scripts: coccicheck: Improve error feedback when coccicheck fails

Currently, coccicheck fails with only the message "coccicheck failed"
and the error code for the failure. To obtain the error logs,
one needs to specify a debug file using the DEBUG_FILE option.

Modify coccicheck to display error logs when it crashes unless
DEBUG_FILE is set, in which case, the error logs are stored in
the specified debug file.

Signed-off-by: Sumera Priyadarsini <sylphrenadin@gmail.com>
Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr>

diff --git a/scripts/coccicheck b/scripts/coccicheck
index 6e37cf36caae716ddc265ec6fa6aeeb46a7e1a3d..85136f4fe97068fc5f953b3c9e26e492ee508c3c 100755 (executable)
--- a/scripts/coccicheck
+++ b/scripts/coccicheck
@@ -126,8 +126,14 @@ run_cmd_parmap() {
        if [ $VERBOSE -ne 0 ] ; then
                echo "Running ($NPROC in parallel): $@"
        fi
-       echo $@ >>$DEBUG_FILE
-       $@ 2>>$DEBUG_FILE
+       if [ "$DEBUG_FILE" != "/dev/null" -a "$DEBUG_FILE" != "" ]; then
+                echo $@>>$DEBUG_FILE
+                $@ 2>>$DEBUG_FILE
+        else
+                echo $@
+                $@ 2>&1
+       fi
+
        err=$?
        if [[ $err -ne 0 ]]; then
                echo "coccicheck failed"