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annotate ez_setup.py @ 1281:faf31099a70a beta
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| author | Marcin Kuzminski <marcin@python-works.com> |
|---|---|
| date | Sun, 03 Apr 2011 18:49:12 +0200 |
| parents | 6832ef664673 |
| children | bf263968da47 |
| rev | line source |
|---|---|
| 0 | 1 #!python |
| 2 """Bootstrap setuptools installation | |
| 3 | |
| 4 If you want to use setuptools in your package's setup.py, just include this | |
| 5 file 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 | |
| 10 If you want to require a specific version of setuptools, set a download | |
| 11 mirror, or use an alternate download directory, you can do so by supplying | |
| 12 the appropriate options to ``use_setuptools()``. | |
| 13 | |
| 14 This file can also be run as a script to install or upgrade setuptools. | |
| 15 """ | |
| 16 import sys | |
| 17 DEFAULT_VERSION = "0.6c9" | |
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18 DEFAULT_URL = "http://pypi.python.org/packages/%s/s/setuptools/" \ |
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19 % sys.version[:3] |
| 0 | 20 |
| 21 md5_data = { | |
| 22 'setuptools-0.6b1-py2.3.egg': '8822caf901250d848b996b7f25c6e6ca', | |
| 23 'setuptools-0.6b1-py2.4.egg': 'b79a8a403e4502fbb85ee3f1941735cb', | |
| 24 'setuptools-0.6b2-py2.3.egg': '5657759d8a6d8fc44070a9d07272d99b', | |
| 25 'setuptools-0.6b2-py2.4.egg': '4996a8d169d2be661fa32a6e52e4f82a', | |
| 26 'setuptools-0.6b3-py2.3.egg': 'bb31c0fc7399a63579975cad9f5a0618', | |
| 27 'setuptools-0.6b3-py2.4.egg': '38a8c6b3d6ecd22247f179f7da669fac', | |
| 28 'setuptools-0.6b4-py2.3.egg': '62045a24ed4e1ebc77fe039aa4e6f7e5', | |
| 29 'setuptools-0.6b4-py2.4.egg': '4cb2a185d228dacffb2d17f103b3b1c4', | |
| 30 'setuptools-0.6c1-py2.3.egg': 'b3f2b5539d65cb7f74ad79127f1a908c', | |
| 31 'setuptools-0.6c1-py2.4.egg': 'b45adeda0667d2d2ffe14009364f2a4b', | |
| 32 'setuptools-0.6c2-py2.3.egg': 'f0064bf6aa2b7d0f3ba0b43f20817c27', | |
| 33 'setuptools-0.6c2-py2.4.egg': '616192eec35f47e8ea16cd6a122b7277', | |
| 34 'setuptools-0.6c3-py2.3.egg': 'f181fa125dfe85a259c9cd6f1d7b78fa', | |
| 35 'setuptools-0.6c3-py2.4.egg': 'e0ed74682c998bfb73bf803a50e7b71e', | |
| 36 'setuptools-0.6c3-py2.5.egg': 'abef16fdd61955514841c7c6bd98965e', | |
| 37 'setuptools-0.6c4-py2.3.egg': 'b0b9131acab32022bfac7f44c5d7971f', | |
| 38 'setuptools-0.6c4-py2.4.egg': '2a1f9656d4fbf3c97bf946c0a124e6e2', | |
| 39 'setuptools-0.6c4-py2.5.egg': '8f5a052e32cdb9c72bcf4b5526f28afc', | |
| 40 'setuptools-0.6c5-py2.3.egg': 'ee9fd80965da04f2f3e6b3576e9d8167', | |
| 41 'setuptools-0.6c5-py2.4.egg': 'afe2adf1c01701ee841761f5bcd8aa64', | |
| 42 'setuptools-0.6c5-py2.5.egg': 'a8d3f61494ccaa8714dfed37bccd3d5d', | |
| 43 'setuptools-0.6c6-py2.3.egg': '35686b78116a668847237b69d549ec20', | |
| 44 'setuptools-0.6c6-py2.4.egg': '3c56af57be3225019260a644430065ab', | |
| 45 'setuptools-0.6c6-py2.5.egg': 'b2f8a7520709a5b34f80946de5f02f53', | |
| 46 'setuptools-0.6c7-py2.3.egg': '209fdf9adc3a615e5115b725658e13e2', | |
| 47 'setuptools-0.6c7-py2.4.egg': '5a8f954807d46a0fb67cf1f26c55a82e', | |
| 48 'setuptools-0.6c7-py2.5.egg': '45d2ad28f9750e7434111fde831e8372', | |
| 49 'setuptools-0.6c8-py2.3.egg': '50759d29b349db8cfd807ba8303f1902', | |
| 50 'setuptools-0.6c8-py2.4.egg': 'cba38d74f7d483c06e9daa6070cce6de', | |
| 51 'setuptools-0.6c8-py2.5.egg': '1721747ee329dc150590a58b3e1ac95b', | |
| 52 'setuptools-0.6c9-py2.3.egg': 'a83c4020414807b496e4cfbe08507c03', | |
| 53 'setuptools-0.6c9-py2.4.egg': '260a2be2e5388d66bdaee06abec6342a', | |
| 54 'setuptools-0.6c9-py2.5.egg': 'fe67c3e5a17b12c0e7c541b7ea43a8e6', | |
| 55 'setuptools-0.6c9-py2.6.egg': 'ca37b1ff16fa2ede6e19383e7b59245a', | |
| 56 } | |
| 57 | |
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58 import os |
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59 |
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60 try: |
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61 from hashlib import md5 |
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62 except ImportError: |
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63 from md5 import md5 |
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64 |
| 0 | 65 |
| 66 def _validate_md5(egg_name, data): | |
| 67 if egg_name in md5_data: | |
| 68 digest = md5(data).hexdigest() | |
| 69 if digest != md5_data[egg_name]: | |
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70 print >> sys.stderr, ( |
| 0 | 71 "md5 validation of %s failed! (Possible download problem?)" |
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72 % egg_name) |
| 0 | 73 sys.exit(2) |
| 74 return data | |
| 75 | |
