rivet-bootstrap
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	#! /usr/bin/env python

	## $Date: 2012-04-19 14:18:51 +0100 (Thu, 19 Apr 2012) $
	## $Revision: 3696 $

	"""\
	%prog [options]

	%prog is a helper script which downloads and installs Rivet and the
	other packages needed to get the Rivet generator validation system up and
	running. It tries to be relatively intelligent about what it downloads so that,
	e.g. for users on systems with the LCG applications mounted in
	/afs/cern.ch/sw/lcg/external it will try to build Rivet using those when
	possible, rather than downloading and building things that are already
	available.

	TODO:
	* Build logging: can we stream build output as it happens (in verbose mode)?
	"""

	import os, sys
	import logging
	import shutil, commands


	def compute_lcg_tag():
	import platform
	import re

	## Get distribution
	slversion = None
	osxversion = None
	distribution = platform.system()
	## SL tests
	rhreleasepath = "/etc/redhat-release"
	if os.path.exists(rhreleasepath):
	distribution = "redhat"
	f = open(rhreleasepath, "r")
	#sltest = commands.getoutput("lsb_release -ds")
	sltest = f.read()
	f.close()
	if "Scientific Linux" in sltest:
	#slversion = [int(i) for i in commands.getoutput("lsb_release -rs").split(".")]
	m = re.search(r'Scientific Linux.? (\d)\.(\d).', sltest)
	if m:
	slversion = [int(m.group(1)), int(m.group(2))]
	distribution = "slc%d" % slversion[0]
	## Mac tests
	if distribution == "Darwin":
	osxversion = (10,4)
	macver = platform.mac_ver()[0]
	if len(macver) > 0:
	ver = macver.split(".")
	osxversion = [int(i) for i in ver]
	distribution = "mac%d%d" % (osxversion[0], osxversion[1])
	## Windows tests
	if distribution == "Windows":
	distribution = "winxp"
	logging.debug("OS: " + distribution)


	## Get architecture
	machine = platform.machine()
	logging.debug("Architecture: " + machine)


	## Get compiler version
	compiler_code = None
	vcversion = None
	if distribution != "winxp":
	## Get GCC version
	GCC_CMD = "g++"
	if os.environ.has_key("CC"):
	GCC_CMD = os.environ["CC"]
	elif os.environ.has_key("CXX"):
	GCC_CMD = os.environ["CXX"]
	gcc_version_str = commands.getoutput(GCC_CMD + ' --version \| head -1')
	gcc_version_match = re.search(r'.? (\d)\.(\d)\.?(\d)?.?', gcc_version_str)
	compiler_code = "gccXX"
	if gcc_version_match is not None:
	gcc_major = gcc_version_match.group(1)
	gcc_minor = gcc_version_match.group(2)
	gcc_micro = gcc_version_match.group(3)
	compiler_code = "gcc%s%s" % (gcc_major, gcc_minor)
	else:
	## Try to find VC version... somehow!
	import distutils.msvccompiler as msvc
	vcversions = sorted(msvc.get_devstudio_versions())
	vcversion = vcversions[0]
	compiler_code = "vc%s" % vcversion


	## the "future-proof" platform tag
	LCGPLATFORM = "%s-%s-%s-%s" % (machine, distribution, compiler_code, "opt")


	## Historical platform tags
	if vcversion is not None and vcversion < 9:
	logging.debug("Computing old-style Windows tag to replace " + LCGPLATFORM)
	LCGPLATFORM = "win32_vc71_dbg"
	elif slversion is not None and slversion[0] < 5 or \
	osxversion is not None and osxversion[1] < 6:
	logging.debug("Computing old-style tag to replace " + LCGPLATFORM)

	## Different arch codes
	if "64" in machine:
	machine = "amd64"
	else:
	machine = "ia32"

	## Old Mac code is "osx" rather than "mac"
	if osxversion:
	distribution = distribution.replace("mac", "osx")

	## Historical exceptions for GCC version
	if compiler_code in ["gcc32", "gcc40"] and gcc_micro is not None:
	compiler_code += gcc_micro

