added check for dockerHEADmain

1 files changed, 5 insertions, 0 deletions

diff --git a/build.sh b/build.sh
index 448347c..dac3ecf 100755
--- a/build.sh
+++ b/build.sh
@@ -1,6 +1,11 @@
 #!/bin/bash
 set -e
 
+if ! command -v docker; then
+    printf "%s\n" "[err] docker not found"
+    exit 1
+fi
+
 repo_name=$( basename -s .git $(git remote get-url origin) )
 
 docker run --rm -it -v $(pwd):/app -w /app mono:latest bash -c '