Mercurial > hg > carton

annotate carton.py @ 28:dabf5e1bdf92

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version bump
author Jeff Hammel <jhammel@mozilla.com>
date Sun, 10 Jul 2011 18:50:49 -0700
parents dace84448c25
children 533a4f9718d9
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1 #!/usr/bin/env python
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2
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3 """
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4 make a self-extracting virtualenv from directories or URLs
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5 of packages
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6
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7 To package up all files in a virtualenvs source directory (e.g.):
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8
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9 python path/to/carton.py mozmill mozmill/src/*
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10
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11 This will create a self-extracting file, `mozmill.py`, that will unfold
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12 a virtualenv with the specified packages setup for development
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13 """
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14
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15 # imports
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16 import os
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17 import sys
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18 import subprocess
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19 import tarfile
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20 import tempfile
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21 import urllib2
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22 from optparse import OptionParser
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23 from StringIO import StringIO
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24
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25 # global variables
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26 usage = "%prog [options] environment_name directory|url [...]"
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27 virtualenv_url = 'http://pypi.python.org/packages/source/v/virtualenv/virtualenv-1.6.1.tar.gz'
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28 template = """#!/usr/bin/env python
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29
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30 "create a virtualenv at %(ENV)s"
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31
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32 import os
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33 import shutil
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34 import subprocess
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35 import sys
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36 import tarfile
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37 import tempfile
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38 from optparse import OptionParser
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39 from StringIO import StringIO
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40
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41 try:
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42 call = subprocess.check_call
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43 except AttributeError:
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44 # old python; boo :(
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45 call = subprocess.call
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46
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47 # virtualenv name
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48 ENV='''%(ENV)s'''
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49
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50 # packed files
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51 VIRTUAL_ENV='''%(VIRTUAL_ENV)s'''.decode('base64').decode('zlib')
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52 PACKAGE_SOURCES=%(PACKAGE_SOURCES)s
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53 CARTON=%(CARTON)s
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54
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55 # parse options
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56 usage = os.path.basename(sys.argv[0]) + ' [options]'
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57 parser = OptionParser(usage=usage, description=__doc__)
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58 parser.add_option('--env', dest='env', help="environment name [DEFAULT: " + ENV + "]")
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59 options, args = parser.parse_args()
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60 if options.env:
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61 ENV = options.env
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62
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63 # unpack virtualenv
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64 tempdir = tempfile.mkdtemp()
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65 buffer = StringIO()
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66 buffer.write(VIRTUAL_ENV)
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67 buffer.seek(0)
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68 tf = tarfile.open(mode='r', fileobj=buffer)
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69 tf.extractall(tempdir)
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70
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71 # find the virtualenv
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72 for root, dirs, files in os.walk(tempdir):
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73 if 'virtualenv.py' in files:
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74 virtualenv = os.path.join(root, 'virtualenv.py')
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75 break
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76 else:
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77 raise Exception("virtualenv.py not found in " + tempdir)
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78
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79 # create the virtualenv
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80 os.environ.pop('PYTHONHOME', None)
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81 call([sys.executable, virtualenv, ENV])
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82
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83 # find the bin/scripts directory
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84 for i in ('bin', 'Scripts'):
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85 scripts_dir = os.path.abspath(os.path.join(ENV, i))
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86 if os.path.exists(scripts_dir):
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87 break
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88 else:
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89 raise Exception("Scripts directory not found in " + ENV)
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90
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91 # find the virtualenv's python
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92 for i in ('python', 'python.exe'):
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93 python = os.path.join(scripts_dir, i)
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94 if os.path.exists(python):
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95 break
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96 else:
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97 raise Exception("python not found in " + scripts_dir)
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98
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99 # unpack the sources and setup for development
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100 srcdir = os.path.join(ENV, 'src')
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101 os.mkdir(srcdir)
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102 setup_pys = set()
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103 for source in PACKAGE_SOURCES:
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104 source = source.decode('base64').decode('zlib')
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105 buffer = StringIO()
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106 buffer.write(source)
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107 buffer.seek(0)
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108 tf = tarfile.open(mode='r', fileobj=buffer)
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109 tf.extractall(srcdir)
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110
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111 # setup sources for development if there are any new setup.py files
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112 # TODO: ideally this would figure out dependency order for you
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113 for i in os.listdir(srcdir):
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114 if i in setup_pys:
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115 continue
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116 subdir = os.path.join(srcdir, i)
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117 if os.path.exists(os.path.join(srcdir, i, 'setup.py')):
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118 call([python, 'setup.py', 'develop'], cwd=subdir)
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119 setup_pys.add(i)
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120
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121 # add virtualenv to the virtualenv (!)
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122 virtualenv_dir = os.path.dirname(virtualenv)
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123 if os.path.exists(os.path.join(virtualenv_dir, 'setup.py')):
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124 call([python, 'setup.py', 'install'], cwd=virtualenv_dir, stdout=subprocess.PIPE)
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125
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126 # add carton to the virtualenv (!)
