vigiboard / ez_setup / __init__.py @ 65a9ee16
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1 | 49c8da1d | Thomas ANDREJAK | #!python
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2 | """Bootstrap setuptools installation
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3 |
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4 | If you want to use setuptools in your package's setup.py, just include this
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5 | file in the same directory with it, and add this to the top of your setup.py::
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6 |
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7 | from ez_setup import use_setuptools
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8 | use_setuptools()
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9 |
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10 | If you want to require a specific version of setuptools, set a download
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11 | mirror, or use an alternate download directory, you can do so by supplying
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12 | the appropriate options to ``use_setuptools()``.
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13 |
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14 | This file can also be run as a script to install or upgrade setuptools.
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15 | """
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16 | import sys |
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17 | DEFAULT_VERSION = "0.6c7"
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18 | DEFAULT_URL = "http://pypi.python.org/packages/%s/s/setuptools/" % sys.version[:3] |
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19 | |||
20 | md5_data = { |
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21 | 'setuptools-0.6b1-py2.3.egg': '8822caf901250d848b996b7f25c6e6ca', |
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22 | 'setuptools-0.6b1-py2.4.egg': 'b79a8a403e4502fbb85ee3f1941735cb', |
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23 | 'setuptools-0.6b2-py2.3.egg': '5657759d8a6d8fc44070a9d07272d99b', |
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24 | 'setuptools-0.6b2-py2.4.egg': '4996a8d169d2be661fa32a6e52e4f82a', |
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25 | 'setuptools-0.6b3-py2.3.egg': 'bb31c0fc7399a63579975cad9f5a0618', |
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26 | 'setuptools-0.6b3-py2.4.egg': '38a8c6b3d6ecd22247f179f7da669fac', |
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27 | 'setuptools-0.6b4-py2.3.egg': '62045a24ed4e1ebc77fe039aa4e6f7e5', |
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28 | 'setuptools-0.6b4-py2.4.egg': '4cb2a185d228dacffb2d17f103b3b1c4', |
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29 | 'setuptools-0.6c1-py2.3.egg': 'b3f2b5539d65cb7f74ad79127f1a908c', |
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30 | 'setuptools-0.6c1-py2.4.egg': 'b45adeda0667d2d2ffe14009364f2a4b', |
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31 | 'setuptools-0.6c2-py2.3.egg': 'f0064bf6aa2b7d0f3ba0b43f20817c27', |
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32 | 'setuptools-0.6c2-py2.4.egg': '616192eec35f47e8ea16cd6a122b7277', |
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33 | 'setuptools-0.6c3-py2.3.egg': 'f181fa125dfe85a259c9cd6f1d7b78fa', |
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34 | 'setuptools-0.6c3-py2.4.egg': 'e0ed74682c998bfb73bf803a50e7b71e', |
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35 | 'setuptools-0.6c3-py2.5.egg': 'abef16fdd61955514841c7c6bd98965e', |
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36 | 'setuptools-0.6c4-py2.3.egg': 'b0b9131acab32022bfac7f44c5d7971f', |
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37 | 'setuptools-0.6c4-py2.4.egg': '2a1f9656d4fbf3c97bf946c0a124e6e2', |
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38 | 'setuptools-0.6c4-py2.5.egg': '8f5a052e32cdb9c72bcf4b5526f28afc', |
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39 | 'setuptools-0.6c5-py2.3.egg': 'ee9fd80965da04f2f3e6b3576e9d8167', |
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40 | 'setuptools-0.6c5-py2.4.egg': 'afe2adf1c01701ee841761f5bcd8aa64', |
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41 | 'setuptools-0.6c5-py2.5.egg': 'a8d3f61494ccaa8714dfed37bccd3d5d', |
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42 | 'setuptools-0.6c6-py2.3.egg': '35686b78116a668847237b69d549ec20', |
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43 | 'setuptools-0.6c6-py2.4.egg': '3c56af57be3225019260a644430065ab', |
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44 | 'setuptools-0.6c6-py2.5.egg': 'b2f8a7520709a5b34f80946de5f02f53', |
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45 | 'setuptools-0.6c7-py2.3.egg': '209fdf9adc3a615e5115b725658e13e2', |
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46 | 'setuptools-0.6c7-py2.4.egg': '5a8f954807d46a0fb67cf1f26c55a82e', |
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47 | 'setuptools-0.6c7-py2.5.egg': '45d2ad28f9750e7434111fde831e8372', |
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48 | } |
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49 | |||
50 | import sys, os |
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51 | |||
52 | def _validate_md5(egg_name, data): |
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53 | if egg_name in md5_data: |
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54 | from md5 import md5 |
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55 | digest = md5(data).hexdigest() |
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56 | if digest != md5_data[egg_name]:
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57 | print >>sys.stderr, (
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58 | "md5 validation of %s failed! (Possible download problem?)"
