150 lines
6.2 KiB
Bash
150 lines
6.2 KiB
Bash
#!/bin/sh
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# shellcheck shell=sh
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#
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# Copyright (c) 2005-2021 Intel Corporation
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# Get absolute path to script. Gets a relative path as argument and outputs an absolute path.
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get_script_path() (
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script_path="$1"
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while [ -L "$script_path" ] ; do
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script_dir=$(command dirname -- "$script_path")
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script_dir=$(cd "$script_dir" && command pwd -P)
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script_path="$(readlink "$script_path")"
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case $script_path in
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(/*) ;;
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(*) script_path="$script_dir/$script_path" ;;
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esac
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done
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script_dir=$(command dirname -- "$script_path")
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script_dir=$(cd "$script_dir" && command pwd -P)
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printf "%s" "$script_dir"
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)
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_vars_get_proc_name() {
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if [ -n "${ZSH_VERSION:-}" ] ; then
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script="$(ps -p "$$" -o comm=)"
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else
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script="$1"
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while [ -L "$script" ] ; do
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script="$(readlink "$script")"
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done
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fi
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basename -- "$script"
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}
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_vars_this_script_name="vars.sh"
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if [ "$_vars_this_script_name" = "$(_vars_get_proc_name "$0")" ] ; then
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echo ":: ERROR: Incorrect usage: this script must be sourced."
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echo " Usage: . path/to/${_vars_this_script_name}"
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return 255 2>/dev/null || exit 255
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fi
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# Prepend path segment(s) to path-like env vars (PATH, CPATH, etc.).
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# prepend_path() avoids dangling ":" that affects some env vars (PATH and CPATH)
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# PATH > https://www.gnu.org/software/libc/manual/html_node/Standard-Environment.html
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# Usage:
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# env_var=$(prepend_path "$prepend_to_var" "$existing_env_var")
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# export env_var
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#
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# Inputs:
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# $1 == path segment to be prepended to $2
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# $2 == value of existing path-like environment variable
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prepend_path() (
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path_to_add="$1"
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path_is_now="$2"
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if [ "" = "${path_is_now}" ] ; then # avoid dangling ":"
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printf "%s" "${path_to_add}"
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else
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printf "%s" "${path_to_add}:${path_is_now}"
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fi
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)
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# Extract the name and location of this sourced script.
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# Generally, "ps -o comm=" is limited to a 15 character result, but it works
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# fine for this usage, because we are primarily interested in finding the name
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# of the execution shell, not the name of any calling script.
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vars_script_name=""
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vars_script_shell="$(ps -p "$$" -o comm=)"
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# ${var:-} needed to pass "set -eu" checks
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if [ -n "${ZSH_VERSION:-}" ] && [ -n "${ZSH_EVAL_CONTEXT:-}" ] ; then # zsh 5.x and later
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# shellcheck disable=2249
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case $ZSH_EVAL_CONTEXT in (*:file*) vars_script_name="${(%):-%x}" ;; esac ;
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elif [ -n "${KSH_VERSION:-}" ] ; then # ksh, mksh or lksh
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if [ "$(set | grep -Fq "KSH_VERSION=.sh.version" ; echo $?)" -eq 0 ] ; then # ksh
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vars_script_name="${.sh.file}" ;
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else # mksh or lksh or [lm]ksh masquerading as ksh or sh
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# force [lm]ksh to issue error msg; which contains this script's path/filename, e.g.:
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# mksh: /home/ubuntu/intel/oneapi/vars.sh[137]: ${.sh.file}: bad substitution
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vars_script_name="$( (echo "${.sh.file}") 2>&1 )" || : ;
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vars_script_name="$(expr "${vars_script_name:-}" : '^.*sh: \(.*\)\[[0-9]*\]:')" ;
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fi
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elif [ -n "${BASH_VERSION:-}" ] ; then # bash
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# shellcheck disable=2128
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(return 0 2>/dev/null) && vars_script_name="${BASH_SOURCE}" ;
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elif [ "dash" = "$vars_script_shell" ] ; then # dash
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# force dash to issue error msg; which contains this script's rel/path/filename, e.g.:
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# dash: 146: /home/ubuntu/intel/oneapi/vars.sh: Bad substitution
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vars_script_name="$( (echo "${.sh.file}") 2>&1 )" || : ;
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vars_script_name="$(expr "${vars_script_name:-}" : '^.*dash: [0-9]*: \(.*\):')" ;
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elif [ "sh" = "$vars_script_shell" ] ; then # could be dash masquerading as /bin/sh
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# force a shell error msg; which should contain this script's path/filename
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# sample error msg shown; assume this file is named "vars.sh"; as required by setvars.sh
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vars_script_name="$( (echo "${.sh.file}") 2>&1 )" || : ;
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if [ "$(printf "%s" "$vars_script_name" | grep -Eq "sh: [0-9]+: .*vars\.sh: " ; echo $?)" -eq 0 ] ; then # dash as sh
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# sh: 155: /home/ubuntu/intel/oneapi/vars.sh: Bad substitution
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vars_script_name="$(expr "${vars_script_name:-}" : '^.*sh: [0-9]*: \(.*\):')" ;
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fi
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else # unrecognized shell or dash being sourced from within a user's script
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# force a shell error msg; which should contain this script's path/filename
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# sample error msg shown; assume this file is named "vars.sh"; as required by setvars.sh
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vars_script_name="$( (echo "${.sh.file}") 2>&1 )" || : ;
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if [ "$(printf "%s" "$vars_script_name" | grep -Eq "^.+: [0-9]+: .*vars\.sh: " ; echo $?)" -eq 0 ] ; then # dash
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# .*: 164: intel/oneapi/vars.sh: Bad substitution
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vars_script_name="$(expr "${vars_script_name:-}" : '^.*: [0-9]*: \(.*\):')" ;
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else
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vars_script_name="" ;
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fi
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fi
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if [ "" = "$vars_script_name" ] ; then
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>&2 echo ":: ERROR: Unable to proceed: possible causes listed below."
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>&2 echo " This script must be sourced. Did you execute or source this script?" ;
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>&2 echo " Unrecognized/unsupported shell (supported: bash, zsh, ksh, m/lksh, dash)." ;
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>&2 echo " Can be caused by sourcing from ZSH version 4.x or older." ;
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return 255 2>/dev/null || exit 255
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fi
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TBBROOT=$(get_script_path "${vars_script_name:-}")/..
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LIBTBB_NAME="libtbb.dylib"
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if [ -e "$TBBROOT/lib/$LIBTBB_NAME" ]; then
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export TBBROOT
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LIBRARY_PATH=$(prepend_path "${TBBROOT}/lib" "${LIBRARY_PATH:-}") ; export LIBRARY_PATH
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DYLD_LIBRARY_PATH=$(prepend_path "${TBBROOT}/lib" "${DYLD_LIBRARY_PATH:-}") ; export DYLD_LIBRARY_PATH
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CPATH=$(prepend_path "${TBBROOT}/include" "${CPATH:-}") ; export CPATH
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CMAKE_PREFIX_PATH=$(prepend_path "${TBBROOT}" "${CMAKE_PREFIX_PATH:-}") ; export CMAKE_PREFIX_PATH
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PKG_CONFIG_PATH=$(prepend_path "${TBBROOT}/lib/pkgconfig" "${PKG_CONFIG_PATH:-}") ; export PKG_CONFIG_PATH
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else
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>&2 echo "ERROR: $LIBTBB_NAME library does not exist in $TBBROOT/lib."
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return 255 2>/dev/null || exit 255
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fi
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