support/apply-patches: re-instate set -e

As reported by Sébastien Szymanski [1], the apply-patches script
doesn't stop if a tar command can't extract an archive.

Use "set -e" to exit immediately if a command return an error.

Be sure to ignore any expected error: when we check if a patch to be
applied has the same basename as an already applied patch, the grep
would fail when no such patch was already applied. We should not fail
in this case.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Sébastien Szymanski <sebastien.szymanski@armadeus.com>
Cc: Romain Naour <romain.naour@openwide.fr>
Reviewed-by: Romain Naour <romain.naour@gmail.com>
Tested-by: Romain Naour <romain.naour@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

diff --git a/support/scripts/apply-patches.sh b/support/scripts/apply-patches.sh
index 694302d33e177ccb4bc638be0b48429a5dae351b..7ccb39dd8f7ed1a144dd2ac6bc988b0b98295a4f 100755 (executable)
--- a/support/scripts/apply-patches.sh
+++ b/support/scripts/apply-patches.sh
@@ -31,6 +31,8 @@
 # applied. The list of the patches applied is stored in '.applied_patches_list'
 # file in the build directory.
 
+set -e
+
 silent=
 if [ "$1" = "-s" ] ; then
     # add option to be used by the patch tool
@@ -103,7 +105,7 @@ function apply_patch {
         echo "Error: missing patch file ${path}/$patch"
         exit 1
     fi
-    existing="$(grep -E "/${patch}\$" ${builddir}/.applied_patches_list)"
+    existing="$(grep -E "/${patch}\$" ${builddir}/.applied_patches_list || true)"
     if [ -n "${existing}" ]; then
         echo "Error: duplicate filename '${patch}'"
         echo "Conflicting files are:"