source: TI12-security/trunk/NDGSecurity/python/ndg_security_test/ndg/security/test/integration/pylonsapp/ez_setup.py @ 7077

Subversion URL: http://proj.badc.rl.ac.uk/svn/ndg/TI12-security/trunk/NDGSecurity/python/ndg_security_test/ndg/security/test/integration/pylonsapp/ez_setup.py@7077
Revision 7077, 9.5 KB checked in by pjkersha, 9 years ago (diff)
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1#!python
2"""Bootstrap setuptools installation
3
4If you want to use setuptools in your package's setup.py, just include this
5file in the same directory with it, and add this to the top of your setup.py::
6
7    from ez_setup import use_setuptools
8    use_setuptools()
9
10If you want to require a specific version of setuptools, set a download
11mirror, or use an alternate download directory, you can do so by supplying
12the appropriate options to ``use_setuptools()``.
13
14This file can also be run as a script to install or upgrade setuptools.
15"""
16import sys
17DEFAULT_VERSION = "0.6c9"
18DEFAULT_URL     = "http://pypi.python.org/packages/%s/s/setuptools/" % sys.version[:3]
19
20md5_data = {
21    'setuptools-0.6b1-py2.3.egg': '8822caf901250d848b996b7f25c6e6ca',
22    'setuptools-0.6b1-py2.4.egg': 'b79a8a403e4502fbb85ee3f1941735cb',
23    'setuptools-0.6b2-py2.3.egg': '5657759d8a6d8fc44070a9d07272d99b',
24    'setuptools-0.6b2-py2.4.egg': '4996a8d169d2be661fa32a6e52e4f82a',
25    'setuptools-0.6b3-py2.3.egg': 'bb31c0fc7399a63579975cad9f5a0618',
26    'setuptools-0.6b3-py2.4.egg': '38a8c6b3d6ecd22247f179f7da669fac',
27    'setuptools-0.6b4-py2.3.egg': '62045a24ed4e1ebc77fe039aa4e6f7e5',
28    'setuptools-0.6b4-py2.4.egg': '4cb2a185d228dacffb2d17f103b3b1c4',
29    'setuptools-0.6c1-py2.3.egg': 'b3f2b5539d65cb7f74ad79127f1a908c',
30    'setuptools-0.6c1-py2.4.egg': 'b45adeda0667d2d2ffe14009364f2a4b',
31    'setuptools-0.6c2-py2.3.egg': 'f0064bf6aa2b7d0f3ba0b43f20817c27',
32    'setuptools-0.6c2-py2.4.egg': '616192eec35f47e8ea16cd6a122b7277',
33    'setuptools-0.6c3-py2.3.egg': 'f181fa125dfe85a259c9cd6f1d7b78fa',
34    'setuptools-0.6c3-py2.4.egg': 'e0ed74682c998bfb73bf803a50e7b71e',
35    'setuptools-0.6c3-py2.5.egg': 'abef16fdd61955514841c7c6bd98965e',
36    'setuptools-0.6c4-py2.3.egg': 'b0b9131acab32022bfac7f44c5d7971f',
37    'setuptools-0.6c4-py2.4.egg': '2a1f9656d4fbf3c97bf946c0a124e6e2',
38    'setuptools-0.6c4-py2.5.egg': '8f5a052e32cdb9c72bcf4b5526f28afc',
39    'setuptools-0.6c5-py2.3.egg': 'ee9fd80965da04f2f3e6b3576e9d8167',
40    'setuptools-0.6c5-py2.4.egg': 'afe2adf1c01701ee841761f5bcd8aa64',
41    'setuptools-0.6c5-py2.5.egg': 'a8d3f61494ccaa8714dfed37bccd3d5d',
42    'setuptools-0.6c6-py2.3.egg': '35686b78116a668847237b69d549ec20',
43    'setuptools-0.6c6-py2.4.egg': '3c56af57be3225019260a644430065ab',
44    'setuptools-0.6c6-py2.5.egg': 'b2f8a7520709a5b34f80946de5f02f53',
45    'setuptools-0.6c7-py2.3.egg': '209fdf9adc3a615e5115b725658e13e2',
46    'setuptools-0.6c7-py2.4.egg': '5a8f954807d46a0fb67cf1f26c55a82e',
47    'setuptools-0.6c7-py2.5.egg': '45d2ad28f9750e7434111fde831e8372',
48    'setuptools-0.6c8-py2.3.egg': '50759d29b349db8cfd807ba8303f1902',
49    'setuptools-0.6c8-py2.4.egg': 'cba38d74f7d483c06e9daa6070cce6de',
50    'setuptools-0.6c8-py2.5.egg': '1721747ee329dc150590a58b3e1ac95b',
51    'setuptools-0.6c9-py2.3.egg': 'a83c4020414807b496e4cfbe08507c03',
52    'setuptools-0.6c9-py2.4.egg': '260a2be2e5388d66bdaee06abec6342a',
53    'setuptools-0.6c9-py2.5.egg': 'fe67c3e5a17b12c0e7c541b7ea43a8e6',
54    'setuptools-0.6c9-py2.6.egg': 'ca37b1ff16fa2ede6e19383e7b59245a',
55}
56
57import sys, os
58try: from hashlib import md5
59except ImportError: from md5 import md5
60
61def _validate_md5(egg_name, data):
62    if egg_name in md5_data:
63        digest = md5(data).hexdigest()
64        if digest != md5_data[egg_name]:
65            print >>sys.stderr, (
66                "md5 validation of %s failed!  (Possible download problem?)"
