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"""Locations where we look for configs, install stuff, etc""" import sys import site import os import tempfile from distutils.command.install import install, SCHEME_KEYS import getpass from pip.backwardcompat import get_python_lib, get_path_uid, user_site import pip.exceptions DELETE_MARKER_MESSAGE = '''\ This file is placed here by pip to indicate the source was put here by pip. Once this package is successfully installed this source code will be deleted (unless you remove this file). ''' PIP_DELETE_MARKER_FILENAME = 'pip-delete-this-directory.txt' def write_delete_marker_file(directory): """ Write the pip delete marker file into this directory. """ filepath = os.path.join(directory, PIP_DELETE_MARKER_FILENAME) marker_fp = open(filepath, 'w') marker_fp.write(DELETE_MARKER_MESSAGE) marker_fp.close() def running_under_virtualenv(): """ Return True if we're running inside a virtualenv, False otherwise. """ if hasattr(sys, 'real_prefix'): return True elif sys.prefix != getattr(sys, "base_prefix", sys.prefix): return True return False def virtualenv_no_global(): """ Return True if in a venv and no system site packages. """ #this mirrors the logic in virtualenv.py for locating the no-global-site-packages.txt file site_mod_dir = os.path.dirname(os.path.abspath(site.__file__)) no_global_file = os.path.join(site_mod_dir, 'no-global-site-packages.txt') if running_under_virtualenv() and os.path.isfile(no_global_file): return True def __get_username(): """ Returns the effective username of the current process. """ if sys.platform == 'win32': return getpass.getuser() import pwd return pwd.getpwuid(os.geteuid()).pw_name def _get_build_prefix(): """ Returns a safe build_prefix """ path = os.path.join(tempfile.gettempdir(), 'pip_build_%s' % __get_username()) if sys.platform == 'win32': """ on windows(tested on 7) temp dirs are isolated """ return path try: os.mkdir(path) write_delete_marker_file(path) except OSError: file_uid = None try: # raises OSError for symlinks # https://github.com/pypa/pip/pull/935#discussion_r5307003 file_uid = get_path_uid(path) except OSError: file_uid = None if file_uid != os.geteuid(): msg = "The temporary folder for building (%s) is either not owned by you, or is a symlink." \ % path print (msg) print("pip will not work until the temporary folder is " + \ "either deleted or is a real directory owned by your user account.") raise pip.exceptions.InstallationError(msg) return path if running_under_virtualenv(): build_prefix = os.path.join(sys.prefix, 'build') src_prefix = os.path.join(sys.prefix, 'src') else: # Note: intentionally NOT using mkdtemp # See https://github.com/pypa/pip/issues/906 for plan to move to mkdtemp build_prefix = _get_build_prefix() ## FIXME: keep src in cwd for now (it is not a temporary folder) try: src_prefix = os.path.join(os.getcwd(), 'src') except OSError: # In case the current working directory has been renamed or deleted sys.exit("The folder you are executing pip from can no longer be found.") # under Mac OS X + virtualenv sys.prefix is not properly resolved # it is something like /path/to/python/bin/.. # Note: using realpath due to tmp dirs on OSX being symlinks build_prefix = os.path.abspath(os.path.realpath(build_prefix)) src_prefix = os.path.abspath(src_prefix) # FIXME doesn't account for venv linked to global site-packages site_packages = get_python_lib() user_dir = os.path.expanduser('~') if sys.platform == 'win32': bin_py = os.path.join(sys.prefix, 'Scripts') bin_user = os.path.join(user_site, 'Scripts') if user_site else None # buildout uses 'bin' on Windows too? if not os.path.exists(bin_py): bin_py = os.path.join(sys.prefix, 'bin') bin_user = os.path.join(user_site, 'bin') if user_site else None default_storage_dir = os.path.join(user_dir, 'pip') default_config_file = os.path.join(default_storage_dir, 'pip.ini') default_log_file = os.path.join(default_storage_dir, 'pip.log') else: bin_py = os.path.join(sys.prefix, 'bin') bin_user = os.path.join(user_site, 'bin') if user_site else None default_storage_dir = os.path.join(user_dir, '.pip') default_config_file = os.path.join(default_storage_dir, 'pip.conf') default_log_file = os.path.join(default_storage_dir, 'pip.log') # Forcing to use /usr/local/bin for standard Mac OS X framework installs # Also log to ~/Library/Logs/ for use with the Console.app log viewer if sys.platform[:6] == 'darwin' and sys.prefix[:16] == '/System/Library/': bin_py = '/usr/local/bin' default_log_file = os.path.join(user_dir, 'Library/Logs/pip.log') def distutils_scheme(dist_name, user=False, home=None, root=None): """ Return a distutils install scheme """ from distutils.dist import Distribution scheme = {} d = Distribution({'name': dist_name}) d.parse_config_files() i = d.get_command_obj('install', create=True) # NOTE: setting user or home has the side-effect of creating the home dir or # user base for installations during finalize_options() # ideally, we'd prefer a scheme class that has no side-effects. i.user = user or i.user i.home = home or i.home i.root = root or i.root i.finalize_options() for key in SCHEME_KEYS: scheme[key] = getattr(i, 'install_'+key) if running_under_virtualenv(): scheme['headers'] = os.path.join(sys.prefix, 'include', 'site', 'python' + sys.version[:3], dist_name) if root is not None: scheme["headers"] = os.path.join( root, os.path.abspath(scheme["headers"])[1:], ) return scheme
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