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76 |
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77 def use_setuptools(version=DEFAULT_VERSION, download_base=DEFAULT_URL, |
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78 to_dir=os.curdir, download_delay=15): |
| 0 | 79 """Automatically find/download setuptools and make it available on sys.path |
| 80 | |
| 81 `version` should be a valid setuptools version number that is available | |
| 82 as an egg for download under the `download_base` URL (which should end with | |
| 83 a '/'). `to_dir` is the directory where setuptools will be downloaded, if | |
| 84 it is not already available. If `download_delay` is specified, it should | |
| 85 be the number of seconds that will be paused before initiating a download, | |
| 86 should one be required. If an older version of setuptools is installed, | |
| 87 this routine will print a message to ``sys.stderr`` and raise SystemExit in | |
| 88 an attempt to abort the calling script. | |
| 89 """ | |
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90 was_imported = 'pkg_resources' in sys.modules or ('setuptools' in |
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91 sys.modules) |
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92 |
| 0 | 93 def do_download(): |
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94 egg = download_setuptools(version, download_base, to_dir, |
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95 download_delay) |
| 0 | 96 sys.path.insert(0, egg) |
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97 import setuptools |
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98 setuptools.bootstrap_install_from = egg |
| 0 | 99 try: |
| 100 import pkg_resources | |
| 101 except ImportError: | |
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102 return do_download() |
| 0 | 103 try: |
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104 pkg_resources.require("setuptools>=" + version) |
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105 return |
| 0 | 106 except pkg_resources.VersionConflict, e: |
| 107 if was_imported: | |
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108 print >> sys.stderr, ( |
| 0 | 109 "The required version of setuptools (>=%s) is not available, and\n" |
| 110 "can't be installed while this script is running. Please install\n" | |
| 111 " a more recent version first, using 'easy_install -U setuptools'." | |
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112 "\n\n(Currently using %r)") % (version, e.args[0]) |
| 0 | 113 sys.exit(2) |
| 114 else: | |
| 115 del pkg_resources, sys.modules['pkg_resources'] # reload ok | |
| 116 return do_download() | |
| 117 except pkg_resources.DistributionNotFound: | |
| 118 return do_download() | |
| 119 | |
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120 |
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121 def download_setuptools(version=DEFAULT_VERSION, download_base=DEFAULT_URL, |
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122 to_dir=os.curdir, delay=15): |
| 0 | 123 """Download setuptools from a specified location and return its filename |
| 124 | |
| 125 `version` should be a valid setuptools version number that is available | |
| 126 as an egg for download under the `download_base` URL (which should end | |
| 127 with a '/'). `to_dir` is the directory where the egg will be downloaded. | |
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128 `delay` is the number of seconds to pause before an actual download |
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129 attempt. |
| 0 | 130 """ |
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131 import urllib2 |
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132 |
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133 egg_name = "setuptools-%s-py%s.egg" % (version, sys.version[:3]) |
| 0 | 134 url = download_base + egg_name |
| 135 saveto = os.path.join(to_dir, egg_name) | |
| 136 src = dst = None | |
| 137 if not os.path.exists(saveto): # Avoid repeated downloads | |
| 138 try: | |
| 139 from distutils import log | |
| 140 if delay: | |
| 141 log.warn(""" | |
| 142 --------------------------------------------------------------------------- | |
| 143 This script requires setuptools version %s to run (even to display | |
| 144 help). I will attempt to download it for you (from | |
| 145 %s), but | |
| 146 you may need to enable firewall access for this script first. | |
| 147 I will start the download in %d seconds. | |
| 148 | |
| 149 (Note: if this machine does not have network access, please obtain the file | |
| 150 | |
| 151 %s | |
| 152 | |
