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-rwxr-xr-xbuild-all-with-docker6
1 files changed, 6 insertions, 0 deletions
diff --git a/build-all-with-docker b/build-all-with-docker
index fbc75020c..1aa62d026 100755
--- a/build-all-with-docker
+++ b/build-all-with-docker
@@ -2,6 +2,12 @@
cd "$(dirname "$(readlink -e "$0")")"
+exec 9> build-all-with-docker.lock
+if ! flock -n 9; then
+ >&2 echo 'another build-all-with-docker still holds the lock'
+ exit 1
+fi
+
if [ "x$1" = 'x--pull' ]; then
shift
if ! git pull --ff-only; then