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59 | % egg_name |
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60 | ) |
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61 | sys.exit(2)
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62 | return data
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63 | |||
64 | |||
65 | def use_setuptools( |
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66 | version=DEFAULT_VERSION, download_base=DEFAULT_URL, to_dir=os.curdir, |
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67 | download_delay=15
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68 | ): |
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69 | """Automatically find/download setuptools and make it available on sys.path
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70 |
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71 | `version` should be a valid setuptools version number that is available
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72 | as an egg for download under the `download_base` URL (which should end with
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73 | a '/'). `to_dir` is the directory where setuptools will be downloaded, if
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74 | it is not already available. If `download_delay` is specified, it should
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75 | be the number of seconds that will be paused before initiating a download,
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76 | should one be required. If an older version of setuptools is installed,
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77 | this routine will print a message to ``sys.stderr`` and raise SystemExit in
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78 | an attempt to abort the calling script.
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79 | """
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80 | try:
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81 | import setuptools |
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82 | if setuptools.__version__ == '0.0.1': |
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83 | print >>sys.stderr, (
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84 | "You have an obsolete version of setuptools installed. Please\n"
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85 | "remove it from your system entirely before rerunning this script."
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86 | ) |
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87 | sys.exit(2)
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88 | except ImportError: |
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89 | egg = download_setuptools(version, download_base, to_dir, download_delay) |
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90 | sys.path.insert(0, egg)
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91 | import setuptools; setuptools.bootstrap_install_from = egg |
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92 | |||
93 | import pkg_resources |
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94 | try:
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95 | pkg_resources.require("setuptools>="+version)
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96 | |||
97 | except pkg_resources.VersionConflict, e:
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98 | # XXX could we install in a subprocess here?
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99 | print >>sys.stderr, (
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100 | "The required version of setuptools (>=%s) is not available, and\n"
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101 | "can't be installed while this script is running. Please install\n"
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102 | " a more recent version first.\n\n(Currently using %r)"
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103 | ) % (version, e.args[0])
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104 | sys.exit(2)
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105 | |||
106 | def download_setuptools( |
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107 | version=DEFAULT_VERSION, download_base=DEFAULT_URL, to_dir=os.curdir, |
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108 | delay = 15
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109 | ): |
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110 | """Download setuptools from a specified location and return its filename
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111 |
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112 | `version` should be a valid setuptools version number that is available
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113 | as an egg for download under the `download_base` URL (which should end
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114 | with a '/'). `to_dir` is the directory where the egg will be downloaded.
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115 | `delay` is the number of seconds to pause before an actual download attempt.
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116 | """
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117 | import urllib2, shutil |
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118 | egg_name = "setuptools-%s-py%s.egg" % (version,sys.version[:3]) |
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119 | url = download_base + egg_name |
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120 | saveto = os.path.join(to_dir, egg_name) |
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121 | src = dst = None
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122 | if not os.path.exists(saveto): # Avoid repeated downloads |
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123 | try:
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124 | from distutils import log |
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125 | if delay:
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126 | log.warn("""
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127 | ---------------------------------------------------------------------------
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128 | This script requires setuptools version %s to run (even to display
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129 | help). I will attempt to download it for you (from
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130 | %s), but
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131 | you may need to enable firewall access for this script first.
