该脚本实现批量删除指定日期内久未删除的分支：

快捷使用

./git-cleanup.sh -d 90(天数)

自定义保护分支列表

1. 创建保护分支列表文件：

   echo -e "production\nlegacy-system" > ~/.git_cleanup_protected

2. 指定自定义配置文件：

   ./git-cleanup.sh -c ./project_protected_branches.cfg -d 60

3. 配置文件格式说明：

   • 每行一个分支名称
   • 支持行末注释（以 # 开头的内容）
   • 自动忽略空行和空格

4. 查看当前保护分支列表

   # 使用示例
   $ ./git-cleanup.sh -l
   当前受保护分支列表：
   ----------------------------------------
   分支名称                 来源
   ----------------------------------------
   production              [配置文件] /home/user/.git_cleanup_protected
   main                    [系统默认]
   master                  [系统默认]
   develop                 [系统默认]
   ----------------------------------------
   （配置文件路径: /home/user/.git_cleanup_protected）

脚本内容

git-cleanup.sh:

#!/bin/bash

# 默认配置
DEFAULT_PROTECTED=("master" "main" "develop")  # 默认受保护分支
CONFIG_FILE="${HOME}/.git_cleanup_protected"   # 默认配置文件路径
remote="origin"                                # 远程仓库名称
delete_local=true                              # 是否删除本地分支
days_threshold=30                              # 默认过期天数阈值

# 加载配置文件
declare -a protected_branches=()
load_protected_branches() {
    # 清空数组重新加载
    protected_branches=()

    # 读取配置文件
    if [ -f "$CONFIG_FILE" ]; then
        while IFS= read -r line; do
            line=${line%%#*}      # 去除行末注释
            line=${line//$'\r'/}  # 处理Windows换行符
            line=${line// /}      # 去除空格

            [[ -n "$line" ]] && protected_branches+=("$line")
        done < "$CONFIG_FILE"
    fi

    # 合并默认保护分支（去重）
    for branch in "${DEFAULT_PROTECTED[@]}"; do
        if [[ ! " ${protected_branches[@]} " =~ " $branch " ]]; then
            protected_branches+=("$branch")
        fi
    done
}

# 列出保护分支
list_protected_branches() {
    # 读取配置文件内容（不合并默认值）
    declare -a config_branches=()
    if [ -f "$CONFIG_FILE" ]; then
        while IFS= read -r line; do
            line=${line%%#*}
            line=${line// /}
            [[ -n "$line" ]] && config_branches+=("$line")
        done < "$CONFIG_FILE"
    fi

    echo "当前受保护分支列表："
    echo "----------------------------------------"
    printf "%-25s %s\n" "分支名称" "来源"
    echo "----------------------------------------"

    # 显示配置文件中的分支
    for branch in "${config_branches[@]}"; do
        printf "%-25s %s\n" "$branch" "[配置文件] $CONFIG_FILE"
    done

    # 显示未在配置文件中出现的默认分支
    for default_branch in "${DEFAULT_PROTECTED[@]}"; do
        if [[ ! " ${config_branches[@]} " =~ " $default_branch " ]]; then
            printf "%-25s %s\n" "$default_branch" "[系统默认]"
        fi
    done

    echo "----------------------------------------"
    echo "（配置文件路径: $CONFIG_FILE）"
    exit 0
}

# 解析命令行参数
while [[ $# -gt 0 ]]; do
    case $1 in
        -d|--days)
        days_threshold="$2"
        shift; shift ;;
        -c|--config)
        CONFIG_FILE="$2"
        shift; shift ;;
        -l|--list)
        list_protected_branches ;;
        -h|--help)
        echo "用法: $0 [选项]"
        echo "选项:"
        echo "  -d, --days N     设置过期天数阈值（默认：30）"
        echo "  -c, --config FILE指定配置文件路径（默认：${CONFIG_FILE}）"
        echo "  -l, --list       列出所有受保护分支"
        echo "  -h, --help       显示帮助信息"
        exit 0 ;;
        *)
        echo "未知选项: $1"; exit 1 ;;
    esac
done

# 验证天数参数
[[ "$days_threshold" =~ ^[0-9]+$ ]] || { echo "错误：天数参数必须为整数"; exit 1; }

# 加载保护分支列表
load_protected_branches

# 计算截止时间戳
cutoff=$(date -d "$days_threshold days ago" +%s)

# 获取分支信息（含创建者）
declare -a branches_info
while read ts branch; do
    branch_name=${branch#$remote/}

    # 跳过受保护分支
    [[ " ${protected_branches[@]} " =~ " $branch_name " ]] && continue

    # 获取分支创建者信息
    creator=$(git log --reverse --format="%an <%ae>" "$branch" -1 2>/dev/null || echo "未知")
    creator=${creator//|/-}  # 处理特殊字符

    # 存储分支信息：时间戳|分支名|创建者
    branches_info+=("$ts|$branch_name|${creator//$'\n'/}")
done < <(git fetch -pq && git for-each-ref --sort=committerdate \
         --format='%(committerdate:unix) %(refname:short)' \
         "refs/remotes/$remote")

# 筛选待删除分支
branches_to_delete=()
for entry in "${branches_info[@]}"; do
    IFS='|' read ts branch_name creator <<< "$entry"
    [ $ts -lt $cutoff ] && branches_to_delete+=("$branch_name|$creator")
done

# 显示结果
if [ ${#branches_to_delete[@]} -eq 0 ]; then
    echo "没有需要清理的分支（阈值：${days_threshold}天）"
    exit 0
fi

echo "以下分支超过 ${days_threshold} 天未更新（共 ${#branches_to_delete[@]} 个）："
printf "%-30s %s\n" "分支名称" "创建者"
echo "------------------------------------------------"
for entry in "${branches_to_delete[@]}"; do
    IFS='|' read branch creator <<< "$entry"
    printf "%-30s %s\n" "$branch" "$creator"
done

# 用户确认
read -p "是否确认删除这些分支？[y/N] " -n 1 -r
echo
[[ ! $REPLY =~ ^[Yy]$ ]] && { echo "操作已取消"; exit 1; }

# 执行删除
deleted_count=0
for entry in "${branches_to_delete[@]}"; do
    IFS='|' read branch_name creator <<< "$entry"

    # 删除远程分支
    if git push -q "$remote" --delete "$branch_name"; then
        echo "已删除远程分支: $branch_name (创建者: $creator)"
        ((deleted_count++))
    else
        echo "删除远程分支失败: $branch_name" >&2
        continue
    fi

    # 删除本地分支
    if [ "$delete_local" = true ]; then
        git branch -D "$branch_name" >/dev/null 2>&1 && \
        echo "已删除本地分支: $branch_name" || \
        echo "本地分支不存在: $branch_name"
    fi
done

echo "操作完成，共删除 $deleted_count 个远程分支"