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##############################################################################
# Copyright (c) 2013, Lawrence Livermore National Security, LLC.
# Produced at the Lawrence Livermore National Laboratory.
#
# This file is part of Spack.
# Written by Todd Gamblin, tgamblin@llnl.gov, All rights reserved.
# LLNL-CODE-647188
#
# For details, see https://scalability-llnl.github.io/spack
# Please also see the LICENSE file for our notice and the LGPL.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License (as published by
# the Free Software Foundation) version 2.1 dated February 1999.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the IMPLIED WARRANTY OF
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the terms and
# conditions of the GNU General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with this program; if not, write to the Free Software Foundation,
# Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
##############################################################################
"""
This file contains utilities to help with installing packages.
"""
from llnl.util.filesystem import join_path
class Prefix(str):
"""This class represents an installation prefix, but provides useful
attributes for referring to directories inside the prefix.
For example, you can do something like this::
prefix = Prefix('/usr')
print prefix.lib
print prefix.lib64
print prefix.bin
print prefix.share
print prefix.man4
This program would print:
/usr/lib
/usr/lib64
/usr/bin
/usr/share
/usr/share/man/man4
Prefix objects behave identically to strings. In fact, they
subclass str. So operators like + are legal:
print "foobar " + prefix
This prints 'foobar /usr". All of this is meant to make custom
installs easy.
"""
def __new__(cls, path):
s = super(Prefix, cls).__new__(cls, path)
s.bin = join_path(s, 'bin')
s.sbin = join_path(s, 'sbin')
s.etc = join_path(s, 'etc')
s.include = join_path(s, 'include')
s.lib = join_path(s, 'lib')
s.lib64 = join_path(s, 'lib64')
s.libexec = join_path(s, 'libexec')
s.share = join_path(s, 'share')
s.doc = join_path(s.share, 'doc')
s.info = join_path(s.share, 'info')
s.man = join_path(s.share, 'man')
s.man1 = join_path(s.man, 'man1')
s.man2 = join_path(s.man, 'man2')
s.man3 = join_path(s.man, 'man3')
s.man4 = join_path(s.man, 'man4')
s.man5 = join_path(s.man, 'man5')
s.man6 = join_path(s.man, 'man6')
s.man7 = join_path(s.man, 'man7')
s.man8 = join_path(s.man, 'man8')
return s
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