67                % egg_name
68            )
69            sys.exit(2)
70    return data
71
72def use_setuptools(
73    version=DEFAULT_VERSION, download_base=DEFAULT_URL, to_dir=os.curdir,
74    download_delay=15
75):
76    """Automatically find/download setuptools and make it available on sys.path
77
78    `version` should be a valid setuptools version number that is available
79    as an egg for download under the `download_base` URL (which should end with
80    a '/').  `to_dir` is the directory where setuptools will be downloaded, if
81    it is not already available.  If `download_delay` is specified, it should
82    be the number of seconds that will be paused before initiating a download,
83    should one be required.  If an older version of setuptools is installed,
84    this routine will print a message to ``sys.stderr`` and raise SystemExit in
85    an attempt to abort the calling script.
86    """
87    was_imported = 'pkg_resources' in sys.modules or 'setuptools' in sys.modules
88    def do_download():
89        egg = download_setuptools(version, download_base, to_dir, download_delay)
90        sys.path.insert(0, egg)
91        import setuptools; setuptools.bootstrap_install_from = egg
92    try:
93        import pkg_resources
94    except ImportError:
95        return do_download()       
96    try:
97        pkg_resources.require("setuptools>="+version); return
98    except pkg_resources.VersionConflict, e:
99        if was_imported:
100            print >>sys.stderr, (
101            "The required version of setuptools (>=%s) is not available, and\n"
102            "can't be installed while this script is running. Please install\n"
103            " a more recent version first, using 'easy_install -U setuptools'."
104            "\n\n(Currently using %r)"
105            ) % (version, e.args[0])
106            sys.exit(2)
107        else:
108            del pkg_resources, sys.modules['pkg_resources']    # reload ok
109            return do_download()
110    except pkg_resources.DistributionNotFound:
111        return do_download()
112
113def download_setuptools(
114    version=DEFAULT_VERSION, download_base=DEFAULT_URL, to_dir=os.curdir,
115    delay = 15
116):
117    """Download setuptools from a specified location and return its filename
118
119    `version` should be a valid setuptools version number that is available
120    as an egg for download under the `download_base` URL (which should end
121    with a '/'). `to_dir` is the directory where the egg will be downloaded.
122    `delay` is the number of seconds to pause before an actual download attempt.
123    """
124    import urllib2, shutil
125    egg_name = "setuptools-%s-py%s.egg" % (version,sys.version[:3])
126    url = download_base + egg_name
127    saveto = os.path.join(to_dir, egg_name)
128    src = dst = None
129    if not os.path.exists(saveto):  # Avoid repeated downloads
130        try:
131            from distutils import log
132            if delay:
133                log.warn("""
134---------------------------------------------------------------------------
135This script requires setuptools version %s to run (even to display
136help).  I will attempt to download it for you (from
137%s), but
138you may need to enable firewall access for this script first.
139I will start the download in %d seconds.
140
141(Note: if this machine does not have network access, please obtain the file
142
143   %s
144
145and place it in this directory before rerunning this script.)
146---------------------------------------------------------------------------""",
147                    version, download_base, delay, url
148                ); from time import sleep; sleep(delay)
149            log.warn("Downloading %s", url)
150            src = urllib2.urlopen(url)
151            # Read/write all in one block, so we don't create a corrupt file
152            # if the download is interrupted.
153            data = _validate_md5(egg_name, src.read())
154            dst = open(saveto,"wb"); dst.write(data)
155        finally:
156            if src: src.close()
157            if dst: dst.close()
158    return os.path.realpath(saveto)
159
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195def main(argv, version=DEFAULT_VERSION):
196    """Install or upgrade setuptools and EasyInstall"""
197    try:
198        import setuptools
199    except ImportError:
200        egg = None
201        try:
202            egg = download_setuptools(version, delay=0)
203            sys.path.insert(0,egg)
204            from setuptools.command.easy_install import main
205            return main(list(argv)+[egg])   # we're done here
206        finally:
207            if egg and os.path.exists(egg):
208                os.unlink(egg)
209    else:
210        if setuptools.__version__ == '0.0.1':
211            print >>sys.stderr, (
212            "You have an obsolete version of setuptools installed.  Please\n"
213            "remove it from your system entirely before rerunning this script."
214            )
215            sys.exit(2)
216
217    req = "setuptools>="+version
218    import pkg_resources
219    try:
220        pkg_resources.require(req)
221    except pkg_resources.VersionConflict:
222        try:
223            from setuptools.command.easy_install import main
224        except ImportError:
225            from easy_install import main
226        main(list(argv)+[download_setuptools(delay=0)])
227        sys.exit(0) # try to force an exit
228    else:
229        if argv:
230            from setuptools.command.easy_install import main
231            main(argv)
232        else:
233            print "Setuptools version",version,"or greater has been installed."
234            print '(Run "ez_setup.py -U setuptools" to reinstall or upgrade.)'
235
236def update_md5(filenames):
237    """Update our built-in md5 registry"""
238
239    import re
240
241    for name in filenames:
242        base = os.path.basename(name)
243        f = open(name,'rb')
244        md5_data[base] = md5(f.read()).hexdigest()
245        f.close()
246
247    data = ["    %r: %r,\n" % it for it in md5_data.items()]
248    data.sort()
249    repl = "".join(data)
250
251    import inspect
252    srcfile = inspect.getsourcefile(sys.modules[__name__])
253    f = open(srcfile, 'rb'); src = f.read(); f.close()
254
255    match = re.search("\nmd5_data = {\n([^}]+)}", src)
256    if not match:
257        print >>sys.stderr, "Internal error!"
258        sys.exit(2)
259
260    src = src[:match.start(1)] + repl + src[match.end(1):]
261    f = open(srcfile,'w')
262    f.write(src)
263    f.close()
264
265
266if __name__=='__main__':
267    if len(sys.argv)>2 and sys.argv[1]=='--md5update':
268        update_md5(sys.argv[2:])
269    else:
270        main(sys.argv[1:])
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