diff options
Diffstat (limited to 'ez_setup.py')
-rw-r--r--[-rwxr-xr-x] | ez_setup.py | 574 |
1 files changed, 340 insertions, 234 deletions
diff --git a/ez_setup.py b/ez_setup.py index e33744ba..9dc2c872 100755..100644 --- a/ez_setup.py +++ b/ez_setup.py @@ -13,264 +13,370 @@ 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 -DEFAULT_VERSION = "0.6c9" -DEFAULT_URL = "http://pypi.python.org/packages/%s/s/setuptools/" % sys.version[:3] - -md5_data = { - 'setuptools-0.6b1-py2.3.egg': '8822caf901250d848b996b7f25c6e6ca', - 'setuptools-0.6b1-py2.4.egg': 'b79a8a403e4502fbb85ee3f1941735cb', - 'setuptools-0.6b2-py2.3.egg': '5657759d8a6d8fc44070a9d07272d99b', - 'setuptools-0.6b2-py2.4.egg': '4996a8d169d2be661fa32a6e52e4f82a', - 'setuptools-0.6b3-py2.3.egg': 'bb31c0fc7399a63579975cad9f5a0618', - 'setuptools-0.6b3-py2.4.egg': '38a8c6b3d6ecd22247f179f7da669fac', - 'setuptools-0.6b4-py2.3.egg': '62045a24ed4e1ebc77fe039aa4e6f7e5', - 'setuptools-0.6b4-py2.4.egg': '4cb2a185d228dacffb2d17f103b3b1c4', - 'setuptools-0.6c1-py2.3.egg': 'b3f2b5539d65cb7f74ad79127f1a908c', - 'setuptools-0.6c1-py2.4.egg': 'b45adeda0667d2d2ffe14009364f2a4b', - 'setuptools-0.6c2-py2.3.egg': 'f0064bf6aa2b7d0f3ba0b43f20817c27', - 'setuptools-0.6c2-py2.4.egg': '616192eec35f47e8ea16cd6a122b7277', - 'setuptools-0.6c3-py2.3.egg': 'f181fa125dfe85a259c9cd6f1d7b78fa', - 'setuptools-0.6c3-py2.4.egg': 'e0ed74682c998bfb73bf803a50e7b71e', - 'setuptools-0.6c3-py2.5.egg': 'abef16fdd61955514841c7c6bd98965e', - 'setuptools-0.6c4-py2.3.egg': 'b0b9131acab32022bfac7f44c5d7971f', - 'setuptools-0.6c4-py2.4.egg': '2a1f9656d4fbf3c97bf946c0a124e6e2', - 'setuptools-0.6c4-py2.5.egg': '8f5a052e32cdb9c72bcf4b5526f28afc', - 'setuptools-0.6c5-py2.3.egg': 'ee9fd80965da04f2f3e6b3576e9d8167', - 'setuptools-0.6c5-py2.4.egg': 'afe2adf1c01701ee841761f5bcd8aa64', - 'setuptools-0.6c5-py2.5.egg': 'a8d3f61494ccaa8714dfed37bccd3d5d', - 'setuptools-0.6c6-py2.3.egg': '35686b78116a668847237b69d549ec20', - 'setuptools-0.6c6-py2.4.egg': '3c56af57be3225019260a644430065ab', - 'setuptools-0.6c6-py2.5.egg': 'b2f8a7520709a5b34f80946de5f02f53', - 'setuptools-0.6c7-py2.3.egg': '209fdf9adc3a615e5115b725658e13e2', - 'setuptools-0.6c7-py2.4.egg': '5a8f954807d46a0fb67cf1f26c55a82e', - 'setuptools-0.6c7-py2.5.egg': '45d2ad28f9750e7434111fde831e8372', - 'setuptools-0.6c8-py2.3.egg': '50759d29b349db8cfd807ba8303f1902', - 'setuptools-0.6c8-py2.4.egg': 'cba38d74f7d483c06e9daa6070cce6de', - 'setuptools-0.6c8-py2.5.egg': '1721747ee329dc150590a58b3e1ac95b', - 'setuptools-0.6c9-py2.3.egg': 'a83c4020414807b496e4cfbe08507c03', - 'setuptools-0.6c9-py2.4.egg': '260a2be2e5388d66bdaee06abec6342a', - 'setuptools-0.6c9-py2.5.egg': 'fe67c3e5a17b12c0e7c541b7ea43a8e6', - 'setuptools-0.6c9-py2.6.egg': 'ca37b1ff16fa2ede6e19383e7b59245a', -} - -import sys, os -try: from hashlib import md5 -except ImportError: from md5 import md5 - -def _validate_md5(egg_name, data): - if egg_name in md5_data: - digest = md5(data).hexdigest() - if digest != md5_data[egg_name]: - print >>sys.stderr, ( - "md5 validation of %s failed! (Possible download problem?)" - % egg_name - ) - sys.exit(2) - return data - -def use_setuptools( - version=DEFAULT_VERSION, download_base=DEFAULT_URL, to_dir=os.curdir, - download_delay=15 -): - """Automatically find/download setuptools and make it available on sys.path - - `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 setuptools will be downloaded, if - it is not already available. If `download_delay` is specified, it should - be the number of seconds that will be paused before initiating a download, - should one be required. If an older version of setuptools is installed, - this routine will print a message to ``sys.stderr`` and raise SystemExit in - an attempt to abort the calling script. - """ - was_imported = 'pkg_resources' in sys.modules or 'setuptools' in sys.modules - def do_download(): - egg = download_setuptools(version, download_base, to_dir, download_delay) - sys.path.insert(0, egg) - import setuptools; setuptools.bootstrap_install_from = egg +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() + return _do_download(version, download_base, to_dir, download_delay) try: - pkg_resources.require("setuptools>="+version); return - except pkg_resources.VersionConflict, e: + pkg_resources.require("setuptools>=" + version) + return + except pkg_resources.VersionConflict: + e = sys.exc_info()[1] if was_imported: - print >>sys.stderr, ( - "The required version of setuptools (>=%s) is not available, and\n" - "can't be installed while this script is running. Please install\n" - " a more recent version first, using 'easy_install -U setuptools'." - "\n\n(Currently using %r)" - ) % (version, e.args[0]) + 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() + return _do_download(version, download_base, to_dir, + download_delay) except pkg_resources.DistributionNotFound: - return do_download() + return _do_download(version, download_base, to_dir, + download_delay) -def download_setuptools( - version=DEFAULT_VERSION, download_base=DEFAULT_URL, to_dir=os.curdir, - delay = 15 -): - """Download setuptools from a specified location and return its filename +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 - `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. +def download_file_powershell(url, target): """ - import urllib2, shutil - egg_name = "setuptools-%s-py%s.egg" % (version,sys.version[:3]) - url = download_base + egg_name - saveto = os.path.join(to_dir, egg_name) - src = dst = None - if not os.path.exists(saveto): # Avoid repeated downloads + 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: - from distutils import log - if delay: - log.warn(""" ---------------------------------------------------------------------------- -This script requires setuptools version %s to run (even to display -help). I will attempt to download it for you (from -%s), but -you may need to enable firewall access for this script first. -I will start the download in %d seconds. - -(Note: if this machine does not have network access, please obtain the file - - %s - -and place it in this directory before rerunning this script.) ----------------------------------------------------------------------------""", - version, download_base, delay, url - ); from time import sleep; sleep(delay) - log.warn("Downloading %s", url) - src = urllib2.urlopen(url) - # Read/write all in one block, so we don't create a corrupt file - # if the download is interrupted. - data = _validate_md5(egg_name, src.read()) - dst = open(saveto,"wb"); dst.write(data) - finally: - if src: src.close() - if dst: dst.close() - return os.path.realpath(saveto) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -def main(argv, version=DEFAULT_VERSION): - """Install or upgrade setuptools and EasyInstall""" + 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: - import setuptools - except ImportError: - egg = None try: - egg = download_setuptools(version, delay=0) - sys.path.insert(0,egg) - from setuptools.command.easy_install import main - return main(list(argv)+[egg]) # we're done here - finally: - if egg and os.path.exists(egg): - os.unlink(egg) - else: - if setuptools.__version__ == '0.0.1': - print >>sys.stderr, ( - "You have an obsolete version of setuptools installed. Please\n" - "remove it from your system entirely before rerunning this script." - ) - sys.exit(2) - - req = "setuptools>="+version - import pkg_resources + 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: - pkg_resources.require(req) - except pkg_resources.VersionConflict: try: - from setuptools.command.easy_install import main - except ImportError: - from easy_install import main - main(list(argv)+[download_setuptools(delay=0)]) - sys.exit(0) # try to force an exit - else: - if argv: - from setuptools.command.easy_install import main - main(argv) - else: - print "Setuptools version",version,"or greater has been installed." - print '(Run "ez_setup.py -U setuptools" to reinstall or upgrade.)' + subprocess.check_call(cmd, stdout=devnull, stderr=devnull) + except: + return False + finally: + devnull.close() + return True -def update_md5(filenames): - """Update our built-in md5 registry""" +download_file_wget.viable = has_wget - import re - - for name in filenames: - base = os.path.basename(name) - f = open(name,'rb') - md5_data[base] = md5(f.read()).hexdigest() - f.close() - - data = [" %r: %r,\n" % it for it in md5_data.items()] - data.sort() - repl = "".join(data) - - import inspect - srcfile = inspect.getsourcefile(sys.modules[__name__]) - f = open(srcfile, 'rb'); src = f.read(); f.close() +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 - match = re.search("\nmd5_data = {\n([^}]+)}", src) - if not match: - print >>sys.stderr, "Internal error!" - sys.exit(2) + `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. - src = src[:match.start(1)] + repl + src[match.end(1):] - f = open(srcfile,'w') - f.write(src) - f.close() + ``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) -if __name__=='__main__': - if len(sys.argv)>2 and sys.argv[1]=='--md5update': - update_md5(sys.argv[2:]) +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: - main(sys.argv[1:]) - - - - + 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()) |