add pre-commit git hook (run lint)

run

@@ -1,16 +1,27 @@
 #!/bin/sh -e
 
-export RUN_BIN="$0"
-export RUN_DIR=$(dirname "$(realpath "$0")")
+RUN_BIN="$0"
+RUN_DIR=$(dirname "$(realpath "$0")")
 
-task=
-if [ -e "$RUN_DIR/scripts/$1" ]; then
+export RUN_BIN
+export RUN_DIR
+
+if [ "$(dirname "$0")" = ".git/hooks" ]; then
+    task=$(basename "$0")
+else
     task="$1"
-elif [ -e "$RUN_DIR/scripts/local/$1" ]; then
-    task="local/$1"
+    [ $# -gt 0 ] && shift
 fi
 
-[ -z "$task" ] && exit 1
+script=
+if [ -x "$RUN_DIR/scripts/local/$task" ]; then
+    script="local/$task"
+elif [ -x "$RUN_DIR/scripts/git-hooks/$task" ]; then
+    script="git-hooks/$task"
+elif [ -x "$RUN_DIR/scripts/$task" ]; then
+    script="$task"
+fi
 
-shift
-exec "$RUN_DIR/scripts/$task" "$@"
+[ -z "$script" ] && exit 1
+
+exec "$RUN_DIR/scripts/$script" "$@"

scripts/git-hooks/pre-commit

@@ -0,0 +1 @@
+../lint