	## Set legacy LCG platform
	LCGPLATFORM = "%s_%s_%s" % (distribution, machine, compiler_code)

	# ## For Macs, append "_dbg" if needed
	# if osxversion and opts.BUILD_TYPE == "dbg":
	# LCGPLATFORM += "_dbg"

	return LCGPLATFORM



	##############################



	from optparse import OptionParser

	DEFAULTPREFIX = os.path.join(os.getcwd(), "local")

	parser = OptionParser(usage=__doc__)
	parser.add_option("--prefix", metavar="INSTALLDIR", default=DEFAULTPREFIX, dest="PREFIX",
	help="Location to install packages to [%default]")
	parser.add_option("--force", action="store_true", default=False, dest="FORCE",
	help="Overwrite existing tarballs [%default]")
	parser.add_option("-j", default="2", dest="JMAKE",
	help="Num of 'make' threads to run in parallel (the n in 'make -j<n>') [%default]")
	parser.add_option("--dev-mode", action="store_true", default=False, dest="DEV_MODE",
	help="Use the SVN development head version of Rivet [%default]")
	parser.add_option("--devmode", action="store_true", default=False, dest="DEV_MODE",
	help="Deprecated: alias for --dev-mode [%default]")
	parser.add_option("--lcgextdir", default="/afs/cern.ch/sw/lcg/external", dest="LCGDIR",
	help="Standard location of LCG external packages [%default]")
	parser.add_option("--lcgtag", default=compute_lcg_tag(), dest="LCGTAG",
	help="Force the LCG platform tag if it's not being computed correctly [%default]")
	parser.add_option("--ignore-lcgext", action="store_true", default=False, dest="IGNORE_LCG",
	help="Always bootstrap from sources, even if LCG versions are available [%default]")
	parser.add_option("--no-install-rivet", action="store_false", default=True, dest="INSTALL_RIVET",
	help="Don't install Rivet! Useful to set up required packages, or AGILe only [install=%default]")
	parser.add_option("--rivet-version", default="1.8.0", dest="RIVET_VERSION",
	help="Explicitly specify version of Rivet to get and use [%default]")
	parser.add_option("--rivet-url", default="http://www.hepforge.org/archive/rivet/",
	dest="RIVET_URL", help="Base URL for Rivet tarball downloads [%default]")
	parser.add_option("--build-rivet-manual", default=False, action="store_true",
	dest="BUILD_RIVET_MANUAL", help="Try to build the Rivet PDF manual (requires LaTeX) [%default]")
	parser.add_option("--build-unvalidated", default=False, action="store_true",
	dest="BUILD_UNVALIDATED", help="Build the unvalidated collection of Rivet analyses [%default]")
	parser.add_option("--install-agile", action="store_true", default=False, dest="INSTALL_AGILE",
	help="Install the AGILe interface system for Fortran generators [install=%default]")
	parser.add_option("--agile-version", default="1.4.0", dest="AGILE_VERSION",
	help="Explicitly specify version of AGILe to get and use [%default]")
	parser.add_option("--agile-url", default="http://www.hepforge.org/archive/agile/",
	dest="AGILE_URL", help="Base URL for AGILe tarball downloads [%default]")
	parser.add_option("--hepmc-version", default="2.06.05", dest="HEPMC_VERSION",
	help="Explicitly specify version of HepMC to get and use [%default]")
	parser.add_option("--hepmc-url", default="http://lcgapp.cern.ch/project/simu/HepMC/download/",
	dest="HEPMC_URL", help="Base URL for HepMC tarball downloads [%default]")
	parser.add_option("--fastjet-version", default="3.0.2", dest="FASTJET_VERSION",
	help="Explicitly specify version of FastJet to get and use [%default]")
	parser.add_option("--fastjet-url", default="http://www.fastjet.fr/repo/",
	dest="FASTJET_URL", help="Base URL for FastJet tarball downloads [%default]")
	parser.add_option("--gsl-version", default="1.10", dest="GSL_VERSION",
	help="Version of GSL to be used from LCG if AFS is available and used [%default]")
	parser.add_option("--with-gsl", metavar="DIR", default=None, dest="GSL_DIR",
	help="Explicit path to find GSL -- overrides --gsl-version [%default]")
	parser.add_option("--with-boost", metavar="DIR", default=None, dest="BOOST_DIR",
	help="Explicit path to find Boost [%default]")
	parser.add_option("--install-boost", action="store_true", default=False, dest="INSTALL_BOOST",
	help="Don't use a system copy of Boost (NB. it takes a long time to build) [%default]")
	parser.add_option("--boost-version", default="1.44.0", dest="BOOST_VERSION",
	help="Explicitly specify version of Boost to use from LCG (or to get if --install-boost is used) [%default]")
	parser.add_option("-v", "--verbose", action="store_const", const=logging.DEBUG, dest="LOGLEVEL",
	default=logging.INFO, help="print debug (very verbose) messages")
	parser.add_option("-q", "--quiet", action="store_const", const=logging.WARNING, dest="LOGLEVEL",
	default=logging.INFO, help="be very quiet")
	opts, args = parser.parse_args()


