1#!/usr/bin/env python 2 3""" 4Install.py tool to download, unpack, and point to the Eigen library 5used to automate the steps described in the README file in this dir 6""" 7 8from __future__ import print_function 9import sys, os, glob, shutil, tarfile 10from argparse import ArgumentParser 11 12sys.path.append('..') 13from install_helpers import fullpath, geturl, checkmd5sum 14 15parser = ArgumentParser(prog='Install.py', 16 description="LAMMPS library build wrapper script") 17 18# settings 19 20version = '3.3.9' 21tarball = "eigen.tar.gz" 22 23# known checksums for different Eigen versions. used to validate the download. 24checksums = { \ 25 '3.3.9' : '609286804b0f79be622ccf7f9ff2b660', \ 26 '3.3.7' : '9e30f67e8531477de4117506fe44669b' \ 27} 28 29 30# help message 31 32HELP = """ 33Syntax from src dir: make lib-smd args="-b" 34 or: make lib-smd args="-p /usr/include/eigen3" 35 36Syntax from lib dir: python Install.py -b 37 or: python Install.py -p /usr/include/eigen3" 38 or: python Install.py -v 3.3.7 -b 39 40Example: 41 42make lib-smd args="-b" # download/build in default lib/smd/eigen-eigen-* 43make lib-smd args="-p /usr/include/eigen3" # use existing Eigen installation in /usr/include/eigen3 44""" 45 46pgroup = parser.add_mutually_exclusive_group() 47pgroup.add_argument("-b", "--build", action="store_true", 48 help="download and build the Eigen3 library") 49pgroup.add_argument("-p", "--path", 50 help="specify folder of existing Eigen installation") 51parser.add_argument("-v", "--version", default=version, 52 help="set version of Eigen to download and build (default: %s)" % version) 53 54args = parser.parse_args() 55 56# print help message and exit, if neither build nor path options are given 57if not args.build and not args.path: 58 parser.print_help() 59 sys.exit(HELP) 60 61homepath = fullpath(".") 62eigenpath = os.path.join(homepath, "eigen3") 63 64buildflag = args.build 65pathflag = args.path is not None 66version = args.version 67 68if pathflag: 69 eigenpath = args.path 70 if not os.path.isdir(eigenpath): 71 sys.exit("Eigen path %s does not exist" % eigenpath) 72 eigenpath = fullpath(eigenpath) 73 74# download and unpack Eigen tarball 75# use glob to find name of dir it unpacks to 76 77if buildflag: 78 print("Downloading Eigen ...") 79 eigentar = os.path.join(homepath, tarball) 80 url = "https://gitlab.com/libeigen/eigen/-/archive/%s/eigen-%s.tar.gz" % (version,version) 81 geturl(url, eigentar) 82 83 # verify downloaded archive integrity via md5 checksum, if known. 84 if version in checksums: 85 print("checking version %s\n" % version) 86 if not checkmd5sum(checksums[version], eigentar): 87 sys.exit("Checksum for Eigen library does not match") 88 89 90 print("Cleaning up old folders ...") 91 edir = glob.glob(os.path.join(homepath, "eigen-*")) 92 edir.append(eigenpath) 93 for one in edir: 94 if os.path.isdir(one): 95 shutil.rmtree(one) 96 97 print("Unpacking Eigen tarball ...") 98 if tarfile.is_tarfile(eigentar): 99 tgz = tarfile.open(eigentar) 100 tgz.extractall(path=homepath) 101 os.remove(eigentar) 102 else: 103 sys.exit("File %s is not a supported archive" % eigentar) 104 edir = os.path.join(homepath, "eigen-%s" % version) 105 os.rename(edir, eigenpath) 106 107# create link in lib/smd to Eigen src dir 108 109print("Creating link to Eigen include folder") 110if os.path.isfile("includelink") or os.path.islink("includelink"): 111 os.remove("includelink") 112linkdir = eigenpath 113os.symlink(linkdir, 'includelink') 114