14 """Bootstrap a buildout-based project |
14 """Bootstrap a buildout-based project |
15 |
15 |
16 Simply run this script in a directory containing a buildout.cfg. |
16 Simply run this script in a directory containing a buildout.cfg. |
17 The script accepts buildout command-line options, so you can |
17 The script accepts buildout command-line options, so you can |
18 use the -c option to specify an alternate configuration file. |
18 use the -c option to specify an alternate configuration file. |
19 |
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20 $Id$ |
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21 """ |
19 """ |
22 |
20 |
23 import os, shutil, sys, tempfile, urllib2 |
21 import os |
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22 import shutil |
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23 import sys |
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24 import tempfile |
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25 |
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26 from optparse import OptionParser |
24 |
27 |
25 tmpeggs = tempfile.mkdtemp() |
28 tmpeggs = tempfile.mkdtemp() |
26 |
29 |
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30 usage = '''\ |
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31 [DESIRED PYTHON FOR BUILDOUT] bootstrap.py [options] |
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32 |
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33 Bootstraps a buildout-based project. |
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34 |
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35 Simply run this script in a directory containing a buildout.cfg, using the |
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36 Python that you want bin/buildout to use. |
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37 |
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38 Note that by using --find-links to point to local resources, you can keep |
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39 this script from going over the network. |
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40 ''' |
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41 |
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42 parser = OptionParser(usage=usage) |
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43 parser.add_option("-v", "--version", help="use a specific zc.buildout version") |
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44 |
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45 parser.add_option("-t", "--accept-buildout-test-releases", |
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46 dest='accept_buildout_test_releases', |
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47 action="store_true", default=False, |
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48 help=("Normally, if you do not specify a --version, the " |
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49 "bootstrap script and buildout gets the newest " |
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50 "*final* versions of zc.buildout and its recipes and " |
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51 "extensions for you. If you use this flag, " |
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52 "bootstrap and buildout will get the newest releases " |
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53 "even if they are alphas or betas.")) |
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54 parser.add_option("-c", "--config-file", |
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55 help=("Specify the path to the buildout configuration " |
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56 "file to be used.")) |
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57 parser.add_option("-f", "--find-links", |
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58 help=("Specify a URL to search for buildout releases")) |
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59 parser.add_option("--allow-site-packages", |
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60 action="store_true", default=False, |
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61 help=("Let bootstrap.py use existing site packages")) |
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62 |
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63 |
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64 options, args = parser.parse_args() |
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65 |
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66 ###################################################################### |
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67 # load/install setuptools |
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68 |
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69 try: |
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70 if options.allow_site_packages: |
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71 import setuptools |
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72 import pkg_resources |
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73 from urllib.request import urlopen |
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74 except ImportError: |
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75 from urllib2 import urlopen |
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76 |
27 ez = {} |
77 ez = {} |
28 exec urllib2.urlopen('http://peak.telecommunity.com/dist/ez_setup.py' |
78 exec(urlopen('https://bootstrap.pypa.io/ez_setup.py').read(), ez) |
29 ).read() in ez |
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30 ez['use_setuptools'](to_dir=tmpeggs, download_delay=0) |
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31 |
79 |
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80 if not options.allow_site_packages: |
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81 # ez_setup imports site, which adds site packages |
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82 # this will remove them from the path to ensure that incompatible versions |
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83 # of setuptools are not in the path |
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84 import site |
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85 # inside a virtualenv, there is no 'getsitepackages'. |
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86 # We can't remove these reliably |
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87 if hasattr(site, 'getsitepackages'): |
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88 for sitepackage_path in site.getsitepackages(): |
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89 sys.path[:] = [x for x in sys.path if sitepackage_path not in x] |
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90 |
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91 setup_args = dict(to_dir=tmpeggs, download_delay=0) |
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92 ez['use_setuptools'](**setup_args) |
