178 lines
6.6 KiB
Bash
Executable file
178 lines
6.6 KiB
Bash
Executable file
##############################################################################
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# Copyright (c) 2013, Lawrence Livermore National Security, LLC.
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# Produced at the Lawrence Livermore National Laboratory.
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#
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# This file is part of Spack.
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# Written by Todd Gamblin, tgamblin@llnl.gov, All rights reserved.
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# LLNL-CODE-647188
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#
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# For details, see https://github.com/llnl/spack
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# Please also see the LICENSE file for our notice and the LGPL.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License (as published by
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# the Free Software Foundation) version 2.1 dated February 1999.
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#
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# This program is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the IMPLIED WARRANTY OF
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the terms and
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# conditions of the GNU General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public License
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# along with this program; if not, write to the Free Software Foundation,
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# Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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##############################################################################
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#
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# This file is part of Spack and sets up the spack environment for
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# bash and zsh. This includes dotkit support, module support, and
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# it also puts spack in your path. Source it like this:
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#
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# . /path/to/spack/share/spack/setup-env.sh
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#
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########################################################################
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# This is a wrapper around the spack command that forwards calls to
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# 'spack use' and 'spack unuse' to shell functions. This in turn
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# allows them to be used to invoke dotkit functions.
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#
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# 'spack use' is smarter than just 'use' because it converts its
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# arguments into a unique spack spec that is then passed to dotkit
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# commands. This allows the user to use packages without knowing all
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# their installation details.
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#
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# e.g., rather than requring a full spec for libelf, the user can type:
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#
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# spack use libelf
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#
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# This will first find the available libelf dotkits and use a
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# matching one. If there are two versions of libelf, the user would
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# need to be more specific, e.g.:
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#
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# spack use libelf@0.8.13
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#
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# This is very similar to how regular spack commands work and it
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# avoids the need to come up with a user-friendly naming scheme for
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# spack dotfiles.
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########################################################################
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function spack {
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# save raw arguments into an array before butchering them
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args=( "$@" )
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# accumulate initial flags for main spack command
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_sp_flags=""
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while [[ "$1" =~ ^- ]]; do
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_sp_flags="$_sp_flags $1"
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shift
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done
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# h and V flags don't require further output parsing.
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if [[ (! -z "$_sp_flags") && ("$_sp_flags" =~ '.*h.*' || "$_sp_flags" =~ '.*V.*') ]]; then
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command spack $_sp_flags "$@"
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return
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fi
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_sp_subcommand=$1; shift
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_sp_spec="$@"
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# Filter out use and unuse. For any other commands, just run the
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# command.
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case $_sp_subcommand in
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"cd")
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_sp_arg="$1"; shift
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if [ "$_sp_arg" = "-h" ]; then
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command spack cd -h
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else
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cd $(spack location $_sp_arg "$@")
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fi
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return
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;;
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"use"|"unuse"|"load"|"unload")
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# Shift any other args for use off before parsing spec.
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_sp_module_args=""
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if [[ "$1" =~ ^- ]]; then
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_sp_module_args="$1"; shift
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_sp_spec="$@"
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fi
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# Here the user has run use or unuse with a spec. Find a matching
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# spec using 'spack module find', then use the appropriate module
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# tool's commands to add/remove the result from the environment.
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# If spack module command comes back with an error, do nothing.
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case $_sp_subcommand in
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"use")
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if _sp_full_spec=$(command spack $_sp_flags module find dotkit $_sp_spec); then
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use $_sp_module_args $_sp_full_spec
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fi ;;
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"unuse")
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if _sp_full_spec=$(command spack $_sp_flags module find dotkit $_sp_spec); then
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unuse $_sp_module_args $_sp_full_spec
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fi ;;
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"load")
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if _sp_full_spec=$(command spack $_sp_flags module find dotkit $_sp_spec); then
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module load $_sp_module_args $_sp_full_spec
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fi ;;
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"unload")
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if _sp_full_spec=$(command spack $_sp_flags module find dotkit $_sp_spec); then
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module unload $_sp_module_args $_sp_full_spec
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fi ;;
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esac
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;;
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*)
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command spack "${args[@]}"
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;;
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esac
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}
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########################################################################
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# Prepends directories to path, if they exist.
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# pathadd /path/to/dir # add to PATH
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# or pathadd OTHERPATH /path/to/dir # add to OTHERPATH
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########################################################################
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function _spack_pathadd {
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# If no variable name is supplied, just append to PATH
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# otherwise append to that variable.
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_pa_varname=PATH
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_pa_new_path="$1"
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if [ -n "$2" ]; then
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_pa_varname="$1"
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_pa_new_path="$2"
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fi
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# Do the actual prepending here.
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eval "_pa_oldvalue=\${${_pa_varname}:-}"
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if [ -d "$_pa_new_path" ] && [[ ":$_pa_oldvalue:" != *":$_pa_new_path:"* ]]; then
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if [ -n "$_pa_oldvalue" ]; then
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eval "export $_pa_varname=\"$_pa_new_path:$_pa_oldvalue\""
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else
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export $_pa_varname="$_pa_new_path"
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fi
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fi
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}
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#
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# Figure out where this file is. Below code needs to be portable to
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# bash and zsh.
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#
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_sp_source_file="${BASH_SOURCE[0]}" # Bash's location of last sourced file.
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if [ -z "$_sp_source_file" ]; then
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_sp_source_file="$0:A" # zsh way to do it
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if [[ "$_sp_source_file" == *":A" ]]; then
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# Not zsh either... bail out with plain old $0,
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# which WILL NOT work if this is sourced indirectly.
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_sp_source_file="$0"
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fi
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fi
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#
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# Set up modules and dotkit search paths in the user environment
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#
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_sp_share_dir=$(cd "$(dirname $_sp_source_file)" && pwd)
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_sp_prefix=$(cd "$(dirname $(dirname $_sp_share_dir))" && pwd)
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_spack_pathadd PATH "${_sp_prefix%/}/bin"
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_sp_sys_type=$(spack-python -c 'print(spack.architecture.sys_type())')
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_spack_pathadd DK_NODE "${_sp_share_dir%/}/dotkit/$_sp_sys_type"
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_spack_pathadd MODULEPATH "${_sp_share_dir%/}/modules/$_sp_sys_type"
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