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package/environment-setup/environment-setup: add zsh

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environment-setup uses BASH_SOURCE which is bash specific. For other
shells, this variable is empty, leading to an error message and empty
SDK_PATH.
Zsh Uses $0. Unfortunately POSIX is not specifying how exactly $0
should behave when in sourced (or using special dot utility). So other
shell support have to be implemented in different manner.

Signed-off-by: Krzysztof Kanas <kkanas@fastmail.com>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
This commit is contained in:
Krzysztof Kanas 2021-09-02 13:28:50 +02:00 committed by Arnout Vandecappelle (Essensium/Mind)
parent 5ae9526b0c
commit 65cee90cc3
1 changed files with 7 additions and 1 deletions
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package/environment-setup/environment-setup
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@ -16,4 +16,10 @@ Some tips:
* To build CMake-based projects, use the "cmake" alias
EOF
SDK_PATH=$(dirname $(realpath "${BASH_SOURCE[0]}"))
if [ x"$BASH_VERSION" != x"" ] ; then
SDK_PATH=$(dirname $(realpath "${BASH_SOURCE[0]}"))
elif [ x"$ZSH_VERSION" != x"" ] ; then
SDK_PATH=$(dirname $(realpath $0))
else
echo "unsupported shell"
fi