zephyr-env.sh: Fixed sourcing the project environment file
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 $0 in spite of the
current FUNCTION_ARGZERO setting.
This patch allows to source the project environment file from
both zsh and bash. It also removes the -z option from the
basename command which is missing in OS X.
Change-Id: I5a32404784d9064bf749fa58b4d73d4b56c908c2
Signed-off-by: Yannis Damigos <giannis.damigos@gmail.com>
diff --git a/zephyr-env.sh b/zephyr-env.sh
index 40b20a5..3722f77 100644
--- a/zephyr-env.sh
+++ b/zephyr-env.sh
@@ -14,7 +14,24 @@
# limitations under the License.
#
-if [ "X$(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."
exit
fi
