Mercurial > hg > carton
annotate carton.py @ 15:f05e636b7444
now you can specify the name of the env in the created script
| author | Jeff Hammel <jhammel@mozilla.com> |
|---|---|
| date | Fri, 08 Jul 2011 15:35:53 -0700 |
| parents | c474362cf69a |
| children | c91abbdc871b |
| rev | line source |
|---|---|
| 0 | 1 #!/usr/bin/env python |
| 2 | |
| 3 """ | |
| 4 make a self-extracting virtualenv from directories or URLs | |
| 5 of packages | |
| 6 | |
| 7 To package up all files in a virtualenvs source directory (e.g.): | |
| 8 | |
| 9 python path/to/carton.py mozmill mozmill/src/* | |
| 10 | |
| 11 This will create a self-extracting file, `mozmill.py`, that will unfold | |
| 12 a virtualenv | |
| 13 """ | |
| 14 | |
| 15 # imports | |
| 16 import os | |
| 17 import sys | |
| 18 import tarfile | |
| 19 import tempfile | |
| 20 import urllib2 | |
| 21 from optparse import OptionParser | |
| 22 from StringIO import StringIO | |
| 23 | |
| 24 # global variables | |
| 25 usage = "%prog [options] environment_name directory|url [...]" | |
| 26 virtualenv_url = 'http://pypi.python.org/packages/source/v/virtualenv/virtualenv-1.6.1.tar.gz' | |
| 27 template = """#!/usr/bin/env python | |
| 28 | |
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29 "create a virtualenv at %(ENV)s" |
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30 |
| 0 | 31 import os |
| 32 import shutil | |
| 33 import subprocess | |
| 34 import sys | |
| 35 import tarfile | |
| 36 import tempfile | |
| 37 from optparse import OptionParser | |
| 38 from StringIO import StringIO | |
| 39 | |
| 40 try: | |
| 41 call = subprocess.check_call | |
| 42 except AttributeError: | |
| 43 # old python; boo :( | |
| 44 call = subprocess.call | |
| 45 | |
| 46 # virtualenv name | |
| 47 ENV='''%(ENV)s''' | |
| 48 | |
| 49 # packed files | |
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50 VIRTUAL_ENV='''%(VIRTUAL_ENV)s'''.decode('base64').decode('zlib') |
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51 PACKAGE_SOURCES=%(PACKAGE_SOURCES)s |
| 0 | 52 |
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53 # parse options |
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54 usage = os.path.basename(sys.argv[0]) + ' [options]' |
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55 parser = OptionParser(usage=usage, description=__doc__) |
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56 parser.add_option('--env', dest='env', help="environment name [DEFAULT: " + ENV + "]") |
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57 options, args = parser.parse_args() |
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58 if options.env: |
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59 ENV = options.env |
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60 |
| 0 | 61 # unpack virtualenv |
| 62 tempdir = tempfile.mkdtemp() | |
| 63 buffer = StringIO() | |
| 64 buffer.write(VIRTUAL_ENV) | |
| 65 buffer.seek(0) | |
| 66 tf = tarfile.open(mode='r', fileobj=buffer) | |
| 67 tf.extractall(tempdir) | |
| 68 | |
| 69 # find the virtualenv | |
| 70 for root, dirs, files in os.walk(tempdir): | |
| 71 if 'virtualenv.py' in files: | |
| 72 virtualenv = os.path.join(root, 'virtualenv.py') | |
| 73 break | |
| 74 else: | |
| 75 raise Exception("virtualenv.py not found in " + tempdir) | |
| 76 print virtualenv | |
| 77 | |
| 78 # create the virtualenv | |
| 79 call([sys.executable, virtualenv, ENV]) | |
| 80 | |
| 81 # find the bin/scripts directory | |
| 82 for i in ('bin', 'Scripts'): | |
| 83 scripts_dir = os.path.abspath(os.path.join(ENV, i)) | |
| 84 if os.path.exists(scripts_dir): | |
| 85 break | |
| 86 else: | |
| 87 raise Exception("Scripts directory not found in " + ENV) | |
| 88 | |
| 89 # find the virtualenv's python | |
| 90 for i in ('python', 'python.exe'): | |
| 91 python = os.path.join(scripts_dir, i) | |
| 92 if os.path.exists(python): | |
| 93 break | |
| 94 else: | |
| 95 raise Exception("python not found in " + scripts_dir) | |
| 96 | |
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97 # unpack the sources and setup for development |
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98 srcdir = os.path.join(ENV, 'src') |
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99 os.mkdir(srcdir) |
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100 setup_pys = set() |
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101 for source in PACKAGE_SOURCES: |
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102 source = source.decode('base64').decode('zlib') |
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103 buffer = StringIO() |
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104 buffer.write(source) |
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105 buffer.seek(0) |
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106 tf = tarfile.open(mode='r', fileobj=buffer) |
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107 tf.extractall(srcdir) |
| 0 | 108 |
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109 # setup sources for development if there are any new setup.py files |
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110 for i in os.listdir(srcdir): |