	## Configure logging
	try:
	logging.basicConfig(level=opts.LOGLEVEL, format="%(message)s")
	except:
	pass
	h = logging.StreamHandler()
	h.setFormatter(logging.Formatter("%(message)s"))
	logging.getLogger().setLevel(opts.LOGLEVEL)
	if logging.getLogger().handlers:
	logging.getLogger().handlers[0] = h
	else:
	logging.getLogger().addHandler(h)


	## Build location
	ROOTDIR = os.path.abspath(os.getcwd())


	## Build location
	DLDIR = os.path.abspath(os.path.join(ROOTDIR, "downloads"))
	if not os.path.exists(DLDIR):
	os.makedirs(DLDIR)
	if not os.access(DLDIR, os.W_OK):
	logging.error("Can't write to downloads directory, %s... exiting" % DLDIR)

	## Build location
	BUILDDIR = os.path.abspath(os.path.join(ROOTDIR, "build"))
	if not os.path.exists(BUILDDIR):
	os.makedirs(BUILDDIR)
	if not os.access(BUILDDIR, os.W_OK):
	logging.error("Can't write to build directory, %s... exiting" % BUILDDIR)

	## Install to the PREFIX location
	PREFIX = os.path.abspath(opts.PREFIX)
	if not os.path.exists(PREFIX):
	os.makedirs(PREFIX)
	if not os.access(PREFIX, os.W_OK):
	logging.error("Can't write to installation directory, %s... exiting" % PREFIX)
	INCDIR = os.path.join(PREFIX, "include")
	if not os.path.exists(INCDIR):
	os.makedirs(INCDIR)
	LIBDIR = os.path.join(PREFIX, "lib")
	if not os.path.exists(LIBDIR):
	os.makedirs(LIBDIR)


	###########################


	## Function to grab a tarball from the Web
	def get_tarball(url, outname=None):
	if not outname:
	import urlparse
	outname = os.path.basename(urlparse.urlparse(url)[2])
	outpath = os.path.join(DLDIR, outname)
	if os.path.exists(outpath):
	if not opts.FORCE:
	logging.info("Not overwriting tarball at %s" % outpath)
	return outpath
	else:
	logging.info("Overwriting tarball at %s" % outpath)
	os.remove(outpath)
	import urllib2
	hreq = None
	out = None
	try:
	logging.info("Downloading %s" % url)
	hreq = urllib2.urlopen(url)
	out = open(outpath, "w")
	out.write(hreq.read())
	out.close()
	hreq.close()
	return outpath
	except urllib2.URLError:
	logging.error("Problem downloading tarball from %s" % url)
	if hreq:
	hreq.close()
	except IOError:
	logging.error("Problem while writing tarball to %s" % outpath)
	if out:
	out.close()
	if hreq:
	hreq.close()
	return None


	## Function to unpack a tarball
	def unpack_tarball(path):
	import tarfile
	tar = tarfile.open(path)
	try:
	for i in tar.getnames():
	if not os.path.exists(os.path.join(BUILDDIR, i)):
	tar.extract(i, path=BUILDDIR)
	except:
	return False
	tar.close()
	return True


	## Convenience function to get and unpack the tarball
	def get_unpack_tarball(tarurl, outname=None):
	outfile = get_tarball(tarurl, outname)
	unpack_tarball(outfile) or sys.exit(1)
	return True


	## Function to enter an expanded tarball and run the usual
	## autotools ./configure, make, make install mantra
	def conf_mk_mkinst(d, extraopts=""):
	prevdir = os.getcwd()
	if os.access(d, os.W_OK):
	os.chdir(d)
	confcmd = "./configure --prefix=%s %s" % (PREFIX, extraopts)
	logging.info("Configuring in %s: %s" % (os.getcwd(), confcmd))
	st, op = commands.getstatusoutput(confcmd)
	if st != 0:
	logging.error(op)
	sys.exit(1)
	logging.debug("Configure output:\n" + op)
	buildcmd = "make -j%s && make -j%s install" % (opts.JMAKE, opts.JMAKE)
	logging.info("Building in %s: %s" % (os.getcwd(), buildcmd))
	st, op = commands.getstatusoutput(buildcmd)
	if st != 0:
	logging.error(op)
	sys.exit(1)
	logging.debug("Build output:\n" + op)
	os.chdir(prevdir)
	else:
	logging.error("Couldn't find $1... exiting")
	sys.exit(1)


