add pre-commit hook

docs/SETUP.md

@@ -111,3 +111,11 @@ To run the same checks that run in ci on your local, you can run
 ```sh
 deno run check
 ```
+
+## Pre Commit Hook
+
+If you want a pre commit hook that checks file naming, checks formatting, lints, and runs tests, there is a script in `hooks/pre-commit`. To install it, copy `hooks/pre-commit` to `.git/hooks`.
+
+```sh
+cp hooks/pre-commit .git/hooks
+```

hooks/pre-commit

@@ -0,0 +1,39 @@
+#!/bin/bash
+
+cd "$(dirname "$0")"
+cd ../..
+git ls-files | xargs --delimiter="\n" -L 1 basename >dirs.tmp
+grep --invert-match --line-regexp --perl-regexp "([a-z\(\)\[\]\.\_\-]*)|([A-Z_]*\.md)" dirs.tmp
+if [ $? == 0 ]; then
+	echo "invalid file name(s)"
+	exit 1
+fi
+rm dirs.tmp
+
+cd backend
+deno fmt
+if [ $? != 0 ]; then
+	exit 1
+fi
+deno lint
+if [ $? != 0 ]; then
+	exit 1
+fi
+deno test
+if [ $? != 0 ]; then
+	exit 1
+fi
+
+cd ../frontend
+npm run format
+if [ $? != 0 ]; then
+	exit 1
+fi
+npm run lint
+if [ $? != 0 ]; then
+	exit 1
+fi
+npm run test:ci
+if [ $? != 0 ]; then
+	exit 1
+fi