Prompts before removing or modifying files unless
|
|
``auto_confirm`` is True.
|
|
|
|
Refuses to delete or modify files outside of ``sys.prefix`` -
|
|
thus uninstallation within a virtual environment can only
|
|
modify that virtual environment, even if the virtualenv is
|
|
linked to global site-packages.
|
|
|
|
"""
|
|
if not self.check_if_exists():
|
|
raise UninstallationError("Cannot uninstall requirement %s, not installed" % (self.name,))
|
|
dist = self.satisfied_by or self.conflicts_with
|
|
|
|
paths_to_remove = UninstallPathSet(dist)
|
|
|
|
pip_egg_info_path = os.path.join(dist.location,
|
|
dist.egg_name()) + '.egg-info'
|
|
dist_info_path = os.path.join(dist.location,
|
|
'-'.join(dist.egg_name().split('-')[:2])
|
|
) + '.dist-info'
|
|
# workaround for http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=618367
|
|
debian_egg_info_path = pip_egg_info_path.replace(
|
|
'-py%s' % pkg_resources.PY_MAJOR, '')
|
|
easy_install_egg = dist.egg_name() + '.egg'
|
|
develop_egg_link = egg_link_path(dist)
|
|
|
|
pip_egg_info_exists = os.path.exists(pip_egg_info_path)
|
|
debian_egg_info_exists = os.path.exists(debian_egg_info_path)
|
|
dist_info_exists = os.path.exists(dist_info_path)
|
|
if pip_egg_info_exists or debian_egg_info_exists:
|
|
# package installed by pip
|
|
if pip_egg_info_exists:
|
|
egg_info_path = pip_egg_info_path
|
|
else:
|
|
egg_info_path = debian_egg_info_path
|
|
paths_to_remove.add(egg_info_path)
|
|
if dist.has_metadata('installed-files.txt'):
|
|
for installed_file in dist.get_metadata('installed-files.txt').splitlines():
|
|
path = os.path.normpath(os.path.join(egg_info_path, installed_file))
|
|
paths_to_remove.add(path)
|
|
#FIXME: need a test for this elif block
|
|
#occurs with --single-version-externally-managed/--record outside of pip
|
|
elif dist.has_metadata('top_level.txt'):
|
|
if dist.has_metadata('namespace_packages.txt'):
|
|
namespaces = dist.get_metadata('namespace_packages.txt')
|
|
else:
|
|
namespaces = []
|
|
for top_level_pkg in [p for p
|
|
in dist.get_metadata('top_level.txt').splitlines()
|
|
if p and p not in namespaces]:
|
|
path = os.path.join(dist.location, top_level_pkg)
|
|
paths_to_remove.add(path)
|
|
paths_to_remove.add(path + '.py')
|
|
paths_to_remove.add(path + '.pyc')
|
|
|
|
elif dist.location.endswith(easy_install_egg):
|
|
# package installed by easy_install
|
|
paths_to_remove.add(dist.location)
|
|
easy_install_pth = os.path.join(os.path.dirname(dist.location),
|
|
'easy-install.pth')
|
|
paths_to_remove.add_pth(easy_install_pth, './' + easy_install_egg)
|
|
|
|
elif develop_egg_link:
|
|
# develop egg
|
|
fh = open(develop_egg_link, 'r')
|
|
link_pointer = os.path.normcase(fh.readline().strip())
|
|
fh.close()
|
|
assert (link_pointer == dist.location), 'Egg-link %s does not match installed location of %s (at %s)' % (link_pointer, self.name, dist.location)
|
|
paths_to_remove.add(develop_egg_link)
|
|
easy_install_pth = os.path.join(os.path.dirname(develop_egg_link),
|
|
'easy-install.pth')
|
|
paths_to_remove.add_pth(easy_install_pth, dist.location)
|
|
elif dist_info_exists:
|
|
for path in pip.wheel.uninstallation_paths(dist):
|
|
paths_to_remove.add(path)
|
|
|
|
# find distutils scripts= scripts
|
|
if dist.has_metadata('scripts') and dist.metadata_isdir('scripts'):
|
|
for script in dist.metadata_listdir('scripts'):
|
|
if dist_in_usersite(dist):
|
|
bin_dir = bin_user
|
|
else:
|
|
bin_dir = bin_py
|
|
paths_to_remove.add(os.path.join(bin_dir, script))
|
|
if sys.platform == 'win32':
|
|
paths_to_remove.add(os.path.join(bin_dir, script) + '.bat')
|
|
|
|
# find console_scripts
|
|
if dist.has_metadata('entry_points.txt'):
|
|
config = ConfigParser.SafeConfigParser()
|
|
config.readfp(FakeFile(dist.get_metadata_lines('entry_points.txt')))
|
|
if config.has_section('console_scripts'):
|
|
for name, value in config.items('console_scripts'):
|
|
if dist_in_usersite(dist):
|
|
bin_dir = bin_user
|
|
else:
|
|
bin_dir = bin_py
|
|
paths_to_remove.add(os.path.join(bin_dir, name))
|
|
if sys.platform == 'win32':
|
|
paths_to_remove.add(os.path.join(bin_dir, name) + '.exe')
|
|
paths_to_remove.add(os.path.join(bin_dir, name) + '.exe.manifest')
|
|
paths_to_remove.add(os.path.join(bin_dir, name) + '-script.py')
|
|
|
|
paths_to_remove.remove(auto_confirm)
|
|
self.uninstalled = paths_to_remove
|
|
|
|
def rollback_uninstall(self):
|
|
if self.uninstalled:
|
|
self.uninstalled.rollback()
|
|
else:
|
|
logger.error("Can't rollback %s, nothing uninstalled."
|
|
% (self.project_name,))
|
|
|
|
def commit_uninstall(self):
|
|
if self.uninstalled:
|
|
self.uninstalled.commit()
|
|
else:
|
|
logger.error("Can't commit %s, nothing uninstalled."
