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-rwxr-xr-xscripts/create-pull-request8
1 files changed, 8 insertions, 0 deletions
diff --git a/scripts/create-pull-request b/scripts/create-pull-request
index 19ba58869f9..a3744cceaa3 100755
--- a/scripts/create-pull-request
+++ b/scripts/create-pull-request
@@ -185,6 +185,14 @@ fi
# Generate the patches and cover letter
git format-patch $extraopts -M40 --subject-prefix="$PREFIX" -n -o $ODIR --thread=shallow --cover-letter $RELATIVE_TO..$COMMIT_ID > /dev/null
+if [ -z "$(ls -A $ODIR 2> /dev/null)" ]; then
+ echo "ERROR: $ODIR is empty, no cover letter and patches was generated!"
+ echo " This is most likely due to that \$RRELATIVE_TO..\$COMMIT_ID"
+ echo " ($RELATIVE_TO..$COMMIT_ID) don't contain any differences."
+ rmdir $ODIR
+ exit 1
+fi
+
[ -n "$RELDIR" ] && cd $pdir
# Customize the cover letter