	DEVTOOLS_OK = False
	def check_devtools():
	global DEVTOOLS_OK
	if not DEVTOOLS_OK:
	logging.info("Checking for developer mode programs")
	path = []
	if os.environ.has_key("PATH"):
	path = os.environ["PATH"].split(":")
	if os.environ.has_key("path"):
	path = os.environ["path"].split(":")
	for pkg in ["svn", "autoconf", "autoreconf", "automake", "libtool", "swig"]:
	found = False
	for d in path:
	if os.access(os.path.join(d, pkg), os.X_OK):
	found = True
	break
	if not found:
	logging.error("You must have %s installed to bootstrap in developer mode" % pkg)
	return False
	DEVTOOLS_OK = True
	return True


	def pkg_bootstrap_svn(svnurl, pkgname, displayname=None):
	st = check_devtools()
	if not st:
	return False
	#
	if displayname is None:
	displayname = pkgname
	os.chdir(BUILDDIR)
	if not os.path.exists(pkgname):
	logging.info("Checking out %s from SVN head" % displayname)
	st, op = commands.getstatusoutput("svn co %s %s" % (svnurl, pkgname))
	if st != 0:
	logging.error(op)
	return False
	logging.debug("SVN checkout output:\n" + op)
	elif not os.path.exists(os.path.join(pkgname, ".svn")):
	logging.error("Non-SVN '%s' directory already exists, blocking SVN checkout" % pkgname)
	return False
	os.chdir(pkgname)
	logging.info("Updating %s SVN working copy" % displayname)
	st, op = commands.getstatusoutput("svn update")
	if st != 0:
	logging.error(op)
	return False
	logging.debug("SVN update output:\n" + op)
	if not os.path.exists("configure"):
	logging.info("Bootstrapping autoconf files")
	st, op = commands.getstatusoutput("autoreconf -i")
	if st != 0:
	logging.error(op)
	return False
	logging.debug("autoreconf output:\n" + op)
	os.chdir(BUILDDIR)
	return True



	try:

	## Get Rivet
	if opts.INSTALL_RIVET:
	rivetname = "rivet"
	os.chdir(BUILDDIR)
	if os.path.islink(rivetname):
	os.remove(rivetname)
	if not opts.DEV_MODE:
	import urlparse
	RIVET_NAME = "Rivet-" + opts.RIVET_VERSION
	RIVET_URL = urlparse.urljoin(opts.RIVET_URL, "%s.tar.gz" % RIVET_NAME)
	logging.info("Getting %s" % RIVET_URL)
	get_unpack_tarball(RIVET_URL)
	os.chdir(BUILDDIR)
	if not os.path.exists(rivetname):
	os.symlink(RIVET_NAME, rivetname)
	else:
	if not os.path.islink(rivetname):
	logging.warn("A '%s' directory already exists in %s, but is not a symlink to an expanded tarball" % (rivetname, BUILDDIR))
	sys.exit(1)
	else:
	pkg_bootstrap_svn("http://rivet.hepforge.org/svn/trunk", rivetname, "Rivet") or sys.exit(2)


	## Get AGILe
	if opts.INSTALL_AGILE:
	agilename = "agile"
	os.chdir(BUILDDIR)
	if os.path.islink(agilename):
	os.remove(agilename)
	if not opts.DEV_MODE:
	import urlparse
	AGILE_NAME = "AGILe-" + opts.AGILE_VERSION
	AGILE_URL = urlparse.urljoin(opts.AGILE_URL, "%s.tar.gz" % AGILE_NAME)
	logging.info("Getting %s" % AGILE_URL)
	get_unpack_tarball(AGILE_URL) or sys.exit(2)
	os.chdir(BUILDDIR)
	if not os.path.exists(agilename):
	os.symlink(AGILE_NAME, agilename)
	else:
	if not os.path.islink(agilename):
	logging.warn("A '%s' directory already exists in %s, but is not a symlink to an expanded tarball" % (agilename, BUILDDIR))
	sys.exit(1)
	else:
	pkg_bootstrap_svn("http://agile.hepforge.org/svn/trunk", agilename, "AGILe") or sys.exit(2)


