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setup-env.sh: fix zsh compatibility error (#11153)

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Still look for BASH_SOURCE[0] first, but if it's not set,
_sp_source_file is initialized to an empty value addressing the
unset parameter error (line 217).
This commit is contained in:
paulanda 2019-04-16 13:33:02 -06:00 committed by Peter Scheibel
parent 9a79a2345d
commit 88cc895a70
1 changed files with 3 additions and 3 deletions
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6
share/spack/setup-env.sh
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@ -214,10 +214,10 @@ fi
# Figure out where this file is. Below code needs to be portable to
# bash and zsh.
#
_sp_source_file="${BASH_SOURCE[0]}" # Bash's location of last sourced file.
_sp_source_file="${BASH_SOURCE[0]:-}" # Bash's location of last sourced file.
if [ -z "$_sp_source_file" ]; then
_sp_source_file="$0:A" # zsh way to do it
if [[ "$_sp_source_file" == *":A" ]]; then
_sp_source_file="${(%):-%N}" # zsh way to do it
if [ -z "$_sp_source_file" ]; then
# Not zsh either... bail out with plain old $0,
# which WILL NOT work if this is sourced indirectly.
_sp_source_file="$0"