Allow chaining pre-existing .git/hooks after Husky

husky

@@ -2,6 +2,7 @@
 [ "$HUSKY" = "2" ] && set -x
 n=$(basename "$0")
 s=$(dirname "$(dirname "$0")")/$n
+h="$(git rev-parse --git-dir)/hooks/$n"
 
 [ ! -f "$s" ] && exit 0
 
@@ -19,4 +20,13 @@ c=$?
 
 [ $c != 0 ] && echo "husky - $n script failed (code $c)"
 [ $c = 127 ] && echo "husky - command not found in PATH=$PATH"
-exit $c
+[ $c != 0 ] && exit $c
+
+if [ -x "$h" ]; then
+	"$h" "$@"
+	c=$?
+	[ $c != 0 ] && echo "husky - $h hook failed (code $c)"
+	[ $c != 0 ] && exit $c
+fi
+
+exit 0

test/13_chain_git_hooks.sh

@@ -0,0 +1,24 @@
+#!/bin/sh
+. test/functions.sh
+setup
+install
+
+npx --no-install husky
+
+# Create a custom .git/hooks/pre-commit
+mkdir -p .git/hooks
+cat > .git/hooks/pre-commit << 'EOF'
+#!/bin/sh
+echo "custom git hook executed"
+exit 0
+EOF
+chmod +x .git/hooks/pre-commit
+
+# Should execute both husky and original Git hook
+git add package.json
+echo "echo \"husky hook executed\"" > .husky/pre-commit
+output=$(git commit -m "test" 2>&1)
+echo "$output" | grep -q "husky hook executed" || error "husky hook should run"
+echo "$output" | grep -q "custom git hook executed" || error "custom .git/hooks/pre-commit should run"
+
+rm .git/hooks/pre-commit