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127 if CARTON:
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128 CARTON = CARTON.decode('base64').decode('zlib')
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129 carton_filename = os.path.join(scripts_dir, 'carton.py')
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130 f = file(carton_filename, 'w')
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131 f.write(CARTON)
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132 f.close()
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133 try:
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134 os.chmod(carton_filename, 0755)
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135 except:
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136 # you probably don't have os.chmod
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137 pass
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138
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139 # TODO: cleanup tempdir
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140 # shutil.rmtree(tempdir)
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141 """
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142
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143 def isURL(path):
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144 return path.startswith('http://') or path.startswith('https://')
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145
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146 try:
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147 call = subprocess.check_call
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148 except AttributeError:
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149 # old python; boo :(
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150 call = subprocess.call
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151
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152 def main(args=sys.argv[1:]):
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153
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154 # parse CLI arguments
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155 parser = OptionParser(usage=usage, description=__doc__)
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156 parser.add_option('-o', dest='outfile',
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157 help="specify outfile; otherwise it will come from environment_name")
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158 parser.add_option('-p', '--package', dest='package',
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159 action='store_true', default=False,
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160 help="create python packages from sources; do not take entire subdirectory")
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161 parser.add_option('--virtualenv', dest='virtualenv',
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162 help="use this virtualenv URL or file tarball")
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163 options, args = parser.parse_args(args)
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164 if len(args) < 2:
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165 parser.print_usage()
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166 parser.exit()
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167 environment = args[0]
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168 if environment.endswith('.py'):
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169 # stop on .py; will add it in later
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170 environment = environment[:-3]
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171 sources = args[1:]
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172
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173 # tar up the sources
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174 source_array = []
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175 for source in sources:
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176 buffer = None
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177
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178 if isURL(source):
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179 # remote tarball or resource
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180 buffer = urllib2.urlopen(source).read()
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181 else:
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182 # local directory or tarball
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183 assert os.path.exists(source), "%s does not exist" % source
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184
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185 # package up the source if applicable
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186 if options.package and os.path.exists(os.path.join(source, 'setup.py')):
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187
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188 # create a .tar.gz package
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189 call([sys.executable, 'setup.py', 'sdist'], cwd=source, stdout=subprocess.PIPE)
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190 dist_dir = os.path.join(source, 'dist')
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191 assert os.path.isdir(dist_dir), "dist directory not created in %s" % source
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192 tarfiles = [i for i in os.listdir(dist_dir)
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193 if i.endswith('.tar.gz')]
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194 assert tarfiles, "no .tar.gz files found in %s" % dist_dir
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195
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196 # use the last modified tarball
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197 def last_modified(filename):
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198 return os.path.getmtime(os.path.join(dist_dir, filename))
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199 tarfiles.sort(key=last_modified)
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200 source = os.path.join(dist_dir, tarfiles[-1])
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201
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202 if (not os.path.isdir(source)) and tarfile.is_tarfile(source):
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203 # check for a tarball
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204 buffer = file(source).read()
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205 else:
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206 # add other sources (files and directories) to the archive
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207 source_buffer = StringIO()
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208 source_tar = tarfile.open(mode="w:gz", fileobj=source_buffer)
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209 source_tar.add(source, arcname=os.path.basename(source.rstrip(os.path.sep)))
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210 source_tar.close()
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211 buffer = source_buffer.getvalue()
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212
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213 # could use git, hg, etc repos. but probably shouldn't
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214
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215 source_array.append(buffer.encode('zlib').encode('base64'))
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216
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217 # tar up virtualenv if not available
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218 if options.virtualenv:
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219 if isURL(options.virtualenv):
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220 globals()['VIRTUAL_ENV'] = urllib2.urlopen(options.virtualenv).read()
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221 else:
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222 assert os.path.exists(options.virtualenv)
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223 if os.path.isdir(options.virtualenv):
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224 raise NotImplementedError("Hypothetically you should be able to use a local directory or tarball, but I haven't done this yet")
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225 else:
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226 # assert a tarfile
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227 assert tarfile.is_tarfile(options.virtualenv), "%s must be a tar file" % options.virtualenv
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228 globals()['VIRTUAL_ENV'] = file(options.virtualenv).read()
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229 else:
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230 globals()['VIRTUAL_ENV'] = urllib2.urlopen(virtualenv_url).read()
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231 # TODO: used the below hashed value of VIRTUAL_ENV if set
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232 # (set that with another file)
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233
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234 # get the contents of this file
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235 carton = None
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236 try:
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237 if __file__:
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238 filename = __file__.rstrip('c') # avoid pyfiles
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239 if os.path.exists(filename):
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240 carton = file(filename).read().encode('zlib').encode('base64')
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241 except NameError:
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242 pass
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243
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244 # interpolate "template" -> output
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245 outfile = options.outfile
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246 if outfile is None:
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247 outfile = environment + '.py'
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248 variables = {'VIRTUAL_ENV': VIRTUAL_ENV.encode('zlib').encode('base64'),
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249 'ENV': environment,
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250 'CARTON': repr(carton),
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251 'PACKAGE_SOURCES': repr(source_array)}
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252 f = file(outfile, 'w')
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253 f.write(template % variables)
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254 f.close()
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255 try:
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256 os.chmod(outfile, 0755)
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257 except:
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258 # you probably don't have os.chmod
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259 pass
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260
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261 VIRTUAL_ENV = """"""
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262
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263 if __name__ == '__main__':
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264 main()