|
|
% (self.project_name,))
|
|
|
|
def archive(self, build_dir):
|
|
assert self.source_dir
|
|
create_archive = True
|
|
archive_name = '%s-%s.zip' % (self.name, self.installed_version)
|
|
archive_path = os.path.join(build_dir, archive_name)
|
|
if os.path.exists(archive_path):
|
|
response = ask_path_exists(
|
|
'The file %s exists. (i)gnore, (w)ipe, (b)ackup ' %
|
|
display_path(archive_path), ('i', 'w', 'b'))
|
|
if response == 'i':
|
|
create_archive = False
|
|
elif response == 'w':
|
|
logger.warn('Deleting %s' % display_path(archive_path))
|
|
os.remove(archive_path)
|
|
elif response == 'b':
|
|
dest_file = backup_dir(archive_path)
|
|
logger.warn('Backing up %s to %s'
|
|
% (display_path(archive_path), display_path(dest_file)))
|
|
shutil.move(archive_path, dest_file)
|
|
if create_archive:
|
|
zip = zipfile.ZipFile(archive_path, 'w', zipfile.ZIP_DEFLATED)
|
|
dir = os.path.normcase(os.path.abspath(self.source_dir))
|
|
for dirpath, dirnames, filenames in os.walk(dir):
|
|
if 'pip-egg-info' in dirnames:
|
|
dirnames.remove('pip-egg-info')
|
|
for dirname in dirnames:
|
|
dirname = os.path.join(dirpath, dirname)
|
|
name = self._clean_zip_name(dirname, dir)
|
|
zipdir = zipfile.ZipInfo(self.name + '/' + name + '/')
|
|
zipdir.external_attr = 0x1ED << 16 # 0o755
|
|
zip.writestr(zipdir, '')
|
|
for filename in filenames:
|
|
if filename == PIP_DELETE_MARKER_FILENAME:
|
|
continue
|
|
filename = os.path.join(dirpath, filename)
|
|
name = self._clean_zip_name(filename, dir)
|
|
zip.write(filename, self.name + '/' + name)
|
|
zip.close()
|
|
logger.indent -= 2
|
|
logger.notify('Saved %s' % display_path(archive_path))
|
|
|
|
def _clean_zip_name(self, name, prefix):
|
|
assert name.startswith(prefix+os.path.sep), (
|
|
"name %r doesn't start with prefix %r" % (name, prefix))
|
|
name = name[len(prefix)+1:]
|
|
name = name.replace(os.path.sep, '/')
|
|
return name
|
|
|
|
def install(self, install_options, global_options=(), root=None):
|
|
if self.editable:
|
|
self.install_editable(install_options, global_options)
|
|
return
|
|
if self.is_wheel:
|
|
version = pip.wheel.wheel_version(self.source_dir)
|
|
pip.wheel.check_compatibility(version, self.name)
|
|
|
|
self.move_wheel_files(self.source_dir, root=root)
|
|
self.install_succeeded = True
|
|
return
|
|
|
|
temp_location = tempfile.mkdtemp('-record', 'pip-')
|
|
record_filename = os.path.join(temp_location, 'install-record.txt')
|
|
try:
|
|
install_args = [sys.executable]
|
|
install_args.append('-c')
|
|
install_args.append(
|
|
"import setuptools, tokenize;__file__=%r;"\
|
|
"exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\\r\\n', '\\n'), __file__, 'exec'))" % self.setup_py)
|
|
install_args += list(global_options) + ['install','--record', record_filename]
|
|
|
|
if not self.as_egg:
|
|
install_args += ['--single-version-externally-managed']
|
|
|
|
if root is not None:
|
|
install_args += ['--root', root]
|
|
|
|
if self.pycompile:
|
|
install_args += ["--compile"]
|
|
else:
|
|
install_args += ["--no-compile"]
|
|
|
|
if running_under_virtualenv():
|
|
## FIXME: I'm not sure if this is a reasonable location; probably not
|
|
## but we can't put it in the default location, as that is a virtualenv symlink that isn't writable
|
|
install_args += ['--install-headers',
|
|
os.path.join(sys.prefix, 'include', 'site',
|
|
'python' + get_python_version())]
|
|
logger.notify('Running setup.py install for %s' % self.name)
|
|
logger.indent += 2
|
|
try:
|
|
call_subprocess(install_args + install_options,
|
|
cwd=self.source_dir, filter_stdout=self._filter_install, show_stdout=False)
|
|
finally:
|
|
logger.indent -= 2
|
|
if not os.path.exists(record_filename):
|
|
logger.notify('Record file %s not found' % record_filename)
|
|
return
|
|
self.install_succeeded = True
|
|
if self.as_egg:
|
|
# there's no --always-unzip option we can pass to install command
|
|
# so we unable to save the installed-files.txt
|
|
return
|
|
|
|
def prepend_root(path):
|
|
if root is None or not os.path.isabs(path):
|
|
return path
|
|
else:
|
|
return change_root(root, path)
|
|
|
|
f = open(record_filename)
|
|
for line in f:
|
|
line = line.strip()
|
|
if line.endswith('.egg-info'):
|
|
egg_info_dir = prepend_root(line)
|
|
break
|
|
else:
|
|
logger.warn('Could not find .egg-info directory in install record for %s' % self)
|
|
## FIXME: put the record somewhere
|
|
## FIXME: should this be an error?
|
|
return
|
|
f.close()
|
|
new_lines = []
|
|
f = open(record_filename)
|
|
for line in f:
|
|
filename = line.strip()
|
|
if os.path.isdir(filename):
|
|
filename += os.path.sep
|
|
new_lines.append(make_path_relative(prepend_root(filename), egg_info_dir))
|
|
f.close()
|
|
f = open(os.path.join(egg_info_dir, 'installed-files.txt'), 'w')
|
|
f.write('\n'.join(new_lines)+'\n')
|
|
f.close()
|
|
finally:
|
|
if os.path.exists(record_filename):
|
|
os.remove(record_filename)
|
|
os.rmdir(temp_location)
|
|
|
|
def remove_temporary_source(self):
|
|
"""Remove the source files from this requirement, if they are marked
|
|
for deletion"""
|
|
if self.is_bundle or os.path.exists(self.delete_marker_filename):
|
|
logger.info('Removing source in %s' % self.source_dir)
|
|
if self.source_dir:
|
|
rmtree(self.source_dir)
|
|
self.source_dir = None
|
|
if self._temp_build_dir and os.path.exists(self._temp_build_dir):
|
|
rmtree(self._temp_build_dir)
|
|
self._temp_build_dir = None
|
|
|
|
def install_editable(self, install_options, global_options=()):
|
|
logger.notify('Running setup.py develop for %s' % self.name)
|
|
logger.indent += 2
|
|
try:
|
|
## FIXME: should we do --install-headers here too?
|
|
call_subprocess(
|
|
[sys.executable, '-c',
|
|
"import setuptools, tokenize; __file__=%r; exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\\r\\n', '\\n'), __file__, 'exec'))" % self.setup_py]
|
|
+ list(global_options) + ['develop', '--no-deps'] + list(install_options),
|
|
|
|
cwd=self.source_dir, filter_stdout=self._filter_install,
|
|
show_stdout=False)
|
|
finally:
|
|
logger.indent -= 2
|
|
self.install_succeeded = True
|
|
|
|
def _filter_install(self, line):
|
|
level = logger.NOTIFY
|
|
for regex in [r'^running .*', r'^writing .*', '^creating .*', '^[Cc]opying .*',
|
|
r'^reading .*', r"^removing .*\.egg-info' \(and everything under it\)$",
|
|
r'^byte-compiling ',
|
|
# Not sure what this warning is, but it seems harmless:
|
|
r"^warning: manifest_maker: standard file '-c' not found$"]:
|
|
if re.search(regex, line.strip()):
|
|
level = logger.INFO
|
|
break
|
|
return (level, line)
|
|
|
|
def check_if_exists(self):
|
|
"""Find an installed distribution that satisfies or conflicts
|
|
with this requirement, and set self.satisfied_by or
|
|
self.conflicts_with appropriately."""
