updatesource.sh(file created)
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| 1 | + | #!/bin/bash | |
| 2 | + | ||
| 3 | + | # 如果遇到windows格式污染请执行： | |
| 4 | + | # sed -i 's/\r$//' updatesource.sh | |
| 5 | + | ||
| 6 | + | set -euo pipefail | |
| 7 | + | ||
| 8 | + | REPO_DIR="/etc/yum.repos.d" | |
| 9 | + | BACKUP_DIR="${REPO_DIR}/backup_$(date +%F_%H-%M-%S)" | |
| 10 | + | REPO_FILE="${REPO_DIR}/CentOS-Base.repo" | |
| 11 | + | ||
| 12 | + | # ============================== | |
| 13 | + | # 选择源 | |
| 14 | + | # ============================== | |
| 15 | + | select_mirror() { | |
| 16 | + | echo "===============================" | |
| 17 | + | echo " 选择 CentOS 7 Vault 源" | |
| 18 | + | echo "===============================" | |
| 19 | + | echo "1. 阿里云（推荐）" | |
| 20 | + | echo "2. 清华 TUNA" | |
| 21 | + | echo "3. 华为云" | |
| 22 | + | echo "4. 网易" | |
| 23 | + | echo "5. 官方 vault" | |
| 24 | + | echo "===============================" | |
| 25 | + | ||
| 26 | + | read -rp "请输入编号: " choice | |
| 27 | + | ||
| 28 | + | case "$choice" in | |
| 29 | + | 1) BASEURL="http://mirrors.aliyun.com/centos-vault/7.9.2009" ;; | |
| 30 | + | 2) BASEURL="https://mirrors.tuna.tsinghua.edu.cn/centos-vault/7.9.2009" ;; | |
| 31 | + | 3) BASEURL="https://repo.huaweicloud.com/centos-vault/7.9.2009" ;; | |
| 32 | + | 4) BASEURL="http://mirrors.163.com/centos-vault/7.9.2009" ;; | |
| 33 | + | 5) BASEURL="https://vault.centos.org/7.9.2009" ;; | |
| 34 | + | *) echo "无效选择"; exit 1 ;; | |
| 35 | + | esac | |
| 36 | + | } | |
| 37 | + | ||
| 38 | + | # ============================== | |
| 39 | + | # 备份 | |
| 40 | + | # ============================== | |
| 41 | + | backup_repo() { | |
| 42 | + | echo "[+] 备份 repo → $BACKUP_DIR" | |
| 43 | + | mkdir -p "$BACKUP_DIR" | |
| 44 | + | cp -a ${REPO_DIR}/*.repo "$BACKUP_DIR"/ 2>/dev/null || true | |
| 45 | + | } | |
| 46 | + | ||
| 47 | + | # ============================== | |
| 48 | + | # 写入 repo（无 EOF 版本） | |
| 49 | + | # ============================== | |
| 50 | + | write_repo() { | |
| 51 | + | echo "[+] 写入新 repo" | |
| 52 | + | ||
| 53 | + | # 清理旧 repo | |
| 54 | + | mkdir -p "${REPO_DIR}/bak_old" | |
| 55 | + | mv ${REPO_DIR}/*.repo "${REPO_DIR}/bak_old/" 2>/dev/null || true | |
| 56 | + | ||
| 57 | + | # 写入新 repo | |
| 58 | + | { | |
| 59 | + | echo "[base]" | |
| 60 | + | echo "name=CentOS-7 - Base" | |
| 61 | + | echo "baseurl=${BASEURL}/os/x86_64/" | |
| 62 | + | echo "enabled=1" | |
| 63 | + | echo "gpgcheck=0" | |
| 64 | + | echo "" | |
| 65 | + | ||
| 66 | + | echo "[updates]" | |
| 67 | + | echo "name=CentOS-7 - Updates" | |
| 68 | + | echo "baseurl=${BASEURL}/updates/x86_64/" | |
| 69 | + | echo "enabled=1" | |
| 70 | + | echo "gpgcheck=0" | |
| 71 | + | echo "" | |
| 72 | + | ||
| 73 | + | echo "[extras]" | |
| 74 | + | echo "name=CentOS-7 - Extras" | |
| 75 | + | echo "baseurl=${BASEURL}/extras/x86_64/" | |
| 76 | + | echo "enabled=1" | |
| 77 | + | echo "gpgcheck=0" | |
| 78 | + | } > "$REPO_FILE" | |
| 79 | + | } | |
| 80 | + | ||
| 81 | + | # ============================== | |
| 82 | + | # fastestmirror 控制 | |
