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- #!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 sys
- DEFAULT_VERSION = "0.6a7"
- DEFAULT_URL = "http://cheeseshop.python.org/packages/%s/s/setuptools/" % sys.version[:3]
- md5_data = {
- 'setuptools-0.5a13-py2.3.egg': '85edcf0ef39bab66e130d3f38f578c86',
- 'setuptools-0.5a13-py2.4.egg': 'ede4be600e3890e06d4ee5e0148e092a',
- 'setuptools-0.6a1-py2.3.egg': 'ee819a13b924d9696b0d6ca6d1c5833d',
- 'setuptools-0.6a1-py2.4.egg': '8256b5f1cd9e348ea6877b5ddd56257d',
- 'setuptools-0.6a2-py2.3.egg': 'b98da449da411267c37a738f0ab625ba',
- 'setuptools-0.6a2-py2.4.egg': 'be5b88bc30aed63fdefd2683be135c3b',
- 'setuptools-0.6a3-py2.3.egg': 'ee0e325de78f23aab79d33106dc2a8c8',
- 'setuptools-0.6a3-py2.4.egg': 'd95453d525a456d6c23e7a5eea89a063',
- 'setuptools-0.6a4-py2.3.egg': 'e958cbed4623bbf47dd1f268b99d7784',
- 'setuptools-0.6a4-py2.4.egg': '7f33c3ac2ef1296f0ab4fac1de4767d8',
- 'setuptools-0.6a5-py2.3.egg': '748408389c49bcd2d84f6ae0b01695b1',
- 'setuptools-0.6a5-py2.4.egg': '999bacde623f4284bfb3ea77941d2627',
- 'setuptools-0.6a6-py2.3.egg': '7858139f06ed0600b0d9383f36aca24c',
- 'setuptools-0.6a6-py2.4.egg': 'c10d20d29acebce0dc76219dc578d058',
- 'setuptools-0.6a7-py2.3.egg': 'cfc4125ddb95c07f9500adc5d6abef6f',
- 'setuptools-0.6a7-py2.4.egg': 'c6d62dab4461f71aed943caea89e6f20',
- }
- import sys, os
- def _validate_md5(egg_name, data):
- if egg_name in md5_data:
- from md5 import md5
- 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.
- """
- try:
- import setuptools
- 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)
- except ImportError:
- egg = download_setuptools(version, download_base, to_dir, download_delay)
- sys.path.insert(0, egg)
- import setuptools; setuptools.bootstrap_install_from = egg
- import pkg_resources
- try:
- pkg_resources.require("setuptools>="+version)
- except pkg_resources.VersionConflict:
- # XXX could we install in a subprocess here?
- 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."
- ) % version
- sys.exit(2)
- 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
- `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.
- """
- 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
- 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.
- ---------------------------------------------------------------------------""",
- version, download_base, delay
- ); 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"""
- try:
- import setuptools
- except ImportError:
- import tempfile, shutil
- tmpdir = tempfile.mkdtemp(prefix="easy_install-")
- try:
- egg = download_setuptools(version, to_dir=tmpdir, delay=0)
- sys.path.insert(0,egg)
- from setuptools.command.easy_install import main
- main(list(argv)+[egg])
- finally:
- shutil.rmtree(tmpdir)
- else:
- if setuptools.__version__ == '0.0.1':
- # tell the user to uninstall obsolete version
- use_setuptools(version)
- req = "setuptools>="+version
- import pkg_resources
- 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.)'
-
- def update_md5(filenames):
- """Update our built-in md5 registry"""
- import re
- from md5 import md5
- 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()
- match = re.search("\nmd5_data = {\n([^}]+)}", src)
- if not match:
- print >>sys.stderr, "Internal error!"
- sys.exit(2)
- src = src[:match.start(1)] + repl + src[match.end(1):]
- f = open(srcfile,'w')
- f.write(src)
- f.close()
- if __name__=='__main__':
- if len(sys.argv)>2 and sys.argv[1]=='--md5update':
- update_md5(sys.argv[2:])
- else:
- main(sys.argv[1:])
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