chore: Add pre-commit hook script

.golangci.yml

@@ -7,6 +7,14 @@ linters-settings:
     disabled-checks:
       - singleCaseSwitch
 
+issues:
+  exclude-rules:
+    - path: '(.+)_test\.go'
+      linters:
+        - gocognit
+        - gocyclo
+        - dupl
+
 linters:
   enable:
     - asciicheck

hack/pre-commit.sh

@@ -0,0 +1,32 @@
+#!/usr/bin/env bash
+
+#
+# Copyright 2022 The Furiko Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+set -euo pipefail
+
+## Sample pre-commit Git hook that will format, lint and test changes.
+## Reduce back-and-forth from fixing CI errors by running the CI locally.
+##
+## To enable this, run the following:
+##   ln -s `pwd`/hack/pre-commit.sh .git/hooks/pre-commit
+
+# Format the repo.
+make fmt
+
+# Run preflight checks.
+make lint
+make test