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93 import setuptools |
32 import pkg_resources |
94 import pkg_resources |
33 |
95 |
34 cmd = 'from setuptools.command.easy_install import main; main()' |
96 # This does not (always?) update the default working set. We will |
35 if sys.platform == 'win32': |
97 # do it. |
36 cmd = '"%s"' % cmd # work around spawn lamosity on windows |
98 for path in sys.path: |
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99 if path not in pkg_resources.working_set.entries: |
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100 pkg_resources.working_set.add_entry(path) |
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101 |
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102 ###################################################################### |
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103 # Install buildout |
37 |
104 |
38 ws = pkg_resources.working_set |
105 ws = pkg_resources.working_set |
39 assert os.spawnle( |
106 |
40 os.P_WAIT, sys.executable, sys.executable, |
107 cmd = [sys.executable, '-c', |
41 '-c', cmd, '-mqNxd', tmpeggs, 'zc.buildout', |
108 'from setuptools.command.easy_install import main; main()', |
42 dict(os.environ, |
109 '-mZqNxd', tmpeggs] |
43 PYTHONPATH= |
110 |
44 ws.find(pkg_resources.Requirement.parse('setuptools')).location |
111 find_links = os.environ.get( |
45 ), |
112 'bootstrap-testing-find-links', |
46 ) == 0 |
113 options.find_links or |
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114 ('http://downloads.buildout.org/' |
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115 if options.accept_buildout_test_releases else None) |
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116 ) |
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117 if find_links: |
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118 cmd.extend(['-f', find_links]) |
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119 |
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120 setuptools_path = ws.find( |
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121 pkg_resources.Requirement.parse('setuptools')).location |
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122 |
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123 requirement = 'zc.buildout' |
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124 version = options.version |
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125 if version is None and not options.accept_buildout_test_releases: |
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126 # Figure out the most recent final version of zc.buildout. |
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127 import setuptools.package_index |
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128 _final_parts = '*final-', '*final' |
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129 |
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130 def _final_version(parsed_version): |
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131 for part in parsed_version: |
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132 if (part[:1] == '*') and (part not in _final_parts): |
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133 return False |
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134 return True |
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135 index = setuptools.package_index.PackageIndex( |
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136 search_path=[setuptools_path]) |
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137 if find_links: |
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138 index.add_find_links((find_links,)) |
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139 req = pkg_resources.Requirement.parse(requirement) |
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140 if index.obtain(req) is not None: |
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141 best = [] |
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142 bestv = None |
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143 for dist in index[req.project_name]: |
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144 distv = dist.parsed_version |
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145 if _final_version(distv): |
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146 if bestv is None or distv > bestv: |
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147 best = [dist] |
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148 bestv = distv |
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149 elif distv == bestv: |
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150 best.append(dist) |
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151 if best: |
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152 best.sort() |
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153 version = best[-1].version |
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154 if version: |
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155 requirement = '=='.join((requirement, version)) |
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156 cmd.append(requirement) |
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157 |
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158 import subprocess |
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159 if subprocess.call(cmd, env=dict(os.environ, PYTHONPATH=setuptools_path)) != 0: |
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160 raise Exception( |
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161 "Failed to execute command:\n%s" % repr(cmd)[1:-1]) |
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162 |
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163 ###################################################################### |
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164 # Import and run buildout |
47 |
165 |
48 ws.add_entry(tmpeggs) |
166 ws.add_entry(tmpeggs) |
49 ws.require('zc.buildout') |
167 ws.require(requirement) |
50 import zc.buildout.buildout |
168 import zc.buildout.buildout |
51 zc.buildout.buildout.main(sys.argv[1:] + ['bootstrap']) |
169 |
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170 if not [a for a in args if '=' not in a]: |
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171 args.append('bootstrap') |
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172 |
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173 # if -c was provided, we push it back into args for buildout' main function |
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174 if options.config_file is not None: |
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175 args[0:0] = ['-c', options.config_file] |
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176 |
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177 zc.buildout.buildout.main(args) |
52 shutil.rmtree(tmpeggs) |
178 shutil.rmtree(tmpeggs) |
53 |
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