--- /dev/null
+#!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())
projects / mimedecode.git / commitdiff