[OE-core] [PATCH 08/14] toolchain-shar-extract.sh: improve behaviour when xz is not installed

[Paul Eggleton]

Currently if xz isn't installed when installing the SDK you get an error
from tar and then the SDK installation continues, cascading into a load
of other failures since files are missing. Add a check to see if xz can
be run and error out if it can't, and also exit if tar fails.

Signed-off-by: Paul Eggleton <paul.eggleton at linux.intel.com>
---
 meta/files/toolchain-shar-extract.sh | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/meta/files/toolchain-shar-extract.sh b/meta/files/toolchain-shar-extract.sh
index b1ef4b7..d844771 100644
--- a/meta/files/toolchain-shar-extract.sh
+++ b/meta/files/toolchain-shar-extract.sh
@@ -29,6 +29,11 @@ if [ "$INST_ARCH" != "$SDK_ARCH" ]; then
 	fi
 fi
 
+if ! xz -V > /dev/null 2>&1; then
+	echo "Error: xz is required for installation of this SDK, please install it first"
+	exit 1
+fi
+
 DEFAULT_INSTALL_DIR="@SDKPATH@"
 SUDO_EXEC=""
 target_sdk_dir=""
@@ -168,7 +173,7 @@ fi
 payload_offset=$(($(grep -na -m1 "^MARKER:$" $0|cut -d':' -f1) + 1))
 
 printf "Extracting SDK..."
-tail -n +$payload_offset $0| $SUDO_EXEC tar xJ -C $target_sdk_dir --checkpoint=.2500
+tail -n +$payload_offset $0| $SUDO_EXEC tar xJ -C $target_sdk_dir --checkpoint=.2500 || exit 1
 echo "done"
 
 printf "Setting it up..."
-- 
2.5.0