|
|
|
|
if self.req is None:
|
|
return False
|
|
try:
|
|
# DISTRIBUTE TO SETUPTOOLS UPGRADE HACK (1 of 3 parts)
|
|
# if we've already set distribute as a conflict to setuptools
|
|
# then this check has already run before. we don't want it to
|
|
# run again, and return False, since it would block the uninstall
|
|
# TODO: remove this later
|
|
if (self.req.project_name == 'setuptools'
|
|
and self.conflicts_with
|
|
and self.conflicts_with.project_name == 'distribute'):
|
|
return True
|
|
else:
|
|
self.satisfied_by = pkg_resources.get_distribution(self.req)
|
|
except pkg_resources.DistributionNotFound:
|
|
return False
|
|
except pkg_resources.VersionConflict:
|
|
existing_dist = pkg_resources.get_distribution(self.req.project_name)
|
|
if self.use_user_site:
|
|
if dist_in_usersite(existing_dist):
|
|
self.conflicts_with = existing_dist
|
|
elif running_under_virtualenv() and dist_in_site_packages(existing_dist):
|
|
raise InstallationError("Will not install to the user site because it will lack sys.path precedence to %s in %s"
|
|
%(existing_dist.project_name, existing_dist.location))
|
|
else:
|
|
self.conflicts_with = existing_dist
|
|
return True
|
|
|
|
@property
|
|
def is_wheel(self):
|
|
return self.url and '.whl' in self.url
|
|
|
|
@property
|
|
def is_bundle(self):
|
|
if self._is_bundle is not None:
|
|
return self._is_bundle
|
|
base = self._temp_build_dir
|
|
if not base:
|
|
## FIXME: this doesn't seem right:
|
|
return False
|
|
self._is_bundle = (os.path.exists(os.path.join(base, 'pip-manifest.txt'))
|
|
or os.path.exists(os.path.join(base, 'pyinstall-manifest.txt')))
|
|
return self._is_bundle
|
|
|
|
def bundle_requirements(self):
|
|
for dest_dir in self._bundle_editable_dirs:
|
|
package = os.path.basename(dest_dir)
|
|
## FIXME: svnism:
|
|
for vcs_backend in vcs.backends:
|
|
url = rev = None
|
|
vcs_bundle_file = os.path.join(
|
|
dest_dir, vcs_backend.bundle_file)
|
|
if os.path.exists(vcs_bundle_file):
|
|
vc_type = vcs_backend.name
|
|
fp = open(vcs_bundle_file)
|
|
content = fp.read()
|
|
fp.close()
|
|
url, rev = vcs_backend().parse_vcs_bundle_file(content)
|
|
break
|
|
if url:
|
|
url = '%s+%s@%s' % (vc_type, url, rev)
|
|
else:
|
|
url = None
|
|
yield InstallRequirement(
|
|
package, self, editable=True, url=url,
|
|
update=False, source_dir=dest_dir, from_bundle=True)
|
|
for dest_dir in self._bundle_build_dirs:
|
|
package = os.path.basename(dest_dir)
|
|
yield InstallRequirement(package, self,source_dir=dest_dir, from_bundle=True)
|
|
|
|
def move_bundle_files(self, dest_build_dir, dest_src_dir):
|
|
base = self._temp_build_dir
|
|
assert base
|
|
src_dir = os.path.join(base, 'src')
|
|
build_dir = os.path.join(base, 'build')
|
|
bundle_build_dirs = []
|
|
bundle_editable_dirs = []
|
|
for source_dir, dest_dir, dir_collection in [
|
|
(src_dir, dest_src_dir, bundle_editable_dirs),
|
|
(build_dir, dest_build_dir, bundle_build_dirs)]:
|
|
if os.path.exists(source_dir):
|
|
for dirname in os.listdir(source_dir):
|
|
dest = os.path.join(dest_dir, dirname)
|
|
dir_collection.append(dest)
|
|
if os.path.exists(dest):
|
|
logger.warn('The directory %s (containing package %s) already exists; cannot move source from bundle %s'
|
|
% (dest, dirname, self))
|
|
continue
|
|
if not os.path.exists(dest_dir):
|
|
logger.info('Creating directory %s' % dest_dir)
|
|
os.makedirs(dest_dir)
|
|
shutil.move(os.path.join(source_dir, dirname), dest)
|
|
if not os.listdir(source_dir):
|
|
os.rmdir(source_dir)
|
|
self._temp_build_dir = None
|
|
self._bundle_build_dirs = bundle_build_dirs
|
|
self._bundle_editable_dirs = bundle_editable_dirs
|
|
|
|
def move_wheel_files(self, wheeldir, root=None):
|
|
move_wheel_files(
|
|
self.name, self.req, wheeldir,
|
|
user=self.use_user_site,
|
|
home=self.target_dir,
|
|
root=root,
|
|
pycompile=self.pycompile,
|
|
)
|
|
|
|
@property
|
|
def delete_marker_filename(self):
|
|
assert self.source_dir
|
|
return os.path.join(self.source_dir, PIP_DELETE_MARKER_FILENAME)
|
|
|
|
|
|
class Requirements(object):
|
|
|
|
def __init__(self):
|
|
self._keys = []
|
|
self._dict = {}
|
|
|
|
def keys(self):
|
|
return self._keys
|
|
|
|
def values(self):
|
|
return [self._dict[key] for key in self._keys]
|
|
|
|
def __contains__(self, item):
|
|
return item in self._keys
|
|
|
|
def __setitem__(self, key, value):
|
|
if key not in self._keys:
|
|
self._keys.append(key)
|
|
self._dict[key] = value
|
|
|
|
def __getitem__(self, key):
|
|
return self._dict[key]
|
|
|
|
def __repr__(self):
|
|
values = ['%s: %s' % (repr(k), repr(self[k])) for k in self.keys()]
|
|
return 'Requirements({%s})' % ', '.join(values)
|
|
|
|
|
|
class RequirementSet(object):
|
|
|
|
def __init__(self, build_dir, src_dir, download_dir, download_cache=None,
|
|
upgrade=False, ignore_installed=False, as_egg=False,
|
|
target_dir=None, ignore_dependencies=False,
|
|
force_reinstall=False, use_user_site=False, session=None,
|
|
pycompile=True, wheel_download_dir=None):
|
|
self.build_dir = build_dir
|
|
self.src_dir = src_dir
|
|
self.download_dir = download_dir
|
|
if download_cache:
|
|
download_cache = os.path.expanduser(download_cache)
|
|
self.download_cache = download_cache
|
|
self.upgrade = upgrade
|
|
self.ignore_installed = ignore_installed
|
|
self.force_reinstall = force_reinstall
|
|
self.requirements = Requirements()
|
|
# Mapping of alias: real_name
|
|
self.requirement_aliases = {}
|
|
self.unnamed_requirements = []
|
|
self.ignore_dependencies = ignore_dependencies
|
|
self.successfully_downloaded = []
|
|
self.successfully_installed = []
|
|
self.reqs_to_cleanup = []
|
|
self.as_egg = as_egg
|
|
self.use_user_site = use_user_site
|
|
self.target_dir = target_dir #set from --target option
|
|
self.session = session or PipSession()
|
|
self.pycompile = pycompile
|
|
self.wheel_download_dir = wheel_download_dir
|
|
|
|
def __str__(self):
|
|
reqs = [req for req in self.requirements.values()
|
|
if not req.comes_from]
|
|
reqs.sort(key=lambda req: req.name.lower())
|
|
return ' '.join([str(req.req) for req in reqs])
|
|
|
|
def add_requirement(self, install_req):
|
|
name = install_req.name
|
|
install_req.as_egg = self.as_egg
|
|
install_req.use_user_site = self.use_user_site
|
|
install_req.target_dir = self.target_dir
|
|
install_req.pycompile = self.pycompile
|
|
if not name:
|
|
#url or path requirement w/o an egg fragment
|
|
self.unnamed_requirements.append(install_req)
|
|
else:
|
|
if self.has_requirement(name):
|
|
raise InstallationError(
|
|
'Double requirement given: %s (already in %s, name=%r)'
|
|
% (install_req, self.get_requirement(name), name))
