Git pre-push钩子执行交互式脚本失败：出现"do" unexpected语法错误

我编写了一个交互式Git pre-push钩子，用于在推送代码前升级npm包版本，脚本内容如下：

#!/bin/bash

current_branch=$(git symbolic-ref HEAD | sed -e 's,.*/\(.*\),\1,')

echo "Pushing ${current_branch}"

current_version=$(npm run version -s)

echo "Current version: $current_version"

patch_version=$(npx semver $current_version -i patch)
minor_version=$(npx semver $current_version -i minor)
major_version=$(npx semver $current_version -i major)

# Choose the version bump type
PS3="Select the version bump type: "
select bump_type in "patch - Bump into ${patch_version}" "minor - Bump into ${minor_version}" "major - Bump into ${major_version}" "none - Keep Same"; do

  case $bump_type in
    "patch"*)
      # Increment version based on the chosen bump type
      new_version="patch"
      break
      ;;
    "minor"*)
        new_version="minor"
        break
        ;;
    "major"*)
        new_version="major"
        break
        ;;
    "none"*)
      echo "No version selected, skipping bump."
      exit 0
      ;;
    *)
      echo "Invalid selection, please choose a valid option."
      ;;
  esac
done

echo "Bumping version to $new_version"

# Update package.json with the new version
new_version=$(npm version ${new_version} --force --silent)

echo "Version bumped to $new_version"

echo "Keep package-lock.json up to spec"
npm install
git commit -m "AutoBump Version" package.json package-lock.json

但执行git push推送分支时，出现如下报错：

Pushing dev
Current version: 1.0.3
.husky/pre-push: 17: Syntax error: "do" unexpected
husky - pre-push script failed (code 2)
error: απέτυχε η δημοσίευση κάποιων ref στο 'github.com:ellakcy/fa-checkbox.git'

手动运行脚本却能正常工作：

bash .husky/pre-push 
Pushing dev
Current version: 1.0.3
1) patch - Bump into 1.0.4
2) minor - Bump into 1.1.0
3) major - Bump into 2.0.0
4) none - Keep Same
Select the version bump type: 

试过相关解决方案但未解决，求处理办法。

问题根源 #

报错核心原因是husky默认用sh而非bash执行钩子脚本，而脚本中使用的select...do是Bash专属语法，POSIX标准的sh不支持该特性，因此执行时触发语法错误。

解决方法 #

方法1：强制husky用Bash运行钩子

确保脚本以Bash执行：

• 确认脚本开头的#!/bin/bash未被修改，且文件拥有可执行权限（执行chmod +x .husky/pre-push）
• 或在项目根目录的.huskyrc/.huskyrc.js中指定shell：

  {
    "shell": "/bin/bash"
  }
  

方法2：替换select为兼容sh的交互逻辑

若不想依赖Bash，可改用read命令实现选择功能，替换原select代码块：

#!/bin/sh

# ... 保留前面的代码 ...

# 替换select部分为兼容sh的交互逻辑
echo "Select the version bump type:"
echo "1) patch - Bump into ${patch_version}"
echo "2) minor - Bump into ${minor_version}"
echo "3) major - Bump into ${major_version}"
echo "4) none - Keep Same"
echo -n "Enter your choice: "
read choice

case $choice in
  1)
    new_version="patch"
    ;;
  2)
    new_version="minor"
    ;;
  3)
    new_version="major"
    ;;
  4)
    echo "No version selected, skipping bump."
    exit 0
    ;;
  *)
    echo "Invalid selection, please choose a valid option."
    exit 1
    ;;
esac

# ... 保留后面的代码 ...

验证 #

修改后再次执行git push，即可正常触发交互式版本选择，不会再出现语法错误。

内容的提问来源于stack exchange，提问作者Dimitrios Desyllas