	## Get Boost
	BOOSTFLAGS = None
	if opts.INSTALL_BOOST:
	logging.info("Installing a local copy of Boost")
	boostname = "boost_%s" % opts.BOOST_VERSION.replace(".", "_")
	boosttarname = boostname + ".tar.gz"
	boosturl = "http://downloads.sourceforge.net/boost/%s?use_mirror=mesh" % boosttarname
	get_unpack_tarball(boosturl)
	boostbuilddir = os.path.join(BUILDDIR, boostname)
	## Don't do a full install --- just copy the headers into place
	## (the build system changes between versions, and usually cocks up the dir structure)
	import shutil
	boostincdir = os.path.join(INCDIR, "boost")
	if not os.path.exists(boostincdir):
	shutil.copytree(os.path.join(boostbuilddir, "boost"), boostincdir)
	else:
	logging.warning("Boost header directory %s already exists... exiting" % boostincdir)
	sys.exit(2)
	logging.debug("Setting BOOST_DIR = " + PREFIX)
	opts.BOOST_DIR = PREFIX


	## Are we able to use pre-built packages from CERN AFS?
	if not opts.IGNORE_LCG and os.path.isdir(opts.LCGDIR):
	logging.info("LCG area available: using LCG-built packages")

	logging.info("Using LCG platform tag = " + opts.LCGTAG)

	## Now work out paths to give to Rivet
	## HepMC
	HEPMCPATH = os.path.join(opts.LCGDIR, "HepMC", opts.HEPMC_VERSION, opts.LCGTAG)
	if not os.path.exists(HEPMCPATH):
	logging.error("HepMC does not exist at path %s. You may wish to use the --ignore-lcgext option" % HEPMCPATH)
	sys.exit(1)
	## FastJet
	FASTJETPATH = os.path.join(opts.LCGDIR, "fastjet", opts.FASTJET_VERSION, opts.LCGTAG)
	if not os.path.exists(FASTJETPATH):
	logging.error("FastJet does not exist at path %s. You may wish to use the --ignore-lcgext option" % FASTJETPATH)
	sys.exit(1)
	## Boost
	if not opts.INSTALL_BOOST:
	lcg_boost_version = opts.BOOST_VERSION + "_python2.6"
	opts.BOOST_DIR = os.path.join(opts.LCGDIR, "Boost", lcg_boost_version, opts.LCGTAG)
	## GSL
	if not opts.GSL_DIR:
	opts.GSL_DIR = os.path.join(opts.LCGDIR, "GSL", opts.GSL_VERSION, opts.LCGTAG)

	## Automatically set up a nice SWIG version from LCG if available
	swigbin = os.path.join(opts.LCGDIR, "swig", "1.3.40", opts.LCGTAG, "bin")
	if os.access(swigbin, os.R_OK) and os.access(os.path.join(swigbin, "swig"), os.X_OK):
	## TODO: Check if this is exported to the builds
	os.environ["PATH"] = os.environ["PATH"] + ":" + swigbin


	else:
	## We don't have access to LCG AFS, or are ignoring it, so we download the packages...

	## Get and build HepMC
	hepmcname = "HepMC-" + opts.HEPMC_VERSION
	os.chdir(BUILDDIR)
	if not os.path.exists(hepmcname):
	hepmctarname = hepmcname + ".tar.gz"
	hepmcurl = os.path.join(opts.HEPMC_URL, hepmctarname)
	get_unpack_tarball(hepmcurl)
	conf_mk_mkinst(os.path.join(BUILDDIR, hepmcname), "--with-momentum=GEV --with-length=MM")
	HEPMCPATH = PREFIX

	## Get and build FastJet
	fastjetname = "fastjet-" + opts.FASTJET_VERSION
	os.chdir(BUILDDIR)
	if not os.path.exists(fastjetname):
	fastjettarname = fastjetname + ".tar.gz"
	fastjeturl = os.path.join(opts.FASTJET_URL, fastjettarname)
	get_unpack_tarball(fastjeturl)
	conf_mk_mkinst(os.path.join(BUILDDIR, fastjetname), "--enable-shared --enable-allcxxplugins")
	FASTJETPATH = PREFIX