|
|
self.requirements[name] = install_req
|
|
## FIXME: what about other normalizations? E.g., _ vs. -?
|
|
if name.lower() != name:
|
|
self.requirement_aliases[name.lower()] = name
|
|
|
|
def has_requirement(self, project_name):
|
|
for name in project_name, project_name.lower():
|
|
if name in self.requirements or name in self.requirement_aliases:
|
|
return True
|
|
return False
|
|
|
|
@property
|
|
def has_requirements(self):
|
|
return list(self.requirements.values()) or self.unnamed_requirements
|
|
|
|
@property
|
|
def has_editables(self):
|
|
if any(req.editable for req in self.requirements.values()):
|
|
return True
|
|
if any(req.editable for req in self.unnamed_requirements):
|
|
return True
|
|
return False
|
|
|
|
@property
|
|
def is_download(self):
|
|
if self.download_dir:
|
|
self.download_dir = os.path.expanduser(self.download_dir)
|
|
if os.path.exists(self.download_dir):
|
|
return True
|
|
else:
|
|
logger.fatal('Could not find download directory')
|
|
raise InstallationError(
|
|
"Could not find or access download directory '%s'"
|
|
% display_path(self.download_dir))
|
|
return False
|
|
|
|
def get_requirement(self, project_name):
|
|
for name in project_name, project_name.lower():
|
|
if name in self.requirements:
|
|
return self.requirements[name]
|
|
if name in self.requirement_aliases:
|
|
return self.requirements[self.requirement_aliases[name]]
|
|
raise KeyError("No project with the name %r" % project_name)
|
|
|
|
def uninstall(self, auto_confirm=False):
|
|
for req in self.requirements.values():
|
|
req.uninstall(auto_confirm=auto_confirm)
|
|
req.commit_uninstall()
|
|
|
|
def locate_files(self):
|
|
## FIXME: duplicates code from prepare_files; relevant code should
|
|
## probably be factored out into a separate method
|
|
unnamed = list(self.unnamed_requirements)
|
|
reqs = list(self.requirements.values())
|
|
while reqs or unnamed:
|
|
if unnamed:
|
|
req_to_install = unnamed.pop(0)
|
|
else:
|
|
req_to_install = reqs.pop(0)
|
|
install_needed = True
|
|
if not self.ignore_installed and not req_to_install.editable:
|
|
req_to_install.check_if_exists()
|
|
if req_to_install.satisfied_by:
|
|
if self.upgrade:
|
|
#don't uninstall conflict if user install and and conflict is not user install
|
|
if not (self.use_user_site and not dist_in_usersite(req_to_install.satisfied_by)):
|
|
req_to_install.conflicts_with = req_to_install.satisfied_by
|
|
req_to_install.satisfied_by = None
|
|
else:
|
|
install_needed = False
|
|
if req_to_install.satisfied_by:
|
|
logger.notify('Requirement already satisfied '
|
|
'(use --upgrade to upgrade): %s'
|
|
% req_to_install)
|
|
|
|
if req_to_install.editable:
|
|
if req_to_install.source_dir is None:
|
|
req_to_install.source_dir = req_to_install.build_location(self.src_dir)
|
|
elif install_needed:
|
|
req_to_install.source_dir = req_to_install.build_location(self.build_dir, not self.is_download)
|
|
|
|
if req_to_install.source_dir is not None and not os.path.isdir(req_to_install.source_dir):
|
|
raise InstallationError('Could not install requirement %s '
|
|
'because source folder %s does not exist '
|
|
'(perhaps --no-download was used without first running '
|
|
'an equivalent install with --no-install?)'
|
|
% (req_to_install, req_to_install.source_dir))
|
|
|
|
def prepare_files(self, finder, force_root_egg_info=False, bundle=False):
|
|
"""Prepare process. Create temp directories, download and/or unpack files."""
|
|
unnamed = list(self.unnamed_requirements)
|
|
reqs = list(self.requirements.values())
|
|
while reqs or unnamed:
|
|
if unnamed:
|
|
req_to_install = unnamed.pop(0)
|
|
else:
|
|
req_to_install = reqs.pop(0)
|
|
install = True
|
|
best_installed = False
|
|
not_found = None
|
|
if not self.ignore_installed and not req_to_install.editable:
|
|
req_to_install.check_if_exists()
|
|
if req_to_install.satisfied_by:
|
|
if self.upgrade:
|
|
if not self.force_reinstall and not req_to_install.url:
|
|
try:
|
|
url = finder.find_requirement(
|
|
req_to_install, self.upgrade)
|
|
except BestVersionAlreadyInstalled:
|
|
best_installed = True
|
|
install = False
|
|
except DistributionNotFound:
|
|
not_found = sys.exc_info()[1]
|
|
else:
|
|
# Avoid the need to call find_requirement again
|
|
req_to_install.url = url.url
|
|
|
|
if not best_installed:
|
|
#don't uninstall conflict if user install and conflict is not user install
|
|
if not (self.use_user_site and not dist_in_usersite(req_to_install.satisfied_by)):
|
|
req_to_install.conflicts_with = req_to_install.satisfied_by
|
|
req_to_install.satisfied_by = None
|
|
else:
|
|
install = False
|
|
if req_to_install.satisfied_by:
|
|
if best_installed:
|
|
logger.notify('Requirement already up-to-date: %s'
|
|
% req_to_install)
|
|
else:
|
|
logger.notify('Requirement already satisfied '
|
|
'(use --upgrade to upgrade): %s'
|
|
% req_to_install)
|
|
if req_to_install.editable:
|
|
logger.notify('Obtaining %s' % req_to_install)
|
|
elif install:
|
|
if req_to_install.url and req_to_install.url.lower().startswith('file:'):
|
|
logger.notify('Unpacking %s' % display_path(url_to_path(req_to_install.url)))
|
|
else:
|
|
logger.notify('Downloading/unpacking %s' % req_to_install)
|
|
logger.indent += 2
|
|
try:
|
|
is_bundle = False
|
|
is_wheel = False
|
|
if req_to_install.editable:
|
|
if req_to_install.source_dir is None:
|
|
location = req_to_install.build_location(self.src_dir)
|
|
req_to_install.source_dir = location
|
|
else:
|
|
location = req_to_install.source_dir
|
|
if not os.path.exists(self.build_dir):
|
|
_make_build_dir(self.build_dir)
|
|
req_to_install.update_editable(not self.is_download)
|
|
if self.is_download:
|
|
req_to_install.run_egg_info()
|
|
req_to_install.archive(self.download_dir)
|
|
else:
|
|
req_to_install.run_egg_info()
|
|
elif install:
|
|
##@@ if filesystem packages are not marked
|
|
##editable in a req, a non deterministic error
|
|
##occurs when the script attempts to unpack the
|
|
##build directory
|
|
|
|
# NB: This call can result in the creation of a temporary build directory
|
|
location = req_to_install.build_location(self.build_dir, not self.is_download)
|
|
unpack = True
|
|
url = None
|
|
|
|
# In the case where the req comes from a bundle, we should
|
|
# assume a build dir exists and move on
|
|
if req_to_install.from_bundle:
|
|
pass
|
|
# If a checkout exists, it's unwise to keep going. version
|
|
# inconsistencies are logged later, but do not fail the
|
|
# installation.
|
|
elif os.path.exists(os.path.join(location, 'setup.py')):
|
|
raise PreviousBuildDirError(textwrap.dedent("""
|
|
pip can't proceed with requirement '%s' due to a pre-existing build directory.
|
|
location: %s
|
|
This is likely due to a previous installation that failed.
|
|
pip is being responsible and not assuming it can delete this.
|
|
Please delete it and try again.
