Go：git gofmt pre-commit hook

這是一個建立於 的文章，其中的資訊可能已經有所發展或是發生改變。

我們使用 git 做 Go 源碼的版本控制，在提交前，我們需要對代碼自動格式，並且當未格式的時候，輸出一些資訊，下面是一個這樣的指令碼：

註：該指令碼來源於：http://golang.org/misc/git/pre-commit
關於介紹清理 Go 代碼的小文章：An Introduction to Go Tools and Clean Code

    #!/bin/sh        # Copyright 2012 The Go Authors. All rights reserved.        # Use of this source code is governed by a BSD-style        # license that can be found in the LICENSE file.        # git gofmt pre-commit hook        #        # To use, store as .git/hooks/pre-commit inside your repository and make sure        # it has execute permissions.        #        # This script does not handle file names that contain spaces.        gofiles=$(git diff --cached --name-only --diff-filter=ACM | grep '.go$')        [ -z "$gofiles" ] && exit 0        unformatted=$(gofmt -l $gofiles)        [ -z "$unformatted" ] && exit 0        # Some files are not gofmt'd. Print message and fail.        echo >&2 "Go files must be formatted with gofmt. Please run:"        for fn in $unformatted; do            echo >&2 "  gofmt -w $PWD/$fn"        done        exit 1