	## This wouldn't be needed if Boost followed normal installation conventions...
	if opts.BOOST_DIR:
	logging.debug("Working out if Boost's headers are installed properly in " + opts.BOOST_DIR)
	boostincdir = os.path.join(opts.BOOST_DIR, "include")
	if not os.path.exists(os.path.join(boostincdir, "boost")):
	logging.debug("Boost's headers are not installed properly in " + opts.BOOST_DIR)
	incdirs = [d for d in os.listdir(boostincdir) if d.startswith("boost-")]
	if len(incdirs) > 0:
	BOOSTFLAGS = "--with-boost-incpath=%s" % os.path.join(boostincdir, incdirs[0])
	else:
	logging.error("Couldn't work out location of Boost headers in %s" % boostincdir)
	sys.exit(1)


	## Get build flags for Rivet and AGILe
	RA_CONFIGURE_FLAGS = ""
	## LCG tag
	RA_CONFIGURE_FLAGS += " --with-lcgtag=%s" % opts.LCGTAG
	## HepMC
	logging.debug("HepMC path: " + HEPMCPATH)
	RA_CONFIGURE_FLAGS += " --with-hepmc=%s" % HEPMCPATH
	## Boost
	if opts.BOOST_DIR:
	logging.debug("Boost path: " + opts.BOOST_DIR)
	RA_CONFIGURE_FLAGS += " --with-boost=%s" % opts.BOOST_DIR
	## In case the Boost headers are not in the standard structure, also try this:
	if BOOSTFLAGS:
	logging.debug("Boost flags: " + BOOSTFLAGS)
	RA_CONFIGURE_FLAGS += " " + BOOSTFLAGS
	AGILE_CONFIGURE_FLAGS = RA_CONFIGURE_FLAGS
	RIVET_CONFIGURE_FLAGS = RA_CONFIGURE_FLAGS


	## Build and install Rivet
	if opts.INSTALL_RIVET:
	logging.debug("FastJet path: " + FASTJETPATH)
	RIVET_CONFIGURE_FLAGS += " --with-fastjet=%s" % FASTJETPATH
	if not opts.BUILD_RIVET_MANUAL:
	RIVET_CONFIGURE_FLAGS += " --disable-pdfmanual"
	if opts.BUILD_UNVALIDATED:
	RIVET_CONFIGURE_FLAGS += " --enable-unvalidated"
	if opts.GSL_DIR:
	logging.debug("Using GSL path: " + opts.GSL_DIR)
	RIVET_CONFIGURE_FLAGS += " --with-gsl=%s" % opts.GSL_DIR
	## TODO: Remove for Rivet >= 1.3.0
	if not opts.DEV_MODE:
	RIVET_CONFIGURE_FLAGS += " --with-gslcblas=%s" % opts.GSL_DIR
	conf_mk_mkinst(os.path.join(BUILDDIR, "rivet"), RIVET_CONFIGURE_FLAGS)


	## Build and install AGILe
	if opts.INSTALL_AGILE:
	conf_mk_mkinst(os.path.join(BUILDDIR, agilename), AGILE_CONFIGURE_FLAGS)


	## Copy in the environment variable sourcing scripts
	envpaths = []
	if opts.INSTALL_RIVET:
	envpaths += [os.path.join(BUILDDIR, "rivet", "rivetenv.sh"), os.path.join(BUILDDIR, "rivet", "rivetenv.csh")]
	if opts.INSTALL_AGILE:
	envpaths += [os.path.join(BUILDDIR, "agile", "agileenv.sh"), os.path.join(BUILDDIR, "agile", "agileenv.csh")]
	os.chdir(ROOTDIR)
	for ep in envpaths:
	if os.path.exists(ep):
	shutil.copy(ep, ".")


	## Tell the user
	print
	logging.info("All done. Now set some variables in your shell by sourcing, for bash shell:\n")
	if opts.INSTALL_RIVET:
	logging.info("source rivetenv.sh")
	if opts.INSTALL_AGILE:
	logging.info("source agileenv.sh")
	logging.info("\nor for csh shell:\n")
	if opts.INSTALL_RIVET:
	logging.info("source rivetenv.csh")
	if opts.INSTALL_AGILE:
	logging.info("source agileenv.csh")

	except Exception, e:
	import traceback
	traceback.print_exc()
	logging.error("\n\n")
	logging.error("An error has occurred while bootstrapping Rivet or one of its dependencies. Sorry!")
	logging.error("Please contact the Rivet developers at rivet@projects.hepforge.org, with a \
	description of your problem, a copy of this script and any error trace that may have appeared \
	and we'll try to get it fixed as soon as possible. Thanks for your help!")

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