|
|
""" % (req_to_install, location)))
|
|
else:
|
|
## FIXME: this won't upgrade when there's an existing package unpacked in `location`
|
|
if req_to_install.url is None:
|
|
if not_found:
|
|
raise not_found
|
|
url = finder.find_requirement(req_to_install, upgrade=self.upgrade)
|
|
else:
|
|
## FIXME: should req_to_install.url already be a link?
|
|
url = Link(req_to_install.url)
|
|
assert url
|
|
if url:
|
|
try:
|
|
|
|
if (
|
|
url.filename.endswith(wheel_ext)
|
|
and self.wheel_download_dir
|
|
):
|
|
# when doing 'pip wheel`
|
|
download_dir = self.wheel_download_dir
|
|
do_download = True
|
|
else:
|
|
download_dir = self.download_dir
|
|
do_download = self.is_download
|
|
self.unpack_url(
|
|
url, location, download_dir,
|
|
do_download,
|
|
)
|
|
except HTTPError as exc:
|
|
logger.fatal(
|
|
'Could not install requirement %s because '
|
|
'of error %s' % (req_to_install, exc)
|
|
)
|
|
raise InstallationError(
|
|
'Could not install requirement %s because of HTTP error %s for URL %s'
|
|
% (req_to_install, e, url))
|
|
else:
|
|
unpack = False
|
|
if unpack:
|
|
is_bundle = req_to_install.is_bundle
|
|
is_wheel = url and url.filename.endswith(wheel_ext)
|
|
if is_bundle:
|
|
req_to_install.move_bundle_files(self.build_dir, self.src_dir)
|
|
for subreq in req_to_install.bundle_requirements():
|
|
reqs.append(subreq)
|
|
self.add_requirement(subreq)
|
|
elif self.is_download:
|
|
req_to_install.source_dir = location
|
|
if not is_wheel:
|
|
# FIXME: see https://github.com/pypa/pip/issues/1112
|
|
req_to_install.run_egg_info()
|
|
if url and url.scheme in vcs.all_schemes:
|
|
req_to_install.archive(self.download_dir)
|
|
elif is_wheel:
|
|
req_to_install.source_dir = location
|
|
req_to_install.url = url.url
|
|
else:
|
|
req_to_install.source_dir = location
|
|
req_to_install.run_egg_info()
|
|
if force_root_egg_info:
|
|
# We need to run this to make sure that the .egg-info/
|
|
# directory is created for packing in the bundle
|
|
req_to_install.run_egg_info(force_root_egg_info=True)
|
|
req_to_install.assert_source_matches_version()
|
|
#@@ sketchy way of identifying packages not grabbed from an index
|
|
if bundle and req_to_install.url:
|
|
self.copy_to_build_dir(req_to_install)
|
|
install = False
|
|
# req_to_install.req is only avail after unpack for URL pkgs
|
|
# repeat check_if_exists to uninstall-on-upgrade (#14)
|
|
if not self.ignore_installed:
|
|
req_to_install.check_if_exists()
|
|
if req_to_install.satisfied_by:
|
|
if self.upgrade or self.ignore_installed:
|
|
#don't uninstall conflict if user install and and conflict is not user install
|
|
if not (self.use_user_site and not dist_in_usersite(req_to_install.satisfied_by)):
|
|
req_to_install.conflicts_with = req_to_install.satisfied_by
|
|
req_to_install.satisfied_by = None
|
|
else:
|
|
logger.notify(
|
|
'Requirement already satisfied (use '
|
|
'--upgrade to upgrade): %s' %
|
|
req_to_install
|
|
)
|
|
install = False
|
|
if is_wheel:
|
|
dist = list(
|
|
pkg_resources.find_distributions(location)
|
|
)[0]
|
|
if not req_to_install.req:
|
|
req_to_install.req = dist.as_requirement()
|
|
self.add_requirement(req_to_install)
|
|
if not self.ignore_dependencies:
|
|
for subreq in dist.requires(
|
|
req_to_install.extras):
|
|
if self.has_requirement(
|
|
subreq.project_name):
|
|
continue
|
|
subreq = InstallRequirement(str(subreq),
|
|
req_to_install)
|
|
reqs.append(subreq)
|
|
self.add_requirement(subreq)
|
|
|
|
# sdists
|
|
elif not is_bundle:
|
|
## FIXME: shouldn't be globally added:
|
|
finder.add_dependency_links(req_to_install.dependency_links)
|
|
if (req_to_install.extras):
|
|
logger.notify("Installing extra requirements: %r" % ','.join(req_to_install.extras))
|
|
if not self.ignore_dependencies:
|
|
for req in req_to_install.requirements(req_to_install.extras):
|
|
try:
|
|
name = pkg_resources.Requirement.parse(req).project_name
|
|
except ValueError:
|
|
e = sys.exc_info()[1]
|
|
## FIXME: proper warning
|
|
logger.error('Invalid requirement: %r (%s) in requirement %s' % (req, e, req_to_install))
|
|
continue
|
|
if self.has_requirement(name):
|
|
## FIXME: check for conflict
|
|
continue
|
|
subreq = InstallRequirement(req, req_to_install)
|
|
reqs.append(subreq)
|
|
self.add_requirement(subreq)
|
|
if not self.has_requirement(req_to_install.name):
|
|
#'unnamed' requirements will get added here
|
|
self.add_requirement(req_to_install)
|
|
|
|
# cleanup tmp src
|
|
if not is_bundle:
|
|
if (
|
|
self.is_download or
|
|
req_to_install._temp_build_dir is not None
|
|
):
|
|
self.reqs_to_cleanup.append(req_to_install)
|
|
|
|
if install:
|
|
self.successfully_downloaded.append(req_to_install)
|
|
if bundle and (req_to_install.url and req_to_install.url.startswith('file:///')):
|
|
self.copy_to_build_dir(req_to_install)
|
|
finally:
|
|
logger.indent -= 2
|
|
|
|
def cleanup_files(self, bundle=False):
|
|
"""Clean up files, remove builds."""
|
|
logger.notify('Cleaning up...')
|
|
logger.indent += 2
|
|
for req in self.reqs_to_cleanup:
|
|
req.remove_temporary_source()
|
|
|
|
remove_dir = []
|
|
if self._pip_has_created_build_dir():
|
|
remove_dir.append(self.build_dir)
|
|
|
|
# The source dir of a bundle can always be removed.
|
|
# FIXME: not if it pre-existed the bundle!
|
|
if bundle:
|
|
remove_dir.append(self.src_dir)
|
|
|
|
for dir in remove_dir:
|
|
if os.path.exists(dir):
|
|
logger.info('Removing temporary dir %s...' % dir)
|
|
rmtree(dir)
|
|
|
|
logger.indent -= 2
|
|
|
|
def _pip_has_created_build_dir(self):
|
|
return (self.build_dir == build_prefix and
|
|
os.path.exists(os.path.join(self.build_dir, PIP_DELETE_MARKER_FILENAME)))
|
|
|
|
def copy_to_build_dir(self, req_to_install):
|
|
target_dir = req_to_install.editable and self.src_dir or self.build_dir
|
|
logger.info("Copying %s to %s" % (req_to_install.name, target_dir))
|
|
dest = os.path.join(target_dir, req_to_install.name)
|
|
shutil.copytree(req_to_install.source_dir, dest)
|
|
call_subprocess(["python", "%s/setup.py" % dest, "clean"], cwd=dest,
|
|
command_desc='python setup.py clean')
|
|
|
|
def unpack_url(self, link, location, download_dir=None,
|
|
only_download=False):
|
|
if download_dir is None:
|
|
download_dir = self.download_dir
|
|
|
|
# non-editable vcs urls
|
|
if is_vcs_url(link):
|
|
if only_download:
|
|
loc = download_dir
|
|
else:
|
|
loc = location
|
|
unpack_vcs_link(link, loc, only_download)
|
|
|
|
# file urls
|
|
elif is_file_url(link):
|
|
unpack_file_url(link, location, download_dir)
|
|
if only_download:
|
|
write_delete_marker_file(location)
|
|
|
|
# http urls
|
|
else:
|
|
unpack_http_url(
|
|
link,
|
|
location,
|
|
self.download_cache,
|
|
download_dir,
|
|
self.session,
|
|
)
|
|
if only_download:
|
|
write_delete_marker_file(location)
|
|
|
|
def install(self, install_options, global_options=(), *args, **kwargs):
|
|
"""Install everything in this set (after having downloaded and unpacked the packages)"""
|
|
to_install = [r for r in self.requirements.values()
|
|
if not r.satisfied_by]
|
|
|
|
# DISTRIBUTE TO SETUPTOOLS UPGRADE HACK (1 of 3 parts)
|
|
# move the distribute-0.7.X wrapper to the end because it does not
|
|
# install a setuptools package. by moving it to the end, we ensure it's
|
|
# setuptools dependency is handled first, which will provide the
|
|
# setuptools package
|
|
# TODO: take this out later
|
|
distribute_req = pkg_resources.Requirement.parse("distribute>=0.7")
|
|
for req in to_install:
|
|
if req.name == 'distribute' and req.installed_version in distribute_req:
|
|
to_install.remove(req)
|
|
to_install.append(req)
|
|
|
|
if to_install:
|
|
logger.notify('Installing collected packages: %s' % ', '.join([req.name for req in to_install]))
|
|
logger.indent += 2
|
|
try:
|
|
for requirement in to_install:
