Add pre-commit hook to validate composer.json

scripts/pre-commit.sh

@@ -0,0 +1,14 @@
+#!/usr/bin/env bash
+
+list_of_files="${@}"
+for file in $list_of_files; do
+    if [[ "${file}" == "composer.json" ]]; then
+        $(which composer) validate
+        exit "${?}"
+    else
+        echo "unsupported file: ${file}"
+        exit 1
+    fi
+done
+
+exit 0