| 153 and place it in this directory before rerunning this script.) | |
| 154 ---------------------------------------------------------------------------""", | |
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155 version, download_base, delay, url) |
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156 from time import sleep |
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157 sleep(delay) |
| 0 | 158 log.warn("Downloading %s", url) |
| 159 src = urllib2.urlopen(url) | |
| 160 # Read/write all in one block, so we don't create a corrupt file | |
| 161 # if the download is interrupted. | |
| 162 data = _validate_md5(egg_name, src.read()) | |
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163 dst = open(saveto, "wb") |
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164 dst.write(data) |
| 0 | 165 finally: |
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166 if src: |
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167 src.close() |
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168 if dst: |
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169 dst.close() |
| 0 | 170 return os.path.realpath(saveto) |
| 171 | |
| 172 | |
| 173 def main(argv, version=DEFAULT_VERSION): | |
| 174 """Install or upgrade setuptools and EasyInstall""" | |
| 175 try: | |
| 176 import setuptools | |
| 177 except ImportError: | |
| 178 egg = None | |
| 179 try: | |
| 180 egg = download_setuptools(version, delay=0) | |
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181 sys.path.insert(0, egg) |
| 0 | 182 from setuptools.command.easy_install import main |
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183 return main(list(argv) + [egg]) # we're done here |
| 0 | 184 finally: |
| 185 if egg and os.path.exists(egg): | |
| 186 os.unlink(egg) | |
| 187 else: | |
| 188 if setuptools.__version__ == '0.0.1': | |
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189 print >> sys.stderr, ( |
| 0 | 190 "You have an obsolete version of setuptools installed. Please\n" |
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191 "remove it from your system entirely before rerunning" |
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192 " this script.") |
| 0 | 193 sys.exit(2) |
| 194 | |
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195 req = "setuptools>=" + version |
| 0 | 196 import pkg_resources |
| 197 try: | |
| 198 pkg_resources.require(req) | |
| 199 except pkg_resources.VersionConflict: | |
| 200 try: | |
| 201 from setuptools.command.easy_install import main | |
| 202 except ImportError: | |
| 203 from easy_install import main | |
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204 main(list(argv) + [download_setuptools(delay=0)]) |
| 0 | 205 sys.exit(0) # try to force an exit |
| 206 else: | |
| 207 if argv: | |
| 208 from setuptools.command.easy_install import main | |
| 209 main(argv) | |
| 210 else: | |
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211 print "Setuptools version", version, "or greater has been installed." |
| 0 | 212 print '(Run "ez_setup.py -U setuptools" to reinstall or upgrade.)' |
| 213 | |
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214 |
| 0 | 215 def update_md5(filenames): |
| 216 """Update our built-in md5 registry""" | |
| 217 | |
| 218 import re | |
| 219 | |
| 220 for name in filenames: | |
| 221 base = os.path.basename(name) | |
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222 f = open(name, 'rb') |
| 0 | 223 md5_data[base] = md5(f.read()).hexdigest() |
| 224 f.close() | |
| 225 | |
| 226 data = [" %r: %r,\n" % it for it in md5_data.items()] | |
| 227 data.sort() | |
| 228 repl = "".join(data) | |
| 229 | |
| 230 import inspect | |
| 231 srcfile = inspect.getsourcefile(sys.modules[__name__]) | |
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232 f = open(srcfile, 'rb') |
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233 src = f.read() |
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234 f.close() |
| 0 | 235 |
| 236 match = re.search("\nmd5_data = {\n([^}]+)}", src) | |
| 237 if not match: | |
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238 print >> sys.stderr, "Internal error!" |
| 0 | 239 sys.exit(2) |
| 240 | |
| 241 src = src[:match.start(1)] + repl + src[match.end(1):] | |
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242 f = open(srcfile, 'w') |
| 0 | 243 f.write(src) |
| 244 f.close() | |
| 245 | |
| 246 | |
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247 if __name__ == '__main__': |
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248 if len(sys.argv) > 2 and sys.argv[1] == '--md5update': |
| 0 | 249 update_md5(sys.argv[2:]) |
| 250 else: | |
| 251 main(sys.argv[1:]) |