|
|
|
|
# DISTRIBUTE TO SETUPTOOLS UPGRADE HACK (1 of 3 parts)
|
|
# when upgrading from distribute-0.6.X to the new merged
|
|
# setuptools in py2, we need to force setuptools to uninstall
|
|
# distribute. In py3, which is always using distribute, this
|
|
# conversion is already happening in distribute's pkg_resources.
|
|
# It's ok *not* to check if setuptools>=0.7 because if someone
|
|
# were actually trying to ugrade from distribute to setuptools
|
|
# 0.6.X, then all this could do is actually help, although that
|
|
# upgade path was certainly never "supported"
|
|
# TODO: remove this later
|
|
if requirement.name == 'setuptools':
|
|
try:
|
|
# only uninstall distribute<0.7. For >=0.7, setuptools
|
|
# will also be present, and that's what we need to
|
|
# uninstall
|
|
distribute_requirement = pkg_resources.Requirement.parse("distribute<0.7")
|
|
existing_distribute = pkg_resources.get_distribution("distribute")
|
|
if existing_distribute in distribute_requirement:
|
|
requirement.conflicts_with = existing_distribute
|
|
except pkg_resources.DistributionNotFound:
|
|
# distribute wasn't installed, so nothing to do
|
|
pass
|
|
|
|
if requirement.conflicts_with:
|
|
logger.notify('Found existing installation: %s'
|
|
% requirement.conflicts_with)
|
|
logger.indent += 2
|
|
try:
|
|
requirement.uninstall(auto_confirm=True)
|
|
finally:
|
|
logger.indent -= 2
|
|
try:
|
|
requirement.install(install_options, global_options, *args, **kwargs)
|
|
except:
|
|
# if install did not succeed, rollback previous uninstall
|
|
if requirement.conflicts_with and not requirement.install_succeeded:
|
|
requirement.rollback_uninstall()
|
|
raise
|
|
else:
|
|
if requirement.conflicts_with and requirement.install_succeeded:
|
|
requirement.commit_uninstall()
|
|
requirement.remove_temporary_source()
|
|
finally:
|
|
logger.indent -= 2
|
|
self.successfully_installed = to_install
|
|
|
|
def create_bundle(self, bundle_filename):
|
|
## FIXME: can't decide which is better; zip is easier to read
|
|
## random files from, but tar.bz2 is smaller and not as lame a
|
|
## format.
|
|
|
|
## FIXME: this file should really include a manifest of the
|
|
## packages, maybe some other metadata files. It would make
|
|
## it easier to detect as well.
|
|
zip = zipfile.ZipFile(bundle_filename, 'w', zipfile.ZIP_DEFLATED)
|
|
vcs_dirs = []
|
|
for dir, basename in (self.build_dir, 'build'), (self.src_dir, 'src'):
|
|
dir = os.path.normcase(os.path.abspath(dir))
|
|
for dirpath, dirnames, filenames in os.walk(dir):
|
|
for backend in vcs.backends:
|
|
vcs_backend = backend()
|
|
vcs_url = vcs_rev = None
|
|
if vcs_backend.dirname in dirnames:
|
|
for vcs_dir in vcs_dirs:
|
|
if dirpath.startswith(vcs_dir):
|
|
# vcs bundle file already in parent directory
|
|
break
|
|
else:
|
|
vcs_url, vcs_rev = vcs_backend.get_info(
|
|
os.path.join(dir, dirpath))
|
|
vcs_dirs.append(dirpath)
|
|
vcs_bundle_file = vcs_backend.bundle_file
|
|
vcs_guide = vcs_backend.guide % {'url': vcs_url,
|
|
'rev': vcs_rev}
|
|
dirnames.remove(vcs_backend.dirname)
|
|
break
|
|
if 'pip-egg-info' in dirnames:
|
|
dirnames.remove('pip-egg-info')
|
|
for dirname in dirnames:
|
|
dirname = os.path.join(dirpath, dirname)
|
|
name = self._clean_zip_name(dirname, dir)
|
|
zip.writestr(basename + '/' + name + '/', '')
|
|
for filename in filenames:
|
|
if filename == PIP_DELETE_MARKER_FILENAME:
|
|
continue
|
|
filename = os.path.join(dirpath, filename)
|
|
name = self._clean_zip_name(filename, dir)
|
|
zip.write(filename, basename + '/' + name)
|
|
if vcs_url:
|
|
name = os.path.join(dirpath, vcs_bundle_file)
|
|
name = self._clean_zip_name(name, dir)
|
|
zip.writestr(basename + '/' + name, vcs_guide)
|
|
|
|
zip.writestr('pip-manifest.txt', self.bundle_requirements())
|
|
zip.close()
|
|
|
|
BUNDLE_HEADER = '''\
|
|
# This is a pip bundle file, that contains many source packages
|
|
# that can be installed as a group. You can install this like:
|
|
# pip this_file.zip
|
|
# The rest of the file contains a list of all the packages included:
|
|
'''
|
|
|
|
def bundle_requirements(self):
|
|
parts = [self.BUNDLE_HEADER]
|
|
for req in [req for req in self.requirements.values()
|
|
if not req.comes_from]:
|
|
parts.append('%s==%s\n' % (req.name, req.installed_version))
|
|
parts.append('# These packages were installed to satisfy the above requirements:\n')
|
|
for req in [req for req in self.requirements.values()
|
|
if req.comes_from]:
|
|
parts.append('%s==%s\n' % (req.name, req.installed_version))
|
|
## FIXME: should we do something with self.unnamed_requirements?
|
|
return ''.join(parts)
|
|
|
|
def _clean_zip_name(self, name, prefix):
|
|
assert name.startswith(prefix+os.path.sep), (
|
|
"name %r doesn't start with prefix %r" % (name, prefix))
|
|
name = name[len(prefix)+1:]
|
|
name = name.replace(os.path.sep, '/')
|
|
return name
|
|
|
|
|
|
def _make_build_dir(build_dir):
|
|
os.makedirs(build_dir)
|
|
write_delete_marker_file(build_dir)
|
|
|
|
|
|
_scheme_re = re.compile(r'^(http|https|file):', re.I)
|
|
|
|
|
|
def parse_requirements(filename, finder=None, comes_from=None, options=None,
|
|
session=None):
|
|
if session is None:
|
|
session = PipSession()
|
|
|
|
skip_match = None
|
|
skip_regex = options.skip_requirements_regex if options else None
|
|
if skip_regex:
|
|
skip_match = re.compile(skip_regex)
|
|
reqs_file_dir = os.path.dirname(os.path.abspath(filename))
|
|
filename, content = get_file_content(filename,
|
|
comes_from=comes_from,
|
|
session=session,
|
|
)
|
|
for line_number, line in enumerate(content.splitlines()):
|
|
line_number += 1
|
|
line = line.strip()
|
|
|
|
# Remove comments from file
|
|
line = re.sub(r"(^|\s)#.*$", "", line)
|
|
|
|
if not line or line.startswith('#'):
|
|
continue
|
|
if skip_match and skip_match.search(line):
|
|
continue
|
|
if line.startswith('-r') or line.startswith('--requirement'):
|
|
if line.startswith('-r'):
|
|
req_url = line[2:].strip()
|
|
else:
|
|
req_url = line[len('--requirement'):].strip().strip('=')
|
|
if _scheme_re.search(filename):
|
|
# Relative to a URL
|
|
req_url = urlparse.urljoin(filename, req_url)
|
|
elif not _scheme_re.search(req_url):
|
|
req_url = os.path.join(os.path.dirname(filename), req_url)
|
|
for item in parse_requirements(req_url, finder, comes_from=filename, options=options, session=session):
|
|
yield item
|
|
elif line.startswith('-Z') or line.startswith('--always-unzip'):