| 83 | + | # ============================== | |
| 84 | + | config_fastestmirror() { | |
| 85 | + | CONF_FILE="/etc/yum/pluginconf.d/fastestmirror.conf" | |
| 86 | + | ||
| 87 | + | if [[ ! -f "$CONF_FILE" ]]; then | |
| 88 | + | echo "[!] 未找到 fastestmirror 插件，跳过" | |
| 89 | + | return | |
| 90 | + | fi | |
| 91 | + | ||
| 92 | + | read -rp "是否关闭 fastestmirror？(y/n): " fm | |
| 93 | + | ||
| 94 | + | if [[ "$fm" == "y" ]]; then | |
| 95 | + | sed -i 's/^enabled=.*/enabled=0/' "$CONF_FILE" | |
| 96 | + | echo "[+] 已关闭 fastestmirror" | |
| 97 | + | else | |
| 98 | + | sed -i 's/^enabled=.*/enabled=1/' "$CONF_FILE" | |
| 99 | + | echo "[+] 已开启 fastestmirror" | |
| 100 | + | fi | |
| 101 | + | } | |
| 102 | + | ||
| 103 | + | # ============================== | |
| 104 | + | # 刷新缓存 | |
| 105 | + | # ============================== | |
| 106 | + | refresh_cache() { | |
| 107 | + | echo "[+] 清理缓存" | |
| 108 | + | yum clean all | |
| 109 | + | ||
| 110 | + | echo "[+] 构建缓存" | |
| 111 | + | yum makecache | |
| 112 | + | } | |
| 113 | + | ||
| 114 | + | # ============================== | |
| 115 | + | # 可选组件 | |
| 116 | + | # ============================== | |
| 117 | + | install_optional() { | |
| 118 | + | read -rp "是否安装 EPEL？(y/n): " epel | |
| 119 | + | if [[ "$epel" == "y" ]]; then | |
| 120 | + | yum install -y epel-release || true | |
| 121 | + | fi | |
| 122 | + | ||
| 123 | + | read -rp "是否启用 SCLo？(y/n): " sclo | |
| 124 | + | if [[ "$sclo" == "y" ]]; then | |
| 125 | + | yum install -y centos-release-scl || true | |
| 126 | + | fi | |
| 127 | + | } | |
| 128 | + | ||
| 129 | + | # ============================== | |
| 130 | + | # 回滚 | |
| 131 | + | # ============================== | |
| 132 | + | rollback() { | |
| 133 | + | echo "[!] 可用备份：" | |
| 134 | + | ls -d ${REPO_DIR}/backup_* 2>/dev/null || { | |
| 135 | + | echo "没有备份" | |
| 136 | + | exit 1 | |
| 137 | + | } | |
| 138 | + | ||
| 139 | + | read -rp "输入备份路径: " dir | |
| 140 | + | ||
| 141 | + | if [[ -d "$dir" ]]; then | |
| 142 | + | rm -f ${REPO_DIR}/*.repo | |
| 143 | + | cp -a "$dir"/*.repo "$REPO_DIR"/ | |
| 144 | + | echo "[✓] 回滚完成" | |
| 145 | + | else | |
| 146 | + | echo "[✗] 目录不存在" | |
| 147 | + | exit 1 | |
| 148 | + | fi | |
| 149 | + | } | |
| 150 | + | ||
| 151 | + | # ============================== | |
| 152 | + | # 主流程 | |
| 153 | + | # ============================== | |
| 154 | + | main() { | |
| 155 | + | echo "1. 更换源" | |
| 156 | + | echo "2. 回滚" | |
| 157 | + | read -rp "请选择: " action | |
| 158 | + | ||
| 159 | + | case "$action" in | |
| 160 | + | 1) | |
| 161 | + | select_mirror | |
| 162 | + | backup_repo | |
| 163 | + | write_repo | |
| 164 | + | config_fastestmirror | |
| 165 | + | refresh_cache | |
| 166 | + | install_optional | |
| 167 | + | echo "[✔] 完成" | |
| 168 | + | ;; | |
| 169 | + | 2) | |
| 170 | + | rollback | |
| 171 | + | ;; | |
| 172 | + | *) | |
| 173 | + | echo "无效选择" | |
| 174 | + | exit 1 | |
| 175 | + | ;; | |
| 176 | + | esac | |
| 177 | + | } | |
| 178 | + | ||
| 179 | + | main | |
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