change tk
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zj
291
lvm_operations_tkinter.py
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291
lvm_operations_tkinter.py
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# lvm_operations_tkinter.py
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import logging
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import subprocess
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from tkinter import messagebox
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from system_info import SystemInfoManager
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logger = logging.getLogger(__name__)
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class LvmOperations:
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"""LVM 操作类 - Tkinter 版本"""
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def __init__(self, system_manager: SystemInfoManager = None):
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self.system_manager = system_manager
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def _execute_shell_command(self, command_list, error_message, root_privilege=True,
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suppress_critical_dialog_on_stderr_match=None, input_data=None,
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show_dialog=True):
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"""执行 shell 命令"""
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full_cmd_str = ' '.join(command_list)
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logger.info(f"执行命令: {full_cmd_str}")
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try:
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if self.system_manager:
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stdout, stderr = self.system_manager._run_command(
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command_list,
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root_privilege=root_privilege,
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check_output=True,
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input_data=input_data
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)
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else:
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result = subprocess.run(
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["sudo"] + command_list if root_privilege else command_list,
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capture_output=True, text=True, check=True,
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input=input_data
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)
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stdout = result.stdout
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stderr = result.stderr
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if stdout:
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logger.debug(f"命令 '{full_cmd_str}' 标准输出:\n{stdout.strip()}")
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if stderr:
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logger.debug(f"命令 '{full_cmd_str}' 标准错误:\n{stderr.strip()}")
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return True, stdout, stderr
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except subprocess.CalledProcessError as e:
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stderr_output = e.stderr.strip() if e.stderr else ""
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logger.error(f"{error_message} 命令: {full_cmd_str}")
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logger.error(f"退出码: {e.returncode}")
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logger.error(f"标准输出: {e.stdout.strip() if e.stdout else ''}")
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logger.error(f"标准错误: {stderr_output}")
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should_suppress_dialog = False
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if suppress_critical_dialog_on_stderr_match:
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if isinstance(suppress_critical_dialog_on_stderr_match, str):
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if suppress_critical_dialog_on_stderr_match in stderr_output:
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should_suppress_dialog = True
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elif isinstance(suppress_critical_dialog_on_stderr_match, (list, tuple)):
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for pattern in suppress_critical_dialog_on_stderr_match:
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if pattern in stderr_output:
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should_suppress_dialog = True
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break
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if should_suppress_dialog:
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logger.info(f"特定错误 '{stderr_output}' 匹配抑制条件，已抑制错误对话框。")
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elif show_dialog:
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messagebox.showerror("错误", f"{error_message}\n错误详情: {stderr_output}")
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return False, e.stdout if e.stdout else "", stderr_output
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except FileNotFoundError:
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logger.error(f"命令 '{command_list[0]}' 未找到。请确保已安装相关工具。")
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if show_dialog:
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messagebox.showerror("错误", f"命令 '{command_list[0]}' 未找到。请确保已安装相关工具。")
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return False, "", "Command not found."
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except Exception as e:
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logger.error(f"执行命令时发生未知错误: {e}")
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if show_dialog:
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messagebox.showerror("错误", f"执行命令时发生未知错误: {e}")
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return False, "", str(e)
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def create_pv(self, device_path):
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"""创建物理卷"""
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if not device_path or not device_path.startswith('/dev/'):
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messagebox.showerror("错误", "无效的设备路径。")
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return False
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if not messagebox.askyesno("确认创建物理卷",
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f"您确定要在 {device_path} 上创建物理卷吗？\n"
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"此操作将擦除设备上的数据！",
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default=messagebox.NO):
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logger.info(f"用户取消了在 {device_path} 上创建物理卷的操作。")
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return False
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logger.info(f"尝试在 {device_path} 上创建物理卷。")
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success, stdout, stderr = self._execute_shell_command(
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["pvcreate", "-y", device_path],
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f"在 {device_path} 上创建物理卷失败"
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)
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if success:
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messagebox.showinfo("成功", f"物理卷已在 {device_path} 上成功创建。")
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return True
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else:
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if "partition" in stderr.lower() or "分区" in stderr:
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if messagebox.askyesno("警告",
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f"设备 {device_path} 似乎已有分区。\n"
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"是否继续擦除并创建物理卷？",
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default=messagebox.NO):
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success_wipe, _, _ = self._execute_shell_command(
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["wipefs", "-a", device_path],
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f"擦除设备 {device_path} 失败"
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)
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if success_wipe:
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success_pv, _, stderr_pv = self._execute_shell_command(
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["pvcreate", "-y", device_path],
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f"在 {device_path} 上创建物理卷失败"
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)
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if success_pv:
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messagebox.showinfo("成功", f"物理卷已在 {device_path} 上成功创建。")
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return True
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else:
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messagebox.showerror("错误", f"在 {device_path} 上创建物理卷失败: {stderr_pv}")
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else:
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messagebox.showinfo("信息", f"未在已分区设备 {device_path} 上创建物理卷。")
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return False
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def delete_pv(self, device_path):
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"""删除物理卷"""
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if not device_path or not device_path.startswith('/dev/'):
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messagebox.showerror("错误", "无效的设备路径。")
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return False
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if not messagebox.askyesno("确认删除物理卷",
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f"您确定要删除物理卷 {device_path} 吗？",
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default=messagebox.NO):
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logger.info(f"用户取消了删除物理卷 {device_path} 的操作。")