|
|
# No longer used, but previously these were used in
|
|
# requirement files, so we'll ignore.
|
|
pass
|
|
elif line.startswith('-f') or line.startswith('--find-links'):
|
|
if line.startswith('-f'):
|
|
line = line[2:].strip()
|
|
else:
|
|
line = line[len('--find-links'):].strip().lstrip('=')
|
|
## FIXME: it would be nice to keep track of the source of
|
|
## the find_links:
|
|
# support a find-links local path relative to a requirements file
|
|
relative_to_reqs_file = os.path.join(reqs_file_dir, line)
|
|
if os.path.exists(relative_to_reqs_file):
|
|
line = relative_to_reqs_file
|
|
if finder:
|
|
finder.find_links.append(line)
|
|
elif line.startswith('-i') or line.startswith('--index-url'):
|
|
if line.startswith('-i'):
|
|
line = line[2:].strip()
|
|
else:
|
|
line = line[len('--index-url'):].strip().lstrip('=')
|
|
if finder:
|
|
finder.index_urls = [line]
|
|
elif line.startswith('--extra-index-url'):
|
|
line = line[len('--extra-index-url'):].strip().lstrip('=')
|
|
if finder:
|
|
finder.index_urls.append(line)
|
|
elif line.startswith('--use-wheel'):
|
|
finder.use_wheel = True
|
|
elif line.startswith('--no-index'):
|
|
finder.index_urls = []
|
|
elif line.startswith("--allow-external"):
|
|
line = line[len("--allow-external"):].strip().lstrip("=")
|
|
finder.allow_external |= set([normalize_name(line).lower()])
|
|
elif line.startswith("--allow-all-external"):
|
|
finder.allow_all_external = True
|
|
# Remove in 1.7
|
|
elif line.startswith("--no-allow-external"):
|
|
pass
|
|
# Remove in 1.7
|
|
elif line.startswith("--no-allow-insecure"):
|
|
pass
|
|
# Remove after 1.7
|
|
elif line.startswith("--allow-insecure"):
|
|
line = line[len("--allow-insecure"):].strip().lstrip("=")
|
|
finder.allow_unverified |= set([normalize_name(line).lower()])
|
|
elif line.startswith("--allow-unverified"):
|
|
line = line[len("--allow-unverified"):].strip().lstrip("=")
|
|
finder.allow_unverified |= set([normalize_name(line).lower()])
|
|
else:
|
|
comes_from = '-r %s (line %s)' % (filename, line_number)
|
|
if line.startswith('-e') or line.startswith('--editable'):
|
|
if line.startswith('-e'):
|
|
line = line[2:].strip()
|
|
else:
|
|
line = line[len('--editable'):].strip().lstrip('=')
|
|
req = InstallRequirement.from_editable(
|
|
line, comes_from=comes_from, default_vcs=options.default_vcs if options else None)
|
|
else:
|
|
req = InstallRequirement.from_line(line, comes_from, prereleases=getattr(options, "pre", None))
|
|
yield req
|
|
|
|
def _strip_postfix(req):
|
|
"""
|
|
Strip req postfix ( -dev, 0.2, etc )
|
|
"""
|
|
## FIXME: use package_to_requirement?
|
|
match = re.search(r'^(.*?)(?:-dev|-\d.*)$', req)
|
|
if match:
|
|
# Strip off -dev, -0.2, etc.
|
|
req = match.group(1)
|
|
return req
|
|
|
|
def _build_req_from_url(url):
|
|
|
|
parts = [p for p in url.split('#', 1)[0].split('/') if p]
|
|
|
|
req = None
|
|
if parts[-2] in ('tags', 'branches', 'tag', 'branch'):
|
|
req = parts[-3]
|
|
elif parts[-1] == 'trunk':
|
|
req = parts[-2]
|
|
return req
|
|
|
|
def _build_editable_options(req):
|
|
|
|
"""
|
|
This method generates a dictionary of the query string
|
|
parameters contained in a given editable URL.
|
|
"""
|
|
regexp = re.compile(r"[\?#&](?P<name>[^&=]+)=(?P<value>[^&=]+)")
|
|
matched = regexp.findall(req)
|
|
|
|
if matched:
|
|
ret = dict()
|
|
for option in matched:
|
|
(name, value) = option
|
|
if name in ret:
|
|
raise Exception("%s option already defined" % name)
|
|
ret[name] = value
|
|
return ret
|
|
return None
|
|
|
|
|
|
def parse_editable(editable_req, default_vcs=None):
|
|
"""Parses svn+http://blahblah@rev#egg=Foobar into a requirement
|
|
(Foobar) and a URL"""
|
|
|
|
url = editable_req
|
|
extras = None
|
|
|
|
# If a file path is specified with extras, strip off the extras.
|
|
m = re.match(r'^(.+)(\[[^\]]+\])$', url)
|
|
if m:
|
|
url_no_extras = m.group(1)
|
|
extras = m.group(2)
|
|
else:
|
|
url_no_extras = url
|
|
|
|
if os.path.isdir(url_no_extras):
|
|
if not os.path.exists(os.path.join(url_no_extras, 'setup.py')):
|
|
raise InstallationError("Directory %r is not installable. File 'setup.py' not found." % url_no_extras)
|
|
# Treating it as code that has already been checked out
|
|
url_no_extras = path_to_url(url_no_extras)
|
|
|
|
if url_no_extras.lower().startswith('file:'):
|
|
if extras:
|
|
return None, url_no_extras, pkg_resources.Requirement.parse('__placeholder__' + extras).extras
|
|
else:
|
|
return None, url_no_extras, None
|
|
|
|
for version_control in vcs:
|
|
if url.lower().startswith('%s:' % version_control):
|
|
url = '%s+%s' % (version_control, url)
|
|
break
|
|
|
|
if '+' not in url:
|
|
if default_vcs:
|
|
url = default_vcs + '+' + url
|
|
else:
|
|
raise InstallationError(
|
|
'%s should either be a path to a local project or a VCS url beginning with svn+, git+, hg+, or bzr+' % editable_req)
|
|
|
|
vc_type = url.split('+', 1)[0].lower()
|
|
|
|
if not vcs.get_backend(vc_type):
|
|
error_message = 'For --editable=%s only ' % editable_req + \
|
|
', '.join([backend.name + '+URL' for backend in vcs.backends]) + \
|
|
' is currently supported'
|
|
raise InstallationError(error_message)
|
|
|
|
try:
|
|
options = _build_editable_options(editable_req)
|
|
except Exception:
|
|
message = sys.exc_info()[1]
|
|
raise InstallationError(
|
|
'--editable=%s error in editable options:%s' % (editable_req, message))
|
|
|
|
if not options or 'egg' not in options:
|
|
req = _build_req_from_url(editable_req)
|
|
if not req:
|
|
raise InstallationError('--editable=%s is not the right format; it must have #egg=Package' % editable_req)
|
|
else:
|
|
req = options['egg']
|
|
|
|
package = _strip_postfix(req)
|
|
return package, url, options
|
|
|
|
|
|
class UninstallPathSet(object):
|
|
"""A set of file paths to be removed in the uninstallation of a
|
|
requirement."""
