Homec4science
Diffusion lammps (lammm-devel) Browse

lammps/lib/smd/Install.py
146aa4cdbdd3lammm-devel

Last Change
Raw File

Install.py
View Options

#!/usr/bin/env python
# Install.py tool to download, unpack, and point to the Eigen library
# used to automate the steps described in the README file in this dir
from __future__ import print_function
import sys,os,re,glob,subprocess
# help message
help = """
Syntax from src dir: make lib-smd args="-b"
or: make lib-smd args="-p /usr/include/eigen3"
Syntax from lib dir: python Install.py -b
or: python Install.py -p /usr/include/eigen3"
or: python Install.py -v 3.3.4 -b
specify one or more options, order does not matter
-b = download and unpack/configure the Eigen library
-p = specify folder holding an existing installation of Eigen
-v = set version of Eigen library to download and set up (default = 3.3.4)
Example:
make lib-smd args="-b" # download/build in default lib/smd/eigen-eigen-*
make lib-smd args="-p /usr/include/eigen3" # use existing Eigen installation in /usr/include/eigen3
"""
# settings
version = '3.3.4'
tarball = "eigen.tar.gz"
# print error message or help
def error(str=None):
if not str: print(help)
else: print("ERROR",str)
sys.exit()
# expand to full path name
# process leading '~' or relative path
def fullpath(path):
return os.path.abspath(os.path.expanduser(path))
def which(program):
def is_exe(fpath):
return os.path.isfile(fpath) and os.access(fpath, os.X_OK)
fpath, fname = os.path.split(program)
if fpath:
if is_exe(program):
return program
else:
for path in os.environ["PATH"].split(os.pathsep):
path = path.strip('"')
exe_file = os.path.join(path, program)
if is_exe(exe_file):
return exe_file
return None
def geturl(url,fname):
if which('curl') != None:
cmd = 'curl -L -o "%s" %s' % (fname,url)
elif which('wget') != None:
cmd = 'wget -O "%s" %s' % (fname,url)
else: error("cannot find 'wget' or 'curl' to download source code")
txt = subprocess.check_output(cmd,stderr=subprocess.STDOUT,shell=True)
return txt
# parse args
args = sys.argv[1:]
nargs = len(args)
if nargs == 0: error()
homepath = "."
homedir = "eigen3"
buildflag = False
pathflag = False
linkflag = True
iarg = 0
while iarg < nargs:
if args[iarg] == "-v":
if iarg+2 > nargs: error()
version = args[iarg+1]
iarg += 2
elif args[iarg] == "-p":
if iarg+2 > nargs: error()
eigenpath = fullpath(args[iarg+1])
pathflag = True
iarg += 2
elif args[iarg] == "-b":
buildflag = True
iarg += 1
else: error()
homepath = fullpath(homepath)
if (pathflag):
if not os.path.isdir(eigenpath): error("Eigen path does not exist")
if (buildflag and pathflag):
error("Cannot use -b and -p flag at the same time")
if (not buildflag and not pathflag):
error("Have to use either -b or -p flag")
# download and unpack Eigen tarball
# use glob to find name of dir it unpacks to
if buildflag:
print("Downloading Eigen ...")
url = "http://bitbucket.org/eigen/eigen/get/%s.tar.gz" % version
geturl(url,"%s/%s" % (homepath,tarball))
print("Unpacking Eigen tarball ...")
edir = glob.glob("%s/eigen-eigen-*" % homepath)
for one in edir:
if os.path.isdir(one):
subprocess.check_output('rm -rf "%s"' % one,stderr=subprocess.STDOUT,shell=True)
cmd = 'cd "%s"; tar -xzvf %s' % (homepath,tarball)
subprocess.check_output(cmd,stderr=subprocess.STDOUT,shell=True)
edir = glob.glob("%s/eigen-eigen-*" % homepath)
os.rename(edir[0],"%s/%s" % (homepath,homedir))
os.remove(tarball)
# create link in lib/smd to Eigen src dir
if linkflag:
print("Creating link to Eigen files")
if os.path.isfile("includelink") or os.path.islink("includelink"):
os.remove("includelink")
if pathflag: linkdir = eigenpath
else: linkdir = "%s/%s" % (homepath,homedir)
cmd = 'ln -s "%s" includelink' % linkdir
subprocess.check_output(cmd,stderr=subprocess.STDOUT,shell=True)
c4science · Help