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111 if i in setup_pys: |
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112 continue |
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113 subdir = os.path.join(srcdir, i) |
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114 if os.path.exists(os.path.join(srcdir, i, 'setup.py')): |
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115 call([python, 'setup.py', 'develop'], cwd=subdir) |
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116 setup_pys.add(i) |
| 0 | 117 |
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118 # cleanup tempdir # TODO (optionally?) |
| 0 | 119 # shutil.rmtree(tempdir) |
| 120 | |
| 121 # TODO: | |
| 122 # - add carton to the virtualenv (!) | |
| 123 # - add virtualenv to the virtualenv (!) | |
| 124 """ | |
| 125 | |
| 126 def isURL(path): | |
| 127 return path.startswith('http://') or path.startswith('https://') | |
| 128 | |
| 129 def main(args=sys.argv[1:]): | |
| 130 | |
| 131 # parse CLI arguments | |
| 132 parser = OptionParser(usage=usage, description=__doc__) | |
| 133 parser.add_option('-o', dest='outfile', | |
| 134 help="specify outfile; otherwise it will come from environment_name") | |
| 135 parser.add_option('--virtualenv', dest='virtualenv', | |
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136 help="use this virtualenv URL or file tarball") |
| 0 | 137 options, args = parser.parse_args(args) |
| 138 if len(args) < 2: | |
| 139 parser.print_usage() | |
| 140 parser.exit() | |
| 141 environment = args[0] | |
| 142 if environment.endswith('.py'): | |
| 143 # stop on .py; will add it in later | |
| 144 environment = environment[:-3] | |
| 145 sources = args[1:] | |
| 146 | |
| 147 # tar up the sources | |
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148 source_array = [] |
| 0 | 149 for source in sources: |
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150 buffer = None |
| 0 | 151 |
| 152 if isURL(source): | |
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153 # remote tarball or resource |
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154 buffer = urllib2.urlopen(source).read() |
| 0 | 155 else: |
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156 assert os.path.exists(source), "%s does not exist" % source |
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157 |
| 0 | 158 # local directory or tarball |
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159 if (not os.path.isdir(source)) and tarfile.is_tarfile(source): |
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160 # check for a tarball |
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161 buffer = file(source).read() |
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162 else: |
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163 source_buffer = StringIO() |
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164 source_tar = tarfile.open(mode="w:gz", fileobj=source_buffer) |
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165 source_tar.add(source, arcname=os.path.basename(source)) |
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166 source_tar.close() |
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167 buffer = source_buffer.getvalue() |
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168 |
| 0 | 169 # could use git, hg, etc repos. but probably shouldn't |
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170 |
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171 source_array.append(buffer.encode('zlib').encode('base64')) |
| 0 | 172 |
| 173 # tar up virtualenv if not available | |
| 174 if options.virtualenv: | |
| 175 if isURL(options.virtualenv): | |
| 176 globals()['VIRTUAL_ENV'] = urllib2.urlopen(options.virtualenv).read() | |
| 177 else: | |
| 178 assert os.path.exists(options.virtualenv) | |
| 179 if os.path.isdir(options.virtualenv): | |
| 180 raise NotImplementedError("Hypothetically you should be able to use a local directory or tarball, but I haven't done this yet") | |
| 181 else: | |
| 182 # assert a tarfile | |
| 183 assert tarfile.is_tarfile(options.virtualenv), "%s must be a tar file" % options.virtualenv | |
| 184 globals()['VIRTUAL_ENV'] = file(options.virtualenv).read() | |
| 185 else: | |
| 186 globals()['VIRTUAL_ENV'] = urllib2.urlopen(virtualenv_url).read() | |
| 187 # TODO: used the below hashed value of VIRTUAL_ENV if set | |
| 188 # (set that with another file) | |
| 189 | |
| 190 # interpolate "template" -> output | |
| 191 outfile = options.outfile | |
| 192 if outfile is None: | |
| 193 outfile = environment + '.py' | |
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194 variables = {'VIRTUAL_ENV': VIRTUAL_ENV.encode('zlib').encode('base64'), |
| 0 | 195 'ENV': environment, |
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196 'PACKAGE_SOURCES': repr(source_array)} |
| 0 | 197 f = file(outfile, 'w') |
| 198 f.write(template % variables) | |
| 199 f.close() | |
| 200 try: | |
| 201 os.chmod(outfile, 0755) | |
| 202 except: | |
| 203 # you probably don't have os.chmod | |
| 204 pass | |
| 205 | |
| 206 VIRTUAL_ENV = """""" | |
| 207 | |
| 208 if __name__ == '__main__': | |
| 209 main() |