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132 | I will start the download in %d seconds.
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133 |
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134 | (Note: if this machine does not have network access, please obtain the file
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135 |
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136 | %s
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137 |
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138 | and place it in this directory before rerunning this script.)
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139 | ---------------------------------------------------------------------------""",
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140 | version, download_base, delay, url |
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141 | ); from time import sleep; sleep(delay) |
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142 | log.warn("Downloading %s", url)
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143 | src = urllib2.urlopen(url) |
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144 | # Read/write all in one block, so we don't create a corrupt file
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145 | # if the download is interrupted.
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146 | data = _validate_md5(egg_name, src.read()) |
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147 | dst = open(saveto,"wb"); dst.write(data) |
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148 | finally:
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149 | if src: src.close()
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150 | if dst: dst.close()
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151 | return os.path.realpath(saveto)
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152 | |||
153 | def main(argv, version=DEFAULT_VERSION): |
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154 | """Install or upgrade setuptools and EasyInstall"""
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155 | |||
156 | try:
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157 | import setuptools |
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158 | except ImportError: |
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159 | egg = None
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160 | try:
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161 | egg = download_setuptools(version, delay=0)
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162 | sys.path.insert(0,egg)
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163 | from setuptools.command.easy_install import main |
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164 | return main(list(argv)+[egg]) # we're done here |
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165 | finally:
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166 | if egg and os.path.exists(egg): |
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167 | os.unlink(egg) |
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168 | else:
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169 | if setuptools.__version__ == '0.0.1': |
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170 | # tell the user to uninstall obsolete version
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171 | use_setuptools(version) |
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172 | |||
173 | req = "setuptools>="+version
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174 | import pkg_resources |
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175 | try:
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176 | pkg_resources.require(req) |
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177 | except pkg_resources.VersionConflict:
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178 | try:
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179 | from setuptools.command.easy_install import main |
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180 | except ImportError: |
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181 | from easy_install import main |
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182 | main(list(argv)+[download_setuptools(delay=0)]) |
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183 | sys.exit(0) # try to force an exit |
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184 | else:
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185 | if argv:
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186 | from setuptools.command.easy_install import main |
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187 | main(argv) |
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188 | else:
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189 | print "Setuptools version",version,"or greater has been installed." |
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190 | print '(Run "ez_setup.py -U setuptools" to reinstall or upgrade.)' |
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191 | |||
192 | |||
193 | |||
194 | def update_md5(filenames): |
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195 | """Update our built-in md5 registry"""
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196 | |||
197 | import re |
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198 | from md5 import md5 |
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199 | |||
200 | for name in filenames: |
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201 | base = os.path.basename(name) |
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202 | f = open(name,'rb') |
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203 | md5_data[base] = md5(f.read()).hexdigest() |
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204 | f.close() |
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205 | |||
206 | data = [" %r: %r,\n" % it for it in md5_data.items()] |
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207 | data.sort() |
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208 | repl = "".join(data)
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209 | |||
210 | import inspect |
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211 | srcfile = inspect.getsourcefile(sys.modules[__name__]) |
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212 | f = open(srcfile, 'rb'); src = f.read(); f.close() |
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213 | |||
214 | match = re.search("\nmd5_data = {\n([^}]+)}", src)
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215 | if not match: |
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216 | print >>sys.stderr, "Internal error!" |
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217 | sys.exit(2)
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218 | |||
219 | src = src[:match.start(1)] + repl + src[match.end(1):] |
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220 | f = open(srcfile,'w') |
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221 | f.write(src) |
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222 | f.close() |
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223 | |||
224 | |||
225 | if __name__=='__main__': |
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226 | if len(sys.argv)>2 and sys.argv[1]=='--md5update': |
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227 | update_md5(sys.argv[2:])
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228 | else:
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229 | main(sys.argv[1:]) |