pre-commit

#!/bin/sh

exit_code=0

goimports_fix() {
    hash goimports 2>&- || { echo >&2 "goimports not in PATH."; exit 1; }

    for file in `git diff --cached --name-only --diff-filter=d | grep -v vendor | grep '\.go$'`
    do
        if [[ ! -z `git diff --name-only ${file} | grep '\.go$'` ]]
        then
            # goimports check staged file which has unstaged changes
            ERROR=$(git cat-file -p :${file} | goimports -l ${file} 2>&1 >/dev/null)
            if [[ ! -z ${ERROR} ]]
            then
                echo goimports ${file} meet error:
                echo ${ERROR}
                exit_code=1
            else
                if [[ ! -z `git cat-file -p :${file} | goimports -l 2>/dev/null` ]]
                then
                    echo ${file} should be goimports, please check and fix it and stage changes
                    exit_code=1
                fi
            fi
        else
            # goimports check and fix file which dose not have unstaged changes
            ERROR=$(goimports -l ${file} 2>&1 >/dev/null)
            if [[ ! -z ${ERROR} ]]
            then
                echo goimports ${file} meet error:
                echo ${ERROR}
                exit_code=1
            else
                if [[ ! -z `goimports -l ${file} 2>/dev/null` ]]
                then
                    `goimports -w ${file}`
                    echo ${file} goimports auto fixed, please stage the changes
                    exit_code=1
                fi
            fi
        fi
    done
}

goimports_fix

if [[ ${exit_code} == 1 ]]; then
    echo "\ncommit stopped, check the above log, fix, add, recommit"
fi

exit ${exit_code}

在 commit 之前对修改过的 go 文件执行 goimports，如果会有改动就会报错并停止 commit，同时如果没有未 stage 的改动会直接用 goimports 修改文件。

# 下载 pre-commit hook
cd ~/.gittemplates/hooks/
curl https://gist.githubusercontent.com/binderclip/5bd466d5dd0519c3e0d5dfdbc0cc84e6/raw/pre-commit -O
chmod 755 pre-commit

# 新项目创建的时候会自动复制过去

# 旧项目可以手动拷贝过去
cd YOUR_GO_PROJECT_PATH
cp ~/.gittemplates/hooks/* .git/hooks/

refs

• How to make git-diff and git log ignore new and deleted files? - Stack Overflow