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zephyr-env.sh: Fixed sourcing the project environment file

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In zsh the value of $0 depends on the FUNCTION_ARGZERO option
which is set by default. FUNCTION_ARGZERO, when it is set, sets
$0 temporarily to the name of the function/script when executing
a shell function or sourcing a script. POSIX_ARGZERO option,
when it is set, exposes the original value of $0 in spite of the
current FUNCTION_ARGZERO setting.

This patch allows to source the project environment file from
both zsh and bash. It also removes the -z option from the
basename command which is missing in OS X.

Change-Id: I5a32404784d9064bf749fa58b4d73d4b56c908c2
Signed-off-by: Yannis Damigos <giannis.damigos@gmail.com>
This commit is contained in:
Yannis Damigos 2016-03-01 12:31:29 +02:00 • committed by Gerrit Code Review
commit 3e3e297719
1 changed files with 18 additions and 1 deletions
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19
zephyr-env.sh
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@ -14,7 +14,24 @@
# limitations under the License. # limitations under the License.
# #
if [ "X$(basename -z -- "$0")" "==" "Xzephyr-env.sh" ]; then # In zsh the value of $0 depends on the FUNCTION_ARGZERO option which is
# set by default. FUNCTION_ARGZERO, when it is set, sets $0 temporarily
# to the name of the function/script when executing a shell function or
# sourcing a script. POSIX_ARGZERO option, when it is set, exposes the
# original value of $0 in spite of the current FUNCTION_ARGZERO setting.
if [ -n "$ZSH_VERSION" ]; then
if [ $options[posixargzero] != "on" ]; then
setopt posixargzero
NAME=$(basename -- "$0")
setopt posixargzero
else
NAME=$(basename -- "$0")
fi
else
NAME=$(basename -- "$0")
fi
if [ "X$NAME" "==" "Xzephyr-env.sh" ]; then
echo "Source this file (do NOT execute it!) to set the Zephyr Kernel environment." echo "Source this file (do NOT execute it!) to set the Zephyr Kernel environment."
exit exit
fi fi