diff options
Diffstat (limited to 'ez_setup.py')
| -rw-r--r-- | ez_setup.py | 382 |
1 files changed, 0 insertions, 382 deletions
diff --git a/ez_setup.py b/ez_setup.py deleted file mode 100644 index 9dc2c872..00000000 --- a/ez_setup.py +++ /dev/null @@ -1,382 +0,0 @@ -#!python -"""Bootstrap setuptools installation - -If you want to use setuptools in your package's setup.py, just include this -file in the same directory with it, and add this to the top of your setup.py:: - - from ez_setup import use_setuptools - use_setuptools() - -If you want to require a specific version of setuptools, set a download -mirror, or use an alternate download directory, you can do so by supplying -the appropriate options to ``use_setuptools()``. - -This file can also be run as a script to install or upgrade setuptools. -""" -import os -import shutil -import sys -import tempfile -import tarfile -import optparse -import subprocess -import platform - -from distutils import log - -try: - from site import USER_SITE -except ImportError: - USER_SITE = None - -DEFAULT_VERSION = "1.4.2" -DEFAULT_URL = "https://pypi.python.org/packages/source/s/setuptools/" - -def _python_cmd(*args): - args = (sys.executable,) + args - return subprocess.call(args) == 0 - -def _check_call_py24(cmd, *args, **kwargs): - res = subprocess.call(cmd, *args, **kwargs) - class CalledProcessError(Exception): - pass - if not res == 0: - msg = "Command '%s' return non-zero exit status %d" % (cmd, res) - raise CalledProcessError(msg) -vars(subprocess).setdefault('check_call', _check_call_py24) - -def _install(tarball, install_args=()): - # extracting the tarball - tmpdir = tempfile.mkdtemp() - log.warn('Extracting in %s', tmpdir) - old_wd = os.getcwd() - try: - os.chdir(tmpdir) - tar = tarfile.open(tarball) - _extractall(tar) - tar.close() - - # going in the directory - subdir = os.path.join(tmpdir, os.listdir(tmpdir)[0]) - os.chdir(subdir) - log.warn('Now working in %s', subdir) - - # installing - log.warn('Installing Setuptools') - if not _python_cmd('setup.py', 'install', *install_args): - log.warn('Something went wrong during the installation.') - log.warn('See the error message above.') - # exitcode will be 2 - return 2 - finally: - os.chdir(old_wd) - shutil.rmtree(tmpdir) - - -def _build_egg(egg, tarball, to_dir): - # extracting the tarball - tmpdir = tempfile.mkdtemp() - log.warn('Extracting in %s', tmpdir) - old_wd = os.getcwd() - try: - os.chdir(tmpdir) - tar = tarfile.open(tarball) - _extractall(tar) - tar.close() - - # going in the directory - subdir = os.path.join(tmpdir, os.listdir(tmpdir)[0]) - os.chdir(subdir) - log.warn('Now working in %s', subdir) - - # building an egg - log.warn('Building a Setuptools egg in %s', to_dir) - _python_cmd('setup.py', '-q', 'bdist_egg', '--dist-dir', to_dir) - - finally: - os.chdir(old_wd) - shutil.rmtree(tmpdir) - # returning the result - log.warn(egg) - if not os.path.exists(egg): - raise IOError('Could not build the egg.') - - -def _do_download(version, download_base, to_dir, download_delay): - egg = os.path.join(to_dir, 'setuptools-%s-py%d.%d.egg' - % (version, sys.version_info[0], sys.version_info[1])) - if not os.path.exists(egg): - tarball = download_setuptools(version, download_base, - to_dir, download_delay) - _build_egg(egg, tarball, to_dir) - sys.path.insert(0, egg) - - # Remove previously-imported pkg_resources if present (see - # https://bitbucket.org/pypa/setuptools/pull-request/7/ for details). - if 'pkg_resources' in sys.modules: - del sys.modules['pkg_resources'] - - import setuptools - setuptools.bootstrap_install_from = egg - - -def use_setuptools(version=DEFAULT_VERSION, download_base=DEFAULT_URL, - to_dir=os.curdir, download_delay=15): - # making sure we use the absolute path - to_dir = os.path.abspath(to_dir) - was_imported = 'pkg_resources' in sys.modules or \ - 'setuptools' in sys.modules - try: - import pkg_resources - except ImportError: - return _do_download(version, download_base, to_dir, download_delay) - try: - pkg_resources.require("setuptools>=" + version) - return - except pkg_resources.VersionConflict: - e = sys.exc_info()[1] - if was_imported: - sys.stderr.write( - "The required version of setuptools (>=%s) is not available,\n" - "and can't be installed while this script is running. Please\n" - "install a more recent version first, using\n" - "'easy_install -U setuptools'." - "\n\n(Currently using %r)\n" % (version, e.args[0])) - sys.exit(2) - else: - del pkg_resources, sys.modules['pkg_resources'] # reload ok - return _do_download(version, download_base, to_dir, - download_delay) - except pkg_resources.DistributionNotFound: - return _do_download(version, download_base, to_dir, - download_delay) - -def _clean_check(cmd, target): - """ - Run the command to download target. If the command fails, clean up before - re-raising the error. - """ - try: - subprocess.check_call(cmd) - except subprocess.CalledProcessError: - if os.access(target, os.F_OK): - os.unlink(target) - raise - -def download_file_powershell(url, target): - """ - Download the file at url to target using Powershell (which will validate - trust). Raise an exception if the command cannot complete. - """ - target = os.path.abspath(target) - cmd = [ - 'powershell', - '-Command', - "(new-object System.Net.WebClient).DownloadFile(%(url)r, %(target)r)" % vars(), - ] - _clean_check(cmd, target) - -def has_powershell(): - if platform.system() != 'Windows': - return False - cmd = ['powershell', '-Command', 'echo test'] - devnull = open(os.path.devnull, 'wb') - try: - try: - subprocess.check_call(cmd, stdout=devnull, stderr=devnull) - except: - return False - finally: - devnull.close() - return True - -download_file_powershell.viable = has_powershell - -def download_file_curl(url, target): - cmd = ['curl', url, '--silent', '--output', target] - _clean_check(cmd, target) - -def has_curl(): - cmd = ['curl', '--version'] - devnull = open(os.path.devnull, 'wb') - try: - try: - subprocess.check_call(cmd, stdout=devnull, stderr=devnull) - except: - return False - finally: - devnull.close() - return True - -download_file_curl.viable = has_curl - -def download_file_wget(url, target): - cmd = ['wget', url, '--quiet', '--output-document', target] - _clean_check(cmd, target) - -def has_wget(): - cmd = ['wget', '--version'] - devnull = open(os.path.devnull, 'wb') - try: - try: - subprocess.check_call(cmd, stdout=devnull, stderr=devnull) - except: - return False - finally: - devnull.close() - return True - -download_file_wget.viable = has_wget - -def download_file_insecure(url, target): - """ - Use Python to download the file, even though it cannot authenticate the - connection. - """ - try: - from urllib.request import urlopen - except ImportError: - from urllib2 import urlopen - src = dst = None - try: - src = urlopen(url) - # Read/write all in one block, so we don't create a corrupt file - # if the download is interrupted. - data = src.read() - dst = open(target, "wb") - dst.write(data) - finally: - if src: - src.close() - if dst: - dst.close() - -download_file_insecure.viable = lambda: True - -def get_best_downloader(): - downloaders = [ - download_file_powershell, - download_file_curl, - download_file_wget, - download_file_insecure, - ] - - for dl in downloaders: - if dl.viable(): - return dl - -def download_setuptools(version=DEFAULT_VERSION, download_base=DEFAULT_URL, - to_dir=os.curdir, delay=15, - downloader_factory=get_best_downloader): - """Download setuptools from a specified location and return its filename - - `version` should be a valid setuptools version number that is available - as an egg for download under the `download_base` URL (which should end - with a '/'). `to_dir` is the directory where the egg will be downloaded. - `delay` is the number of seconds to pause before an actual download - attempt. - - ``downloader_factory`` should be a function taking no arguments and - returning a function for downloading a URL to a target. - """ - # making sure we use the absolute path - to_dir = os.path.abspath(to_dir) - tgz_name = "setuptools-%s.tar.gz" % version - url = download_base + tgz_name - saveto = os.path.join(to_dir, tgz_name) - if not os.path.exists(saveto): # Avoid repeated downloads - log.warn("Downloading %s", url) - downloader = downloader_factory() - downloader(url, saveto) - return os.path.realpath(saveto) - - -def _extractall(self, path=".", members=None): - """Extract all members from the archive to the current working - directory and set owner, modification time and permissions on - directories afterwards. `path' specifies a different directory - to extract to. `members' is optional and must be a subset of the - list returned by getmembers(). - """ - import copy - import operator - from tarfile import ExtractError - directories = [] - - if members is None: - members = self - - for tarinfo in members: - if tarinfo.isdir(): - # Extract directories with a safe mode. - directories.append(tarinfo) - tarinfo = copy.copy(tarinfo) - tarinfo.mode = 448 # decimal for oct 0700 - self.extract(tarinfo, path) - - # Reverse sort directories. - if sys.version_info < (2, 4): - def sorter(dir1, dir2): - return cmp(dir1.name, dir2.name) - directories.sort(sorter) - directories.reverse() - else: - directories.sort(key=operator.attrgetter('name'), reverse=True) - - # Set correct owner, mtime and filemode on directories. - for tarinfo in directories: - dirpath = os.path.join(path, tarinfo.name) - try: - self.chown(tarinfo, dirpath) - self.utime(tarinfo, dirpath) - self.chmod(tarinfo, dirpath) - except ExtractError: - e = sys.exc_info()[1] - if self.errorlevel > 1: - raise - else: - self._dbg(1, "tarfile: %s" % e) - - -def _build_install_args(options): - """ - Build the arguments to 'python setup.py install' on the setuptools package - """ - install_args = [] - if options.user_install: - if sys.version_info < (2, 6): - log.warn("--user requires Python 2.6 or later") - raise SystemExit(1) - install_args.append('--user') - return install_args - -def _parse_args(): - """ - Parse the command line for options - """ - parser = optparse.OptionParser() - parser.add_option( - '--user', dest='user_install', action='store_true', default=False, - help='install in user site package (requires Python 2.6 or later)') - parser.add_option( - '--download-base', dest='download_base', metavar="URL", - default=DEFAULT_URL, - help='alternative URL from where to download the setuptools package') - parser.add_option( - '--insecure', dest='downloader_factory', action='store_const', - const=lambda: download_file_insecure, default=get_best_downloader, - help='Use internal, non-validating downloader' - ) - options, args = parser.parse_args() - # positional arguments are ignored - return options - -def main(version=DEFAULT_VERSION): - """Install or upgrade setuptools and EasyInstall""" - options = _parse_args() - tarball = download_setuptools(download_base=options.download_base, - downloader_factory=options.downloader_factory) - return _install(tarball, _build_install_args(options)) - -if __name__ == '__main__': - sys.exit(main()) |