|
|
def __init__(self, dist):
|
|
self.paths = set()
|
|
self._refuse = set()
|
|
self.pth = {}
|
|
self.dist = dist
|
|
self.save_dir = None
|
|
self._moved_paths = []
|
|
|
|
def _permitted(self, path):
|
|
"""
|
|
Return True if the given path is one we are permitted to
|
|
remove/modify, False otherwise.
|
|
|
|
"""
|
|
return is_local(path)
|
|
|
|
def _can_uninstall(self):
|
|
if not dist_is_local(self.dist):
|
|
logger.notify("Not uninstalling %s at %s, outside environment %s"
|
|
% (self.dist.project_name, normalize_path(self.dist.location), sys.prefix))
|
|
return False
|
|
return True
|
|
|
|
def add(self, path):
|
|
path = normalize_path(path)
|
|
if not os.path.exists(path):
|
|
return
|
|
if self._permitted(path):
|
|
self.paths.add(path)
|
|
else:
|
|
self._refuse.add(path)
|
|
|
|
# __pycache__ files can show up after 'installed-files.txt' is created, due to imports
|
|
if os.path.splitext(path)[1] == '.py' and uses_pycache:
|
|
self.add(imp.cache_from_source(path))
|
|
|
|
|
|
def add_pth(self, pth_file, entry):
|
|
pth_file = normalize_path(pth_file)
|
|
if self._permitted(pth_file):
|
|
if pth_file not in self.pth:
|
|
self.pth[pth_file] = UninstallPthEntries(pth_file)
|
|
self.pth[pth_file].add(entry)
|
|
else:
|
|
self._refuse.add(pth_file)
|
|
|
|
def compact(self, paths):
|
|
"""Compact a path set to contain the minimal number of paths
|
|
necessary to contain all paths in the set. If /a/path/ and
|
|
/a/path/to/a/file.txt are both in the set, leave only the
|
|
shorter path."""
|
|
short_paths = set()
|
|
for path in sorted(paths, key=len):
|
|
if not any([(path.startswith(shortpath) and
|
|
path[len(shortpath.rstrip(os.path.sep))] == os.path.sep)
|
|
for shortpath in short_paths]):
|
|
short_paths.add(path)
|
|
return short_paths
|
|
|
|
def _stash(self, path):
|
|
return os.path.join(
|
|
self.save_dir, os.path.splitdrive(path)[1].lstrip(os.path.sep))
|
|
|
|
def remove(self, auto_confirm=False):
|
|
"""Remove paths in ``self.paths`` with confirmation (unless
|
|
``auto_confirm`` is True)."""
|
|
if not self._can_uninstall():
|
|
return
|
|
if not self.paths:
|
|
logger.notify("Can't uninstall '%s'. No files were found to uninstall." % self.dist.project_name)
|
|
return
|
|
logger.notify('Uninstalling %s:' % self.dist.project_name)
|
|
logger.indent += 2
|
|
paths = sorted(self.compact(self.paths))
|
|
try:
|
|
if auto_confirm:
|
|
response = 'y'
|
|
else:
|
|
for path in paths:
|
|
logger.notify(path)
|
|
response = ask('Proceed (y/n)? ', ('y', 'n'))
|
|
if self._refuse:
|
|
logger.notify('Not removing or modifying (outside of prefix):')
|
|
for path in self.compact(self._refuse):
|
|
logger.notify(path)
|
|
if response == 'y':
|
|
self.save_dir = tempfile.mkdtemp(suffix='-uninstall',
|
|
prefix='pip-')
|
|
for path in paths:
|
|
new_path = self._stash(path)
|
|
logger.info('Removing file or directory %s' % path)
|
|
self._moved_paths.append(path)
|
|
renames(path, new_path)
|
|
for pth in self.pth.values():
|
|
pth.remove()
|
|
logger.notify('Successfully uninstalled %s' % self.dist.project_name)
|
|
|
|
finally:
|
|
logger.indent -= 2
|
|
|
|
def rollback(self):
|
|
"""Rollback the changes previously made by remove()."""
|
|
if self.save_dir is None:
|
|
logger.error("Can't roll back %s; was not uninstalled" % self.dist.project_name)
|
|
return False
|
|
logger.notify('Rolling back uninstall of %s' % self.dist.project_name)
|
|
for path in self._moved_paths:
|
|
tmp_path = self._stash(path)
|
|
logger.info('Replacing %s' % path)
|
|
renames(tmp_path, path)
|
|
for pth in self.pth:
|
|
pth.rollback()
|
|
|
|
def commit(self):
|
|
"""Remove temporary save dir: rollback will no longer be possible."""
|
|
if self.save_dir is not None:
|
|
rmtree(self.save_dir)
|
|
self.save_dir = None
|
|
self._moved_paths = []
|
|
|
|
|
|
class UninstallPthEntries(object):
|
|
def __init__(self, pth_file):
|
|
if not os.path.isfile(pth_file):
|
|
raise UninstallationError("Cannot remove entries from nonexistent file %s" % pth_file)
|
|
self.file = pth_file
|
|
self.entries = set()
|
|
self._saved_lines = None
|
|
|
|
def add(self, entry):
|
|
entry = os.path.normcase(entry)
|
|
# On Windows, os.path.normcase converts the entry to use
|
|
# backslashes. This is correct for entries that describe absolute
|
|
# paths outside of site-packages, but all the others use forward
|
|
# slashes.
|
|
if sys.platform == 'win32' and not os.path.splitdrive(entry)[0]:
|
|
entry = entry.replace('\\', '/')
|
|
self.entries.add(entry)
|
|
|
|
def remove(self):
|
|
logger.info('Removing pth entries from %s:' % self.file)
|
|
fh = open(self.file, 'rb')
|
|
# windows uses '\r\n' with py3k, but uses '\n' with py2.x
|
|
lines = fh.readlines()
|
|
self._saved_lines = lines
|
|
fh.close()
|
|
if any(b('\r\n') in line for line in lines):
|
|
endline = '\r\n'
|
|
else:
|
|
endline = '\n'
|
|
for entry in self.entries:
|
|
try:
|
|
logger.info('Removing entry: %s' % entry)
|
|
lines.remove(b(entry + endline))
|
|
except ValueError:
|
|
pass
|
|
fh = open(self.file, 'wb')
|
|
fh.writelines(lines)
|
|
fh.close()
|
|
|
|
def rollback(self):
|
|
if self._saved_lines is None:
|
|
logger.error('Cannot roll back changes to %s, none were made' % self.file)
|
|
return False
|
|
logger.info('Rolling %s back to previous state' % self.file)
|
|
fh = open(self.file, 'wb')
|
|
fh.writelines(self._saved_lines)
|
|
fh.close()
|
|
return True
|
|
|
|
|
|
class FakeFile(object):
|
|
"""Wrap a list of lines in an object with readline() to make
|
|
ConfigParser happy."""
|
|
def __init__(self, lines):
|
|
self._gen = (l for l in lines)
|
|
|
|
def readline(self):
|
|
try:
|
|
try:
|
|
return next(self._gen)
|
|
except NameError:
|
|
return self._gen.next()
|
|
except StopIteration:
|
|
return ''
|
|
|
|
def __iter__(self):
|
|
return self._gen
|