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return False
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logger.info(f"尝试删除物理卷 {device_path}。")
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success, stdout, stderr = self._execute_shell_command(
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["pvremove", "-y", device_path],
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f"删除物理卷 {device_path} 失败"
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)
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if success:
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messagebox.showinfo("成功", f"物理卷 {device_path} 已成功删除。")
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return True
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return False
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def create_vg(self, vg_name, pvs):
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"""创建卷组"""
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if not vg_name or not pvs:
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messagebox.showerror("错误", "无效的卷组名称或物理卷路径。")
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return False
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if not messagebox.askyesno("确认创建卷组",
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f"您确定要创建卷组 {vg_name} 吗？\n"
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f"使用物理卷: {', '.join(pvs)}",
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default=messagebox.NO):
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logger.info(f"用户取消了创建卷组 {vg_name} 的操作。")
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return False
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logger.info(f"尝试创建卷组 {vg_name}，使用物理卷: {pvs}")
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cmd = ["vgcreate", vg_name] + pvs
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success, stdout, stderr = self._execute_shell_command(
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cmd,
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f"创建卷组 {vg_name} 失败"
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)
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if success:
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messagebox.showinfo("成功", f"卷组 {vg_name} 已成功创建。")
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return True
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return False
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def delete_vg(self, vg_name):
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"""删除卷组"""
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if not vg_name:
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messagebox.showerror("错误", "无效的卷组名称。")
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return False
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if not messagebox.askyesno("确认删除卷组",
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f"您确定要删除卷组 {vg_name} 吗？\n"
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"此操作将删除该卷组及其所有逻辑卷！",
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default=messagebox.NO):
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logger.info(f"用户取消了删除卷组 {vg_name} 的操作。")
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return False
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logger.info(f"尝试删除卷组 {vg_name}。")
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success, stdout, stderr = self._execute_shell_command(
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["vgremove", "-y", vg_name],
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f"删除卷组 {vg_name} 失败"
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)
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if success:
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messagebox.showinfo("成功", f"卷组 {vg_name} 已成功删除。")
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return True
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return False
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def create_lv(self, lv_name, vg_name, size_gb, use_max_space=False):
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"""创建逻辑卷"""
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if not lv_name or not vg_name:
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messagebox.showerror("错误", "无效的逻辑卷名称或卷组名称。")
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return False
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if not use_max_space and size_gb <= 0:
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messagebox.showerror("错误", "逻辑卷大小必须大于0。")
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return False
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size_str = "100%FREE" if use_max_space else f"{size_gb}G"
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if not messagebox.askyesno("确认创建逻辑卷",
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f"您确定要在卷组 {vg_name} 中创建逻辑卷 {lv_name} 吗？\n"
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f"大小: {size_str}",
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default=messagebox.NO):
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logger.info(f"用户取消了创建逻辑卷 {lv_name} 的操作。")
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return False
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logger.info(f"尝试在卷组 {vg_name} 中创建逻辑卷 {lv_name}，大小: {size_str}")
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cmd = ["lvcreate", "-y", "-n", lv_name, "-L", size_str, vg_name] if not use_max_space else \
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["lvcreate", "-y", "-n", lv_name, "-l", "100%FREE", vg_name]
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success, stdout, stderr = self._execute_shell_command(
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cmd,
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f"创建逻辑卷 {lv_name} 失败"
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)
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if success:
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messagebox.showinfo("成功", f"逻辑卷 {lv_name} 已在卷组 {vg_name} 中成功创建。")
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return True
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return False
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def delete_lv(self, lv_name, vg_name):
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"""删除逻辑卷"""
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if not lv_name or not vg_name:
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messagebox.showerror("错误", "无效的逻辑卷名称或卷组名称。")
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return False
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if not messagebox.askyesno("确认删除逻辑卷",
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f"您确定要删除逻辑卷 {vg_name}/{lv_name} 吗？\n"
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"此操作将删除该逻辑卷及其所有数据！",
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default=messagebox.NO):
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logger.info(f"用户取消了删除逻辑卷 {lv_name} 的操作。")
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return False
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logger.info(f"尝试删除逻辑卷 {vg_name}/{lv_name}。")
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success, stdout, stderr = self._execute_shell_command(
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["lvremove", "-y", f"{vg_name}/{lv_name}"],
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f"删除逻辑卷 {vg_name}/{lv_name} 失败"
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)
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if success:
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messagebox.showinfo("成功", f"逻辑卷 {vg_name}/{lv_name} 已成功删除。")
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return True
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return False
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def activate_lv(self, lv_name, vg_name):
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"""激活逻辑卷"""
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if not lv_name or not vg_name:
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messagebox.showerror("错误", "无效的逻辑卷名称或卷组名称。")
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return False
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logger.info(f"尝试激活逻辑卷 {vg_name}/{lv_name}。")
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success, stdout, stderr = self._execute_shell_command(
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["lvchange", "-ay", f"{vg_name}/{lv_name}"],
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f"激活逻辑卷 {vg_name}/{lv_name} 失败"
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)
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if success:
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messagebox.showinfo("成功", f"逻辑卷 {vg_name}/{lv_name} 已成功激活。")
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return True
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return False
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def deactivate_lv(self, lv_name, vg_name):
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"""停用逻辑卷"""
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if not lv_name or not vg_name:
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messagebox.showerror("错误", "无效的逻辑卷名称或卷组名称。")
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return False
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logger.info(f"尝试停用逻辑卷 {vg_name}/{lv_name}。")
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success, stdout, stderr = self._execute_shell_command(
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["lvchange", "-an", f"{vg_name}/{lv_name}"],
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f"停用逻辑卷 {vg_name}/{lv_name} 失败"
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)
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if success:
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messagebox.showinfo("成功", f"逻辑卷 {vg_name}/{lv_name} 已成功停用。")
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return True
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return False
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