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setup_env.py
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setup_env.py
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import functools
import subprocess
import os
import string
import os.path
from optparse import OptionParser
OLD_CWD = os.getcwd()
parser = OptionParser()
parser.add_option("-r", "--root", dest="root", default="../ROOT",
help="Root directory for the env", metavar="ROOT")
(options, args) = parser.parse_args()
OCAML='4.00.1'
ROOT = os.path.realpath(options.root)
PREFIX = "%s/%s" % (ROOT,'OCAML')
OPAM_HOME='%s/OPAM' % ROOT
OPAM_ROOT='%s/OPAM_ROOT' % ROOT
INCUBAID_DEVEL='git://github.com/Incubaid/opam-repository-devel.git'
def sh(x, **kwargs):
print string.join(x,' ')
r = subprocess.call(x,**kwargs)
if r :
print r
raise RuntimeError("Failed to run %s %s" % (x, kwargs))
print PREFIX
env = {'PATH': string.join([PREFIX + '/bin',
OPAM_HOME + '/bin',
'/bin',
'/usr/bin',
],':'),
'HOME':os.environ['HOME']
}
extract_flags = {
'.tar.gz':'-zxvf',
'.tar.bz2':'-jxvf',
'.tbz': '-jxvf',
}
class Lib:
def __init__(self, name, extension, url_t):
self._name = name
self._extension = extension
self._archive = name + extension
self._url = url_t % self._archive
def download(self, extra = None):
fn = '%s/%s' % (ROOT, self._archive)
start = ['wget']
if extra:
start.extend(extra)
start.extend(['-O',fn,self._url])
if not os.path.exists(fn):
sh(start)
def extract(self):
flags = extract_flags[self._extension]
sh(['tar', flags, self._archive], cwd = ROOT)
def sh(self, cmd):
d = '%s/%s' % (ROOT, self._name)
sh(cmd, cwd = d, env = env)
def maybe_install_ocaml():
if os.path.exists(PREFIX):
print '%s exists, not installing ocaml compiler' % PREFIX
return
lib = Lib('ocaml-%s' % OCAML,'.tar.bz2',
'http://caml.inria.fr/pub/distrib/ocaml-4.00/%s')
lib.download()
lib.extract()
lib.sh(['./configure', '--prefix',PREFIX])
lib.sh(['make','world.opt'])
lib.sh(['make','install'])
def maybe_install_opam():
if os.path.exists(OPAM_HOME):
print '%s exists, not installing opam' % OPAM_HOME
return
lib = Lib('opam','',
'https://github.com/OCamlPro/%s/tarball/master')
lib.download()
sh(['tar','-zxvf',lib._archive], cwd = ROOT)
#which is the ocaml dir?
files = os.listdir(ROOT)
d = None
for f in files:
if f.startswith('OCamlPro'):
d = ROOT + '/' + f
break
sh(['./configure', '--prefix=%s' % OPAM_HOME], cwd = d, env = env)
sh(['make','clean'], cwd = d, env = env)
sh(['make'], cwd = d, env = env)
sh(['make','install'], cwd = d, env = env)
def maybe_install_packages():
if os.path.exists(OPAM_ROOT):
print '%s exists, not installing packages' % OPAM_ROOT
return
sh(['mkdir', '-p', OPAM_ROOT])
opam_env = env.copy()
def opam(x):
sh(['opam'] + x + ['-v', '-y', '-r', OPAM_ROOT], env = opam_env)
opam(['init'])
opam(['remote', 'add', 'devel', '-k', 'git', INCUBAID_DEVEL])
opam(['update'])
opam(['install', 'ocamlfind','baardskeerder'])
def do_it():
sh(['mkdir', '-p', ROOT])
maybe_install_ocaml()
maybe_install_opam()
maybe_install_packages()
print 'now do the following to update your environment:'
print 'eval `%s/bin/opam config env -r %s`' % (OPAM_HOME, OPAM_ROOT)
if __name__ == '__main__':
do_it()